[fusion-commits] r1386 - in trunk: . lib/OpenLayers

svn_fusion at osgeo.org svn_fusion at osgeo.org
Fri Apr 25 15:15:52 EDT 2008


Author: madair
Date: 2008-04-25 15:15:52 -0400 (Fri, 25 Apr 2008)
New Revision: 1386

Modified:
   trunk/build.xml
   trunk/lib/OpenLayers/OpenLayers.js
   trunk/parseAppDef.xsl
Log:
re #53: file clean up

Modified: trunk/build.xml
===================================================================
--- trunk/build.xml	2008-04-25 18:44:42 UTC (rev 1385)
+++ trunk/build.xml	2008-04-25 19:15:52 UTC (rev 1386)
@@ -162,8 +162,7 @@
     </exec>
   </target>
     
-  <!--
-  <target description="Create documentation" name="docs2" depends="prepare">
+  <target description="Create documentation" name="widgetInfo" depends="prepare">
     <delete dir="${build.home}/docs/widgetinfo"/>
     <mkdir dir="${build.home}/docs/widgetinfo"/>
     <xslt basedir="${basedir}/widgets/widgetinfo" 
@@ -171,16 +170,14 @@
           style="${basedir}/widgets/widgetinfo/widgetInfo.xsl" 
           excludes="WidgetInfoTemplate.xml widgetInfo.xsl"/>
   </target>
-  -->
 
 <!-- =================== single file build ================================== -->
-
   <target description="single file build" name="singleFile" depends="prepare">
     <echo message="preparing single file build for ${appDef}"/>
     <delete dir="${build.home}/lib/fusionSF.js"/>
     <delete dir="${build.home}/appDefFileset.xml"/>
     
-    <!-- generate the list of fiels for this Application and load as a property -->
+    <!-- generate the list of files for this Application and load as a property -->
     <xslt in="${appDef}" 
           out="${build.home}/appDefFileset.xml"
           style="${basedir}/parseAppDef.xsl">
@@ -217,13 +214,12 @@
                           Search.js
                           Map.js"
         />
-        <!--fileset dir="${build.home}/MapGuide" includes="*.js" excludesfile="MapGuide/MapGuideViewerApi.js"/>
-        <fileset dir="${build.home}/MapServer" includes="*.js"/-->
         <fileset dir="${build.home}/text" includes="**/*.json"/>
         <filelist dir="${build.home}" files="${AppDef.Maps}"/>
         <filelist dir="${build.home}" files="${AppDef.Widgets}"/>
         <filelist dir="${build.home}" files="appDef.json configHeader.json config.json"/>
     </concat>
+    
     <echo message="compressing..."/>
     <java jar="${YUIcompressor}" fork="true"
           output="${build.home}/lib/fusionSF-compressed.js">
@@ -260,8 +256,12 @@
         <fileset dir="${build.home}/widgets" includes="*.js **/*.js" excludes="Recenter.js"/>
     </concat>
     <echo message="compressing..."/>
-    <exec executable="jsmin.exe" os="Windows Vista, Windows XP" 
-      input="${build.home}/lib/fusion-combined.js" output="${build.home}/lib/fusion-compressed.js"/>
+    <java jar="${YUIcompressor}" fork="true"
+          output="${build.home}/lib/fusionSF-compressed.js">
+        <arg value="${build.home}/lib/fusionSF.js"/>
+    </java>
+    <!--exec executable="jsmin.exe" os="Windows Vista, Windows XP" 
+      input="${build.home}/lib/fusion-combined.js" output="${build.home}/lib/fusion-compressed.js"/-->
   </target>
 
 <!-- ==================== Deploy ========================================== -->

Modified: trunk/lib/OpenLayers/OpenLayers.js
===================================================================
--- trunk/lib/OpenLayers/OpenLayers.js	2008-04-25 18:44:42 UTC (rev 1385)
+++ trunk/lib/OpenLayers/OpenLayers.js	2008-04-25 19:15:52 UTC (rev 1386)
@@ -43,487 +43,15613 @@
 *
 **/
 
-var OpenLayers={singleFile:true};(function(){var singleFile=(typeof OpenLayers=="object"&&OpenLayers.singleFile);window.OpenLayers={_scriptName:(!singleFile)?"lib/OpenLayers.js":"OpenLayers.js",_getScriptLocation:function(){var scriptLocation="";var scriptName=OpenLayers._scriptName;var scripts=document.getElementsByTagName('script');for(var i=0;i<scripts.length;i++){var src=scripts[i].getAttribute('src');if(src){var index=src.lastIndexOf(scriptName);var pathLength=src.lastIndexOf('?');if(pathLength<0){pathLength=src.length;}
-if((index>-1)&&(index+scriptName.length==pathLength)){scriptLocation=src.slice(0,pathLength-scriptName.length);break;}}}
-return scriptLocation;}};if(!singleFile){var jsfiles=new Array("OpenLayers/Util.js","OpenLayers/BaseTypes.js","OpenLayers/BaseTypes/Class.js","OpenLayers/BaseTypes/Bounds.js","OpenLayers/BaseTypes/Element.js","OpenLayers/BaseTypes/LonLat.js","OpenLayers/BaseTypes/Pixel.js","OpenLayers/BaseTypes/Size.js","OpenLayers/Console.js","OpenLayers/Tween.js","Rico/Corner.js","Rico/Color.js","OpenLayers/Ajax.js","OpenLayers/Events.js","OpenLayers/Projection.js","OpenLayers/Map.js","OpenLayers/Layer.js","OpenLayers/Icon.js","OpenLayers/Marker.js","OpenLayers/Marker/Box.js","OpenLayers/Popup.js","OpenLayers/Tile.js","OpenLayers/Tile/Image.js","OpenLayers/Tile/WFS.js","OpenLayers/Layer/Image.js","OpenLayers/Layer/SphericalMercator.js","OpenLayers/Layer/EventPane.js","OpenLayers/Layer/FixedZoomLevels.js","OpenLayers/Layer/Google.js","OpenLayers/Layer/VirtualEarth.js","OpenLayers/Layer/Yahoo.js","OpenLayers/Layer/HTTPRequest.js","OpenLayers/Layer/Grid.js","OpenLayers/Layer/MapGuide.js","OpenLayers/Layer/MapServer.js","OpenLayers/Layer/MapServer/Untiled.js","OpenLayers/Layer/KaMap.js","OpenLayers/Layer/MultiMap.js","OpenLayers/Layer/Markers.js","OpenLayers/Layer/Text.js","OpenLayers/Layer/WorldWind.js","OpenLayers/Layer/WMS.js","OpenLayers/Layer/WMS/Untiled.js","OpenLayers/Layer/GeoRSS.js","OpenLayers/Layer/Boxes.js","OpenLayers/Layer/TMS.js","OpenLayers/Layer/TileCache.js","OpenLayers/Popup/Anchored.js","OpenLayers/Popup/AnchoredBubble.js","OpenLayers/Popup/Framed.js","OpenLayers/Popup/FramedCloud.js","OpenLayers/Feature.js","OpenLayers/Feature/Vector.js","OpenLayers/Feature/WFS.js","OpenLayers/Handler.js","OpenLayers/Handler/Click.js","OpenLayers/Handler/Hover.js","OpenLayers/Handler/Point.js","OpenLayers/Handler/Path.js","OpenLayers/Handler/Polygon.js","OpenLayers/Handler/Feature.js","OpenLayers/Handler/Drag.js","OpenLayers/Handler/RegularPolygon.js","OpenLayers/Handler/Box.js","OpenLayers/Handler/MouseWheel.js","OpenLayers/Handler/Keyboard.js","OpenLayers/Control.js","OpenLayers/Control/Attribution.js","OpenLayers/Control/Button.js","OpenLayers/Control/ZoomBox.js","OpenLayers/Control/ZoomToMaxExtent.js","OpenLayers/Control/DragPan.js","OpenLayers/Control/Navigation.js","OpenLayers/Control/MouseDefaults.js","OpenLayers/Control/MousePosition.js","OpenLayers/Control/OverviewMap.js","OpenLayers/Control/KeyboardDefaults.js","OpenLayers/Control/PanZoom.js","OpenLayers/Control/PanZoomBar.js","OpenLayers/Control/ArgParser.js","OpenLayers/Control/Permalink.js","OpenLayers/Control/Scale.js","OpenLayers/Control/ScaleLine.js","OpenLayers/Control/LayerSwitcher.js","OpenLayers/Control/DrawFeature.js","OpenLayers/Control/DragFeature.js","OpenLayers/Control/ModifyFeature.js","OpenLayers/Control/Panel.js","OpenLayers/Control/SelectFeature.js","OpenLayers/Control/NavigationHistory.js","OpenLayers/Geometry.js","OpenLayers/Geometry/Rectangle.js","OpenLayers/Geometry/Collection.js","OpenLayers/Geometry/Point.js","OpenLayers/Geometry/MultiPoint.js","OpenLayers/Geometry/Curve.js","OpenLayers/Geometry/LineString.js","OpenLayers/Geometry/LinearRing.js","OpenLayers/Geometry/Polygon.js","OpenLayers/Geometry/MultiLineString.js","OpenLayers/Geometry/MultiPolygon.js","OpenLayers/Geometry/Surface.js","OpenLayers/Renderer.js","OpenLayers/Renderer/Elements.js","OpenLayers/Renderer/SVG.js","OpenLayers/Renderer/VML.js","OpenLayers/Layer/Vector.js","OpenLayers/Layer/PointTrack.js","OpenLayers/Layer/GML.js","OpenLayers/Style.js","OpenLayers/StyleMap.js","OpenLayers/Rule.js","OpenLayers/Filter.js","OpenLayers/Filter/FeatureId.js","OpenLayers/Filter/Logical.js","OpenLayers/Filter/Comparison.js","OpenLayers/Format.js","OpenLayers/Format/XML.js","OpenLayers/Format/GML.js","OpenLayers/Format/KML.js","OpenLayers/Format/GeoRSS.js","OpenLayers/Format/WFS.js","OpenLayers/Format/WKT.js","OpenLayers/Format/OSM.js","OpenLayers/Format/SLD.js","OpenLayers/Format/SLD/v1.js","OpenLayers/Format/SLD/v1_0_0.js","OpenLayers/Format/Text.js","OpenLayers/Format/JSON.js","OpenLayers/Format/GeoJSON.js","OpenLayers/Format/WMC.js","OpenLayers/Format/WMC/v1.js","OpenLayers/Format/WMC/v1_0_0.js","OpenLayers/Format/WMC/v1_1_0.js","OpenLayers/Layer/WFS.js","OpenLayers/Control/MouseToolbar.js","OpenLayers/Control/NavToolbar.js","OpenLayers/Control/EditingToolbar.js","OpenLayers/Lang.js","OpenLayers/Lang/en.js");var agent=navigator.userAgent;var docWrite=(agent.match("MSIE")||agent.match("Safari"));if(docWrite){var allScriptTags=new Array(jsfiles.length);}
-var host=OpenLayers._getScriptLocation()+"lib/";for(var i=0;i<jsfiles.length;i++){if(docWrite){allScriptTags[i]="<script src='"+host+jsfiles[i]+"'></script>";}else{var s=document.createElement("script");s.src=host+jsfiles[i];var h=document.getElementsByTagName("head").length?document.getElementsByTagName("head")[0]:document.body;h.appendChild(s);}}
-if(docWrite){document.write(allScriptTags.join(""));}}})();OpenLayers.VERSION_NUMBER="$Revision$";OpenLayers.String={startsWith:function(str,sub){return(str.indexOf(sub)==0);},contains:function(str,sub){return(str.indexOf(sub)!=-1);},trim:function(str){return str.replace(/^\s*(.*?)\s*$/,"$1");},camelize:function(str){var oStringList=str.split('-');var camelizedString=oStringList[0];for(var i=1;i<oStringList.length;i++){var s=oStringList[i];camelizedString+=s.charAt(0).toUpperCase()+s.substring(1);}
-return camelizedString;},format:function(template,context,args){if(!context){context=window;}
-var tokens=template.split("${");var item,last,replacement;for(var i=1;i<tokens.length;i++){item=tokens[i];last=item.indexOf("}");if(last>0){replacement=context[item.substring(0,last)];if(typeof replacement=="function"){replacement=args?replacement.apply(null,args):replacement();}
-tokens[i]=replacement+item.substring(++last);}else{tokens[i]="${"+item;}}
-return tokens.join("");}};if(!String.prototype.startsWith){String.prototype.startsWith=function(sStart){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.startsWith'}));return OpenLayers.String.startsWith(this,sStart);};}
-if(!String.prototype.contains){String.prototype.contains=function(str){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.contains'}));return OpenLayers.String.contains(this,str);};}
-if(!String.prototype.trim){String.prototype.trim=function(){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.trim'}));return OpenLayers.String.trim(this);};}
-if(!String.prototype.camelize){String.prototype.camelize=function(){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.camelize'}));return OpenLayers.String.camelize(this);};}
-OpenLayers.Number={decimalSeparator:".",thousandsSeparator:",",limitSigDigs:function(num,sig){var fig=0;if(sig>0){fig=parseFloat(num.toPrecision(sig));}
-return fig;},format:function(num,dec,tsep,dsep){dec=(typeof dec!="undefined")?dec:0;tsep=(typeof tsep!="undefined")?tsep:OpenLayers.Number.thousandsSeparator;dsep=(typeof dsep!="undefined")?dsep:OpenLayers.Number.decimalSeparator;if(dec!=null){num=parseFloat(num.toFixed(dec));}
-var parts=num.toString().split(".");if(parts.length==1&&dec==null){dec=0;}
-var integer=parts[0];if(tsep){var thousands=/(-?[0-9]+)([0-9]{3})/;while(thousands.test(integer)){integer=integer.replace(thousands,"$1"+tsep+"$2");}}
-var str;if(dec==0){str=integer;}else{var rem=parts.length>1?parts[1]:"0";if(dec!=null){rem=rem+new Array(dec-rem.length+1).join("0");}
-str=integer+dsep+rem;}
-return str;}};if(!Number.prototype.limitSigDigs){Number.prototype.limitSigDigs=function(sig){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.limitSigDigs'}));return OpenLayers.Number.limitSigDigs(this,sig);};}
-OpenLayers.Function={bind:function(func,object){var args=Array.prototype.slice.apply(arguments,[2]);return function(){var newArgs=args.concat(Array.prototype.slice.apply(arguments,[0]));return func.apply(object,newArgs);};},bindAsEventListener:function(func,object){return function(event){return func.call(object,event||window.event);};}};if(!Function.prototype.bind){Function.prototype.bind=function(){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.bind'}));Array.prototype.unshift.apply(arguments,[this]);return OpenLayers.Function.bind.apply(null,arguments);};}
-if(!Function.prototype.bindAsEventListener){Function.prototype.bindAsEventListener=function(object){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.String.bindAsEventListener'}));return OpenLayers.Function.bindAsEventListener(this,object);};}
-OpenLayers.Array={filter:function(array,callback,caller){var selected=[];if(Array.prototype.filter){selected=array.filter(callback,caller);}else{var len=array.length;if(typeof callback!="function"){throw new TypeError();}
-for(var i=0;i<len;i++){if(i in array){var val=array[i];if(callback.call(caller,val,i,array)){selected.push(val);}}}}
-return selected;}};OpenLayers.Class=function(){var Class=function(){if(arguments&&arguments[0]!=OpenLayers.Class.isPrototype){this.initialize.apply(this,arguments);}};var extended={};var parent;for(var i=0;i<arguments.length;++i){if(typeof arguments[i]=="function"){parent=arguments[i].prototype;}else{parent=arguments[i];}
-OpenLayers.Util.extend(extended,parent);}
-Class.prototype=extended;return Class;};OpenLayers.Class.isPrototype=function(){};OpenLayers.Class.create=function(){return function(){if(arguments&&arguments[0]!=OpenLayers.Class.isPrototype){this.initialize.apply(this,arguments);}};};OpenLayers.Class.inherit=function(){var superClass=arguments[0];var proto=new superClass(OpenLayers.Class.isPrototype);for(var i=1;i<arguments.length;i++){if(typeof arguments[i]=="function"){var mixin=arguments[i];arguments[i]=new mixin(OpenLayers.Class.isPrototype);}
-OpenLayers.Util.extend(proto,arguments[i]);}
-return proto;};OpenLayers.Util={};OpenLayers.Util.getElement=function(){var elements=[];for(var i=0;i<arguments.length;i++){var element=arguments[i];if(typeof element=='string'){element=document.getElementById(element);}
-if(arguments.length==1){return element;}
-elements.push(element);}
-return elements;};if($==null){var $=OpenLayers.Util.getElement;}
-OpenLayers.Util.extend=function(destination,source){if(destination&&source){for(var property in source){var value=source[property];if(value!==undefined){destination[property]=value;}}
-var sourceIsEvt=typeof window.Event=="function"&&source instanceof window.Event;if(!sourceIsEvt&&source.hasOwnProperty&&source.hasOwnProperty('toString')){destination.toString=source.toString;}}
-return destination;};OpenLayers.Util.removeItem=function(array,item){for(var i=array.length-1;i>=0;i--){if(array[i]==item){array.splice(i,1);}}
-return array;};OpenLayers.Util.clearArray=function(array){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'array = []'}));array.length=0;};OpenLayers.Util.indexOf=function(array,obj){for(var i=0;i<array.length;i++){if(array[i]==obj){return i;}}
-return-1;};OpenLayers.Util.modifyDOMElement=function(element,id,px,sz,position,border,overflow,opacity){if(id){element.id=id;}
-if(px){element.style.left=px.x+"px";element.style.top=px.y+"px";}
-if(sz){element.style.width=sz.w+"px";element.style.height=sz.h+"px";}
-if(position){element.style.position=position;}
-if(border){element.style.border=border;}
-if(overflow){element.style.overflow=overflow;}
-if(parseFloat(opacity)>=0.0&&parseFloat(opacity)<1.0){element.style.filter='alpha(opacity='+(opacity*100)+')';element.style.opacity=opacity;}else if(parseFloat(opacity)==1.0){element.style.filter='';element.style.opacity='';}};OpenLayers.Util.createDiv=function(id,px,sz,imgURL,position,border,overflow,opacity){var dom=document.createElement('div');if(imgURL){dom.style.backgroundImage='url('+imgURL+')';}
-if(!id){id=OpenLayers.Util.createUniqueID("OpenLayersDiv");}
-if(!position){position="absolute";}
-OpenLayers.Util.modifyDOMElement(dom,id,px,sz,position,border,overflow,opacity);return dom;};OpenLayers.Util.createImage=function(id,px,sz,imgURL,position,border,opacity,delayDisplay){var image=document.createElement("img");if(!id){id=OpenLayers.Util.createUniqueID("OpenLayersDiv");}
-if(!position){position="relative";}
-OpenLayers.Util.modifyDOMElement(image,id,px,sz,position,border,null,opacity);if(delayDisplay){image.style.display="none";OpenLayers.Event.observe(image,"load",OpenLayers.Function.bind(OpenLayers.Util.onImageLoad,image));OpenLayers.Event.observe(image,"error",OpenLayers.Function.bind(OpenLayers.Util.onImageLoadError,image));}
-image.style.alt=id;image.galleryImg="no";if(imgURL){image.src=imgURL;}
-return image;};OpenLayers.Util.setOpacity=function(element,opacity){OpenLayers.Util.modifyDOMElement(element,null,null,null,null,null,null,opacity);};OpenLayers.Util.onImageLoad=function(){if(!this.viewRequestID||(this.map&&this.viewRequestID==this.map.viewRequestID)){this.style.backgroundColor=null;this.style.display="";}};OpenLayers.Util.onImageLoadErrorColor="pink";OpenLayers.IMAGE_RELOAD_ATTEMPTS=0;OpenLayers.Util.onImageLoadError=function(){this._attempts=(this._attempts)?(this._attempts+1):1;if(this._attempts<=OpenLayers.IMAGE_RELOAD_ATTEMPTS){this.src=this.src;}else{this.style.backgroundColor=OpenLayers.Util.onImageLoadErrorColor;}
-this.style.display="";};OpenLayers.Util.alphaHack=function(){var arVersion=navigator.appVersion.split("MSIE");var version=parseFloat(arVersion[1]);var filter=false;try{filter=!!(document.body.filters);}catch(e){}
-return(filter&&(version>=5.5)&&(version<7));};OpenLayers.Util.modifyAlphaImageDiv=function(div,id,px,sz,imgURL,position,border,sizing,opacity){OpenLayers.Util.modifyDOMElement(div,id,px,sz,null,null,null,opacity);var img=div.childNodes[0];if(imgURL){img.src=imgURL;}
-OpenLayers.Util.modifyDOMElement(img,div.id+"_innerImage",null,sz,"relative",border);if(OpenLayers.Util.alphaHack()){div.style.display="inline-block";if(sizing==null){sizing="scale";}
-div.style.filter="progid:DXImageTransform.Microsoft"+".AlphaImageLoader(src='"+img.src+"', "+"sizingMethod='"+sizing+"')";if(parseFloat(div.style.opacity)>=0.0&&parseFloat(div.style.opacity)<1.0){div.style.filter+=" alpha(opacity="+div.style.opacity*100+")";}
-img.style.filter="alpha(opacity=0)";}};OpenLayers.Util.createAlphaImageDiv=function(id,px,sz,imgURL,position,border,sizing,opacity,delayDisplay){var div=OpenLayers.Util.createDiv();var img=OpenLayers.Util.createImage(null,null,null,null,null,null,null,false);div.appendChild(img);if(delayDisplay){img.style.display="none";OpenLayers.Event.observe(img,"load",OpenLayers.Function.bind(OpenLayers.Util.onImageLoad,div));OpenLayers.Event.observe(img,"error",OpenLayers.Function.bind(OpenLayers.Util.onImageLoadError,div));}
-OpenLayers.Util.modifyAlphaImageDiv(div,id,px,sz,imgURL,position,border,sizing,opacity);return div;};OpenLayers.Util.upperCaseObject=function(object){var uObject={};for(var key in object){uObject[key.toUpperCase()]=object[key];}
-return uObject;};OpenLayers.Util.applyDefaults=function(to,from){var fromIsEvt=typeof window.Event=="function"&&from instanceof window.Event;for(var key in from){if(to[key]===undefined||(!fromIsEvt&&from.hasOwnProperty&&from.hasOwnProperty(key)&&!to.hasOwnProperty(key))){to[key]=from[key];}}
-if(!fromIsEvt&&from.hasOwnProperty&&from.hasOwnProperty('toString')&&!to.hasOwnProperty('toString')){to.toString=from.toString;}
-return to;};OpenLayers.Util.getParameterString=function(params){var paramsArray=[];for(var key in params){var value=params[key];if((value!=null)&&(typeof value!='function')){var encodedValue;if(typeof value=='object'&&value.constructor==Array){var encodedItemArray=[];for(var itemIndex=0;itemIndex<value.length;itemIndex++){encodedItemArray.push(encodeURIComponent(value[itemIndex]));}
-encodedValue=encodedItemArray.join(",");}
-else{encodedValue=encodeURIComponent(value);}
-paramsArray.push(encodeURIComponent(key)+"="+encodedValue);}}
-return paramsArray.join("&");};OpenLayers.ImgPath='';OpenLayers.Util.getImagesLocation=function(){return OpenLayers.ImgPath||(OpenLayers._getScriptLocation()+"img/");};OpenLayers.Util.Try=function(){var returnValue=null;for(var i=0;i<arguments.length;i++){var lambda=arguments[i];try{returnValue=lambda();break;}catch(e){}}
-return returnValue;};OpenLayers.Util.getNodes=function(p,tagName){var nodes=OpenLayers.Util.Try(function(){return OpenLayers.Util._getNodes(p.documentElement.childNodes,tagName);},function(){return OpenLayers.Util._getNodes(p.childNodes,tagName);});return nodes;};OpenLayers.Util._getNodes=function(nodes,tagName){var retArray=[];for(var i=0;i<nodes.length;i++){if(nodes[i].nodeName==tagName){retArray.push(nodes[i]);}}
-return retArray;};OpenLayers.Util.getTagText=function(parent,item,index){var result=OpenLayers.Util.getNodes(parent,item);if(result&&(result.length>0))
-{if(!index){index=0;}
-if(result[index].childNodes.length>1){return result.childNodes[1].nodeValue;}
-else if(result[index].childNodes.length==1){return result[index].firstChild.nodeValue;}}else{return"";}};OpenLayers.Util.getXmlNodeValue=function(node){var val=null;OpenLayers.Util.Try(function(){val=node.text;if(!val){val=node.textContent;}
-if(!val){val=node.firstChild.nodeValue;}},function(){val=node.textContent;});return val;};OpenLayers.Util.mouseLeft=function(evt,div){var target=(evt.relatedTarget)?evt.relatedTarget:evt.toElement;while(target!=div&&target!=null){target=target.parentNode;}
-return(target!=div);};OpenLayers.Util.rad=function(x){return x*Math.PI/180;};OpenLayers.Util.distVincenty=function(p1,p2){var a=6378137,b=6356752.3142,f=1/298.257223563;var L=OpenLayers.Util.rad(p2.lon-p1.lon);var U1=Math.atan((1-f)*Math.tan(OpenLayers.Util.rad(p1.lat)));var U2=Math.atan((1-f)*Math.tan(OpenLayers.Util.rad(p2.lat)));var sinU1=Math.sin(U1),cosU1=Math.cos(U1);var sinU2=Math.sin(U2),cosU2=Math.cos(U2);var lambda=L,lambdaP=2*Math.PI;var iterLimit=20;while(Math.abs(lambda-lambdaP)>1e-12&&--iterLimit>0){var sinLambda=Math.sin(lambda),cosLambda=Math.cos(lambda);var sinSigma=Math.sqrt((cosU2*sinLambda)*(cosU2*sinLambda)+
-(cosU1*sinU2-sinU1*cosU2*cosLambda)*(cosU1*sinU2-sinU1*cosU2*cosLambda));if(sinSigma==0){return 0;}
-var cosSigma=sinU1*sinU2+cosU1*cosU2*cosLambda;var sigma=Math.atan2(sinSigma,cosSigma);var alpha=Math.asin(cosU1*cosU2*sinLambda/sinSigma);var cosSqAlpha=Math.cos(alpha)*Math.cos(alpha);var cos2SigmaM=cosSigma-2*sinU1*sinU2/cosSqAlpha;var C=f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));lambdaP=lambda;lambda=L+(1-C)*f*Math.sin(alpha)*(sigma+C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));}
-if(iterLimit==0){return NaN;}
-var uSq=cosSqAlpha*(a*a-b*b)/(b*b);var A=1+uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));var B=uSq/1024*(256+uSq*(-128+uSq*(74-47*uSq)));var deltaSigma=B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
-B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));var s=b*A*(sigma-deltaSigma);var d=s.toFixed(3)/1000;return d;};OpenLayers.Util.getParameters=function(url){url=url||window.location.href;var paramsString="";if(OpenLayers.String.contains(url,'?')){var start=url.indexOf('?')+1;var end=OpenLayers.String.contains(url,"#")?url.indexOf('#'):url.length;paramsString=url.substring(start,end);}
-var parameters={};var pairs=paramsString.split(/[&;]/);for(var i=0;i<pairs.length;++i){var keyValue=pairs[i].split('=');if(keyValue[0]){var key=decodeURIComponent(keyValue[0]);var value=keyValue[1]||'';value=value.split(",");for(var j=0;j<value.length;j++){value[j]=decodeURIComponent(value[j]);}
-if(value.length==1){value=value[0];}
-parameters[key]=value;}}
-return parameters;};OpenLayers.Util.getArgs=function(url){OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",{'newMethod':'OpenLayers.Util.getParameters'}));return OpenLayers.Util.getParameters(url);};OpenLayers.Util.lastSeqID=0;OpenLayers.Util.createUniqueID=function(prefix){if(prefix==null){prefix="id_";}
-OpenLayers.Util.lastSeqID+=1;return prefix+OpenLayers.Util.lastSeqID;};OpenLayers.INCHES_PER_UNIT={'inches':1.0,'ft':12.0,'mi':63360.0,'m':39.3701,'km':39370.1,'dd':4374754,'yd':36};OpenLayers.INCHES_PER_UNIT["in"]=OpenLayers.INCHES_PER_UNIT.inches;OpenLayers.INCHES_PER_UNIT["degrees"]=OpenLayers.INCHES_PER_UNIT.dd;OpenLayers.INCHES_PER_UNIT["nmi"]=1852*OpenLayers.INCHES_PER_UNIT.m;OpenLayers.DOTS_PER_INCH=72;OpenLayers.Util.normalizeScale=function(scale){var normScale=(scale>1.0)?(1.0/scale):scale;return normScale;};OpenLayers.Util.getResolutionFromScale=function(scale,units){if(units==null){units="degrees";}
-var normScale=OpenLayers.Util.normalizeScale(scale);var resolution=1/(normScale*OpenLayers.INCHES_PER_UNIT[units]*OpenLayers.DOTS_PER_INCH);return resolution;};OpenLayers.Util.getScaleFromResolution=function(resolution,units){if(units==null){units="degrees";}
-var scale=resolution*OpenLayers.INCHES_PER_UNIT[units]*OpenLayers.DOTS_PER_INCH;return scale;};OpenLayers.Util.safeStopPropagation=function(evt){OpenLayers.Event.stop(evt,true);};OpenLayers.Util.pagePosition=function(forElement){var valueT=0,valueL=0;var element=forElement;var child=forElement;while(element){if(element==document.body){if(child&&child.style&&OpenLayers.Element.getStyle(child,'position')=='absolute'){break;}}
-valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;child=element;try{element=element.offsetParent;}catch(e){OpenLayers.Console.error(OpenLayers.i18n("pagePositionFailed",{'elemId':element.id}));break;}}
-element=forElement;while(element){valueT-=element.scrollTop||0;valueL-=element.scrollLeft||0;element=element.parentNode;}
-return[valueL,valueT];};OpenLayers.Util.isEquivalentUrl=function(url1,url2,options){options=options||{};OpenLayers.Util.applyDefaults(options,{ignoreCase:true,ignorePort80:true,ignoreHash:true});var urlObj1=OpenLayers.Util.createUrlObject(url1,options);var urlObj2=OpenLayers.Util.createUrlObject(url2,options);for(var key in urlObj1){if(options.test){alert(key+"\n1:"+urlObj1[key]+"\n2:"+urlObj2[key]);}
-var val1=urlObj1[key];var val2=urlObj2[key];switch(key){case"args":break;case"host":case"port":case"protocol":if((val1=="")||(val2=="")){break;}
-default:if((key!="args")&&(urlObj1[key]!=urlObj2[key])){return false;}
-break;}}
-for(var key in urlObj1.args){if(urlObj1.args[key]!=urlObj2.args[key]){return false;}
-delete urlObj2.args[key];}
-for(var key in urlObj2.args){return false;}
-return true;};OpenLayers.Util.createUrlObject=function(url,options){options=options||{};var urlObject={};if(options.ignoreCase){url=url.toLowerCase();}
-var a=document.createElement('a');a.href=url;urlObject.host=a.host;var port=a.port;if(port.length<=0){var newHostLength=urlObject.host.length-(port.length);urlObject.host=urlObject.host.substring(0,newHostLength);}
-urlObject.protocol=a.protocol;urlObject.port=((port=="80")&&(options.ignorePort80))?"":port;urlObject.hash=(options.ignoreHash)?"":a.hash;var queryString=a.search;if(!queryString){var qMark=url.indexOf("?");queryString=(qMark!=-1)?url.substr(qMark):"";}
-urlObject.args=OpenLayers.Util.getParameters(queryString);if(((urlObject.protocol=="file:")&&(url.indexOf("file:")!=-1))||((urlObject.protocol!="file:")&&(urlObject.host!=""))){urlObject.pathname=a.pathname;var qIndex=urlObject.pathname.indexOf("?");if(qIndex!=-1){urlObject.pathname=urlObject.pathname.substring(0,qIndex);}}else{var relStr=OpenLayers.Util.removeTail(url);var backs=0;do{var index=relStr.indexOf("../");if(index==0){backs++;relStr=relStr.substr(3);}else if(index>=0){var prevChunk=relStr.substr(0,index-1);var slash=prevChunk.indexOf("/");prevChunk=(slash!=-1)?prevChunk.substr(0,slash+1):"";var postChunk=relStr.substr(index+3);relStr=prevChunk+postChunk;}}while(index!=-1)
-var windowAnchor=document.createElement("a");var windowUrl=window.location.href;if(options.ignoreCase){windowUrl=windowUrl.toLowerCase();}
-windowAnchor.href=windowUrl;urlObject.protocol=windowAnchor.protocol;var splitter=(windowAnchor.pathname.indexOf("/")!=-1)?"/":"\\";var dirs=windowAnchor.pathname.split(splitter);dirs.pop();while((backs>0)&&(dirs.length>0)){dirs.pop();backs--;}
-relStr=dirs.join("/")+"/"+relStr;urlObject.pathname=relStr;}
-if((urlObject.protocol=="file:")||(urlObject.protocol=="")){urlObject.host="localhost";}
-return urlObject;};OpenLayers.Util.removeTail=function(url){var head=null;var qMark=url.indexOf("?");var hashMark=url.indexOf("#");if(qMark==-1){head=(hashMark!=-1)?url.substr(0,hashMark):url;}else{head=(hashMark!=-1)?url.substr(0,Math.min(qMark,hashMark)):url.substr(0,qMark);}
-return head;};OpenLayers.Util.getBrowserName=function(){var browserName="";var ua=navigator.userAgent.toLowerCase();if(ua.indexOf("opera")!=-1){browserName="opera";}else if(ua.indexOf("msie")!=-1){browserName="msie";}else if(ua.indexOf("safari")!=-1){browserName="safari";}else if(ua.indexOf("mozilla")!=-1){if(ua.indexOf("firefox")!=-1){browserName="firefox";}else{browserName="mozilla";}}
-return browserName;};OpenLayers.Util.getRenderedDimensions=function(contentHTML,size){var w=h=null;var container=document.createElement("div");container.style.overflow="";container.style.position="absolute";container.style.left="-9999px";if(size){if(size.w){w=container.style.width=size.w;}else if(size.h){h=container.style.height=size.h;}}
-var content=document.createElement("div");content.innerHTML=contentHTML;container.appendChild(content);document.body.appendChild(container);if(!w){w=parseInt(content.scrollWidth);container.style.width=w+"px";}
-if(!h){h=parseInt(content.scrollHeight);}
-container.removeChild(content);document.body.removeChild(container);return new OpenLayers.Size(w,h);};OpenLayers.Util.getScrollbarWidth=function(){var scrollbarWidth=OpenLayers.Util._scrollbarWidth;if(scrollbarWidth==null){var scr=null;var inn=null;var wNoScroll=0;var wScroll=0;scr=document.createElement('div');scr.style.position='absolute';scr.style.top='-1000px';scr.style.left='-1000px';scr.style.width='100px';scr.style.height='50px';scr.style.overflow='hidden';inn=document.createElement('div');inn.style.width='100%';inn.style.height='200px';scr.appendChild(inn);document.body.appendChild(scr);wNoScroll=inn.offsetWidth;scr.style.overflow='scroll';wScroll=inn.offsetWidth;document.body.removeChild(document.body.lastChild);OpenLayers.Util._scrollbarWidth=(wNoScroll-wScroll);scrollbarWidth=OpenLayers.Util._scrollbarWidth;}
-return scrollbarWidth;};OpenLayers.ProxyHost="";OpenLayers.nullHandler=function(request){alert(OpenLayers.i18n("unhandledRequest",{'statusText':request.statusText}));};OpenLayers.loadURL=function(uri,params,caller,onComplete,onFailure){var success=(onComplete)?OpenLayers.Function.bind(onComplete,caller):OpenLayers.nullHandler;var failure=(onFailure)?OpenLayers.Function.bind(onFailure,caller):OpenLayers.nullHandler;var request=new OpenLayers.Ajax.Request(uri,{method:'get',parameters:params,onComplete:success,onFailure:failure});return request.transport;};OpenLayers.parseXMLString=function(text){var index=text.indexOf('<');if(index>0){text=text.substring(index);}
-var ajaxResponse=OpenLayers.Util.Try(function(){var xmldom=new ActiveXObject('Microsoft.XMLDOM');xmldom.loadXML(text);return xmldom;},function(){return new DOMParser().parseFromString(text,'text/xml');},function(){var req=new XMLHttpRequest();req.open("GET","data:"+"text/xml"+";charset=utf-8,"+encodeURIComponent(text),false);if(req.overrideMimeType){req.overrideMimeType("text/xml");}
-req.send(null);return req.responseXML;});return ajaxResponse;};OpenLayers.Ajax={emptyFunction:function(){},getTransport:function(){return OpenLayers.Util.Try(function(){return new XMLHttpRequest();},function(){return new ActiveXObject('Msxml2.XMLHTTP');},function(){return new ActiveXObject('Microsoft.XMLHTTP');})||false;},activeRequestCount:0};OpenLayers.Ajax.Responders={responders:[],register:function(responderToAdd){for(var i=0;i<this.responders.length;i++){if(responderToAdd==this.responders[i]){return;}}
-this.responders.push(responderToAdd);},unregister:function(responderToRemove){OpenLayers.Util.removeItem(this.reponders,responderToRemove);},dispatch:function(callback,request,transport){var responder;for(var i=0;i<this.responders.length;i++){responder=this.responders[i];if(responder[callback]&&typeof responder[callback]=='function'){try{responder[callback].apply(responder,[request,transport]);}catch(e){}}}}};OpenLayers.Ajax.Responders.register({onCreate:function(){OpenLayers.Ajax.activeRequestCount++;},onComplete:function(){OpenLayers.Ajax.activeRequestCount--;}});OpenLayers.Ajax.Base=OpenLayers.Class({initialize:function(options){this.options={method:'post',asynchronous:true,contentType:'application/xml',parameters:''};OpenLayers.Util.extend(this.options,options||{});this.options.method=this.options.method.toLowerCase();if(typeof this.options.parameters=='string'){this.options.parameters=OpenLayers.Util.getParameters(this.options.parameters);}}});OpenLayers.Ajax.Request=OpenLayers.Class(OpenLayers.Ajax.Base,{_complete:false,initialize:function(url,options){OpenLayers.Ajax.Base.prototype.initialize.apply(this,[options]);if(OpenLayers.ProxyHost&&OpenLayers.String.startsWith(url,"http")){url=OpenLayers.ProxyHost+encodeURIComponent(url);}
-this.transport=OpenLayers.Ajax.getTransport();this.request(url);},request:function(url){this.url=url;this.method=this.options.method;var params=OpenLayers.Util.extend({},this.options.parameters);if(this.method!='get'&&this.method!='post'){params['_method']=this.method;this.method='post';}
-this.parameters=params;if(params=OpenLayers.Util.getParameterString(params)){if(this.method=='get'){this.url+=((this.url.indexOf('?')>-1)?'&':'?')+params;}else if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){params+='&_=';}}
-try{var response=new OpenLayers.Ajax.Response(this);if(this.options.onCreate){this.options.onCreate(response);}
-OpenLayers.Ajax.Responders.dispatch('onCreate',this,response);this.transport.open(this.method.toUpperCase(),this.url,this.options.asynchronous);if(this.options.asynchronous){window.setTimeout(OpenLayers.Function.bind(this.respondToReadyState,this,1),10);}
-this.transport.onreadystatechange=OpenLayers.Function.bind(this.onStateChange,this);this.setRequestHeaders();this.body=this.method=='post'?(this.options.postBody||params):null;this.transport.send(this.body);if(!this.options.asynchronous&&this.transport.overrideMimeType){this.onStateChange();}}catch(e){this.dispatchException(e);}},onStateChange:function(){var readyState=this.transport.readyState;if(readyState>1&&!((readyState==4)&&this._complete)){this.respondToReadyState(this.transport.readyState);}},setRequestHeaders:function(){var headers={'X-Requested-With':'XMLHttpRequest','Accept':'text/javascript, text/html, application/xml, text/xml, */*','OpenLayers':true};if(this.method=='post'){headers['Content-type']=this.options.contentType+
-(this.options.encoding?'; charset='+this.options.encoding:'');if(this.transport.overrideMimeType&&(navigator.userAgent.match(/Gecko\/(\d{4})/)||[0,2005])[1]<2005){headers['Connection']='close';}}
-if(typeof this.options.requestHeaders=='object'){var extras=this.options.requestHeaders;if(typeof extras.push=='function'){for(var i=0,length=extras.length;i<length;i+=2){headers[extras[i]]=extras[i+1];}}else{for(var i in extras){headers[i]=pair[i];}}}
-for(var name in headers){this.transport.setRequestHeader(name,headers[name]);}},success:function(){var status=this.getStatus();return!status||(status>=200&&status<300);},getStatus:function(){try{return this.transport.status||0;}catch(e){return 0;}},respondToReadyState:function(readyState){var state=OpenLayers.Ajax.Request.Events[readyState];var response=new OpenLayers.Ajax.Response(this);if(state=='Complete'){try{this._complete=true;(this.options['on'+response.status]||this.options['on'+(this.success()?'Success':'Failure')]||OpenLayers.Ajax.emptyFunction)(response);}catch(e){this.dispatchException(e);}
-var contentType=response.getHeader('Content-type');}
-try{(this.options['on'+state]||OpenLayers.Ajax.emptyFunction)(response);OpenLayers.Ajax.Responders.dispatch('on'+state,this,response);}catch(e){this.dispatchException(e);}
-if(state=='Complete'){this.transport.onreadystatechange=OpenLayers.Ajax.emptyFunction;}},getHeader:function(name){try{return this.transport.getResponseHeader(name);}catch(e){return null;}},dispatchException:function(exception){var handler=this.options.onException;if(handler){handler(this,exception);OpenLayers.Ajax.Responders.dispatch('onException',this,exception);}else{var listener=false;var responders=OpenLayers.Ajax.Responders.responders;for(var i=0;i<responders.length;i++){if(responders[i].onException){listener=true;break;}}
-if(listener){OpenLayers.Ajax.Responders.dispatch('onException',this,exception);}else{throw exception;}}}});OpenLayers.Ajax.Request.Events=['Uninitialized','Loading','Loaded','Interactive','Complete'];OpenLayers.Ajax.Response=OpenLayers.Class({status:0,statusText:'',initialize:function(request){this.request=request;var transport=this.transport=request.transport,readyState=this.readyState=transport.readyState;if((readyState>2&&!(!!(window.attachEvent&&!window.opera)))||readyState==4){this.status=this.getStatus();this.statusText=this.getStatusText();this.responseText=transport.responseText==null?'':String(transport.responseText);}
-if(readyState==4){var xml=transport.responseXML;this.responseXML=xml===undefined?null:xml;}},getStatus:OpenLayers.Ajax.Request.prototype.getStatus,getStatusText:function(){try{return this.transport.statusText||'';}catch(e){return'';}},getHeader:OpenLayers.Ajax.Request.prototype.getHeader,getResponseHeader:function(name){return this.transport.getResponseHeader(name);}});OpenLayers.Ajax.getElementsByTagNameNS=function(parentnode,nsuri,nsprefix,tagname){var elem=null;if(parentnode.getElementsByTagNameNS){elem=parentnode.getElementsByTagNameNS(nsuri,tagname);}else{elem=parentnode.getElementsByTagName(nsprefix+':'+tagname);}
-return elem;};OpenLayers.Ajax.serializeXMLToString=function(xmldom){var serializer=new XMLSerializer();var data=serializer.serializeToString(xmldom);return data;};OpenLayers.Console={log:function(){},debug:function(){},info:function(){},warn:function(){},error:function(){},assert:function(){},dir:function(){},dirxml:function(){},trace:function(){},group:function(){},groupEnd:function(){},time:function(){},timeEnd:function(){},profile:function(){},profileEnd:function(){},count:function(){},CLASS_NAME:"OpenLayers.Console"};(function(){if(window.console){var scripts=document.getElementsByTagName("script");for(var i=0;i<scripts.length;++i){if(scripts[i].src.indexOf("firebug.js")!=-1){OpenLayers.Util.extend(OpenLayers.Console,console);break;}}}})();OpenLayers.Size=OpenLayers.Class({w:0.0,h:0.0,initialize:function(w,h){this.w=parseFloat(w);this.h=parseFloat(h);},toString:function(){return("w="+this.w+",h="+this.h);},clone:function(){return new OpenLayers.Size(this.w,this.h);},equals:function(sz){var equals=false;if(sz!=null){equals=((this.w==sz.w&&this.h==sz.h)||(isNaN(this.w)&&isNaN(this.h)&&isNaN(sz.w)&&isNaN(sz.h)));}
-return equals;},CLASS_NAME:"OpenLayers.Size"});OpenLayers.Bounds=OpenLayers.Class({left:null,bottom:null,right:null,top:null,initialize:function(left,bottom,right,top){if(left!=null){this.left=parseFloat(left);}
-if(bottom!=null){this.bottom=parseFloat(bottom);}
-if(right!=null){this.right=parseFloat(right);}
-if(top!=null){this.top=parseFloat(top);}},clone:function(){return new OpenLayers.Bounds(this.left,this.bottom,this.right,this.top);},equals:function(bounds){var equals=false;if(bounds!=null){equals=((this.left==bounds.left)&&(this.right==bounds.right)&&(this.top==bounds.top)&&(this.bottom==bounds.bottom));}
-return equals;},toString:function(){return("left-bottom=("+this.left+","+this.bottom+")"
-+" right-top=("+this.right+","+this.top+")");},toArray:function(){return[this.left,this.bottom,this.right,this.top];},toBBOX:function(decimal){if(decimal==null){decimal=6;}
-var mult=Math.pow(10,decimal);var bbox=Math.round(this.left*mult)/mult+","+
-Math.round(this.bottom*mult)/mult+","+
-Math.round(this.right*mult)/mult+","+
-Math.round(this.top*mult)/mult;return bbox;},toGeometry:function(){return new OpenLayers.Geometry.Polygon([new OpenLayers.Geometry.LinearRing([new OpenLayers.Geometry.Point(this.left,this.bottom),new OpenLayers.Geometry.Point(this.right,this.bottom),new OpenLayers.Geometry.Point(this.right,this.top),new OpenLayers.Geometry.Point(this.left,this.top)])]);},getWidth:function(){return(this.right-this.left);},getHeight:function(){return(this.top-this.bottom);},getSize:function(){return new OpenLayers.Size(this.getWidth(),this.getHeight());},getCenterPixel:function(){return new OpenLayers.Pixel((this.left+this.right)/2,(this.bottom+this.top)/2);},getCenterLonLat:function(){return new OpenLayers.LonLat((this.left+this.right)/2,(this.bottom+this.top)/2);},add:function(x,y){if((x==null)||(y==null)){var msg=OpenLayers.i18n("boundsAddError");OpenLayers.Console.error(msg);return null;}
-return new OpenLayers.Bounds(this.left+x,this.bottom+y,this.right+x,this.top+y);},extend:function(object){var bounds=null;if(object){switch(object.CLASS_NAME){case"OpenLayers.LonLat":bounds=new OpenLayers.Bounds(object.lon,object.lat,object.lon,object.lat);break;case"OpenLayers.Geometry.Point":bounds=new OpenLayers.Bounds(object.x,object.y,object.x,object.y);break;case"OpenLayers.Bounds":bounds=object;break;}
-if(bounds){if((this.left==null)||(bounds.left<this.left)){this.left=bounds.left;}
-if((this.bottom==null)||(bounds.bottom<this.bottom)){this.bottom=bounds.bottom;}
-if((this.right==null)||(bounds.right>this.right)){this.right=bounds.right;}
-if((this.top==null)||(bounds.top>this.top)){this.top=bounds.top;}}}},containsLonLat:function(ll,inclusive){return this.contains(ll.lon,ll.lat,inclusive);},containsPixel:function(px,inclusive){return this.contains(px.x,px.y,inclusive);},contains:function(x,y,inclusive){if(inclusive==null){inclusive=true;}
-var contains=false;if(inclusive){contains=((x>=this.left)&&(x<=this.right)&&(y>=this.bottom)&&(y<=this.top));}else{contains=((x>this.left)&&(x<this.right)&&(y>this.bottom)&&(y<this.top));}
-return contains;},intersectsBounds:function(bounds,inclusive){if(inclusive==null){inclusive=true;}
-var inBottom=(bounds.bottom==this.bottom&&bounds.top==this.top)?true:(((bounds.bottom>this.bottom)&&(bounds.bottom<this.top))||((this.bottom>bounds.bottom)&&(this.bottom<bounds.top)));var inTop=(bounds.bottom==this.bottom&&bounds.top==this.top)?true:(((bounds.top>this.bottom)&&(bounds.top<this.top))||((this.top>bounds.bottom)&&(this.top<bounds.top)));var inRight=(bounds.right==this.right&&bounds.left==this.left)?true:(((bounds.right>this.left)&&(bounds.right<this.right))||((this.right>bounds.left)&&(this.right<bounds.right)));var inLeft=(bounds.right==this.right&&bounds.left==this.left)?true:(((bounds.left>this.left)&&(bounds.left<this.right))||((this.left>bounds.left)&&(this.left<bounds.right)));return(this.containsBounds(bounds,true,inclusive)||bounds.containsBounds(this,true,inclusive)||((inTop||inBottom)&&(inLeft||inRight)));},containsBounds:function(bounds,partial,inclusive){if(partial==null){partial=false;}
-if(inclusive==null){inclusive=true;}
-var inLeft;var inTop;var inRight;var inBottom;if(inclusive){inLeft=(bounds.left>=this.left)&&(bounds.left<=this.right);inTop=(bounds.top>=this.bottom)&&(bounds.top<=this.top);inRight=(bounds.right>=this.left)&&(bounds.right<=this.right);inBottom=(bounds.bottom>=this.bottom)&&(bounds.bottom<=this.top);}else{inLeft=(bounds.left>this.left)&&(bounds.left<this.right);inTop=(bounds.top>this.bottom)&&(bounds.top<this.top);inRight=(bounds.right>this.left)&&(bounds.right<this.right);inBottom=(bounds.bottom>this.bottom)&&(bounds.bottom<this.top);}
-return(partial)?(inTop||inBottom)&&(inLeft||inRight):(inTop&&inLeft&&inBottom&&inRight);},determineQuadrant:function(lonlat){var quadrant="";var center=this.getCenterLonLat();quadrant+=(lonlat.lat<center.lat)?"b":"t";quadrant+=(lonlat.lon<center.lon)?"l":"r";return quadrant;},transform:function(source,dest){var ll=OpenLayers.Projection.transform({'x':this.left,'y':this.bottom},source,dest);var lr=OpenLayers.Projection.transform({'x':this.right,'y':this.bottom},source,dest);var ul=OpenLayers.Projection.transform({'x':this.left,'y':this.top},source,dest);var ur=OpenLayers.Projection.transform({'x':this.right,'y':this.top},source,dest);this.left=Math.min(ll.x,ul.x);this.bottom=Math.min(ll.y,lr.y);this.right=Math.max(lr.x,ur.x);this.top=Math.max(ul.y,ur.y);return this;},wrapDateLine:function(maxExtent,options){options=options||{};var leftTolerance=options.leftTolerance||0;var rightTolerance=options.rightTolerance||0;var newBounds=this.clone();if(maxExtent){while(newBounds.left<maxExtent.left&&(newBounds.right-rightTolerance)<=maxExtent.left){newBounds=newBounds.add(maxExtent.getWidth(),0);}
-while((newBounds.left+leftTolerance)>=maxExtent.right&&newBounds.right>maxExtent.right){newBounds=newBounds.add(-maxExtent.getWidth(),0);}}
-return newBounds;},CLASS_NAME:"OpenLayers.Bounds"});OpenLayers.Bounds.fromString=function(str){var bounds=str.split(",");return OpenLayers.Bounds.fromArray(bounds);};OpenLayers.Bounds.fromArray=function(bbox){return new OpenLayers.Bounds(parseFloat(bbox[0]),parseFloat(bbox[1]),parseFloat(bbox[2]),parseFloat(bbox[3]));};OpenLayers.Bounds.fromSize=function(size){return new OpenLayers.Bounds(0,size.h,size.w,0);};OpenLayers.Bounds.oppositeQuadrant=function(quadrant){var opp="";opp+=(quadrant.charAt(0)=='t')?'b':'t';opp+=(quadrant.charAt(1)=='l')?'r':'l';return opp;};OpenLayers.Element={visible:function(element){return OpenLayers.Util.getElement(element).style.display!='none';},toggle:function(){for(var i=0;i<arguments.length;i++){var element=OpenLayers.Util.getElement(arguments[i]);var display=OpenLayers.Element.visible(element)?'hide':'show';OpenLayers.Element[display](element);}},hide:function(){for(var i=0;i<arguments.length;i++){var element=OpenLayers.Util.getElement(arguments[i]);element.style.display='none';}},show:function(){for(var i=0;i<arguments.length;i++){var element=OpenLayers.Util.getElement(arguments[i]);element.style.display='';}},remove:function(element){element=OpenLayers.Util.getElement(element);element.parentNode.removeChild(element);},getHeight:function(element){element=OpenLayers.Util.getElement(element);return element.offsetHeight;},getDimensions:function(element){element=OpenLayers.Util.getElement(element);if(OpenLayers.Element.getStyle(element,'display')!='none'){return{width:element.offsetWidth,height:element.offsetHeight};}
-var els=element.style;var originalVisibility=els.visibility;var originalPosition=els.position;els.visibility='hidden';els.position='absolute';els.display='';var originalWidth=element.clientWidth;var originalHeight=element.clientHeight;els.display='none';els.position=originalPosition;els.visibility=originalVisibility;return{width:originalWidth,height:originalHeight};},getStyle:function(element,style){element=OpenLayers.Util.getElement(element);var value=element.style[OpenLayers.String.camelize(style)];if(!value){if(document.defaultView&&document.defaultView.getComputedStyle){var css=document.defaultView.getComputedStyle(element,null);value=css?css.getPropertyValue(style):null;}else if(element.currentStyle){value=element.currentStyle[OpenLayers.String.camelize(style)];}}
-var positions=['left','top','right','bottom'];if(window.opera&&(OpenLayers.Util.indexOf(positions,style)!=-1)&&(OpenLayers.Element.getStyle(element,'position')=='static')){value='auto';}
-return value=='auto'?null:value;}};OpenLayers.LonLat=OpenLayers.Class({lon:0.0,lat:0.0,initialize:function(lon,lat){this.lon=parseFloat(lon);this.lat=parseFloat(lat);},toString:function(){return("lon="+this.lon+",lat="+this.lat);},toShortString:function(){return(this.lon+", "+this.lat);},clone:function(){return new OpenLayers.LonLat(this.lon,this.lat);},add:function(lon,lat){if((lon==null)||(lat==null)){var msg=OpenLayers.i18n("lonlatAddError");OpenLayers.Console.error(msg);return null;}
-return new OpenLayers.LonLat(this.lon+lon,this.lat+lat);},equals:function(ll){var equals=false;if(ll!=null){equals=((this.lon==ll.lon&&this.lat==ll.lat)||(isNaN(this.lon)&&isNaN(this.lat)&&isNaN(ll.lon)&&isNaN(ll.lat)));}
-return equals;},transform:function(source,dest){var point=OpenLayers.Projection.transform({'x':this.lon,'y':this.lat},source,dest);this.lon=point.x;this.lat=point.y;return this;},wrapDateLine:function(maxExtent){var newLonLat=this.clone();if(maxExtent){while(newLonLat.lon<maxExtent.left){newLonLat.lon+=maxExtent.getWidth();}
-while(newLonLat.lon>maxExtent.right){newLonLat.lon-=maxExtent.getWidth();}}
-return newLonLat;},CLASS_NAME:"OpenLayers.LonLat"});OpenLayers.LonLat.fromString=function(str){var pair=str.split(",");return new OpenLayers.LonLat(parseFloat(pair[0]),parseFloat(pair[1]));};OpenLayers.Pixel=OpenLayers.Class({x:0.0,y:0.0,initialize:function(x,y){this.x=parseFloat(x);this.y=parseFloat(y);},toString:function(){return("x="+this.x+",y="+this.y);},clone:function(){return new OpenLayers.Pixel(this.x,this.y);},equals:function(px){var equals=false;if(px!=null){equals=((this.x==px.x&&this.y==px.y)||(isNaN(this.x)&&isNaN(this.y)&&isNaN(px.x)&&isNaN(px.y)));}
-return equals;},add:function(x,y){if((x==null)||(y==null)){var msg=OpenLayers.i18n("pixelAddError");OpenLayers.Console.error(msg);return null;}
-return new OpenLayers.Pixel(this.x+x,this.y+y);},offset:function(px){var newPx=this.clone();if(px){newPx=this.add(px.x,px.y);}
-return newPx;},CLASS_NAME:"OpenLayers.Pixel"});OpenLayers.Control=OpenLayers.Class({id:null,map:null,div:null,type:null,allowSelection:false,displayClass:"",title:"",active:null,handler:null,eventListeners:null,events:null,EVENT_TYPES:["activate","deactivate"],initialize:function(options){this.displayClass=this.CLASS_NAME.replace("OpenLayers.","ol").replace(/\./g,"");OpenLayers.Util.extend(this,options);this.events=new OpenLayers.Events(this,null,this.EVENT_TYPES);if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}
-this.id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");},destroy:function(){if(this.events){if(this.eventListeners){this.events.un(this.eventListeners);}
-this.events.destroy();this.events=null;}
-this.eventListeners=null;if(this.handler){this.handler.destroy();this.handler=null;}
-if(this.handlers){for(var key in this.handlers){if(this.handlers.hasOwnProperty(key)&&typeof this.handlers[key].destroy=="function"){this.handlers[key].destroy();}}
-this.handlers=null;}
-if(this.map){this.map.removeControl(this);this.map=null;}},setMap:function(map){this.map=map;if(this.handler){this.handler.setMap(map);}},draw:function(px){if(this.div==null){this.div=OpenLayers.Util.createDiv(this.id);this.div.className=this.displayClass;if(!this.allowSelection){this.div.className+=" olControlNoSelect";this.div.setAttribute("unselectable","on",0);this.div.onselectstart=function(){return(false);};}
-if(this.title!=""){this.div.title=this.title;}}
-if(px!=null){this.position=px.clone();}
-this.moveTo(this.position);return this.div;},moveTo:function(px){if((px!=null)&&(this.div!=null)){this.div.style.left=px.x+"px";this.div.style.top=px.y+"px";}},activate:function(){if(this.active){return false;}
-if(this.handler){this.handler.activate();}
-this.active=true;this.events.triggerEvent("activate");return true;},deactivate:function(){if(this.active){if(this.handler){this.handler.deactivate();}
-this.active=false;this.events.triggerEvent("deactivate");return true;}
-return false;},CLASS_NAME:"OpenLayers.Control"});OpenLayers.Control.TYPE_BUTTON=1;OpenLayers.Control.TYPE_TOGGLE=2;OpenLayers.Control.TYPE_TOOL=3;OpenLayers.Icon=OpenLayers.Class({url:null,size:null,offset:null,calculateOffset:null,imageDiv:null,px:null,initialize:function(url,size,offset,calculateOffset){this.url=url;this.size=(size)?size:new OpenLayers.Size(20,20);this.offset=offset?offset:new OpenLayers.Pixel(-(this.size.w/2),-(this.size.h/2));this.calculateOffset=calculateOffset;var id=OpenLayers.Util.createUniqueID("OL_Icon_");this.imageDiv=OpenLayers.Util.createAlphaImageDiv(id);},destroy:function(){OpenLayers.Event.stopObservingElement(this.imageDiv.firstChild);this.imageDiv.innerHTML="";this.imageDiv=null;},clone:function(){return new OpenLayers.Icon(this.url,this.size,this.offset,this.calculateOffset);},setSize:function(size){if(size!=null){this.size=size;}
-this.draw();},setUrl:function(url){if(url!=null){this.url=url;}
-this.draw();},draw:function(px){OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv,null,null,this.size,this.url,"absolute");this.moveTo(px);return this.imageDiv;},setOpacity:function(opacity){OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv,null,null,null,null,null,null,null,opacity);},moveTo:function(px){if(px!=null){this.px=px;}
-if(this.imageDiv!=null){if(this.px==null){this.display(false);}else{if(this.calculateOffset){this.offset=this.calculateOffset(this.size);}
-var offsetPx=this.px.offset(this.offset);OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv,null,offsetPx);}}},display:function(display){this.imageDiv.style.display=(display)?"":"none";},CLASS_NAME:"OpenLayers.Icon"});OpenLayers.Lang={code:null,defaultCode:"en",getCode:function(){if(!OpenLayers.Lang.code){OpenLayers.Lang.setCode();}
-return OpenLayers.Lang.code;},setCode:function(code){var lang;if(!code){code=(OpenLayers.Util.getBrowserName()=="msie")?navigator.userLanguage:navigator.language;}
-var parts=code.split('-');parts[0]=parts[0].toLowerCase();if(typeof OpenLayers.Lang[parts[0]]=="object"){lang=parts[0];}
-if(parts[1]){var testLang=parts[0]+'-'+parts[1].toUpperCase();if(typeof OpenLayers.Lang[testLang]=="object"){lang=testLang;}}
-if(!lang){OpenLayers.Console.warn('Failed to find OpenLayers.Lang.'+parts.join("-")+' dictionary, falling back to default language');lang=OpenLayers.Lang.defaultCode;}
-OpenLayers.Lang.code=lang;},translate:function(key,context){var dictionary=OpenLayers.Lang[OpenLayers.Lang.getCode()];var message=dictionary[key];if(!message){message=key;}
-if(context){message=OpenLayers.String.format(message,context);}
-return message;}};OpenLayers.i18n=OpenLayers.Lang.translate;OpenLayers.Tween=OpenLayers.Class({INTERVAL:10,easing:null,begin:null,finish:null,duration:null,callbacks:null,time:null,interval:null,playing:false,initialize:function(easing){this.easing=(easing)?easing:OpenLayers.Easing.Expo.easeOut;},start:function(begin,finish,duration,options){this.playing=true;this.begin=begin;this.finish=finish;this.duration=duration;this.callbacks=options.callbacks;this.time=0;if(this.interval){window.clearInterval(this.interval);this.interval=null;}
-if(this.callbacks&&this.callbacks.start){this.callbacks.start.call(this,this.begin);}
-this.interval=window.setInterval(OpenLayers.Function.bind(this.play,this),this.INTERVAL);},stop:function(){if(!this.playing){return;}
-if(this.callbacks&&this.callbacks.done){this.callbacks.done.call(this,this.finish);}
-window.clearInterval(this.interval);this.interval=null;this.playing=false;},play:function(){var value={};for(var i in this.begin){var b=this.begin[i];var f=this.finish[i];if(b==null||f==null||isNaN(b)||isNaN(f)){OpenLayers.Console.error('invalid value for Tween');}
-var c=f-b;value[i]=this.easing.apply(this,[this.time,b,c,this.duration]);}
-this.time++;if(this.callbacks&&this.callbacks.eachStep){this.callbacks.eachStep.call(this,value);}
-if(this.time>this.duration){if(this.callbacks&&this.callbacks.done){this.callbacks.done.call(this,this.finish);this.playing=false;}
-window.clearInterval(this.interval);this.interval=null;}},CLASS_NAME:"OpenLayers.Tween"});OpenLayers.Easing={CLASS_NAME:"OpenLayers.Easing"};OpenLayers.Easing.Linear={easeIn:function(t,b,c,d){return c*t/d+b;},easeOut:function(t,b,c,d){return c*t/d+b;},easeInOut:function(t,b,c,d){return c*t/d+b;},CLASS_NAME:"OpenLayers.Easing.Linear"};OpenLayers.Easing.Expo={easeIn:function(t,b,c,d){return(t==0)?b:c*Math.pow(2,10*(t/d-1))+b;},easeOut:function(t,b,c,d){return(t==d)?b+c:c*(-Math.pow(2,-10*t/d)+1)+b;},easeInOut:function(t,b,c,d){if(t==0)return b;if(t==d)return b+c;if((t/=d/2)<1)return c/2*Math.pow(2,10*(t-1))+b;return c/2*(-Math.pow(2,-10*--t)+2)+b;},CLASS_NAME:"OpenLayers.Easing.Expo"};OpenLayers.Easing.Quad={easeIn:function(t,b,c,d){return c*(t/=d)*t+b;},easeOut:function(t,b,c,d){return-c*(t/=d)*(t-2)+b;},easeInOut:function(t,b,c,d){if((t/=d/2)<1)return c/2*t*t+b;return-c/2*((--t)*(t-2)-1)+b;},CLASS_NAME:"OpenLayers.Easing.Quad"};OpenLayers.Control.ArgParser=OpenLayers.Class(OpenLayers.Control,{center:null,zoom:null,layers:null,displayProjection:null,initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,arguments);},setMap:function(map){OpenLayers.Control.prototype.setMap.apply(this,arguments);for(var i=0;i<this.map.controls.length;i++){var control=this.map.controls[i];if((control!=this)&&(control.CLASS_NAME=="OpenLayers.Control.ArgParser")){if(control.displayProjection!=this.displayProjection){this.displayProjection=control.displayProjection;}
-break;}}
-if(i==this.map.controls.length){var args=OpenLayers.Util.getParameters();if(args.layers){this.layers=args.layers;this.map.events.register('addlayer',this,this.configureLayers);this.configureLayers();}
-if(args.lat&&args.lon){this.center=new OpenLayers.LonLat(parseFloat(args.lon),parseFloat(args.lat));if(args.zoom){this.zoom=parseInt(args.zoom);}
-this.map.events.register('changebaselayer',this,this.setCenter);this.setCenter();}}},setCenter:function(){if(this.map.baseLayer){this.map.events.unregister('changebaselayer',this,this.setCenter);if(this.displayProjection){this.center.transform(this.displayProjection,this.map.getProjectionObject());}
-this.map.setCenter(this.center,this.zoom);}},configureLayers:function(){if(this.layers.length==this.map.layers.length){this.map.events.unregister('addlayer',this,this.configureLayers);for(var i=0;i<this.layers.length;i++){var layer=this.map.layers[i];var c=this.layers.charAt(i);if(c=="B"){this.map.setBaseLayer(layer);}else if((c=="T")||(c=="F")){layer.setVisibility(c=="T");}}}},CLASS_NAME:"OpenLayers.Control.ArgParser"});OpenLayers.Control.MousePosition=OpenLayers.Class(OpenLayers.Control,{element:null,prefix:'',separator:', ',suffix:'',numdigits:5,granularity:10,lastXy:null,displayProjection:null,initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,arguments);},destroy:function(){if(this.map){this.map.events.unregister('mousemove',this,this.redraw);}
-OpenLayers.Control.prototype.destroy.apply(this,arguments);},draw:function(){OpenLayers.Control.prototype.draw.apply(this,arguments);if(!this.element){this.div.left="";this.div.top="";this.element=this.div;}
-this.redraw();return this.div;},redraw:function(evt){var lonLat;if(evt==null){lonLat=new OpenLayers.LonLat(0,0);}else{if(this.lastXy==null||Math.abs(evt.xy.x-this.lastXy.x)>this.granularity||Math.abs(evt.xy.y-this.lastXy.y)>this.granularity)
-{this.lastXy=evt.xy;return;}
-lonLat=this.map.getLonLatFromPixel(evt.xy);if(!lonLat){return;}
-if(this.displayProjection){lonLat.transform(this.map.getProjectionObject(),this.displayProjection);}
-this.lastXy=evt.xy;}
-var newHtml=this.formatOutput(lonLat);if(newHtml!=this.element.innerHTML){this.element.innerHTML=newHtml;}},formatOutput:function(lonLat){var digits=parseInt(this.numdigits);var newHtml=this.prefix+
-lonLat.lon.toFixed(digits)+
-this.separator+
-lonLat.lat.toFixed(digits)+
-this.suffix;return newHtml;},setMap:function(){OpenLayers.Control.prototype.setMap.apply(this,arguments);this.map.events.register('mousemove',this,this.redraw);},CLASS_NAME:"OpenLayers.Control.MousePosition"});OpenLayers.Control.PanZoom=OpenLayers.Class(OpenLayers.Control,{slideFactor:50,buttons:null,position:null,initialize:function(options){this.position=new OpenLayers.Pixel(OpenLayers.Control.PanZoom.X,OpenLayers.Control.PanZoom.Y);OpenLayers.Control.prototype.initialize.apply(this,arguments);},destroy:function(){OpenLayers.Control.prototype.destroy.apply(this,arguments);while(this.buttons.length){var btn=this.buttons.shift();btn.map=null;OpenLayers.Event.stopObservingElement(btn);}
-this.buttons=null;this.position=null;},draw:function(px){OpenLayers.Control.prototype.draw.apply(this,arguments);px=this.position;this.buttons=[];var sz=new OpenLayers.Size(18,18);var centered=new OpenLayers.Pixel(px.x+sz.w/2,px.y);this._addButton("panup","north-mini.png",centered,sz);px.y=centered.y+sz.h;this._addButton("panleft","west-mini.png",px,sz);this._addButton("panright","east-mini.png",px.add(sz.w,0),sz);this._addButton("pandown","south-mini.png",centered.add(0,sz.h*2),sz);this._addButton("zoomin","zoom-plus-mini.png",centered.add(0,sz.h*3+5),sz);this._addButton("zoomworld","zoom-world-mini.png",centered.add(0,sz.h*4+5),sz);this._addButton("zoomout","zoom-minus-mini.png",centered.add(0,sz.h*5+5),sz);return this.div;},_addButton:function(id,img,xy,sz){var imgLocation=OpenLayers.Util.getImagesLocation()+img;var btn=OpenLayers.Util.createAlphaImageDiv("OpenLayers_Control_PanZoom_"+id,xy,sz,imgLocation,"absolute");this.div.appendChild(btn);OpenLayers.Event.observe(btn,"mousedown",OpenLayers.Function.bindAsEventListener(this.buttonDown,btn));OpenLayers.Event.observe(btn,"dblclick",OpenLayers.Function.bindAsEventListener(this.doubleClick,btn));OpenLayers.Event.observe(btn,"click",OpenLayers.Function.bindAsEventListener(this.doubleClick,btn));btn.action=id;btn.map=this.map;btn.slideFactor=this.slideFactor;this.buttons.push(btn);return btn;},doubleClick:function(evt){OpenLayers.Event.stop(evt);return false;},buttonDown:function(evt){if(!OpenLayers.Event.isLeftClick(evt)){return;}
-switch(this.action){case"panup":this.map.pan(0,-this.slideFactor);break;case"pandown":this.map.pan(0,this.slideFactor);break;case"panleft":this.map.pan(-this.slideFactor,0);break;case"panright":this.map.pan(this.slideFactor,0);break;case"zoomin":this.map.zoomIn();break;case"zoomout":this.map.zoomOut();break;case"zoomworld":this.map.zoomToMaxExtent();break;}
-OpenLayers.Event.stop(evt);},CLASS_NAME:"OpenLayers.Control.PanZoom"});OpenLayers.Control.PanZoom.X=4;OpenLayers.Control.PanZoom.Y=4;OpenLayers.Control.ScaleLine=OpenLayers.Class(OpenLayers.Control,{maxWidth:100,topOutUnits:"km",topInUnits:"m",bottomOutUnits:"mi",bottomInUnits:"ft",eTop:null,eBottom:null,initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,[options]);},draw:function(){OpenLayers.Control.prototype.draw.apply(this,arguments);if(!this.eTop){this.div.style.display="block";this.div.style.position="absolute";this.eTop=document.createElement("div");this.eTop.className=this.displayClass+"Top";var theLen=this.topInUnits.length;this.div.appendChild(this.eTop);if((this.topOutUnits=="")||(this.topInUnits=="")){this.eTop.style.visibility="hidden";}else{this.eTop.style.visibility="visible";}
-this.eBottom=document.createElement("div");this.eBottom.className=this.displayClass+"Bottom";this.div.appendChild(this.eBottom);if((this.bottomOutUnits=="")||(this.bottomInUnits=="")){this.eBottom.style.visibility="hidden";}else{this.eBottom.style.visibility="visible";}}
-this.map.events.register('moveend',this,this.update);this.update();return this.div;},getBarLen:function(maxLen){var digits=parseInt(Math.log(maxLen)/Math.log(10));var pow10=Math.pow(10,digits);var firstChar=parseInt(maxLen/pow10);var barLen;if(firstChar>5){barLen=5;}else if(firstChar>2){barLen=2;}else{barLen=1;}
-return barLen*pow10;},update:function(){var res=this.map.getResolution();if(!res){return;}
-var curMapUnits=this.map.units;var inches=OpenLayers.INCHES_PER_UNIT;var maxSizeData=this.maxWidth*res*inches[curMapUnits];var topUnits;var bottomUnits;if(maxSizeData>100000){topUnits=this.topOutUnits;bottomUnits=this.bottomOutUnits;}else{topUnits=this.topInUnits;bottomUnits=this.bottomInUnits;}
-var topMax=maxSizeData/inches[topUnits];var bottomMax=maxSizeData/inches[bottomUnits];var topRounded=this.getBarLen(topMax);var bottomRounded=this.getBarLen(bottomMax);topMax=topRounded/inches[curMapUnits]*inches[topUnits];bottomMax=bottomRounded/inches[curMapUnits]*inches[bottomUnits];var topPx=topMax/res;var bottomPx=bottomMax/res;this.eTop.style.width=Math.round(topPx)+"px";this.eBottom.style.width=Math.round(bottomPx)+"px";this.eTop.innerHTML=topRounded+" "+topUnits;this.eBottom.innerHTML=bottomRounded+" "+bottomUnits;},CLASS_NAME:"OpenLayers.Control.ScaleLine"});OpenLayers.Event={observers:false,KEY_BACKSPACE:8,KEY_TAB:9,KEY_RETURN:13,KEY_ESC:27,KEY_LEFT:37,KEY_UP:38,KEY_RIGHT:39,KEY_DOWN:40,KEY_DELETE:46,element:function(event){return event.target||event.srcElement;},isLeftClick:function(event){return(((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));},stop:function(event,allowDefault){if(!allowDefault){if(event.preventDefault){event.preventDefault();}else{event.returnValue=false;}}
-if(event.stopPropagation){event.stopPropagation();}else{event.cancelBubble=true;}},findElement:function(event,tagName){var element=OpenLayers.Event.element(event);while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase()))){element=element.parentNode;}
-return element;},observe:function(elementParam,name,observer,useCapture){var element=OpenLayers.Util.getElement(elementParam);useCapture=useCapture||false;if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent)){name='keydown';}
-if(!this.observers){this.observers={};}
-if(!element._eventCacheID){var idPrefix="eventCacheID_";if(element.id){idPrefix=element.id+"_"+idPrefix;}
-element._eventCacheID=OpenLayers.Util.createUniqueID(idPrefix);}
-var cacheID=element._eventCacheID;if(!this.observers[cacheID]){this.observers[cacheID]=[];}
-this.observers[cacheID].push({'element':element,'name':name,'observer':observer,'useCapture':useCapture});if(element.addEventListener){element.addEventListener(name,observer,useCapture);}else if(element.attachEvent){element.attachEvent('on'+name,observer);}},stopObservingElement:function(elementParam){var element=OpenLayers.Util.getElement(elementParam);var cacheID=element._eventCacheID;this._removeElementObservers(OpenLayers.Event.observers[cacheID]);},_removeElementObservers:function(elementObservers){if(elementObservers){for(var i=elementObservers.length-1;i>=0;i--){var entry=elementObservers[i];var args=new Array(entry.element,entry.name,entry.observer,entry.useCapture);var removed=OpenLayers.Event.stopObserving.apply(this,args);}}},stopObserving:function(elementParam,name,observer,useCapture){useCapture=useCapture||false;var element=OpenLayers.Util.getElement(elementParam);var cacheID=element._eventCacheID;if(name=='keypress'){if(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent){name='keydown';}}
-var foundEntry=false;var elementObservers=OpenLayers.Event.observers[cacheID];if(elementObservers){var i=0;while(!foundEntry&&i<elementObservers.length){var cacheEntry=elementObservers[i];if((cacheEntry.name==name)&&(cacheEntry.observer==observer)&&(cacheEntry.useCapture==useCapture)){elementObservers.splice(i,1);if(elementObservers.length==0){delete OpenLayers.Event.observers[cacheID];}
-foundEntry=true;break;}
-i++;}}
-if(foundEntry){if(element.removeEventListener){element.removeEventListener(name,observer,useCapture);}else if(element&&element.detachEvent){element.detachEvent('on'+name,observer);}}
-return foundEntry;},unloadCache:function(){if(OpenLayers.Event&&OpenLayers.Event.observers){for(var cacheID in OpenLayers.Event.observers){var elementObservers=OpenLayers.Event.observers[cacheID];OpenLayers.Event._removeElementObservers.apply(this,[elementObservers]);}
-OpenLayers.Event.observers=false;}},CLASS_NAME:"OpenLayers.Event"};OpenLayers.Event.observe(window,'unload',OpenLayers.Event.unloadCache,false);if(window.Event){OpenLayers.Util.applyDefaults(window.Event,OpenLayers.Event);}else{var Event=OpenLayers.Event;}
-OpenLayers.Events=OpenLayers.Class({BROWSER_EVENTS:["mouseover","mouseout","mousedown","mouseup","mousemove","click","dblclick","resize","focus","blur"],listeners:null,object:null,element:null,eventTypes:null,eventHandler:null,fallThrough:null,initialize:function(object,element,eventTypes,fallThrough){this.object=object;this.element=element;this.eventTypes=eventTypes;this.fallThrough=fallThrough;this.listeners={};this.eventHandler=OpenLayers.Function.bindAsEventListener(this.handleBrowserEvent,this);if(this.eventTypes!=null){for(var i=0;i<this.eventTypes.length;i++){this.addEventType(this.eventTypes[i]);}}
-if(this.element!=null){this.attachToElement(element);}},destroy:function(){if(this.element){OpenLayers.Event.stopObservingElement(this.element);}
-this.element=null;this.listeners=null;this.object=null;this.eventTypes=null;this.fallThrough=null;this.eventHandler=null;},addEventType:function(eventName){if(!this.listeners[eventName]){this.listeners[eventName]=[];}},attachToElement:function(element){for(var i=0;i<this.BROWSER_EVENTS.length;i++){var eventType=this.BROWSER_EVENTS[i];this.addEventType(eventType);OpenLayers.Event.observe(element,eventType,this.eventHandler);}
-OpenLayers.Event.observe(element,"dragstart",OpenLayers.Event.stop);},on:function(object){for(var type in object){if(type!="scope"){this.register(type,object.scope,object[type]);}}},register:function(type,obj,func){if(func!=null&&((this.eventTypes&&OpenLayers.Util.indexOf(this.eventTypes,type)!=-1)||OpenLayers.Util.indexOf(this.BROWSER_EVENTS,type)!=-1)){if(obj==null){obj=this.object;}
-var listeners=this.listeners[type];if(listeners!=null){listeners.push({obj:obj,func:func});}}},registerPriority:function(type,obj,func){if(func!=null){if(obj==null){obj=this.object;}
-var listeners=this.listeners[type];if(listeners!=null){listeners.unshift({obj:obj,func:func});}}},un:function(object){for(var type in object){if(type!="scope"){this.unregister(type,object.scope,object[type]);}}},unregister:function(type,obj,func){if(obj==null){obj=this.object;}
-var listeners=this.listeners[type];if(listeners!=null){for(var i=0;i<listeners.length;i++){if(listeners[i].obj==obj&&listeners[i].func==func){listeners.splice(i,1);break;}}}},remove:function(type){if(this.listeners[type]!=null){this.listeners[type]=[];}},triggerEvent:function(type,evt){if(evt==null){evt={};}
-evt.object=this.object;evt.element=this.element;if(!evt.type){evt.type=type;}
-var listeners=(this.listeners[type])?this.listeners[type].slice():null;if((listeners!=null)&&(listeners.length>0)){var continueChain;for(var i=0;i<listeners.length;i++){var callback=listeners[i];continueChain=callback.func.apply(callback.obj,[evt]);if((continueChain!=undefined)&&(continueChain==false)){break;}}
-if(!this.fallThrough){OpenLayers.Event.stop(evt,true);}}
-return continueChain;},handleBrowserEvent:function(evt){evt.xy=this.getMousePosition(evt);this.triggerEvent(evt.type,evt);},getMousePosition:function(evt){if(!this.element.offsets){this.element.offsets=OpenLayers.Util.pagePosition(this.element);this.element.offsets[0]+=(document.documentElement.scrollLeft||document.body.scrollLeft);this.element.offsets[1]+=(document.documentElement.scrollTop||document.body.scrollTop);}
-return new OpenLayers.Pixel((evt.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft))-this.element.offsets[0]
--(document.documentElement.clientLeft||0),(evt.clientY+(document.documentElement.scrollTop||document.body.scrollTop))-this.element.offsets[1]
--(document.documentElement.clientTop||0));},CLASS_NAME:"OpenLayers.Events"});OpenLayers.Lang.en={'unhandledRequest':"Unhandled request return ${statusText}",'permalink':"Permalink",'overlays':"Overlays",'baseLayer':"Base Layer",'sameProjection':"The overview map only works when it is in the same projection as the main map",'readNotImplemented':"Read not implemented.",'writeNotImplemented':"Write not implemented.",'noFID':"Can't update a feature for which there is no FID.",'errorLoadingGML':"Error in loading GML file ${url}",'browserNotSupported':"Your browser does not support vector rendering. Currently supported renderers are:\n${renderers}",'componentShouldBe':"addFeatures : component should be an ${geomType}",'getFeatureError':"getFeatureFromEvent called on layer with no renderer. This usually means you "+"destroyed a layer, but not some handler which is associated with it.",'minZoomLevelError':"The minZoomLevel property is only intended for use "+"with the FixedZoomLevels-descendent layers. That this "+"wfs layer checks for minZoomLevel is a relic of the"+"past. We cannot, however, remove it without possibly "+"breaking OL based applications that may depend on it."+" Therefore we are deprecating it -- the minZoomLevel "+"check below will be removed at 3.0. Please instead "+"use min/max resolution setting as described here: "+"http://trac.openlayers.org/wiki/SettingZoomLevels",'commitSuccess':"WFS Transaction: SUCCESS ${response}",'commitFailed':"WFS Transaction: FAILED ${response}",'googleWarning':"The Google Layer was unable to load correctly.<br><br>"+"To get rid of this message, select a new BaseLayer "+"in the layer switcher in the upper-right corner.<br><br>"+"Most likely, this is because the Google Maps library "+"script was either not included, or does not contain the "+"correct API key for your site.<br><br>"+"Developers: For help getting this working correctly, "+"<a href='http://trac.openlayers.org/wiki/Google' "+"target='_blank'>click here</a>",'getLayerWarning':"The ${layerType} Layer was unable to load correctly.<br><br>"+"To get rid of this message, select a new BaseLayer "+"in the layer switcher in the upper-right corner.<br><br>"+"Most likely, this is because the ${layerLib} library "+"script was either not correctly included.<br><br>"+"Developers: For help getting this working correctly, "+"<a href='http://trac.openlayers.org/wiki/${layerLib}' "+"target='_blank'>click here</a>",'scale':"Scale = 1 : ${scaleDenom}",'layerAlreadyAdded':"You tried to add the layer: ${layerName} to the map, but it has already been added",'reprojectDeprecated':"You are using the 'reproject' option "+"on the ${layerName} layer. This option is deprecated: "+"its use was designed to support displaying data over commercial "+"basemaps, but that functionality should now be achieved by using "+"Spherical Mercator support. More information is available from "+"http://trac.openlayers.org/wiki/SphericalMercator.",'methodDeprecated':"This method has been deprecated and will be removed in 3.0. "+"Please use ${newMethod} instead.",'boundsAddError':"You must pass both x and y values to the add function.",'lonlatAddError':"You must pass both lon and lat values to the add function.",'pixelAddError':"You must pass both x and y values to the add function.",'unsupportedGeometryType':"Unsupported geometry type: ${geomType}",'pagePositionFailed':"OpenLayers.Util.pagePosition failed: element with id ${elemId} may be misplaced.",'end':''};OpenLayers.Projection=OpenLayers.Class({proj:null,projCode:null,initialize:function(projCode,options){OpenLayers.Util.extend(this,options);this.projCode=projCode;if(window.Proj4js){this.proj=new Proj4js.Proj(projCode);}},getCode:function(){return this.proj?this.proj.srsCode:this.projCode;},getUnits:function(){return this.proj?this.proj.units:null;},toString:function(){return this.getCode();},equals:function(projection){if(projection&&projection.getCode){return this.getCode()==projection.getCode();}else{return false;}},destroy:function(){delete this.proj;delete this.projCode;},CLASS_NAME:"OpenLayers.Projection"});OpenLayers.Projection.transforms={};OpenLayers.Projection.addTransform=function(from,to,method){if(!OpenLayers.Projection.transforms[from]){OpenLayers.Projection.transforms[from]={};}
-OpenLayers.Projection.transforms[from][to]=method;};OpenLayers.Projection.transform=function(point,source,dest){if(source.proj&&dest.proj){point=Proj4js.transform(source.proj,dest.proj,point);}else if(source&&dest&&OpenLayers.Projection.transforms[source.getCode()]&&OpenLayers.Projection.transforms[source.getCode()][dest.getCode()]){OpenLayers.Projection.transforms[source.getCode()][dest.getCode()](point);}
-return point;};OpenLayers.Tile=OpenLayers.Class({EVENT_TYPES:["loadstart","loadend","reload","unload"],events:null,id:null,layer:null,url:null,bounds:null,size:null,position:null,isLoading:false,isBackBuffer:false,lastRatio:1,isFirstDraw:true,backBufferTile:null,initialize:function(layer,position,bounds,url,size){this.layer=layer;this.position=position.clone();this.bounds=bounds.clone();this.url=url;this.size=size.clone();this.id=OpenLayers.Util.createUniqueID("Tile_");this.events=new OpenLayers.Events(this,null,this.EVENT_TYPES);},unload:function(){if(this.isLoading){this.isLoading=false;this.events.triggerEvent("unload");}},destroy:function(){if(OpenLayers.Util.indexOf(this.layer.SUPPORTED_TRANSITIONS,this.layer.transitionEffect)!=-1){this.layer.events.unregister("loadend",this,this.resetBackBuffer);this.events.unregister('loadend',this,this.resetBackBuffer);}else{this.events.unregister('loadend',this,this.showTile);}
-this.layer=null;this.bounds=null;this.size=null;this.position=null;this.events.destroy();this.events=null;if(this.backBufferTile){this.backBufferTile.destroy();this.backBufferTile=null;}},clone:function(obj){if(obj==null){obj=new OpenLayers.Tile(this.layer,this.position,this.bounds,this.url,this.size);}
-OpenLayers.Util.applyDefaults(obj,this);return obj;},draw:function(){var maxExtent=this.layer.maxExtent;var withinMaxExtent=(maxExtent&&this.bounds.intersectsBounds(maxExtent,false));var drawTile=(withinMaxExtent||this.layer.displayOutsideMaxExtent);if(OpenLayers.Util.indexOf(this.layer.SUPPORTED_TRANSITIONS,this.layer.transitionEffect)!=-1){if(drawTile){if(!this.backBufferTile){this.backBufferTile=this.clone();this.backBufferTile.hide();this.backBufferTile.isBackBuffer=true;this.events.register('loadend',this,this.resetBackBuffer);this.layer.events.register("loadend",this,this.resetBackBuffer);}
-this.startTransition();}else{if(this.backBufferTile){this.backBufferTile.clear();}}}else{if(drawTile&&this.isFirstDraw){this.events.register('loadend',this,this.showTile);this.isFirstDraw=false;}}
-this.shouldDraw=drawTile;this.clear();return drawTile;},moveTo:function(bounds,position,redraw){if(redraw==null){redraw=true;}
-this.bounds=bounds.clone();this.position=position.clone();if(redraw){this.draw();}},clear:function(){},getBoundsFromBaseLayer:function(position){var msg=OpenLayers.i18n('reprojectDeprecated',{'layerName':this.layer.name});OpenLayers.Console.warn(msg);var topLeft=this.layer.map.getLonLatFromLayerPx(position);var bottomRightPx=position.clone();bottomRightPx.x+=this.size.w;bottomRightPx.y+=this.size.h;var bottomRight=this.layer.map.getLonLatFromLayerPx(bottomRightPx);if(topLeft.lon>bottomRight.lon){if(topLeft.lon<0){topLeft.lon=-180-(topLeft.lon+180);}else{bottomRight.lon=180+bottomRight.lon+180;}}
-var bounds=new OpenLayers.Bounds(topLeft.lon,bottomRight.lat,bottomRight.lon,topLeft.lat);return bounds;},startTransition:function(){},resetBackBuffer:function(){this.showTile();if(this.backBufferTile&&(this.isFirstDraw||!this.layer.numLoadingTiles)){this.isFirstDraw=false;var maxExtent=this.layer.maxExtent;var withinMaxExtent=(maxExtent&&this.bounds.intersectsBounds(maxExtent,false));if(withinMaxExtent){this.backBufferTile.position=this.position;this.backBufferTile.bounds=this.bounds;this.backBufferTile.size=this.size;this.backBufferTile.imageSize=this.layer.imageSize||this.size;this.backBufferTile.imageOffset=this.layer.imageOffset;this.backBufferTile.resolution=this.layer.getResolution();this.backBufferTile.renderTile();}}},showTile:function(){if(this.shouldDraw){this.show();}},show:function(){},hide:function(){},CLASS_NAME:"OpenLayers.Tile"});OpenLayers.Handler=OpenLayers.Class({id:null,control:null,map:null,keyMask:null,active:false,evt:null,initialize:function(control,callbacks,options){OpenLayers.Util.extend(this,options);this.control=control;this.callbacks=callbacks;if(control.map){this.setMap(control.map);}
-OpenLayers.Util.extend(this,options);this.id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");},setMap:function(map){this.map=map;},checkModifiers:function(evt){if(this.keyMask==null){return true;}
-var keyModifiers=(evt.shiftKey?OpenLayers.Handler.MOD_SHIFT:0)|(evt.ctrlKey?OpenLayers.Handler.MOD_CTRL:0)|(evt.altKey?OpenLayers.Handler.MOD_ALT:0);return(keyModifiers==this.keyMask);},activate:function(){if(this.active){return false;}
-var events=OpenLayers.Events.prototype.BROWSER_EVENTS;for(var i=0;i<events.length;i++){if(this[events[i]]){this.register(events[i],this[events[i]]);}}
-this.active=true;return true;},deactivate:function(){if(!this.active){return false;}
-var events=OpenLayers.Events.prototype.BROWSER_EVENTS;for(var i=0;i<events.length;i++){if(this[events[i]]){this.unregister(events[i],this[events[i]]);}}
-this.active=false;return true;},callback:function(name,args){if(name&&this.callbacks[name]){this.callbacks[name].apply(this.control,args);}},register:function(name,method){this.map.events.registerPriority(name,this,method);this.map.events.registerPriority(name,this,this.setEvent);},unregister:function(name,method){this.map.events.unregister(name,this,method);this.map.events.unregister(name,this,this.setEvent);},setEvent:function(evt){this.evt=evt;return true;},destroy:function(){this.deactivate();this.control=this.map=null;},CLASS_NAME:"OpenLayers.Handler"});OpenLayers.Handler.MOD_NONE=0;OpenLayers.Handler.MOD_SHIFT=1;OpenLayers.Handler.MOD_CTRL=2;OpenLayers.Handler.MOD_ALT=4;OpenLayers.Map=OpenLayers.Class({Z_INDEX_BASE:{BaseLayer:100,Overlay:325,Popup:750,Control:1000},EVENT_TYPES:["preaddlayer","addlayer","removelayer","changelayer","movestart","move","moveend","zoomend","popupopen","popupclose","addmarker","removemarker","clearmarkers","mouseover","mouseout","mousemove","dragstart","drag","dragend","changebaselayer"],id:null,fractionalZoom:false,events:null,div:null,dragging:false,size:null,viewPortDiv:null,layerContainerOrigin:null,layerContainerDiv:null,layers:null,controls:null,popups:null,baseLayer:null,center:null,resolution:null,zoom:0,viewRequestID:0,tileSize:null,projection:"EPSG:4326",units:'degrees',resolutions:null,maxResolution:1.40625,minResolution:null,maxScale:null,minScale:null,maxExtent:null,minExtent:null,restrictedExtent:null,numZoomLevels:16,theme:null,displayProjection:null,fallThrough:true,panTween:null,eventListeners:null,panMethod:OpenLayers.Easing.Expo.easeOut,paddingForPopups:null,initialize:function(div,options){this.tileSize=new OpenLayers.Size(OpenLayers.Map.TILE_WIDTH,OpenLayers.Map.TILE_HEIGHT);this.maxExtent=new OpenLayers.Bounds(-180,-90,180,90);this.paddingForPopups=new OpenLayers.Bounds(15,15,15,15);this.theme=OpenLayers._getScriptLocation()+'theme/default/style.css';OpenLayers.Util.extend(this,options);this.id=OpenLayers.Util.createUniqueID("OpenLayers.Map_");this.div=OpenLayers.Util.getElement(div);var id=this.div.id+"_OpenLayers_ViewPort";this.viewPortDiv=OpenLayers.Util.createDiv(id,null,null,null,"relative",null,"hidden");this.viewPortDiv.style.width="100%";this.viewPortDiv.style.height="100%";this.viewPortDiv.className="olMapViewport";this.div.appendChild(this.viewPortDiv);id=this.div.id+"_OpenLayers_Container";this.layerContainerDiv=OpenLayers.Util.createDiv(id);this.layerContainerDiv.style.zIndex=this.Z_INDEX_BASE['Popup']-1;this.viewPortDiv.appendChild(this.layerContainerDiv);this.events=new OpenLayers.Events(this,this.div,this.EVENT_TYPES,this.fallThrough);this.updateSize();if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}
-this.events.register("movestart",this,this.updateSize);if(OpenLayers.String.contains(navigator.appName,"Microsoft")){this.events.register("resize",this,this.updateSize);}else{this.updateSizeDestroy=OpenLayers.Function.bind(this.updateSize,this);OpenLayers.Event.observe(window,'resize',this.updateSizeDestroy);}
-if(this.theme){var addNode=true;var nodes=document.getElementsByTagName('link');for(var i=0;i<nodes.length;++i){if(OpenLayers.Util.isEquivalentUrl(nodes.item(i).href,this.theme)){addNode=false;break;}}
-if(addNode){var cssNode=document.createElement('link');cssNode.setAttribute('rel','stylesheet');cssNode.setAttribute('type','text/css');cssNode.setAttribute('href',this.theme);document.getElementsByTagName('head')[0].appendChild(cssNode);}}
-this.layers=[];if(this.controls==null){if(OpenLayers.Control!=null){this.controls=[new OpenLayers.Control.Navigation(),new OpenLayers.Control.PanZoom(),new OpenLayers.Control.ArgParser(),new OpenLayers.Control.Attribution()];}else{this.controls=[];}}
-for(var i=0;i<this.controls.length;i++){this.addControlToMap(this.controls[i]);}
-this.popups=[];this.unloadDestroy=OpenLayers.Function.bind(this.destroy,this);OpenLayers.Event.observe(window,'unload',this.unloadDestroy);},unloadDestroy:null,updateSizeDestroy:null,destroy:function(){if(!this.unloadDestroy){return false;}
-OpenLayers.Event.stopObserving(window,'unload',this.unloadDestroy);this.unloadDestroy=null;if(this.updateSizeDestroy){OpenLayers.Event.stopObserving(window,'resize',this.updateSizeDestroy);}else{this.events.unregister("resize",this,this.updateSize);}
-this.paddingForPopups=null;if(this.controls!=null){for(var i=this.controls.length-1;i>=0;--i){this.controls[i].destroy();}
-this.controls=null;}
-if(this.layers!=null){for(var i=this.layers.length-1;i>=0;--i){this.layers[i].destroy(false);}
-this.layers=null;}
-if(this.viewPortDiv){this.div.removeChild(this.viewPortDiv);}
-this.viewPortDiv=null;if(this.eventListeners){this.events.un(this.eventListeners);this.eventListeners=null;}
-this.events.destroy();this.events=null;},setOptions:function(options){OpenLayers.Util.extend(this,options);},getTileSize:function(){return this.tileSize;},getBy:function(array,property,match){var test=(typeof match.test=="function");var found=OpenLayers.Array.filter(this[array],function(item){return item[property]==match||(test&&match.test(item[property]));});return found;},getLayersBy:function(property,match){return this.getBy("layers",property,match);},getLayersByName:function(match){return this.getLayersBy("name",match);},getLayersByClass:function(match){return this.getLayersBy("CLASS_NAME",match);},getControlsBy:function(property,match){return this.getBy("controls",property,match);},getControlsByClass:function(match){return this.getControlsBy("CLASS_NAME",match);},getLayer:function(id){var foundLayer=null;for(var i=0;i<this.layers.length;i++){var layer=this.layers[i];if(layer.id==id){foundLayer=layer;break;}}
-return foundLayer;},setLayerZIndex:function(layer,zIdx){layer.setZIndex(this.Z_INDEX_BASE[layer.isBaseLayer?'BaseLayer':'Overlay']
-+zIdx*5);},resetLayersZIndex:function(){for(var i=0;i<this.layers.length;i++){var layer=this.layers[i];this.setLayerZIndex(layer,i);}},addLayer:function(layer){for(var i=0;i<this.layers.length;i++){if(this.layers[i]==layer){var msg=OpenLayers.i18n('layerAlreadyAdded',{'layerName':layer.name});OpenLayers.Console.warn(msg);return false;}}
-this.events.triggerEvent("preaddlayer",{layer:layer});layer.div.className="olLayerDiv";layer.div.style.overflow="";this.setLayerZIndex(layer,this.layers.length);if(layer.isFixed){this.viewPortDiv.appendChild(layer.div);}else{this.layerContainerDiv.appendChild(layer.div);}
-this.layers.push(layer);layer.setMap(this);if(layer.isBaseLayer){if(this.baseLayer==null){this.setBaseLayer(layer);}else{layer.setVisibility(false);}}else{layer.redraw();}
-this.events.triggerEvent("addlayer",{layer:layer});},addLayers:function(layers){for(var i=0;i<layers.length;i++){this.addLayer(layers[i]);}},removeLayer:function(layer,setNewBaseLayer){if(setNewBaseLayer==null){setNewBaseLayer=true;}
-if(layer.isFixed){this.viewPortDiv.removeChild(layer.div);}else{this.layerContainerDiv.removeChild(layer.div);}
-OpenLayers.Util.removeItem(this.layers,layer);layer.removeMap(this);layer.map=null;if(this.baseLayer==layer){this.baseLayer=null;if(setNewBaseLayer){for(var i=0;i<this.layers.length;i++){var iLayer=this.layers[i];if(iLayer.isBaseLayer){this.setBaseLayer(iLayer);break;}}}}
-this.resetLayersZIndex();this.events.triggerEvent("removelayer",{layer:layer});},getNumLayers:function(){return this.layers.length;},getLayerIndex:function(layer){return OpenLayers.Util.indexOf(this.layers,layer);},setLayerIndex:function(layer,idx){var base=this.getLayerIndex(layer);if(idx<0){idx=0;}else if(idx>this.layers.length){idx=this.layers.length;}
-if(base!=idx){this.layers.splice(base,1);this.layers.splice(idx,0,layer);for(var i=0;i<this.layers.length;i++){this.setLayerZIndex(this.layers[i],i);}
-this.events.triggerEvent("changelayer",{layer:layer,property:"order"});}},raiseLayer:function(layer,delta){var idx=this.getLayerIndex(layer)+delta;this.setLayerIndex(layer,idx);},setBaseLayer:function(newBaseLayer){var oldExtent=null;if(this.baseLayer){oldExtent=this.baseLayer.getExtent();}
-if(newBaseLayer!=this.baseLayer){if(OpenLayers.Util.indexOf(this.layers,newBaseLayer)!=-1){if(this.baseLayer!=null){this.baseLayer.setVisibility(false);}
-this.baseLayer=newBaseLayer;this.viewRequestID++;this.baseLayer.visibility=true;var center=this.getCenter();if(center!=null){var newCenter=(oldExtent)?oldExtent.getCenterLonLat():center;var newZoom=(oldExtent)?this.getZoomForExtent(oldExtent,true):this.getZoomForResolution(this.resolution,true);this.setCenter(newCenter,newZoom,false,true);}
-this.events.triggerEvent("changebaselayer",{layer:this.baseLayer});}}},addControl:function(control,px){this.controls.push(control);this.addControlToMap(control,px);},addControlToMap:function(control,px){control.outsideViewport=(control.div!=null);if(this.displayProjection&&!control.displayProjection){control.displayProjection=this.displayProjection;}
-control.setMap(this);var div=control.draw(px);if(div){if(!control.outsideViewport){div.style.zIndex=this.Z_INDEX_BASE['Control']+
-this.controls.length;this.viewPortDiv.appendChild(div);}}},getControl:function(id){var returnControl=null;for(var i=0;i<this.controls.length;i++){var control=this.controls[i];if(control.id==id){returnControl=control;break;}}
-return returnControl;},removeControl:function(control){if((control)&&(control==this.getControl(control.id))){if(control.div&&(control.div.parentNode==this.viewPortDiv)){this.viewPortDiv.removeChild(control.div);}
-OpenLayers.Util.removeItem(this.controls,control);}},addPopup:function(popup,exclusive){if(exclusive){for(var i=this.popups.length-1;i>=0;--i){this.removePopup(this.popups[i]);}}
-popup.map=this;this.popups.push(popup);var popupDiv=popup.draw();if(popupDiv){popupDiv.style.zIndex=this.Z_INDEX_BASE['Popup']+
-this.popups.length;this.layerContainerDiv.appendChild(popupDiv);}},removePopup:function(popup){OpenLayers.Util.removeItem(this.popups,popup);if(popup.div){try{this.layerContainerDiv.removeChild(popup.div);}
-catch(e){}}
-popup.map=null;},getSize:function(){var size=null;if(this.size!=null){size=this.size.clone();}
-return size;},updateSize:function(){this.events.element.offsets=null;var newSize=this.getCurrentSize();var oldSize=this.getSize();if(oldSize==null){this.size=oldSize=newSize;}
-if(!newSize.equals(oldSize)){this.size=newSize;for(var i=0;i<this.layers.length;i++){this.layers[i].onMapResize();}
-if(this.baseLayer!=null){var center=new OpenLayers.Pixel(newSize.w/2,newSize.h/2);var centerLL=this.getLonLatFromViewPortPx(center);var zoom=this.getZoom();this.zoom=null;this.setCenter(this.getCenter(),zoom);}}},getCurrentSize:function(){var size=new OpenLayers.Size(this.div.clientWidth,this.div.clientHeight);if(size.w==0&&size.h==0||isNaN(size.w)&&isNaN(size.h)){var dim=OpenLayers.Element.getDimensions(this.div);size.w=dim.width;size.h=dim.height;}
-if(size.w==0&&size.h==0||isNaN(size.w)&&isNaN(size.h)){size.w=parseInt(this.div.style.width);size.h=parseInt(this.div.style.height);}
-return size;},calculateBounds:function(center,resolution){var extent=null;if(center==null){center=this.getCenter();}
-if(resolution==null){resolution=this.getResolution();}
-if((center!=null)&&(resolution!=null)){var size=this.getSize();var w_deg=size.w*resolution;var h_deg=size.h*resolution;extent=new OpenLayers.Bounds(center.lon-w_deg/2,center.lat-h_deg/2,center.lon+w_deg/2,center.lat+h_deg/2);}
-return extent;},getCenter:function(){return this.center;},getZoom:function(){return this.zoom;},pan:function(dx,dy,options){if(!options){options={};}
-OpenLayers.Util.applyDefaults(options,{animate:true,dragging:false});var centerPx=this.getViewPortPxFromLonLat(this.getCenter());var newCenterPx=centerPx.add(dx,dy);if(!options.dragging||!newCenterPx.equals(centerPx)){var newCenterLonLat=this.getLonLatFromViewPortPx(newCenterPx);if(options.animate){this.panTo(newCenterLonLat);}else{this.setCenter(newCenterLonLat,null,options.dragging);}}},panTo:function(lonlat){if(this.panMethod&&this.getExtent().containsLonLat(lonlat)){if(!this.panTween){this.panTween=new OpenLayers.Tween(this.panMethod);}
-var center=this.getCenter();var from={lon:center.lon,lat:center.lat};var to={lon:lonlat.lon,lat:lonlat.lat};this.panTween.start(from,to,50,{callbacks:{start:OpenLayers.Function.bind(function(lonlat){this.events.triggerEvent("movestart");},this),eachStep:OpenLayers.Function.bind(function(lonlat){lonlat=new OpenLayers.LonLat(lonlat.lon,lonlat.lat);this.moveTo(lonlat,this.zoom,{'dragging':true,'noEvent':true});},this),done:OpenLayers.Function.bind(function(lonlat){lonlat=new OpenLayers.LonLat(lonlat.lon,lonlat.lat);this.moveTo(lonlat,this.zoom,{'noEvent':true});this.events.triggerEvent("moveend");},this)}});}else{this.setCenter(lonlat);}},setCenter:function(lonlat,zoom,dragging,forceZoomChange){this.moveTo(lonlat,zoom,{'dragging':dragging,'forceZoomChange':forceZoomChange,'caller':'setCenter'});},moveTo:function(lonlat,zoom,options){if(!options){options={};}
-var dragging=options.dragging;var forceZoomChange=options.forceZoomChange;var noEvent=options.noEvent;if(this.panTween&&options.caller=="setCenter"){this.panTween.stop();}
-if(!this.center&&!this.isValidLonLat(lonlat)){lonlat=this.maxExtent.getCenterLonLat();}
-if(this.restrictedExtent!=null){if(lonlat==null){lonlat=this.getCenter();}
-if(zoom==null){zoom=this.getZoom();}
-var resolution=this.getResolutionForZoom(zoom);var extent=this.calculateBounds(lonlat,resolution);if(!this.restrictedExtent.containsBounds(extent)){var maxCenter=this.restrictedExtent.getCenterLonLat();if(extent.getWidth()>this.restrictedExtent.getWidth()){lonlat=new OpenLayers.LonLat(maxCenter.lon,lonlat.lat);}else if(extent.left<this.restrictedExtent.left){lonlat=lonlat.add(this.restrictedExtent.left-
-extent.left,0);}else if(extent.right>this.restrictedExtent.right){lonlat=lonlat.add(this.restrictedExtent.right-
-extent.right,0);}
-if(extent.getHeight()>this.restrictedExtent.getHeight()){lonlat=new OpenLayers.LonLat(lonlat.lon,maxCenter.lat);}else if(extent.bottom<this.restrictedExtent.bottom){lonlat=lonlat.add(0,this.restrictedExtent.bottom-
-extent.bottom);}
-else if(extent.top>this.restrictedExtent.top){lonlat=lonlat.add(0,this.restrictedExtent.top-
-extent.top);}}}
-var zoomChanged=forceZoomChange||((this.isValidZoomLevel(zoom))&&(zoom!=this.getZoom()));var centerChanged=(this.isValidLonLat(lonlat))&&(!lonlat.equals(this.center));if(zoomChanged||centerChanged||!dragging){if(!this.dragging&&!noEvent){this.events.triggerEvent("movestart");}
-if(centerChanged){if((!zoomChanged)&&(this.center)){this.centerLayerContainer(lonlat);}
-this.center=lonlat.clone();}
-if((zoomChanged)||(this.layerContainerOrigin==null)){this.layerContainerOrigin=this.center.clone();this.layerContainerDiv.style.left="0px";this.layerContainerDiv.style.top="0px";}
-if(zoomChanged){this.zoom=zoom;this.resolution=this.getResolutionForZoom(zoom);this.viewRequestID++;}
-var bounds=this.getExtent();this.baseLayer.moveTo(bounds,zoomChanged,dragging);bounds=this.baseLayer.getExtent();for(var i=0;i<this.layers.length;i++){var layer=this.layers[i];if(!layer.isBaseLayer){var inRange=layer.calculateInRange();if(layer.inRange!=inRange){layer.inRange=inRange;if(!inRange){layer.display(false);}
-this.events.triggerEvent("changelayer",{layer:layer,property:"visibility"});}
-if(inRange&&layer.visibility){layer.moveTo(bounds,zoomChanged,dragging);}}}
-if(zoomChanged){for(var i=0;i<this.popups.length;i++){this.popups[i].updatePosition();}}
-this.events.triggerEvent("move");if(zoomChanged){this.events.triggerEvent("zoomend");}}
-if(!dragging&&!noEvent){this.events.triggerEvent("moveend");}
-this.dragging=!!dragging;},centerLayerContainer:function(lonlat){var originPx=this.getViewPortPxFromLonLat(this.layerContainerOrigin);var newPx=this.getViewPortPxFromLonLat(lonlat);if((originPx!=null)&&(newPx!=null)){this.layerContainerDiv.style.left=Math.round(originPx.x-newPx.x)+"px";this.layerContainerDiv.style.top=Math.round(originPx.y-newPx.y)+"px";}},isValidZoomLevel:function(zoomLevel){return((zoomLevel!=null)&&(zoomLevel>=0)&&(zoomLevel<this.getNumZoomLevels()));},isValidLonLat:function(lonlat){var valid=false;if(lonlat!=null){var maxExtent=this.getMaxExtent();valid=maxExtent.containsLonLat(lonlat);}
-return valid;},getProjection:function(){var projection=this.getProjectionObject();return projection?projection.getCode():null;},getProjectionObject:function(){var projection=null;if(this.baseLayer!=null){projection=this.baseLayer.projection;}
-return projection;},getMaxResolution:function(){var maxResolution=null;if(this.baseLayer!=null){maxResolution=this.baseLayer.maxResolution;}
-return maxResolution;},getMaxExtent:function(){var maxExtent=null;if(this.baseLayer!=null){maxExtent=this.baseLayer.maxExtent;}
-return maxExtent;},getNumZoomLevels:function(){var numZoomLevels=null;if(this.baseLayer!=null){numZoomLevels=this.baseLayer.numZoomLevels;}
-return numZoomLevels;},getExtent:function(){var extent=null;if(this.baseLayer!=null){extent=this.baseLayer.getExtent();}
-return extent;},getResolution:function(){var resolution=null;if(this.baseLayer!=null){resolution=this.baseLayer.getResolution();}
-return resolution;},getScale:function(){var scale=null;if(this.baseLayer!=null){var res=this.getResolution();var units=this.baseLayer.units;scale=OpenLayers.Util.getScaleFromResolution(res,units);}
-return scale;},getZoomForExtent:function(bounds,closest){var zoom=null;if(this.baseLayer!=null){zoom=this.baseLayer.getZoomForExtent(bounds,closest);}
-return zoom;},getResolutionForZoom:function(zoom){var resolution=null;if(this.baseLayer){resolution=this.baseLayer.getResolutionForZoom(zoom);}
-return resolution;},getZoomForResolution:function(resolution,closest){var zoom=null;if(this.baseLayer!=null){zoom=this.baseLayer.getZoomForResolution(resolution,closest);}
-return zoom;},zoomTo:function(zoom){if(this.isValidZoomLevel(zoom)){this.setCenter(null,zoom);}},zoomIn:function(){this.zoomTo(this.getZoom()+1);},zoomOut:function(){this.zoomTo(this.getZoom()-1);},zoomToExtent:function(bounds){var center=bounds.getCenterLonLat();if(this.baseLayer.wrapDateLine){var maxExtent=this.getMaxExtent();bounds=bounds.clone();while(bounds.right<bounds.left){bounds.right+=maxExtent.getWidth();}
-center=bounds.getCenterLonLat().wrapDateLine(maxExtent);}
-this.setCenter(center,this.getZoomForExtent(bounds));},zoomToMaxExtent:function(){this.zoomToExtent(this.getMaxExtent());},zoomToScale:function(scale){var res=OpenLayers.Util.getResolutionFromScale(scale,this.baseLayer.units);var size=this.getSize();var w_deg=size.w*res;var h_deg=size.h*res;var center=this.getCenter();var extent=new OpenLayers.Bounds(center.lon-w_deg/2,center.lat-h_deg/2,center.lon+w_deg/2,center.lat+h_deg/2);this.zoomToExtent(extent);},getLonLatFromViewPortPx:function(viewPortPx){var lonlat=null;if(this.baseLayer!=null){lonlat=this.baseLayer.getLonLatFromViewPortPx(viewPortPx);}
-return lonlat;},getViewPortPxFromLonLat:function(lonlat){var px=null;if(this.baseLayer!=null){px=this.baseLayer.getViewPortPxFromLonLat(lonlat);}
-return px;},getLonLatFromPixel:function(px){return this.getLonLatFromViewPortPx(px);},getPixelFromLonLat:function(lonlat){var px=this.getViewPortPxFromLonLat(lonlat);px.x=Math.round(px.x);px.y=Math.round(px.y);return px;},getViewPortPxFromLayerPx:function(layerPx){var viewPortPx=null;if(layerPx!=null){var dX=parseInt(this.layerContainerDiv.style.left);var dY=parseInt(this.layerContainerDiv.style.top);viewPortPx=layerPx.add(dX,dY);}
-return viewPortPx;},getLayerPxFromViewPortPx:function(viewPortPx){var layerPx=null;if(viewPortPx!=null){var dX=-parseInt(this.layerContainerDiv.style.left);var dY=-parseInt(this.layerContainerDiv.style.top);layerPx=viewPortPx.add(dX,dY);if(isNaN(layerPx.x)||isNaN(layerPx.y)){layerPx=null;}}
-return layerPx;},getLonLatFromLayerPx:function(px){px=this.getViewPortPxFromLayerPx(px);return this.getLonLatFromViewPortPx(px);},getLayerPxFromLonLat:function(lonlat){var px=this.getPixelFromLonLat(lonlat);return this.getLayerPxFromViewPortPx(px);},CLASS_NAME:"OpenLayers.Map"});OpenLayers.Map.TILE_WIDTH=256;OpenLayers.Map.TILE_HEIGHT=256;OpenLayers.Marker=OpenLayers.Class({icon:null,lonlat:null,events:null,map:null,initialize:function(lonlat,icon){this.lonlat=lonlat;var newIcon=(icon)?icon:OpenLayers.Marker.defaultIcon();if(this.icon==null){this.icon=newIcon;}else{this.icon.url=newIcon.url;this.icon.size=newIcon.size;this.icon.offset=newIcon.offset;this.icon.calculateOffset=newIcon.calculateOffset;}
-this.events=new OpenLayers.Events(this,this.icon.imageDiv,null);},destroy:function(){this.map=null;this.events.destroy();this.events=null;if(this.icon!=null){this.icon.destroy();this.icon=null;}},draw:function(px){return this.icon.draw(px);},moveTo:function(px){if((px!=null)&&(this.icon!=null)){this.icon.moveTo(px);}
-this.lonlat=this.map.getLonLatFromLayerPx(px);},onScreen:function(){var onScreen=false;if(this.map){var screenBounds=this.map.getExtent();onScreen=screenBounds.containsLonLat(this.lonlat);}
-return onScreen;},inflate:function(inflate){if(this.icon){var newSize=new OpenLayers.Size(this.icon.size.w*inflate,this.icon.size.h*inflate);this.icon.setSize(newSize);}},setOpacity:function(opacity){this.icon.setOpacity(opacity);},setUrl:function(url){this.icon.setUrl(url);},display:function(display){this.icon.display(display);},CLASS_NAME:"OpenLayers.Marker"});OpenLayers.Marker.defaultIcon=function(){var url=OpenLayers.Util.getImagesLocation()+"marker.png";var size=new OpenLayers.Size(21,25);var calculateOffset=function(size){return new OpenLayers.Pixel(-(size.w/2),-size.h);};return new OpenLayers.Icon(url,size,null,calculateOffset);};OpenLayers.Tile.Image=OpenLayers.Class(OpenLayers.Tile,{url:null,imgDiv:null,frame:null,layerAlphaHack:null,initialize:function(layer,position,bounds,url,size){OpenLayers.Tile.prototype.initialize.apply(this,arguments);this.url=url;this.frame=document.createElement('div');this.frame.style.overflow='hidden';this.frame.style.position='absolute';this.layerAlphaHack=this.layer.alpha&&OpenLayers.Util.alphaHack();},destroy:function(){if(this.imgDiv!=null){if(this.layerAlphaHack){OpenLayers.Event.stopObservingElement(this.imgDiv.childNodes[0].id);}else{OpenLayers.Event.stopObservingElement(this.imgDiv.id);}
-if(this.imgDiv.parentNode==this.frame){this.frame.removeChild(this.imgDiv);this.imgDiv.map=null;}}
-this.imgDiv=null;if((this.frame!=null)&&(this.frame.parentNode==this.layer.div)){this.layer.div.removeChild(this.frame);}
-this.frame=null;OpenLayers.Tile.prototype.destroy.apply(this,arguments);},clone:function(obj){if(obj==null){obj=new OpenLayers.Tile.Image(this.layer,this.position,this.bounds,this.url,this.size);}
-obj=OpenLayers.Tile.prototype.clone.apply(this,[obj]);obj.imgDiv=null;return obj;},draw:function(){if(this.layer!=this.layer.map.baseLayer&&this.layer.reproject){this.bounds=this.getBoundsFromBaseLayer(this.position);}
-if(!OpenLayers.Tile.prototype.draw.apply(this,arguments)){return false;}
-if(this.isLoading){this.events.triggerEvent("reload");}else{this.isLoading=true;this.events.triggerEvent("loadstart");}
-return this.renderTile();},renderTile:function(){if(this.imgDiv==null){this.initImgDiv();}
-this.imgDiv.viewRequestID=this.layer.map.viewRequestID;this.url=this.layer.getURL(this.bounds);OpenLayers.Util.modifyDOMElement(this.frame,null,this.position,this.size);var imageSize=this.layer.getImageSize();if(this.layerAlphaHack){OpenLayers.Util.modifyAlphaImageDiv(this.imgDiv,null,null,imageSize,this.url);}else{OpenLayers.Util.modifyDOMElement(this.imgDiv,null,null,imageSize);this.imgDiv.src=this.url;}
-return true;},clear:function(){if(this.imgDiv){this.hide();if(OpenLayers.Tile.Image.useBlankTile){this.imgDiv.src=OpenLayers.Util.getImagesLocation()+"blank.gif";}}},initImgDiv:function(){var offset=this.layer.imageOffset;var size=this.layer.getImageSize();if(this.layerAlphaHack){this.imgDiv=OpenLayers.Util.createAlphaImageDiv(null,offset,size,null,"relative",null,null,null,true);}else{this.imgDiv=OpenLayers.Util.createImage(null,offset,size,null,"relative",null,null,true);}
-this.imgDiv.className='olTileImage';this.frame.style.zIndex=this.isBackBuffer?0:1;this.frame.appendChild(this.imgDiv);this.layer.div.appendChild(this.frame);if(this.layer.opacity!=null){OpenLayers.Util.modifyDOMElement(this.imgDiv,null,null,null,null,null,null,this.layer.opacity);}
-this.imgDiv.map=this.layer.map;var onload=function(){if(this.isLoading){this.isLoading=false;this.events.triggerEvent("loadend");}};if(this.layerAlphaHack){OpenLayers.Event.observe(this.imgDiv.childNodes[0],'load',OpenLayers.Function.bind(onload,this));}else{OpenLayers.Event.observe(this.imgDiv,'load',OpenLayers.Function.bind(onload,this));}
-var onerror=function(){if(this.imgDiv._attempts>OpenLayers.IMAGE_RELOAD_ATTEMPTS){onload.call(this);}};OpenLayers.Event.observe(this.imgDiv,"error",OpenLayers.Function.bind(onerror,this));},checkImgURL:function(){if(this.layer){var loaded=this.layerAlphaHack?this.imgDiv.firstChild.src:this.imgDiv.src;if(!OpenLayers.Util.isEquivalentUrl(loaded,this.url)){this.hide();}}},startTransition:function(){if(!this.backBufferTile||!this.backBufferTile.imgDiv){return;}
-var ratio=1;if(this.backBufferTile.resolution){ratio=this.backBufferTile.resolution/this.layer.getResolution();}
-if(ratio!=this.lastRatio){if(this.layer.transitionEffect=='resize'){var upperLeft=new OpenLayers.LonLat(this.backBufferTile.bounds.left,this.backBufferTile.bounds.top);var size=new OpenLayers.Size(this.backBufferTile.size.w*ratio,this.backBufferTile.size.h*ratio);var px=this.layer.map.getLayerPxFromLonLat(upperLeft);OpenLayers.Util.modifyDOMElement(this.backBufferTile.frame,null,px,size);var imageSize=this.backBufferTile.imageSize;imageSize=new OpenLayers.Size(imageSize.w*ratio,imageSize.h*ratio);var imageOffset=this.backBufferTile.imageOffset;if(imageOffset){imageOffset=new OpenLayers.Pixel(imageOffset.x*ratio,imageOffset.y*ratio);}
-OpenLayers.Util.modifyDOMElement(this.backBufferTile.imgDiv,null,imageOffset,imageSize);this.backBufferTile.show();}}else{if(this.layer.singleTile){this.backBufferTile.show();}else{this.backBufferTile.hide();}}
-this.lastRatio=ratio;},show:function(){this.frame.style.display='';if(OpenLayers.Util.indexOf(this.layer.SUPPORTED_TRANSITIONS,this.layer.transitionEffect)!=-1){if(navigator.userAgent.toLowerCase().indexOf("gecko")!=-1){this.frame.scrollLeft=this.frame.scrollLeft;}}},hide:function(){this.frame.style.display='none';},CLASS_NAME:"OpenLayers.Tile.Image"});OpenLayers.Tile.Image.useBlankTile=(OpenLayers.Util.getBrowserName()=="safari"||OpenLayers.Util.getBrowserName()=="opera");OpenLayers.Control.OverviewMap=OpenLayers.Class(OpenLayers.Control,{element:null,ovmap:null,size:new OpenLayers.Size(180,90),layers:null,minRectSize:15,minRectDisplayClass:"RectReplacement",minRatio:8,maxRatio:32,mapOptions:null,handlers:null,initialize:function(options){this.layers=[];this.handlers={};OpenLayers.Control.prototype.initialize.apply(this,[options]);},destroy:function(){if(!this.mapDiv){return;}
-this.handlers.click.destroy();this.mapDiv.removeChild(this.extentRectangle);this.extentRectangle=null;this.rectEvents.destroy();this.rectEvents=null;this.ovmap.destroy();this.ovmap=null;this.element.removeChild(this.mapDiv);this.mapDiv=null;this.div.removeChild(this.element);this.element=null;if(this.maximizeDiv){OpenLayers.Event.stopObservingElement(this.maximizeDiv);this.div.removeChild(this.maximizeDiv);this.maximizeDiv=null;}
-if(this.minimizeDiv){OpenLayers.Event.stopObservingElement(this.minimizeDiv);this.div.removeChild(this.minimizeDiv);this.minimizeDiv=null;}
-this.map.events.un({"moveend":this.update,"changebaselayer":this.baseLayerDraw,scope:this});OpenLayers.Control.prototype.destroy.apply(this,arguments);},draw:function(){OpenLayers.Control.prototype.draw.apply(this,arguments);if(!(this.layers.length>0)){if(this.map.baseLayer){var layer=this.map.baseLayer.clone();this.layers=[layer];}else{this.map.events.register("changebaselayer",this,this.baseLayerDraw);return this.div;}}
-this.element=document.createElement('div');this.element.className=this.displayClass+'Element';this.element.style.display='none';this.mapDiv=document.createElement('div');this.mapDiv.style.width=this.size.w+'px';this.mapDiv.style.height=this.size.h+'px';this.mapDiv.style.position='relative';this.mapDiv.style.overflow='hidden';this.mapDiv.id=OpenLayers.Util.createUniqueID('overviewMap');this.extentRectangle=document.createElement('div');this.extentRectangle.style.position='absolute';this.extentRectangle.style.zIndex=1000;this.extentRectangle.className=this.displayClass+'ExtentRectangle';this.mapDiv.appendChild(this.extentRectangle);this.element.appendChild(this.mapDiv);this.div.appendChild(this.element);if(!this.outsideViewport){this.div.className+=" "+this.displayClass+'Container';var imgLocation=OpenLayers.Util.getImagesLocation();var img=imgLocation+'layer-switcher-maximize.png';this.maximizeDiv=OpenLayers.Util.createAlphaImageDiv(this.displayClass+'MaximizeButton',null,new OpenLayers.Size(18,18),img,'absolute');this.maximizeDiv.style.display='none';this.maximizeDiv.className=this.displayClass+'MaximizeButton';OpenLayers.Event.observe(this.maximizeDiv,'click',OpenLayers.Function.bindAsEventListener(this.maximizeControl,this));this.div.appendChild(this.maximizeDiv);var img=imgLocation+'layer-switcher-minimize.png';this.minimizeDiv=OpenLayers.Util.createAlphaImageDiv('OpenLayers_Control_minimizeDiv',null,new OpenLayers.Size(18,18),img,'absolute');this.minimizeDiv.style.display='none';this.minimizeDiv.className=this.displayClass+'MinimizeButton';OpenLayers.Event.observe(this.minimizeDiv,'click',OpenLayers.Function.bindAsEventListener(this.minimizeControl,this));this.div.appendChild(this.minimizeDiv);var eventsToStop=['dblclick','mousedown'];for(var i=0;i<eventsToStop.length;i++){OpenLayers.Event.observe(this.maximizeDiv,eventsToStop[i],OpenLayers.Event.stop);OpenLayers.Event.observe(this.minimizeDiv,eventsToStop[i],OpenLayers.Event.stop);}
-this.minimizeControl();}else{this.element.style.display='';}
-if(this.map.getExtent()){this.update();}
-this.map.events.register('moveend',this,this.update);return this.div;},baseLayerDraw:function(){this.draw();this.map.events.unregister("changebaselayer",this,this.baseLayerDraw);},rectDrag:function(px){var deltaX=this.handlers.drag.last.x-px.x;var deltaY=this.handlers.drag.last.y-px.y;if(deltaX!=0||deltaY!=0){var rectTop=this.rectPxBounds.top;var rectLeft=this.rectPxBounds.left;var rectHeight=Math.abs(this.rectPxBounds.getHeight());var rectWidth=this.rectPxBounds.getWidth();var newTop=Math.max(0,(rectTop-deltaY));newTop=Math.min(newTop,this.ovmap.size.h-this.hComp-rectHeight);var newLeft=Math.max(0,(rectLeft-deltaX));newLeft=Math.min(newLeft,this.ovmap.size.w-this.wComp-rectWidth);this.setRectPxBounds(new OpenLayers.Bounds(newLeft,newTop+rectHeight,newLeft+rectWidth,newTop));}},mapDivClick:function(evt){var pxCenter=this.rectPxBounds.getCenterPixel();var deltaX=evt.xy.x-pxCenter.x;var deltaY=evt.xy.y-pxCenter.y;var top=this.rectPxBounds.top;var left=this.rectPxBounds.left;var height=Math.abs(this.rectPxBounds.getHeight());var width=this.rectPxBounds.getWidth();var newTop=Math.max(0,(top+deltaY));newTop=Math.min(newTop,this.ovmap.size.h-height);var newLeft=Math.max(0,(left+deltaX));newLeft=Math.min(newLeft,this.ovmap.size.w-width);this.setRectPxBounds(new OpenLayers.Bounds(newLeft,newTop+height,newLeft+width,newTop));this.updateMapToRect();},maximizeControl:function(e){this.element.style.display='';this.showToggle(false);if(e!=null){OpenLayers.Event.stop(e);}},minimizeControl:function(e){this.element.style.display='none';this.showToggle(true);if(e!=null){OpenLayers.Event.stop(e);}},showToggle:function(minimize){this.maximizeDiv.style.display=minimize?'':'none';this.minimizeDiv.style.display=minimize?'none':'';},update:function(){if(this.ovmap==null){this.createMap();}
-if(!this.isSuitableOverview()){this.updateOverview();}
-this.updateRectToMap();},isSuitableOverview:function(){var mapExtent=this.map.getExtent();var maxExtent=this.map.maxExtent;var testExtent=new OpenLayers.Bounds(Math.max(mapExtent.left,maxExtent.left),Math.max(mapExtent.bottom,maxExtent.bottom),Math.min(mapExtent.right,maxExtent.right),Math.min(mapExtent.top,maxExtent.top));var resRatio=this.ovmap.getResolution()/this.map.getResolution();return((resRatio>this.minRatio)&&(resRatio<=this.maxRatio)&&(this.ovmap.getExtent().containsBounds(testExtent)));},updateOverview:function(){var mapRes=this.map.getResolution();var targetRes=this.ovmap.getResolution();var resRatio=targetRes/mapRes;if(resRatio>this.maxRatio){targetRes=this.minRatio*mapRes;}else if(resRatio<=this.minRatio){targetRes=this.maxRatio*mapRes;}
-this.ovmap.setCenter(this.map.center,this.ovmap.getZoomForResolution(targetRes));this.updateRectToMap();},createMap:function(){var options=OpenLayers.Util.extend({controls:[],maxResolution:'auto',fallThrough:false},this.mapOptions);this.ovmap=new OpenLayers.Map(this.mapDiv,options);OpenLayers.Event.stopObserving(window,'unload',this.ovmap.unloadDestroy);this.ovmap.addLayers(this.layers);this.ovmap.zoomToMaxExtent();this.wComp=parseInt(OpenLayers.Element.getStyle(this.extentRectangle,'border-left-width'))+
-parseInt(OpenLayers.Element.getStyle(this.extentRectangle,'border-right-width'));this.wComp=(this.wComp)?this.wComp:2;this.hComp=parseInt(OpenLayers.Element.getStyle(this.extentRectangle,'border-top-width'))+
-parseInt(OpenLayers.Element.getStyle(this.extentRectangle,'border-bottom-width'));this.hComp=(this.hComp)?this.hComp:2;this.handlers.drag=new OpenLayers.Handler.Drag(this,{move:this.rectDrag,done:this.updateMapToRect},{map:this.ovmap});this.handlers.click=new OpenLayers.Handler.Click(this,{"click":this.mapDivClick},{"single":true,"double":false,"stopSingle":true,"stopDouble":true,"pixelTolerance":1,map:this.ovmap});this.handlers.click.activate();this.rectEvents=new OpenLayers.Events(this,this.extentRectangle,null,true);this.rectEvents.register("mouseover",this,function(e){if(!this.handlers.drag.active&&!this.map.dragging){this.handlers.drag.activate();}});this.rectEvents.register("mouseout",this,function(e){if(!this.handlers.drag.dragging){this.handlers.drag.deactivate();}});},updateRectToMap:function(){if(this.map.units!='degrees'){if(this.ovmap.getProjection()&&(this.map.getProjection()!=this.ovmap.getProjection())){alert(OpenLayers.i18n("sameProjection"));}}
-var pxBounds=this.getRectBoundsFromMapBounds(this.map.getExtent());if(pxBounds){this.setRectPxBounds(pxBounds);}},updateMapToRect:function(){var lonLatBounds=this.getMapBoundsFromRectBounds(this.rectPxBounds);this.map.panTo(lonLatBounds.getCenterLonLat());},setRectPxBounds:function(pxBounds){var top=Math.max(pxBounds.top,0);var left=Math.max(pxBounds.left,0);var bottom=Math.min(pxBounds.top+Math.abs(pxBounds.getHeight()),this.ovmap.size.h-this.hComp);var right=Math.min(pxBounds.left+pxBounds.getWidth(),this.ovmap.size.w-this.wComp);var width=Math.max(right-left,0);var height=Math.max(bottom-top,0);if(width<this.minRectSize||height<this.minRectSize){this.extentRectangle.className=this.displayClass+
-this.minRectDisplayClass;var rLeft=left+(width/2)-(this.minRectSize/2);var rTop=top+(height/2)-(this.minRectSize/2);this.extentRectangle.style.top=Math.round(rTop)+'px';this.extentRectangle.style.left=Math.round(rLeft)+'px';this.extentRectangle.style.height=this.minRectSize+'px';this.extentRectangle.style.width=this.minRectSize+'px';}else{this.extentRectangle.className=this.displayClass+'ExtentRectangle';this.extentRectangle.style.top=Math.round(top)+'px';this.extentRectangle.style.left=Math.round(left)+'px';this.extentRectangle.style.height=Math.round(height)+'px';this.extentRectangle.style.width=Math.round(width)+'px';}
-this.rectPxBounds=new OpenLayers.Bounds(Math.round(left),Math.round(bottom),Math.round(right),Math.round(top));},getRectBoundsFromMapBounds:function(lonLatBounds){var leftBottomLonLat=new OpenLayers.LonLat(lonLatBounds.left,lonLatBounds.bottom);var rightTopLonLat=new OpenLayers.LonLat(lonLatBounds.right,lonLatBounds.top);var leftBottomPx=this.getOverviewPxFromLonLat(leftBottomLonLat);var rightTopPx=this.getOverviewPxFromLonLat(rightTopLonLat);var bounds=null;if(leftBottomPx&&rightTopPx){bounds=new OpenLayers.Bounds(leftBottomPx.x,leftBottomPx.y,rightTopPx.x,rightTopPx.y);}
-return bounds;},getMapBoundsFromRectBounds:function(pxBounds){var leftBottomPx=new OpenLayers.Pixel(pxBounds.left,pxBounds.bottom);var rightTopPx=new OpenLayers.Pixel(pxBounds.right,pxBounds.top);var leftBottomLonLat=this.getLonLatFromOverviewPx(leftBottomPx);var rightTopLonLat=this.getLonLatFromOverviewPx(rightTopPx);return new OpenLayers.Bounds(leftBottomLonLat.lon,leftBottomLonLat.lat,rightTopLonLat.lon,rightTopLonLat.lat);},getLonLatFromOverviewPx:function(overviewMapPx){var size=this.ovmap.size;var res=this.ovmap.getResolution();var center=this.ovmap.getExtent().getCenterLonLat();var delta_x=overviewMapPx.x-(size.w/2);var delta_y=overviewMapPx.y-(size.h/2);return new OpenLayers.LonLat(center.lon+delta_x*res,center.lat-delta_y*res);},getOverviewPxFromLonLat:function(lonlat){var res=this.ovmap.getResolution();var extent=this.ovmap.getExtent();var px=null;if(extent){px=new OpenLayers.Pixel(Math.round(1/res*(lonlat.lon-extent.left)),Math.round(1/res*(extent.top-lonlat.lat)));}
-return px;},CLASS_NAME:'OpenLayers.Control.OverviewMap'});OpenLayers.Handler.Click=OpenLayers.Class(OpenLayers.Handler,{delay:300,single:true,'double':false,pixelTolerance:0,stopSingle:false,stopDouble:false,timerId:null,down:null,initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);if(this.pixelTolerance!=null){this.mousedown=function(evt){this.down=evt.xy;return true;};}},mousedown:null,dblclick:function(evt){if(this.passesTolerance(evt)){if(this["double"]){this.callback('dblclick',[evt]);}
-this.clearTimer();}
-return!this.stopDouble;},click:function(evt){if(this.passesTolerance(evt)){if(this.timerId!=null){this.clearTimer();}else{var clickEvent=this.single?OpenLayers.Util.extend({},evt):null;this.timerId=window.setTimeout(OpenLayers.Function.bind(this.delayedCall,this,clickEvent),this.delay);}}
-return!this.stopSingle;},passesTolerance:function(evt){var passes=true;if(this.pixelTolerance!=null&&this.down){var dpx=Math.sqrt(Math.pow(this.down.x-evt.xy.x,2)+
-Math.pow(this.down.y-evt.xy.y,2));if(dpx>this.pixelTolerance){passes=false;}}
-return passes;},clearTimer:function(){if(this.timerId!=null){window.clearTimeout(this.timerId);this.timerId=null;}},delayedCall:function(evt){this.timerId=null;if(evt){this.callback('click',[evt]);}},deactivate:function(){var deactivated=false;if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){this.clearTimer();this.down=null;deactivated=true;}
-return deactivated;},CLASS_NAME:"OpenLayers.Handler.Click"});OpenLayers.Handler.Drag=OpenLayers.Class(OpenLayers.Handler,{started:false,stopDown:true,dragging:false,last:null,start:null,oldOnselectstart:null,initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);},down:function(evt){},move:function(evt){},up:function(evt){},out:function(evt){},mousedown:function(evt){var propagate=true;this.dragging=false;if(this.checkModifiers(evt)&&OpenLayers.Event.isLeftClick(evt)){this.started=true;this.start=evt.xy;this.last=evt.xy;this.map.div.style.cursor="move";this.down(evt);this.callback("down",[evt.xy]);OpenLayers.Event.stop(evt);if(!this.oldOnselectstart){this.oldOnselectstart=(document.onselectstart)?document.onselectstart:function(){return true;};document.onselectstart=function(){return false;};}
-propagate=!this.stopDown;}else{this.started=false;this.start=null;this.last=null;}
-return propagate;},mousemove:function(evt){if(this.started){if(evt.xy.x!=this.last.x||evt.xy.y!=this.last.y){this.dragging=true;this.move(evt);this.callback("move",[evt.xy]);if(!this.oldOnselectstart){this.oldOnselectstart=document.onselectstart;document.onselectstart=function(){return false;};}
-this.last=evt.xy;}}
-return true;},mouseup:function(evt){if(this.started){var dragged=(this.start!=this.last);this.started=false;this.dragging=false;this.map.div.style.cursor="";this.up(evt);this.callback("up",[evt.xy]);if(dragged){this.callback("done",[evt.xy]);}
-document.onselectstart=this.oldOnselectstart;}
-return true;},mouseout:function(evt){if(this.started&&OpenLayers.Util.mouseLeft(evt,this.map.div)){var dragged=(this.start!=this.last);this.started=false;this.dragging=false;this.map.div.style.cursor="";this.out(evt);this.callback("out",[]);if(dragged){this.callback("done",[evt.xy]);}
-if(document.onselectstart){document.onselectstart=this.oldOnselectstart;}}
-return true;},click:function(evt){return(this.start==this.last);},activate:function(){var activated=false;if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){this.dragging=false;activated=true;}
-return activated;},deactivate:function(){var deactivated=false;if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){this.started=false;this.dragging=false;this.start=null;this.last=null;deactivated=true;}
-return deactivated;},CLASS_NAME:"OpenLayers.Handler.Drag"});OpenLayers.Handler.MouseWheel=OpenLayers.Class(OpenLayers.Handler,{wheelListener:null,mousePosition:null,initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);this.wheelListener=OpenLayers.Function.bindAsEventListener(this.onWheelEvent,this);},destroy:function(){OpenLayers.Handler.prototype.destroy.apply(this,arguments);this.wheelListener=null;},onWheelEvent:function(e){if(!this.map||!this.checkModifiers(e)){return;}
-var overScrollableDiv=false;var overLayerDiv=false;var overMapDiv=false;var elem=OpenLayers.Event.element(e);while((elem!=null)&&!overMapDiv&&!overScrollableDiv){if(!overScrollableDiv){try{if(elem.currentStyle){overflow=elem.currentStyle["overflow"];}else{var style=document.defaultView.getComputedStyle(elem,null);var overflow=style.getPropertyValue("overflow");}
-overScrollableDiv=(overflow&&(overflow=="auto")||(overflow=="scroll"));}catch(err){}}
-if(!overLayerDiv){for(var i=0;i<this.map.layers.length;i++){if(elem==this.map.layers[i].div||elem==this.map.layers[i].pane){overLayerDiv=true;break;}}}
-overMapDiv=(elem==this.map.div);elem=elem.parentNode;}
-if(!overScrollableDiv&&overMapDiv){if(overLayerDiv){this.wheelZoom(e);}
-OpenLayers.Event.stop(e);}},wheelZoom:function(e){var delta=0;if(!e){e=window.event;}
-if(e.wheelDelta){delta=e.wheelDelta/120;if(window.opera&&window.opera.version()<9.2){delta=-delta;}}else if(e.detail){delta=-e.detail/3;}
-if(delta){if(this.mousePosition){e.xy=this.mousePosition;}
-if(!e.xy){e.xy=this.map.getPixelFromLonLat(this.map.getCenter());}
-if(delta<0){this.callback("down",[e,delta]);}else{this.callback("up",[e,delta]);}}},mousemove:function(evt){this.mousePosition=evt.xy;},activate:function(evt){if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){var wheelListener=this.wheelListener;OpenLayers.Event.observe(window,"DOMMouseScroll",wheelListener);OpenLayers.Event.observe(window,"mousewheel",wheelListener);OpenLayers.Event.observe(document,"mousewheel",wheelListener);return true;}else{return false;}},deactivate:function(evt){if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){var wheelListener=this.wheelListener;OpenLayers.Event.stopObserving(window,"DOMMouseScroll",wheelListener);OpenLayers.Event.stopObserving(window,"mousewheel",wheelListener);OpenLayers.Event.stopObserving(document,"mousewheel",wheelListener);return true;}else{return false;}},CLASS_NAME:"OpenLayers.Handler.MouseWheel"});OpenLayers.Layer=OpenLayers.Class({id:null,name:null,div:null,opacity:null,EVENT_TYPES:["loadstart","loadend","loadcancel","visibilitychanged"],events:null,map:null,isBaseLayer:false,alpha:false,displayInLayerSwitcher:true,visibility:true,attribution:null,inRange:false,imageSize:null,imageOffset:null,options:null,eventListeners:null,gutter:0,projection:null,units:null,scales:null,resolutions:null,maxExtent:null,minExtent:null,maxResolution:null,minResolution:null,numZoomLevels:null,minScale:null,maxScale:null,displayOutsideMaxExtent:false,wrapDateLine:false,transitionEffect:null,SUPPORTED_TRANSITIONS:['resize'],initialize:function(name,options){this.addOptions(options);this.name=name;if(this.id==null){this.id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");this.div=OpenLayers.Util.createDiv(this.id);this.div.style.width="100%";this.div.style.height="100%";this.events=new OpenLayers.Events(this,this.div,this.EVENT_TYPES);if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}}
-if(this.wrapDateLine){this.displayOutsideMaxExtent=true;}},destroy:function(setNewBaseLayer){if(setNewBaseLayer==null){setNewBaseLayer=true;}
-if(this.map!=null){this.map.removeLayer(this,setNewBaseLayer);}
-this.projection=null;this.map=null;this.name=null;this.div=null;this.options=null;if(this.events){if(this.eventListeners){this.events.un(this.eventListeners);}
-this.events.destroy();}
-this.eventListeners=null;this.events=null;},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer(this.name,this.options);}
-OpenLayers.Util.applyDefaults(obj,this);obj.map=null;return obj;},setName:function(newName){if(newName!=this.name){this.name=newName;if(this.map!=null){this.map.events.triggerEvent("changelayer",{layer:this,property:"name"});}}},addOptions:function(newOptions){if(this.options==null){this.options={};}
-OpenLayers.Util.extend(this.options,newOptions);OpenLayers.Util.extend(this,newOptions);},onMapResize:function(){},redraw:function(){var redrawn=false;if(this.map){this.inRange=this.calculateInRange();var extent=this.getExtent();if(extent&&this.inRange&&this.visibility){this.moveTo(extent,true,false);redrawn=true;}}
-return redrawn;},moveTo:function(bounds,zoomChanged,dragging){var display=this.visibility;if(!this.isBaseLayer){display=display&&this.inRange;}
-this.display(display);},setMap:function(map){if(this.map==null){this.map=map;this.maxExtent=this.maxExtent||this.map.maxExtent;this.projection=this.projection||this.map.projection;if(this.projection&&typeof this.projection=="string"){this.projection=new OpenLayers.Projection(this.projection);}
-this.units=this.projection.getUnits()||this.units||this.map.units;this.initResolutions();if(!this.isBaseLayer){this.inRange=this.calculateInRange();var show=((this.visibility)&&(this.inRange));this.div.style.display=show?"":"none";}
-this.setTileSize();}},removeMap:function(map){},getImageSize:function(){return(this.imageSize||this.tileSize);},setTileSize:function(size){var tileSize=(size)?size:((this.tileSize)?this.tileSize:this.map.getTileSize());this.tileSize=tileSize;if(this.gutter){this.imageOffset=new OpenLayers.Pixel(-this.gutter,-this.gutter);this.imageSize=new OpenLayers.Size(tileSize.w+(2*this.gutter),tileSize.h+(2*this.gutter));}},getVisibility:function(){return this.visibility;},setVisibility:function(visibility){if(visibility!=this.visibility){this.visibility=visibility;this.display(visibility);this.redraw();if(this.map!=null){this.map.events.triggerEvent("changelayer",{layer:this,property:"visibility"});}
-this.events.triggerEvent("visibilitychanged");}},display:function(display){var inRange=this.calculateInRange();if(display!=(this.div.style.display!="none")){this.div.style.display=(display&&inRange)?"block":"none";}},calculateInRange:function(){var inRange=false;if(this.map){var resolution=this.map.getResolution();inRange=((resolution>=this.minResolution)&&(resolution<=this.maxResolution));}
-return inRange;},setIsBaseLayer:function(isBaseLayer){if(isBaseLayer!=this.isBaseLayer){this.isBaseLayer=isBaseLayer;if(this.map!=null){this.map.events.triggerEvent("changebaselayer",{layer:this});}}},initResolutions:function(){var props=new Array('projection','units','scales','resolutions','maxScale','minScale','maxResolution','minResolution','minExtent','maxExtent','numZoomLevels','maxZoomLevel');var confProps={};for(var i=0;i<props.length;i++){var property=props[i];confProps[property]=this.options[property]||this.map[property];}
-if(this.options.minScale!=null&&this.options.maxScale!=null&&this.options.scales==null){confProps.scales=null;}
-if(this.options.minResolution!=null&&this.options.maxResolution!=null&&this.options.resolutions==null){confProps.resolutions=null;}
-if((!confProps.numZoomLevels)&&(confProps.maxZoomLevel)){confProps.numZoomLevels=confProps.maxZoomLevel+1;}
-if((confProps.scales!=null)||(confProps.resolutions!=null)){if(confProps.scales!=null){confProps.resolutions=[];for(var i=0;i<confProps.scales.length;i++){var scale=confProps.scales[i];confProps.resolutions[i]=OpenLayers.Util.getResolutionFromScale(scale,confProps.units);}}
-confProps.numZoomLevels=confProps.resolutions.length;}else{if(confProps.minScale){confProps.maxResolution=OpenLayers.Util.getResolutionFromScale(confProps.minScale,confProps.units);}else if(confProps.maxResolution=="auto"){var viewSize=this.map.getSize();var wRes=confProps.maxExtent.getWidth()/viewSize.w;var hRes=confProps.maxExtent.getHeight()/viewSize.h;confProps.maxResolution=Math.max(wRes,hRes);}
-if(confProps.maxScale!=null){confProps.minResolution=OpenLayers.Util.getResolutionFromScale(confProps.maxScale,confProps.units);}else if((confProps.minResolution=="auto")&&(confProps.minExtent!=null)){var viewSize=this.map.getSize();var wRes=confProps.minExtent.getWidth()/viewSize.w;var hRes=confProps.minExtent.getHeight()/viewSize.h;confProps.minResolution=Math.max(wRes,hRes);}
-if(confProps.minResolution!=null&&this.options.numZoomLevels==undefined){var ratio=confProps.maxResolution/confProps.minResolution;confProps.numZoomLevels=Math.floor(Math.log(ratio)/Math.log(2))+1;}
-confProps.resolutions=new Array(confProps.numZoomLevels);var base=2;if(typeof confProps.minResolution=="number"&&confProps.numZoomLevels>1){base=Math.pow((confProps.maxResolution/confProps.minResolution),(1/(confProps.numZoomLevels-1)));}
-for(var i=0;i<confProps.numZoomLevels;i++){var res=confProps.maxResolution/Math.pow(base,i);confProps.resolutions[i]=res;}}
-confProps.resolutions.sort(function(a,b){return(b-a);});this.resolutions=confProps.resolutions;this.maxResolution=confProps.resolutions[0];var lastIndex=confProps.resolutions.length-1;this.minResolution=confProps.resolutions[lastIndex];this.scales=[];for(var i=0;i<confProps.resolutions.length;i++){this.scales[i]=OpenLayers.Util.getScaleFromResolution(confProps.resolutions[i],confProps.units);}
-this.minScale=this.scales[0];this.maxScale=this.scales[this.scales.length-1];this.numZoomLevels=confProps.numZoomLevels;},getResolution:function(){var zoom=this.map.getZoom();return this.getResolutionForZoom(zoom);},getExtent:function(){return this.map.calculateBounds();},getZoomForExtent:function(extent,closest){var viewSize=this.map.getSize();var idealResolution=Math.max(extent.getWidth()/viewSize.w,extent.getHeight()/viewSize.h);return this.getZoomForResolution(idealResolution,closest);},getDataExtent:function(){},getResolutionForZoom:function(zoom){zoom=Math.max(0,Math.min(zoom,this.resolutions.length-1));var resolution;if(this.map.fractionalZoom){var low=Math.floor(zoom);var high=Math.ceil(zoom);resolution=this.resolutions[high]+
-((zoom-low)*(this.resolutions[low]-this.resolutions[high]));}else{resolution=this.resolutions[Math.round(zoom)];}
-return resolution;},getZoomForResolution:function(resolution,closest){var zoom;if(this.map.fractionalZoom){var lowZoom=0;var highZoom=this.resolutions.length-1;var highRes=this.resolutions[lowZoom];var lowRes=this.resolutions[highZoom];var res;for(var i=0;i<this.resolutions.length;++i){res=this.resolutions[i];if(res>=resolution){highRes=res;lowZoom=i;}
-if(res<=resolution){lowRes=res;highZoom=i;break;}}
-var dRes=highRes-lowRes;if(dRes>0){zoom=lowZoom+((resolution-lowRes)/dRes);}else{zoom=lowZoom;}}else{var diff;var minDiff=Number.POSITIVE_INFINITY;for(var i=0;i<this.resolutions.length;i++){if(closest){diff=Math.abs(this.resolutions[i]-resolution);if(diff>minDiff){break;}
-minDiff=diff;}else{if(this.resolutions[i]<resolution){break;}}}
-zoom=Math.max(0,i-1);}
-return zoom;},getLonLatFromViewPortPx:function(viewPortPx){var lonlat=null;if(viewPortPx!=null){var size=this.map.getSize();var center=this.map.getCenter();if(center){var res=this.map.getResolution();var delta_x=viewPortPx.x-(size.w/2);var delta_y=viewPortPx.y-(size.h/2);lonlat=new OpenLayers.LonLat(center.lon+delta_x*res,center.lat-delta_y*res);if(this.wrapDateLine){lonlat=lonlat.wrapDateLine(this.maxExtent);}}}
-return lonlat;},getViewPortPxFromLonLat:function(lonlat){var px=null;if(lonlat!=null){var resolution=this.map.getResolution();var extent=this.map.getExtent();px=new OpenLayers.Pixel((1/resolution*(lonlat.lon-extent.left)),(1/resolution*(extent.top-lonlat.lat)));}
-return px;},setOpacity:function(opacity){if(opacity!=this.opacity){this.opacity=opacity;for(var i=0;i<this.div.childNodes.length;++i){var element=this.div.childNodes[i].firstChild;OpenLayers.Util.modifyDOMElement(element,null,null,null,null,null,null,opacity);}}},setZIndex:function(zIndex){this.div.style.zIndex=zIndex;},adjustBounds:function(bounds){if(this.gutter){var mapGutter=this.gutter*this.map.getResolution();bounds=new OpenLayers.Bounds(bounds.left-mapGutter,bounds.bottom-mapGutter,bounds.right+mapGutter,bounds.top+mapGutter);}
-if(this.wrapDateLine){var wrappingOptions={'rightTolerance':this.getResolution()};bounds=bounds.wrapDateLine(this.maxExtent,wrappingOptions);}
-return bounds;},CLASS_NAME:"OpenLayers.Layer"});OpenLayers.Marker.Box=OpenLayers.Class(OpenLayers.Marker,{bounds:null,div:null,initialize:function(bounds,borderColor,borderWidth){this.bounds=bounds;this.div=OpenLayers.Util.createDiv();this.div.style.overflow='hidden';this.events=new OpenLayers.Events(this,this.div,null);this.setBorder(borderColor,borderWidth);},destroy:function(){this.bounds=null;this.div=null;OpenLayers.Marker.prototype.destroy.apply(this,arguments);},setBorder:function(color,width){if(!color){color="red";}
-if(!width){width=2;}
-this.div.style.border=width+"px solid "+color;},draw:function(px,sz){OpenLayers.Util.modifyDOMElement(this.div,null,px,sz);return this.div;},onScreen:function(){var onScreen=false;if(this.map){var screenBounds=this.map.getExtent();onScreen=screenBounds.containsBounds(this.bounds,true,true);}
-return onScreen;},display:function(display){this.div.style.display=(display)?"":"none";},CLASS_NAME:"OpenLayers.Marker.Box"});OpenLayers.Control.DragPan=OpenLayers.Class(OpenLayers.Control,{type:OpenLayers.Control.TYPE_TOOL,panned:false,draw:function(){this.handler=new OpenLayers.Handler.Drag(this,{"move":this.panMap,"done":this.panMapDone});},panMap:function(xy){this.panned=true;this.map.pan(this.handler.last.x-xy.x,this.handler.last.y-xy.y,{dragging:this.handler.dragging,animate:false});},panMapDone:function(xy){if(this.panned){this.panMap(xy);this.panned=false;}},CLASS_NAME:"OpenLayers.Control.DragPan"});OpenLayers.Handler.Box=OpenLayers.Class(OpenLayers.Handler,{dragHandler:null,boxDivClassName:'olHandlerBoxZoomBox',initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);var callbacks={"down":this.startBox,"move":this.moveBox,"out":this.removeBox,"up":this.endBox};this.dragHandler=new OpenLayers.Handler.Drag(this,callbacks,{keyMask:this.keyMask});},setMap:function(map){OpenLayers.Handler.prototype.setMap.apply(this,arguments);if(this.dragHandler){this.dragHandler.setMap(map);}},startBox:function(xy){this.zoomBox=OpenLayers.Util.createDiv('zoomBox',this.dragHandler.start);this.zoomBox.className=this.boxDivClassName;this.zoomBox.style.zIndex=this.map.Z_INDEX_BASE["Popup"]-1;this.map.viewPortDiv.appendChild(this.zoomBox);this.map.div.style.cursor="crosshair";},moveBox:function(xy){var deltaX=Math.abs(this.dragHandler.start.x-xy.x);var deltaY=Math.abs(this.dragHandler.start.y-xy.y);this.zoomBox.style.width=Math.max(1,deltaX)+"px";this.zoomBox.style.height=Math.max(1,deltaY)+"px";if(xy.x<this.dragHandler.start.x){this.zoomBox.style.left=xy.x+"px";}
-if(xy.y<this.dragHandler.start.y){this.zoomBox.style.top=xy.y+"px";}},endBox:function(end){var result;if(Math.abs(this.dragHandler.start.x-end.x)>5||Math.abs(this.dragHandler.start.y-end.y)>5){var start=this.dragHandler.start;var top=Math.min(start.y,end.y);var bottom=Math.max(start.y,end.y);var left=Math.min(start.x,end.x);var right=Math.max(start.x,end.x);result=new OpenLayers.Bounds(left,bottom,right,top);}else{result=this.dragHandler.start.clone();}
-this.removeBox();this.map.div.style.cursor="";this.callback("done",[result]);},removeBox:function(){this.map.viewPortDiv.removeChild(this.zoomBox);this.zoomBox=null;},activate:function(){if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){this.dragHandler.activate();return true;}else{return false;}},deactivate:function(){if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){this.dragHandler.deactivate();return true;}else{return false;}},CLASS_NAME:"OpenLayers.Handler.Box"});OpenLayers.Layer.HTTPRequest=OpenLayers.Class(OpenLayers.Layer,{URL_HASH_FACTOR:(Math.sqrt(5)-1)/2,url:null,params:null,reproject:false,initialize:function(name,url,params,options){var newArguments=arguments;newArguments=[name,options];OpenLayers.Layer.prototype.initialize.apply(this,newArguments);this.url=url;this.params=OpenLayers.Util.extend({},params);},destroy:function(){this.url=null;this.params=null;OpenLayers.Layer.prototype.destroy.apply(this,arguments);},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.HTTPRequest(this.name,this.url,this.params,this.options);}
-obj=OpenLayers.Layer.prototype.clone.apply(this,[obj]);return obj;},setUrl:function(newUrl){this.url=newUrl;},mergeNewParams:function(newParams){this.params=OpenLayers.Util.extend(this.params,newParams);return this.redraw();},redraw:function(force){if(force){return this.mergeNewParams({"_olSalt":Math.random()});}else{return OpenLayers.Layer.prototype.redraw.apply(this,[]);}},selectUrl:function(paramString,urls){var product=1;for(var i=0;i<paramString.length;i++){product*=paramString.charCodeAt(i)*this.URL_HASH_FACTOR;product-=Math.floor(product);}
-return urls[Math.floor(product*urls.length)];},getFullRequestString:function(newParams,altUrl){var url=altUrl||this.url;var allParams=OpenLayers.Util.extend({},this.params);allParams=OpenLayers.Util.extend(allParams,newParams);var paramsString=OpenLayers.Util.getParameterString(allParams);if(url instanceof Array){url=this.selectUrl(paramsString,url);}
-var urlParams=OpenLayers.Util.upperCaseObject(OpenLayers.Util.getParameters(url));for(var key in allParams){if(key.toUpperCase()in urlParams){delete allParams[key];}}
-paramsString=OpenLayers.Util.getParameterString(allParams);var requestString=url;if(paramsString!=""){var lastServerChar=url.charAt(url.length-1);if((lastServerChar=="&")||(lastServerChar=="?")){requestString+=paramsString;}else{if(url.indexOf('?')==-1){requestString+='?'+paramsString;}else{requestString+='&'+paramsString;}}}
-return requestString;},CLASS_NAME:"OpenLayers.Layer.HTTPRequest"});OpenLayers.Control.ZoomBox=OpenLayers.Class(OpenLayers.Control,{type:OpenLayers.Control.TYPE_TOOL,out:false,draw:function(){this.handler=new OpenLayers.Handler.Box(this,{done:this.zoomBox},{keyMask:this.keyMask});},zoomBox:function(position){if(position instanceof OpenLayers.Bounds){if(!this.out){var minXY=this.map.getLonLatFromPixel(new OpenLayers.Pixel(position.left,position.bottom));var maxXY=this.map.getLonLatFromPixel(new OpenLayers.Pixel(position.right,position.top));var bounds=new OpenLayers.Bounds(minXY.lon,minXY.lat,maxXY.lon,maxXY.lat);}else{var pixWidth=Math.abs(position.right-position.left);var pixHeight=Math.abs(position.top-position.bottom);var zoomFactor=Math.min((this.map.size.h/pixHeight),(this.map.size.w/pixWidth));var extent=this.map.getExtent();var center=this.map.getLonLatFromPixel(position.getCenterPixel());var xmin=center.lon-(extent.getWidth()/2)*zoomFactor;var xmax=center.lon+(extent.getWidth()/2)*zoomFactor;var ymin=center.lat-(extent.getHeight()/2)*zoomFactor;var ymax=center.lat+(extent.getHeight()/2)*zoomFactor;var bounds=new OpenLayers.Bounds(xmin,ymin,xmax,ymax);}
-this.map.zoomToExtent(bounds);}else{if(!this.out){this.map.setCenter(this.map.getLonLatFromPixel(position),this.map.getZoom()+1);}else{this.map.setCenter(this.map.getLonLatFromPixel(position),this.map.getZoom()-1);}}},CLASS_NAME:"OpenLayers.Control.ZoomBox"});OpenLayers.Layer.Grid=OpenLayers.Class(OpenLayers.Layer.HTTPRequest,{tileSize:null,grid:null,singleTile:false,ratio:1.5,buffer:2,numLoadingTiles:0,initialize:function(name,url,params,options){OpenLayers.Layer.HTTPRequest.prototype.initialize.apply(this,arguments);this.events.addEventType("tileloaded");this.grid=[];},destroy:function(){this.clearGrid();this.grid=null;this.tileSize=null;OpenLayers.Layer.HTTPRequest.prototype.destroy.apply(this,arguments);},clearGrid:function(){if(this.grid){for(var iRow=0;iRow<this.grid.length;iRow++){var row=this.grid[iRow];for(var iCol=0;iCol<row.length;iCol++){var tile=row[iCol];this.removeTileMonitoringHooks(tile);tile.destroy();}}
-this.grid=[];}},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.Grid(this.name,this.url,this.params,this.options);}
-obj=OpenLayers.Layer.HTTPRequest.prototype.clone.apply(this,[obj]);if(this.tileSize!=null){obj.tileSize=this.tileSize.clone();}
-obj.grid=[];return obj;},moveTo:function(bounds,zoomChanged,dragging){OpenLayers.Layer.HTTPRequest.prototype.moveTo.apply(this,arguments);bounds=bounds||this.map.getExtent();if(bounds!=null){var forceReTile=!this.grid.length||zoomChanged;var tilesBounds=this.getTilesBounds();if(this.singleTile){if(forceReTile||(!dragging&&!tilesBounds.containsBounds(bounds))){this.initSingleTile(bounds);}}else{if(forceReTile||!tilesBounds.containsBounds(bounds,true)){this.initGriddedTiles(bounds);}else{this.moveGriddedTiles(bounds);}}}},setTileSize:function(size){if(this.singleTile){size=this.map.getSize().clone();size.h=parseInt(size.h*this.ratio);size.w=parseInt(size.w*this.ratio);}
-OpenLayers.Layer.HTTPRequest.prototype.setTileSize.apply(this,[size]);},getGridBounds:function(){var msg="The getGridBounds() function is deprecated. It will be "+"removed in 3.0. Please use getTilesBounds() instead.";OpenLayers.Console.warn(msg);return this.getTilesBounds();},getTilesBounds:function(){var bounds=null;if(this.grid.length){var bottom=this.grid.length-1;var bottomLeftTile=this.grid[bottom][0];var right=this.grid[0].length-1;var topRightTile=this.grid[0][right];bounds=new OpenLayers.Bounds(bottomLeftTile.bounds.left,bottomLeftTile.bounds.bottom,topRightTile.bounds.right,topRightTile.bounds.top);}
-return bounds;},initSingleTile:function(bounds){var center=bounds.getCenterLonLat();var tileWidth=bounds.getWidth()*this.ratio;var tileHeight=bounds.getHeight()*this.ratio;var tileBounds=new OpenLayers.Bounds(center.lon-(tileWidth/2),center.lat-(tileHeight/2),center.lon+(tileWidth/2),center.lat+(tileHeight/2));var ul=new OpenLayers.LonLat(tileBounds.left,tileBounds.top);var px=this.map.getLayerPxFromLonLat(ul);if(!this.grid.length){this.grid[0]=[];}
-var tile=this.grid[0][0];if(!tile){tile=this.addTile(tileBounds,px);this.addTileMonitoringHooks(tile);tile.draw();this.grid[0][0]=tile;}else{tile.moveTo(tileBounds,px);}
-this.removeExcessTiles(1,1);},calculateGridLayout:function(bounds,extent,resolution){var tilelon=resolution*this.tileSize.w;var tilelat=resolution*this.tileSize.h;var offsetlon=bounds.left-extent.left;var tilecol=Math.floor(offsetlon/tilelon)-this.buffer;var tilecolremain=offsetlon/tilelon-tilecol;var tileoffsetx=-tilecolremain*this.tileSize.w;var tileoffsetlon=extent.left+tilecol*tilelon;var offsetlat=bounds.top-(extent.bottom+tilelat);var tilerow=Math.ceil(offsetlat/tilelat)+this.buffer;var tilerowremain=tilerow-offsetlat/tilelat;var tileoffsety=-tilerowremain*this.tileSize.h;var tileoffsetlat=extent.bottom+tilerow*tilelat;return{tilelon:tilelon,tilelat:tilelat,tileoffsetlon:tileoffsetlon,tileoffsetlat:tileoffsetlat,tileoffsetx:tileoffsetx,tileoffsety:tileoffsety};},initGriddedTiles:function(bounds){var viewSize=this.map.getSize();var minRows=Math.ceil(viewSize.h/this.tileSize.h)+
-Math.max(1,2*this.buffer);var minCols=Math.ceil(viewSize.w/this.tileSize.w)+
-Math.max(1,2*this.buffer);var extent=this.map.getMaxExtent();var resolution=this.map.getResolution();var tileLayout=this.calculateGridLayout(bounds,extent,resolution);var tileoffsetx=Math.round(tileLayout.tileoffsetx);var tileoffsety=Math.round(tileLayout.tileoffsety);var tileoffsetlon=tileLayout.tileoffsetlon;var tileoffsetlat=tileLayout.tileoffsetlat;var tilelon=tileLayout.tilelon;var tilelat=tileLayout.tilelat;this.origin=new OpenLayers.Pixel(tileoffsetx,tileoffsety);var startX=tileoffsetx;var startLon=tileoffsetlon;var rowidx=0;var layerContainerDivLeft=parseInt(this.map.layerContainerDiv.style.left);var layerContainerDivTop=parseInt(this.map.layerContainerDiv.style.top);do{var row=this.grid[rowidx++];if(!row){row=[];this.grid.push(row);}
-tileoffsetlon=startLon;tileoffsetx=startX;var colidx=0;do{var tileBounds=new OpenLayers.Bounds(tileoffsetlon,tileoffsetlat,tileoffsetlon+tilelon,tileoffsetlat+tilelat);var x=tileoffsetx;x-=layerContainerDivLeft;var y=tileoffsety;y-=layerContainerDivTop;var px=new OpenLayers.Pixel(x,y);var tile=row[colidx++];if(!tile){tile=this.addTile(tileBounds,px);this.addTileMonitoringHooks(tile);row.push(tile);}else{tile.moveTo(tileBounds,px,false);}
-tileoffsetlon+=tilelon;tileoffsetx+=this.tileSize.w;}while((tileoffsetlon<=bounds.right+tilelon*this.buffer)||colidx<minCols)
-tileoffsetlat-=tilelat;tileoffsety+=this.tileSize.h;}while((tileoffsetlat>=bounds.bottom-tilelat*this.buffer)||rowidx<minRows)
-this.removeExcessTiles(rowidx,colidx);this.spiralTileLoad();},spiralTileLoad:function(){var tileQueue=[];var directions=["right","down","left","up"];var iRow=0;var iCell=-1;var direction=OpenLayers.Util.indexOf(directions,"right");var directionsTried=0;while(directionsTried<directions.length){var testRow=iRow;var testCell=iCell;switch(directions[direction]){case"right":testCell++;break;case"down":testRow++;break;case"left":testCell--;break;case"up":testRow--;break;}
-var tile=null;if((testRow<this.grid.length)&&(testRow>=0)&&(testCell<this.grid[0].length)&&(testCell>=0)){tile=this.grid[testRow][testCell];}
-if((tile!=null)&&(!tile.queued)){tileQueue.unshift(tile);tile.queued=true;directionsTried=0;iRow=testRow;iCell=testCell;}else{direction=(direction+1)%4;directionsTried++;}}
-for(var i=0;i<tileQueue.length;i++){var tile=tileQueue[i];tile.draw();tile.queued=false;}},addTile:function(bounds,position){},addTileMonitoringHooks:function(tile){tile.onLoadStart=function(){if(this.numLoadingTiles==0){this.events.triggerEvent("loadstart");}
-this.numLoadingTiles++;};tile.events.register("loadstart",this,tile.onLoadStart);tile.onLoadEnd=function(){this.numLoadingTiles--;this.events.triggerEvent("tileloaded");if(this.numLoadingTiles==0){this.events.triggerEvent("loadend");}};tile.events.register("loadend",this,tile.onLoadEnd);tile.events.register("unload",this,tile.onLoadEnd);},removeTileMonitoringHooks:function(tile){tile.unload();tile.events.un({"loadstart":tile.onLoadStart,"loadend":tile.onLoadEnd,"unload":tile.onLoadEnd,scope:this});},moveGriddedTiles:function(bounds){var buffer=this.buffer||1;while(true){var tlLayer=this.grid[0][0].position;var tlViewPort=this.map.getViewPortPxFromLayerPx(tlLayer);if(tlViewPort.x>-this.tileSize.w*(buffer-1)){this.shiftColumn(true);}else if(tlViewPort.x<-this.tileSize.w*buffer){this.shiftColumn(false);}else if(tlViewPort.y>-this.tileSize.h*(buffer-1)){this.shiftRow(true);}else if(tlViewPort.y<-this.tileSize.h*buffer){this.shiftRow(false);}else{break;}};},shiftRow:function(prepend){var modelRowIndex=(prepend)?0:(this.grid.length-1);var grid=this.grid;var modelRow=grid[modelRowIndex];var resolution=this.map.getResolution();var deltaY=(prepend)?-this.tileSize.h:this.tileSize.h;var deltaLat=resolution*-deltaY;var row=(prepend)?grid.pop():grid.shift();for(var i=0;i<modelRow.length;i++){var modelTile=modelRow[i];var bounds=modelTile.bounds.clone();var position=modelTile.position.clone();bounds.bottom=bounds.bottom+deltaLat;bounds.top=bounds.top+deltaLat;position.y=position.y+deltaY;row[i].moveTo(bounds,position);}
-if(prepend){grid.unshift(row);}else{grid.push(row);}},shiftColumn:function(prepend){var deltaX=(prepend)?-this.tileSize.w:this.tileSize.w;var resolution=this.map.getResolution();var deltaLon=resolution*deltaX;for(var i=0;i<this.grid.length;i++){var row=this.grid[i];var modelTileIndex=(prepend)?0:(row.length-1);var modelTile=row[modelTileIndex];var bounds=modelTile.bounds.clone();var position=modelTile.position.clone();bounds.left=bounds.left+deltaLon;bounds.right=bounds.right+deltaLon;position.x=position.x+deltaX;var tile=prepend?this.grid[i].pop():this.grid[i].shift();tile.moveTo(bounds,position);if(prepend){row.unshift(tile);}else{row.push(tile);}}},removeExcessTiles:function(rows,columns){while(this.grid.length>rows){var row=this.grid.pop();for(var i=0,l=row.length;i<l;i++){var tile=row[i];this.removeTileMonitoringHooks(tile);tile.destroy();}}
-while(this.grid[0].length>columns){for(var i=0,l=this.grid.length;i<l;i++){var row=this.grid[i];var tile=row.pop();this.removeTileMonitoringHooks(tile);tile.destroy();}}},onMapResize:function(){if(this.singleTile){this.clearGrid();this.setTileSize();}},getTileBounds:function(viewPortPx){var maxExtent=this.map.getMaxExtent();var resolution=this.getResolution();var tileMapWidth=resolution*this.tileSize.w;var tileMapHeight=resolution*this.tileSize.h;var mapPoint=this.getLonLatFromViewPortPx(viewPortPx);var tileLeft=maxExtent.left+(tileMapWidth*Math.floor((mapPoint.lon-
-maxExtent.left)/tileMapWidth));var tileBottom=maxExtent.bottom+(tileMapHeight*Math.floor((mapPoint.lat-
-maxExtent.bottom)/tileMapHeight));return new OpenLayers.Bounds(tileLeft,tileBottom,tileLeft+tileMapWidth,tileBottom+tileMapHeight);},CLASS_NAME:"OpenLayers.Layer.Grid"});OpenLayers.Control.Navigation=OpenLayers.Class(OpenLayers.Control,{dragPan:null,zoomBox:null,zoomWheelEnabled:true,initialize:function(options){this.handlers={};OpenLayers.Control.prototype.initialize.apply(this,arguments);},destroy:function(){this.deactivate();if(this.dragPan){this.dragPan.destroy();}
-this.dragPan=null;if(this.zoomBox){this.zoomBox.destroy();}
-this.zoomBox=null;OpenLayers.Control.prototype.destroy.apply(this,arguments);},activate:function(){this.dragPan.activate();if(this.zoomWheelEnabled){this.handlers.wheel.activate();}
-this.handlers.click.activate();this.zoomBox.activate();return OpenLayers.Control.prototype.activate.apply(this,arguments);},deactivate:function(){this.zoomBox.deactivate();this.dragPan.deactivate();this.handlers.click.deactivate();this.handlers.wheel.deactivate();return OpenLayers.Control.prototype.deactivate.apply(this,arguments);},draw:function(){this.handlers.click=new OpenLayers.Handler.Click(this,{'dblclick':this.defaultDblClick},{'double':true,'stopDouble':true});this.dragPan=new OpenLayers.Control.DragPan({map:this.map});this.zoomBox=new OpenLayers.Control.ZoomBox({map:this.map,keyMask:OpenLayers.Handler.MOD_SHIFT});this.dragPan.draw();this.zoomBox.draw();this.handlers.wheel=new OpenLayers.Handler.MouseWheel(this,{"up":this.wheelUp,"down":this.wheelDown});this.activate();},defaultDblClick:function(evt){var newCenter=this.map.getLonLatFromViewPortPx(evt.xy);this.map.setCenter(newCenter,this.map.zoom+1);},wheelChange:function(evt,deltaZ){var newZoom=this.map.getZoom()+deltaZ;if(!this.map.isValidZoomLevel(newZoom)){return;}
-var size=this.map.getSize();var deltaX=size.w/2-evt.xy.x;var deltaY=evt.xy.y-size.h/2;var newRes=this.map.baseLayer.getResolutionForZoom(newZoom);var zoomPoint=this.map.getLonLatFromPixel(evt.xy);var newCenter=new OpenLayers.LonLat(zoomPoint.lon+deltaX*newRes,zoomPoint.lat+deltaY*newRes);this.map.setCenter(newCenter,newZoom);},wheelUp:function(evt){this.wheelChange(evt,1);},wheelDown:function(evt){this.wheelChange(evt,-1);},disableZoomWheel:function(){this.zoomWheelEnabled=false;this.handlers.wheel.deactivate();},enableZoomWheel:function(){this.zoomWheelEnabled=true;if(this.active){this.handlers.wheel.activate();}},CLASS_NAME:"OpenLayers.Control.Navigation"});OpenLayers.Layer.MapGuide=OpenLayers.Class(OpenLayers.Layer.Grid,{isBaseLayer:true,singleTile:false,TILE_PARAMS:{operation:'GETTILEIMAGE',version:'1.2.0'},SINGLE_TILE_PARAMS:{operation:'GETMAPIMAGE',format:'PNG',locale:'en',clip:'1',version:'1.0.0'},defaultSize:new OpenLayers.Size(300,300),initialize:function(name,url,params,options){OpenLayers.Layer.Grid.prototype.initialize.apply(this,arguments);if(options==null||options.isBaseLayer==null){this.isBaseLayer=((this.transparent!="true")&&(this.transparent!=true));}
-if(this.singleTile){OpenLayers.Util.applyDefaults(this.params,this.SINGLE_TILE_PARAMS);}else{OpenLayers.Util.applyDefaults(this.params,this.TILE_PARAMS);this.setTileSize(this.defaultSize);}},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.MapGuide(this.name,this.url,this.params,this.options);}
-obj=OpenLayers.Layer.Grid.prototype.clone.apply(this,[obj]);return obj;},addTile:function(bounds,position){return new OpenLayers.Tile.Image(this,position,bounds,null,this.tileSize);},getURL:function(bounds){var url;var center=bounds.getCenterLonLat();var mapSize=this.map.getCurrentSize();if(this.singleTile){var params={};params.setdisplaydpi=OpenLayers.DOTS_PER_INCH;params.setdisplayheight=mapSize.h*this.ratio;params.setdisplaywidth=mapSize.w*this.ratio;params.setviewcenterx=center.lon;params.setviewcentery=center.lat;params.setviewscale=this.map.getScale();if(!this.isBaseLayer){this.params.operation="GETDYNAMICMAPOVERLAYIMAGE";var getVisParams={};getVisParams.operation="GETVISIBLEMAPEXTENT";getVisParams.version="1.0.0";getVisParams.session=this.params.session;getVisParams.mapName=this.params.mapName;getVisParams.format='text/xml';getVisParams=OpenLayers.Util.extend(getVisParams,params);new OpenLayers.Ajax.Request(this.url,{parameters:getVisParams,method:'get',asynchronous:false});}
-url=this.getFullRequestString(params);}else{var currentRes=this.map.getResolution();var colidx=Math.floor((bounds.left-this.maxExtent.left)/currentRes);colidx=Math.round(colidx/this.tileSize.w);var rowidx=Math.floor((this.maxExtent.top-bounds.top)/currentRes);rowidx=Math.round(rowidx/this.tileSize.h);url=this.getFullRequestString({tilecol:colidx,tilerow:rowidx,scaleindex:this.resolutions.length-this.map.zoom-1});}
-return url;},getFullRequestString:function(newParams,altUrl){var url=(altUrl==null)?this.url:altUrl;if(typeof url=="object"){url=url[Math.floor(Math.random()*url.length)];}
-var requestString=url;var allParams=OpenLayers.Util.extend({},this.params);allParams=OpenLayers.Util.extend(allParams,newParams);var urlParams=OpenLayers.Util.upperCaseObject(OpenLayers.Util.getArgs(url));for(var key in allParams){if(key.toUpperCase()in urlParams){delete allParams[key];}}
-var paramsString=OpenLayers.Util.getParameterString(allParams);paramsString=paramsString.replace(/,/g,"+");if(paramsString!=""){var lastServerChar=url.charAt(url.length-1);if((lastServerChar=="&")||(lastServerChar=="?")){requestString+=paramsString;}else{if(url.indexOf('?')==-1){requestString+='?'+paramsString;}else{requestString+='&'+paramsString;}}}
-return requestString;},calculateGridLayout:function(bounds,extent,resolution){var tilelon=resolution*this.tileSize.w;var tilelat=resolution*this.tileSize.h;var offsetlon=bounds.left-extent.left;var tilecol=Math.floor(offsetlon/tilelon)-this.buffer;var tilecolremain=offsetlon/tilelon-tilecol;var tileoffsetx=-tilecolremain*this.tileSize.w;var tileoffsetlon=extent.left+tilecol*tilelon;var offsetlat=extent.top-bounds.top+tilelat;var tilerow=Math.floor(offsetlat/tilelat)-this.buffer;var tilerowremain=tilerow-offsetlat/tilelat;var tileoffsety=tilerowremain*this.tileSize.h;var tileoffsetlat=extent.top-tilelat*tilerow;return{tilelon:tilelon,tilelat:tilelat,tileoffsetlon:tileoffsetlon,tileoffsetlat:tileoffsetlat,tileoffsetx:tileoffsetx,tileoffsety:tileoffsety};},CLASS_NAME:"OpenLayers.Layer.MapGuide"});OpenLayers.Layer.MapServer=OpenLayers.Class(OpenLayers.Layer.Grid,{DEFAULT_PARAMS:{mode:"map",map_imagetype:"png"},initialize:function(name,url,params,options){var newArguments=[];newArguments.push(name,url,params,options);OpenLayers.Layer.Grid.prototype.initialize.apply(this,newArguments);if(arguments.length>0){OpenLayers.Util.applyDefaults(this.params,this.DEFAULT_PARAMS);}
-if(options==null||options.isBaseLayer==null){this.isBaseLayer=((this.params.transparent!="true")&&(this.params.transparent!=true));}},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.MapServer(this.name,this.url,this.params,this.options);}
-obj=OpenLayers.Layer.Grid.prototype.clone.apply(this,[obj]);return obj;},addTile:function(bounds,position){return new OpenLayers.Tile.Image(this,position,bounds,null,this.tileSize);},getURL:function(bounds){bounds=this.adjustBounds(bounds);var extent=[bounds.left,bounds.bottom,bounds.right,bounds.top];var imageSize=this.getImageSize();var url=this.getFullRequestString({mapext:extent,imgext:extent,map_size:[imageSize.w,imageSize.h],imgx:imageSize.w/2,imgy:imageSize.h/2,imgxy:[imageSize.w,imageSize.h]});return url;},getFullRequestString:function(newParams,altUrl){var url=(altUrl==null)?this.url:altUrl;var allParams=OpenLayers.Util.extend({},this.params);allParams=OpenLayers.Util.extend(allParams,newParams);var paramsString=OpenLayers.Util.getParameterString(allParams);if(url instanceof Array){url=this.selectUrl(paramsString,url);}
-var urlParams=OpenLayers.Util.upperCaseObject(OpenLayers.Util.getParameters(url));for(var key in allParams){if(key.toUpperCase()in urlParams){delete allParams[key];}}
-paramsString=OpenLayers.Util.getParameterString(allParams);var requestString=url;paramsString=paramsString.replace(/,/g,"+");if(paramsString!=""){var lastServerChar=url.charAt(url.length-1);if((lastServerChar=="&")||(lastServerChar=="?")){requestString+=paramsString;}else{if(url.indexOf('?')==-1){requestString+='?'+paramsString;}else{requestString+='&'+paramsString;}}}
-return requestString;},CLASS_NAME:"OpenLayers.Layer.MapServer"});OpenLayers.Layer.WMS=OpenLayers.Class(OpenLayers.Layer.Grid,{DEFAULT_PARAMS:{service:"WMS",version:"1.1.1",request:"GetMap",styles:"",exceptions:"application/vnd.ogc.se_inimage",format:"image/jpeg"},reproject:false,isBaseLayer:true,encodeBBOX:false,initialize:function(name,url,params,options){var newArguments=[];params=OpenLayers.Util.upperCaseObject(params);newArguments.push(name,url,params,options);OpenLayers.Layer.Grid.prototype.initialize.apply(this,newArguments);OpenLayers.Util.applyDefaults(this.params,OpenLayers.Util.upperCaseObject(this.DEFAULT_PARAMS));if(this.params.TRANSPARENT&&this.params.TRANSPARENT.toString().toLowerCase()=="true"){if((options==null)||(!options.isBaseLayer)){this.isBaseLayer=false;}
-if(this.params.FORMAT=="image/jpeg"){this.params.FORMAT=OpenLayers.Util.alphaHack()?"image/gif":"image/png";}}},destroy:function(){OpenLayers.Layer.Grid.prototype.destroy.apply(this,arguments);},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.WMS(this.name,this.url,this.params,this.options);}
-obj=OpenLayers.Layer.Grid.prototype.clone.apply(this,[obj]);return obj;},getURL:function(bounds){bounds=this.adjustBounds(bounds);var imageSize=this.getImageSize();var newParams={'BBOX':this.encodeBBOX?bounds.toBBOX():bounds.toArray(),'WIDTH':imageSize.w,'HEIGHT':imageSize.h};var requestString=this.getFullRequestString(newParams);return requestString;},addTile:function(bounds,position){return new OpenLayers.Tile.Image(this,position,bounds,null,this.tileSize);},mergeNewParams:function(newParams){var upperParams=OpenLayers.Util.upperCaseObject(newParams);var newArguments=[upperParams];return OpenLayers.Layer.Grid.prototype.mergeNewParams.apply(this,newArguments);},getFullRequestString:function(newParams,altUrl){var projectionCode=this.map.getProjection();this.params.SRS=(projectionCode=="none")?null:projectionCode;return OpenLayers.Layer.Grid.prototype.getFullRequestString.apply(this,arguments);},CLASS_NAME:"OpenLayers.Layer.WMS"});
\ No newline at end of file
+/* ======================================================================
+    OpenLayers/SingleFile.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+var OpenLayers = {
+    singleFile: true
+};
+
+
+/* ======================================================================
+    OpenLayers.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/* 
+ * @requires OpenLayers/BaseTypes.js
+ * @requires OpenLayers/Lang/en.js
+ */ 
+
+(function() {
+    /**
+     * Before creating the OpenLayers namespace, check to see if
+     * OpenLayers.singleFile is true.  This occurs if the
+     * OpenLayers/SingleFile.js script is included before this one - as is the
+     * case with single file builds.
+     */
+    var singleFile = (typeof OpenLayers == "object" && OpenLayers.singleFile);
+    
+    /**
+     * Namespace: OpenLayers
+     * The OpenLayers object provides a namespace for all things OpenLayers
+     */
+    window.OpenLayers = {
+        
+        /**
+         * Property: _scriptName
+         * {String} Relative path of this script.
+         */
+        _scriptName: (!singleFile) ? "lib/OpenLayers.js" : "OpenLayers.js",
+
+        /**
+         * Function: _getScriptLocation
+         * Return the path to this script.
+         *
+         * Returns:
+         * {String} Path to this script
+         */
+        _getScriptLocation: function () {
+            var scriptLocation = "";
+            var scriptName = OpenLayers._scriptName;
+         
+            var scripts = document.getElementsByTagName('script');
+            for (var i = 0; i < scripts.length; i++) {
+                var src = scripts[i].getAttribute('src');
+                if (src) {
+                    var index = src.lastIndexOf(scriptName); 
+                    // set path length for src up to a query string
+                    var pathLength = src.lastIndexOf('?');
+                    if (pathLength < 0) {
+                        pathLength = src.length;
+                    }
+                    // is it found, at the end of the URL?
+                    if ((index > -1) && (index + scriptName.length == pathLength)) {
+                        scriptLocation = src.slice(0, pathLength - scriptName.length);
+                        break;
+                    }
+                }
+            }
+            return scriptLocation;
+         }
+    };
+    /**
+     * OpenLayers.singleFile is a flag indicating this file is being included
+     * in a Single File Library build of the OpenLayers Library.
+     * 
+     * When we are *not* part of a SFL build we dynamically include the
+     * OpenLayers library code.
+     * 
+     * When we *are* part of a SFL build we do not dynamically include the 
+     * OpenLayers library code as it will be appended at the end of this file.
+      */
+    if(!singleFile) {
+        var jsfiles = new Array(
+            "OpenLayers/Util.js",
+            "OpenLayers/BaseTypes.js",
+            "OpenLayers/BaseTypes/Class.js",
+            "OpenLayers/BaseTypes/Bounds.js",
+            "OpenLayers/BaseTypes/Element.js",
+            "OpenLayers/BaseTypes/LonLat.js",
+            "OpenLayers/BaseTypes/Pixel.js",
+            "OpenLayers/BaseTypes/Size.js",
+            "OpenLayers/Console.js",
+            "OpenLayers/Tween.js",
+            "Rico/Corner.js",
+            "Rico/Color.js",
+            "OpenLayers/Ajax.js",
+            "OpenLayers/Events.js",
+            "OpenLayers/Projection.js",
+            "OpenLayers/Map.js",
+            "OpenLayers/Layer.js",
+            "OpenLayers/Icon.js",
+            "OpenLayers/Marker.js",
+            "OpenLayers/Marker/Box.js",
+            "OpenLayers/Popup.js",
+            "OpenLayers/Tile.js",
+            "OpenLayers/Tile/Image.js",
+            "OpenLayers/Tile/WFS.js",
+            "OpenLayers/Layer/Image.js",
+            "OpenLayers/Layer/SphericalMercator.js",
+            "OpenLayers/Layer/EventPane.js",
+            "OpenLayers/Layer/FixedZoomLevels.js",
+            "OpenLayers/Layer/Google.js",
+            "OpenLayers/Layer/VirtualEarth.js",
+            "OpenLayers/Layer/Yahoo.js",
+            "OpenLayers/Layer/HTTPRequest.js",
+            "OpenLayers/Layer/Grid.js",
+            "OpenLayers/Layer/MapGuide.js",
+            "OpenLayers/Layer/MapServer.js",
+            "OpenLayers/Layer/MapServer/Untiled.js",
+            "OpenLayers/Layer/KaMap.js",
+            "OpenLayers/Layer/MultiMap.js",
+            "OpenLayers/Layer/Markers.js",
+            "OpenLayers/Layer/Text.js",
+            "OpenLayers/Layer/WorldWind.js",
+            "OpenLayers/Layer/WMS.js",
+            "OpenLayers/Layer/WMS/Untiled.js",
+            "OpenLayers/Layer/GeoRSS.js",
+            "OpenLayers/Layer/Boxes.js",
+            "OpenLayers/Layer/TMS.js",
+            "OpenLayers/Layer/TileCache.js",
+            "OpenLayers/Popup/Anchored.js",
+            "OpenLayers/Popup/AnchoredBubble.js",
+            "OpenLayers/Popup/Framed.js",
+            "OpenLayers/Popup/FramedCloud.js",
+            "OpenLayers/Feature.js",
+            "OpenLayers/Feature/Vector.js",
+            "OpenLayers/Feature/WFS.js",
+            "OpenLayers/Handler.js",
+            "OpenLayers/Handler/Click.js",
+            "OpenLayers/Handler/Hover.js",
+            "OpenLayers/Handler/Point.js",
+            "OpenLayers/Handler/Path.js",
+            "OpenLayers/Handler/Polygon.js",
+            "OpenLayers/Handler/Feature.js",
+            "OpenLayers/Handler/Drag.js",
+            "OpenLayers/Handler/RegularPolygon.js",
+            "OpenLayers/Handler/Box.js",
+            "OpenLayers/Handler/MouseWheel.js",
+            "OpenLayers/Handler/Keyboard.js",
+            "OpenLayers/Control.js",
+            "OpenLayers/Control/Attribution.js",
+            "OpenLayers/Control/Button.js",
+            "OpenLayers/Control/ZoomBox.js",
+            "OpenLayers/Control/ZoomToMaxExtent.js",
+            "OpenLayers/Control/DragPan.js",
+            "OpenLayers/Control/Navigation.js",
+            "OpenLayers/Control/MouseDefaults.js",
+            "OpenLayers/Control/MousePosition.js",
+            "OpenLayers/Control/OverviewMap.js",
+            "OpenLayers/Control/KeyboardDefaults.js",
+            "OpenLayers/Control/PanZoom.js",
+            "OpenLayers/Control/PanZoomBar.js",
+            "OpenLayers/Control/ArgParser.js",
+            "OpenLayers/Control/Permalink.js",
+            "OpenLayers/Control/Scale.js",
+            "OpenLayers/Control/ScaleLine.js",
+            "OpenLayers/Control/LayerSwitcher.js",
+            "OpenLayers/Control/DrawFeature.js",
+            "OpenLayers/Control/DragFeature.js",
+            "OpenLayers/Control/ModifyFeature.js",
+            "OpenLayers/Control/Panel.js",
+            "OpenLayers/Control/SelectFeature.js",
+            "OpenLayers/Control/NavigationHistory.js",
+            "OpenLayers/Geometry.js",
+            "OpenLayers/Geometry/Rectangle.js",
+            "OpenLayers/Geometry/Collection.js",
+            "OpenLayers/Geometry/Point.js",
+            "OpenLayers/Geometry/MultiPoint.js",
+            "OpenLayers/Geometry/Curve.js",
+            "OpenLayers/Geometry/LineString.js",
+            "OpenLayers/Geometry/LinearRing.js",        
+            "OpenLayers/Geometry/Polygon.js",
+            "OpenLayers/Geometry/MultiLineString.js",
+            "OpenLayers/Geometry/MultiPolygon.js",
+            "OpenLayers/Geometry/Surface.js",
+            "OpenLayers/Renderer.js",
+            "OpenLayers/Renderer/Elements.js",
+            "OpenLayers/Renderer/SVG.js",
+            "OpenLayers/Renderer/VML.js",
+            "OpenLayers/Layer/Vector.js",
+            "OpenLayers/Layer/PointTrack.js",
+            "OpenLayers/Layer/GML.js",
+            "OpenLayers/Style.js",
+            "OpenLayers/StyleMap.js",
+            "OpenLayers/Rule.js",
+            "OpenLayers/Filter.js",
+            "OpenLayers/Filter/FeatureId.js",
+            "OpenLayers/Filter/Logical.js",
+            "OpenLayers/Filter/Comparison.js",
+            "OpenLayers/Format.js",
+            "OpenLayers/Format/XML.js",
+            "OpenLayers/Format/GML.js",
+            "OpenLayers/Format/KML.js",
+            "OpenLayers/Format/GeoRSS.js",
+            "OpenLayers/Format/WFS.js",
+            "OpenLayers/Format/WKT.js",
+            "OpenLayers/Format/OSM.js",
+            "OpenLayers/Format/SLD.js",
+            "OpenLayers/Format/SLD/v1.js",
+            "OpenLayers/Format/SLD/v1_0_0.js",
+            "OpenLayers/Format/Text.js",
+            "OpenLayers/Format/JSON.js",
+            "OpenLayers/Format/GeoJSON.js",
+            "OpenLayers/Format/WMC.js",
+            "OpenLayers/Format/WMC/v1.js",
+            "OpenLayers/Format/WMC/v1_0_0.js",
+            "OpenLayers/Format/WMC/v1_1_0.js",
+            "OpenLayers/Layer/WFS.js",
+            "OpenLayers/Control/MouseToolbar.js",
+            "OpenLayers/Control/NavToolbar.js",
+            "OpenLayers/Control/EditingToolbar.js",
+            "OpenLayers/Lang.js",
+            "OpenLayers/Lang/en.js"
+        ); // etc.
+
+        var agent = navigator.userAgent;
+        var docWrite = (agent.match("MSIE") || agent.match("Safari"));
+        if(docWrite) {
+            var allScriptTags = new Array(jsfiles.length);
+        }
+        var host = OpenLayers._getScriptLocation() + "lib/";    
+        for (var i = 0; i < jsfiles.length; i++) {
+            if (docWrite) {
+                allScriptTags[i] = "<script src='" + host + jsfiles[i] +
+                                   "'></script>"; 
+            } else {
+                var s = document.createElement("script");
+                s.src = host + jsfiles[i];
+                var h = document.getElementsByTagName("head").length ? 
+                           document.getElementsByTagName("head")[0] : 
+                           document.body;
+                h.appendChild(s);
+            }
+        }
+        if (docWrite) {
+            document.write(allScriptTags.join(""));
+        }
+    }
+})();
+
+/**
+ * Constant: VERSION_NUMBER
+ */
+OpenLayers.VERSION_NUMBER="$Revision$";
+/* ======================================================================
+    OpenLayers/BaseTypes.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/BaseTypes/LonLat.js
+ * @requires OpenLayers/BaseTypes/Size.js
+ * @requires OpenLayers/BaseTypes/Pixel.js
+ * @requires OpenLayers/BaseTypes/Bounds.js
+ * @requires OpenLayers/BaseTypes/Element.js
+ * @requires OpenLayers/Lang/en.js
+ */
+ 
+/** 
+ * Header: OpenLayers Base Types
+ * OpenLayers custom string, number and function functions are described here.
+ */
+
+/**
+ * Namespace: OpenLayers.String
+ * Contains convenience functions for string manipulation.
+ */
+OpenLayers.String = {
+
+    /**
+     * APIFunction: startsWith
+     * Test whether a string starts with another string. 
+     * 
+     * Parameters:
+     * str - {String} The string to test.
+     * sub - {Sring} The substring to look for.
+     *  
+     * Returns:
+     * {Boolean} The first string starts with the second.
+     */
+    startsWith: function(str, sub) {
+        return (str.indexOf(sub) == 0);
+    },
+
+    /**
+     * APIFunction: contains
+     * Test whether a string contains another string.
+     * 
+     * Parameters:
+     * str - {String} The string to test.
+     * sub - {String} The substring to look for.
+     * 
+     * Returns:
+     * {Boolean} The first string contains the second.
+     */
+    contains: function(str, sub) {
+        return (str.indexOf(sub) != -1);
+    },
+    
+    /**
+     * APIFunction: trim
+     * Removes leading and trailing whitespace characters from a string.
+     * 
+     * Parameters:
+     * str - {String} The (potentially) space padded string.  This string is not
+     *     modified.
+     * 
+     * Returns:
+     * {String} A trimmed version of the string with all leading and 
+     *     trailing spaces removed.
+     */
+    trim: function(str) {
+        return str.replace(/^\s*(.*?)\s*$/, "$1");    
+    },
+    
+    /**
+     * APIFunction: camelize
+     * Camel-case a hyphenated string. 
+     *     Ex. "chicken-head" becomes "chickenHead", and
+     *     "-chicken-head" becomes "ChickenHead".
+     *
+     * Parameters:
+     * str - {String} The string to be camelized.  The original is not modified.
+     * 
+     * Returns:
+     * {String} The string, camelized
+     */
+    camelize: function(str) {
+        var oStringList = str.split('-');
+        var camelizedString = oStringList[0];
+        for (var i = 1; i < oStringList.length; i++) {
+            var s = oStringList[i];
+            camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
+        }
+        return camelizedString;
+    },
+    
+    /**
+     * APIFunction: format
+     * Given a string with tokens in the form ${token}, return a string
+     *     with tokens replaced with properties from the given context
+     *     object.  Represent a literal "${" by doubling it, e.g. "${${".
+     *
+     * Parameters:
+     * template - {String} A string with tokens to be replaced.  A template
+     *     has the form "literal ${token}" where the token will be replaced
+     *     by the value of context["token"].
+     * context - {Object} An optional object with properties corresponding
+     *     to the tokens in the format string.  If no context is sent, the
+     *     window object will be used.
+     * args - {Array} Optional arguments to pass to any functions found in
+     *     the context.  If a context property is a function, the token
+     *     will be replaced by the return from the function called with
+     *     these arguments.
+     *
+     * Returns:
+     * {String} A string with tokens replaced from the context object.
+     */
+    format: function(template, context, args) {
+        if(!context) {
+            context = window;
+        }
+        var tokens = template.split("${");
+        var item, last, replacement;
+        for(var i=1; i<tokens.length; i++) {
+            item = tokens[i];
+            last = item.indexOf("}"); 
+            if(last > 0) {
+                replacement = context[item.substring(0, last)];
+                if(typeof replacement == "function") {
+                    replacement = args ?
+                        replacement.apply(null, args) :
+                        replacement();
+                }
+                tokens[i] = replacement + item.substring(++last); 
+            } else {
+                tokens[i] = "${" + item;
+            }
+        }
+        return tokens.join("");
+    }
+
+};
+
+if (!String.prototype.startsWith) {
+    /**
+     * APIMethod: String.startsWith
+     * *Deprecated*. Whether or not a string starts with another string. 
+     * 
+     * Parameters:
+     * sStart - {Sring} The string we're testing for.
+     *  
+     * Returns:
+     * {Boolean} Whether or not this string starts with the string passed in.
+     */
+    String.prototype.startsWith = function(sStart) {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                                {'newMethod':'OpenLayers.String.startsWith'}));
+        return OpenLayers.String.startsWith(this, sStart);
+    };
+}
+
+if (!String.prototype.contains) {
+    /**
+     * APIMethod: String.contains
+     * *Deprecated*. Whether or not a string contains another string.
+     * 
+     * Parameters:
+     * str - {String} The string that we're testing for.
+     * 
+     * Returns:
+     * {Boolean} Whether or not this string contains with the string passed in.
+     */
+    String.prototype.contains = function(str) {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                                  {'newMethod':'OpenLayers.String.contains'}));
+        return OpenLayers.String.contains(this, str);
+    };
+}
+
+if (!String.prototype.trim) {
+    /**
+     * APIMethod: String.trim
+     * *Deprecated*. Removes leading and trailing whitespace characters from a string.
+     * 
+     * Returns:
+     * {String} A trimmed version of the string - all leading and 
+     *          trailing spaces removed
+     */
+    String.prototype.trim = function() {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                                      {'newMethod':'OpenLayers.String.trim'}));
+        return OpenLayers.String.trim(this);
+    };
+}
+
+if (!String.prototype.camelize) {
+    /**
+     * APIMethod: String.camelize
+     * *Deprecated*. Camel-case a hyphenated string. 
+     *     Ex. "chicken-head" becomes "chickenHead", and
+     *     "-chicken-head" becomes "ChickenHead".
+     * 
+     * Returns:
+     * {String} The string, camelized
+     */
+    String.prototype.camelize = function() {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                                  {'newMethod':'OpenLayers.String.camelize'}));
+        return OpenLayers.String.camelize(this);
+    };
+}
+
+/**
+ * Namespace: OpenLayers.Number
+ * Contains convenience functions for manipulating numbers.
+ */
+OpenLayers.Number = {
+
+    /**
+     * Property: decimalSeparator
+     * Decimal separator to use when formatting numbers.
+     */
+    decimalSeparator: ".",
+    
+    /**
+     * Property: thousandsSeparator
+     * Thousands separator to use when formatting numbers.
+     */
+    thousandsSeparator: ",",
+    
+    /**
+     * APIFunction: limitSigDigs
+     * Limit the number of significant digits on a float.
+     * 
+     * Parameters:
+     * num - {Float}
+     * sig - {Integer}
+     * 
+     * Returns:
+     * {Float} The number, rounded to the specified number of significant
+     *     digits.
+     */
+    limitSigDigs: function(num, sig) {
+        var fig = 0;
+        if (sig > 0) {
+            fig = parseFloat(num.toPrecision(sig));
+        }
+        return fig;
+    },
+    
+    /**
+     * APIFunction: format
+     * Formats a number for output.
+     * 
+     * Parameters:
+     * num  - {Float}
+     * dec  - {Integer} Number of decimal places to round to.
+     *        Defaults to 0. Set to null to leave decimal places unchanged.
+     * tsep - {String} Thousands separator.
+     *        Default is ",".
+     * dsep - {String} Decimal separator.
+     *        Default is ".".
+     *
+     * Returns:
+     * {String} A string representing the formatted number.
+     */
+    format: function(num, dec, tsep, dsep) {
+        dec = (typeof dec != "undefined") ? dec : 0; 
+        tsep = (typeof tsep != "undefined") ? tsep :
+            OpenLayers.Number.thousandsSeparator; 
+        dsep = (typeof dsep != "undefined") ? dsep :
+            OpenLayers.Number.decimalSeparator;
+
+        if (dec != null) {
+            num = parseFloat(num.toFixed(dec));
+        }
+
+        var parts = num.toString().split(".");
+        if (parts.length == 1 && dec == null) {
+            // integer where we do not want to touch the decimals
+            dec = 0;
+        }
+        
+        var integer = parts[0];
+        if (tsep) {
+            var thousands = /(-?[0-9]+)([0-9]{3})/; 
+            while(thousands.test(integer)) { 
+                integer = integer.replace(thousands, "$1" + tsep + "$2"); 
+            }
+        }
+        
+        var str;
+        if (dec == 0) {
+            str = integer;
+        } else {
+            var rem = parts.length > 1 ? parts[1] : "0";
+            if (dec != null) {
+                rem = rem + new Array(dec - rem.length + 1).join("0");
+            }
+            str = integer + dsep + rem;
+        }
+        return str;
+    }
+};
+
+if (!Number.prototype.limitSigDigs) {
+    /**
+     * APIMethod: Number.limitSigDigs
+     * *Deprecated*. Limit the number of significant digits on an integer. Does *not*
+     *     work with floats!
+     * 
+     * Parameters:
+     * sig - {Integer}
+     * 
+     * Returns:
+     * {Integer} The number, rounded to the specified number of significant digits.
+     *           If null, 0, or negative value passed in, returns 0
+     */
+    Number.prototype.limitSigDigs = function(sig) {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                              {'newMethod':'OpenLayers.String.limitSigDigs'}));
+        return OpenLayers.Number.limitSigDigs(this, sig);
+    };
+}
+
+/**
+ * Namespace: OpenLayers.Function
+ * Contains convenience functions for function manipulation.
+ */
+OpenLayers.Function = {
+    /**
+     * APIFunction: bind
+     * Bind a function to an object.  Method to easily create closures with
+     *     'this' altered.
+     * 
+     * Parameters:
+     * func - {Function} Input function.
+     * object - {Object} The object to bind to the input function (as this).
+     * 
+     * Returns:
+     * {Function} A closure with 'this' set to the passed in object.
+     */
+    bind: function(func, object) {
+        // create a reference to all arguments past the second one
+        var args = Array.prototype.slice.apply(arguments, [2]);
+        return function() {
+            // Push on any additional arguments from the actual function call.
+            // These will come after those sent to the bind call.
+            var newArgs = args.concat(
+                Array.prototype.slice.apply(arguments, [0])
+            );
+            return func.apply(object, newArgs);
+        };
+    },
+    
+    /**
+     * APIFunction: bindAsEventListener
+     * Bind a function to an object, and configure it to receive the event
+     *     object as first parameter when called. 
+     * 
+     * Parameters:
+     * func - {Function} Input function to serve as an event listener.
+     * object - {Object} A reference to this.
+     * 
+     * Returns:
+     * {Function}
+     */
+    bindAsEventListener: function(func, object) {
+        return function(event) {
+            return func.call(object, event || window.event);
+        };
+    }
+};
+
+if (!Function.prototype.bind) {
+    /**
+     * APIMethod: Function.bind
+     * *Deprecated*. Bind a function to an object. 
+     * Method to easily create closures with 'this' altered.
+     * 
+     * Parameters:
+     * object - {Object} the this parameter
+     * 
+     * Returns:
+     * {Function} A closure with 'this' altered to the first
+     *            argument.
+     */
+    Function.prototype.bind = function() {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                                {'newMethod':'OpenLayers.String.bind'}));
+        // new function takes the same arguments with this function up front
+        Array.prototype.unshift.apply(arguments, [this]);
+        return OpenLayers.Function.bind.apply(null, arguments);
+    };
+}
+
+if (!Function.prototype.bindAsEventListener) {
+    /**
+     * APIMethod: Function.bindAsEventListener
+     * *Deprecated*. Bind a function to an object, and configure it to receive the
+     *     event object as first parameter when called. 
+     * 
+     * Parameters:
+     * object - {Object} A reference to this.
+     * 
+     * Returns:
+     * {Function}
+     */
+    Function.prototype.bindAsEventListener = function(object) {
+        OpenLayers.Console.warn(OpenLayers.i18n("methodDeprecated",
+                        {'newMethod':'OpenLayers.String.bindAsEventListener'}));
+        return OpenLayers.Function.bindAsEventListener(this, object);
+    };
+}
+
+/**
+ * Namespace: OpenLayers.Array
+ * Contains convenience functions for array manipulation.
+ */
+OpenLayers.Array = {
+
+    /**
+     * APIMethod: filter
+     * Filter an array.  Provides the functionality of the
+     *     Array.prototype.filter extension to the ECMA-262 standard.  Where
+     *     available, Array.prototype.filter will be used.
+     *
+     * Based on well known example from http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Array:filter
+     *
+     * Parameters:
+     * array - {Array} The array to be filtered.  This array is not mutated.
+     *     Elements added to this array by the callback will not be visited.
+     * callback - {Function} A function that is called for each element in
+     *     the array.  If this function returns true, the element will be
+     *     included in the return.  The function will be called with three
+     *     arguments: the element in the array, the index of that element, and
+     *     the array itself.  If the optional caller parameter is specified
+     *     the callback will be called with this set to caller.
+     * caller - {Object} Optional object to be set as this when the callback
+     *     is called.
+     *
+     * Returns:
+     * {Array} An array of elements from the passed in array for which the
+     *     callback returns true.
+     */
+    filter: function(array, callback, caller) {
+        var selected = [];
+        if (Array.prototype.filter) {
+            selected = array.filter(callback, caller);
+        } else {
+            var len = array.length;
+            if (typeof callback != "function") {
+                throw new TypeError();
+            }
+            for(var i=0; i<len; i++) {
+                if (i in array) {
+                    var val = array[i];
+                    if (callback.call(caller, val, i, array)) {
+                        selected.push(val);
+                    }
+                }
+            }        
+        }
+        return selected;
+    }
+    
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Class.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Constructor: OpenLayers.Class
+ * Base class used to construct all other classes. Includes support for 
+ *     multiple inheritance. 
+ *     
+ * This constructor is new in OpenLayers 2.5.  At OpenLayers 3.0, the old 
+ *     syntax for creating classes and dealing with inheritance 
+ *     will be removed.
+ * 
+ * To create a new OpenLayers-style class, use the following syntax:
+ * > var MyClass = OpenLayers.Class(prototype);
+ *
+ * To create a new OpenLayers-style class with multiple inheritance, use the
+ *     following syntax:
+ * > var MyClass = OpenLayers.Class(Class1, Class2, prototype);
+ *
+ */
+OpenLayers.Class = function() {
+    var Class = function() {
+        /**
+         * This following condition can be removed at 3.0 - this is only for
+         * backwards compatibility while the Class.inherit method is still
+         * in use.  So at 3.0, the following three lines would be replaced with
+         * simply:
+         * this.initialize.apply(this, arguments);
+         */
+        if (arguments && arguments[0] != OpenLayers.Class.isPrototype) {
+            this.initialize.apply(this, arguments);
+        }
+    };
+    var extended = {};
+    var parent;
+    for(var i=0; i<arguments.length; ++i) {
+        if(typeof arguments[i] == "function") {
+            // get the prototype of the superclass
+            parent = arguments[i].prototype;
+        } else {
+            // in this case we're extending with the prototype
+            parent = arguments[i];
+        }
+        OpenLayers.Util.extend(extended, parent);
+    }
+    Class.prototype = extended;
+    return Class;
+};
+
+/**
+ * Property: isPrototype
+ * *Deprecated*.  This is no longer needed and will be removed at 3.0.
+ */
+OpenLayers.Class.isPrototype = function () {};
+
+/**
+ * APIFunction: OpenLayers.create
+ * *Deprecated*.  Old method to create an OpenLayers style class.  Use the
+ *     <OpenLayers.Class> constructor instead.
+ *
+ * Returns:
+ * An OpenLayers class
+ */
+OpenLayers.Class.create = function() {
+    return function() {
+        if (arguments && arguments[0] != OpenLayers.Class.isPrototype) {
+            this.initialize.apply(this, arguments);
+        }
+    };
+};
+
+
+/**
+ * APIFunction: inherit
+ * *Deprecated*.  Old method to inherit from one or more OpenLayers style
+ *     classes.  Use the <OpenLayers.Class> constructor instead.
+ *
+ * Parameters:
+ * class - One or more classes can be provided as arguments
+ *
+ * Returns:
+ * An object prototype
+ */
+OpenLayers.Class.inherit = function () {
+    var superClass = arguments[0];
+    var proto = new superClass(OpenLayers.Class.isPrototype);
+    for (var i = 1; i < arguments.length; i++) {
+        if (typeof arguments[i] == "function") {
+            var mixin = arguments[i];
+            arguments[i] = new mixin(OpenLayers.Class.isPrototype);
+        }
+        OpenLayers.Util.extend(proto, arguments[i]);
+    }
+    return proto;
+};
+/* ======================================================================
+    OpenLayers/Util.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * Namespace: Util
+ */
+OpenLayers.Util = {};
+
+/** 
+ * Function: getElement
+ * This is the old $() from prototype
+ */
+OpenLayers.Util.getElement = function() {
+    var elements = [];
+
+    for (var i = 0; i < arguments.length; i++) {
+        var element = arguments[i];
+        if (typeof element == 'string') {
+            element = document.getElementById(element);
+        }
+        if (arguments.length == 1) {
+            return element;
+        }
+        elements.push(element);
+    }
+    return elements;
+};
+
+/** 
+ * Maintain $() from prototype
+ */
+if ($ == null) {
+    var $ = OpenLayers.Util.getElement;
+}
+
+/**
+ * APIFunction: extend
+ * Copy all properties of a source object to a destination object.  Modifies
+ *     the passed in destination object.  Any properties on the source object
+ *     that are set to undefined will not be (re)set on the destination object.
+ *
+ * Parameters:
+ * destination - {Object} The object that will be modified
+ * source - {Object} The object with properties to be set on the destination
+ *
+ * Returns:
+ * {Object} The destination object.
+ */
+OpenLayers.Util.extend = function(destination, source) {
+    if(destination && source) {
+        for(var property in source) {
+            var value = source[property];
+            if(value !== undefined) {
+                destination[property] = value;
+            }
+        }
+
+        /**
+         * IE doesn't include the toString property when iterating over an object's
+         * properties with the for(property in object) syntax.  Explicitly check if
+         * the source has its own toString property.
+         */
+
+        /*
+         * FF/Windows < 2.0.0.13 reports "Illegal operation on WrappedNative
+         * prototype object" when calling hawOwnProperty if the source object
+         * is an instance of window.Event.
+         */
+
+        var sourceIsEvt = typeof window.Event == "function"
+                          && source instanceof window.Event;
+
+        if(!sourceIsEvt
+           && source.hasOwnProperty && source.hasOwnProperty('toString')) {
+            destination.toString = source.toString;
+        }
+    }
+    return destination;
+};
+
+
+/** 
+ * Function: removeItem
+ * Remove an object from an array. Iterates through the array
+ *     to find the item, then removes it.
+ *
+ * Parameters:
+ * array - {Array}
+ * item - {Object}
+ * 
+ * Return
+ * {Array} A reference to the array
+ */
+OpenLayers.Util.removeItem = function(array, item) {
+    for(var i = array.length - 1; i >= 0; i--) {
+        if(array[i] == item) {
+            array.splice(i,1);
+            //break;more than once??
+        }
+    }
+    return array;
+};
+
+/**
+ * Function: clearArray
+ * *Deprecated*. This function will disappear in 3.0.
+ * Please use "array.length = 0" instead.
+ * 
+ * Parameters:
+ * array - {Array}
+ */
+OpenLayers.Util.clearArray = function(array) {
+    OpenLayers.Console.warn(
+        OpenLayers.i18n(
+            "methodDeprecated", {'newMethod': 'array = []'}
+        )
+    );
+    array.length = 0;
+};
+
+/** 
+ * Function: indexOf
+ * Seems to exist already in FF, but not in MOZ.
+ * 
+ * Parameters:
+ * array - {Array}
+ * obj - {Object}
+ * 
+ * Returns:
+ * {Integer} The index at, which the object was found in the array.
+ *           If not found, returns -1.
+ */
+OpenLayers.Util.indexOf = function(array, obj) {
+
+    for(var i=0; i < array.length; i++) {
+        if (array[i] == obj) {
+            return i;
+        }
+    }
+    return -1;   
+};
+
+
+
+/**
+ * Function: modifyDOMElement
+ * 
+ * Modifies many properties of a DOM element all at once.  Passing in 
+ * null to an individual parameter will avoid setting the attribute.
+ *
+ * Parameters:
+ * id - {String} The element id attribute to set.
+ * px - {<OpenLayers.Pixel>} The left and top style position.
+ * sz - {<OpenLayers.Size>}  The width and height style attributes.
+ * position - {String}       The position attribute.  eg: absolute, 
+ *                           relative, etc.
+ * border - {String}         The style.border attribute.  eg:
+ *                           solid black 2px
+ * overflow - {String}       The style.overview attribute.  
+ * opacity - {Float}         Fractional value (0.0 - 1.0)
+ */
+OpenLayers.Util.modifyDOMElement = function(element, id, px, sz, position, 
+                                            border, overflow, opacity) {
+
+    if (id) {
+        element.id = id;
+    }
+    if (px) {
+        element.style.left = px.x + "px";
+        element.style.top = px.y + "px";
+    }
+    if (sz) {
+        element.style.width = sz.w + "px";
+        element.style.height = sz.h + "px";
+    }
+    if (position) {
+        element.style.position = position;
+    }
+    if (border) {
+        element.style.border = border;
+    }
+    if (overflow) {
+        element.style.overflow = overflow;
+    }
+    if (parseFloat(opacity) >= 0.0 && parseFloat(opacity) < 1.0) {
+        element.style.filter = 'alpha(opacity=' + (opacity * 100) + ')';
+        element.style.opacity = opacity;
+    } else if (parseFloat(opacity) == 1.0) {
+        element.style.filter = '';
+        element.style.opacity = '';
+    }
+};
+
+/** 
+ * Function: createDiv
+ * Creates a new div and optionally set some standard attributes.
+ * Null may be passed to each parameter if you do not wish to
+ * set a particular attribute.
+ * Note - zIndex is NOT set on the resulting div.
+ * 
+ * Parameters:
+ * id - {String} An identifier for this element.  If no id is
+ *               passed an identifier will be created 
+ *               automatically.
+ * px - {<OpenLayers.Pixel>} The element left and top position. 
+ * sz - {<OpenLayers.Size>} The element width and height.
+ * imgURL - {String} A url pointing to an image to use as a 
+ *                   background image.
+ * position - {String} The style.position value. eg: absolute,
+ *                     relative etc.
+ * border - {String} The the style.border value. 
+ *                   eg: 2px solid black
+ * overflow - {String} The style.overflow value. Eg. hidden
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ * 
+ * Returns: 
+ * {DOMElement} A DOM Div created with the specified attributes.
+ */
+OpenLayers.Util.createDiv = function(id, px, sz, imgURL, position, 
+                                     border, overflow, opacity) {
+
+    var dom = document.createElement('div');
+
+    if (imgURL) {
+        dom.style.backgroundImage = 'url(' + imgURL + ')';
+    }
+
+    //set generic properties
+    if (!id) {
+        id = OpenLayers.Util.createUniqueID("OpenLayersDiv");
+    }
+    if (!position) {
+        position = "absolute";
+    }
+    OpenLayers.Util.modifyDOMElement(dom, id, px, sz, position, 
+                                     border, overflow, opacity);
+
+    return dom;
+};
+
+/**
+ * Function: createImage
+ * Creates an img element with specific attribute values.
+ *  
+ * Parameters:
+ * id - {String} The id field for the img.  If none assigned one will be
+ *               automatically generated.
+ * px - {<OpenLayers.Pixel>} The left and top positions.
+ * sz - {<OpenLayers.Size>} The style.width and style.height values.
+ * imgURL - {String} The url to use as the image source.
+ * position - {String} The style.position value.
+ * border - {String} The border to place around the image.
+ * delayDisplay - {Boolean} If true waits until the image has been
+ *                          loaded.
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ * 
+ * Returns:
+ * {DOMElement} A DOM Image created with the specified attributes.
+ */
+OpenLayers.Util.createImage = function(id, px, sz, imgURL, position, border,
+                                       opacity, delayDisplay) {
+
+    var image = document.createElement("img");
+
+    //set generic properties
+    if (!id) {
+        id = OpenLayers.Util.createUniqueID("OpenLayersDiv");
+    }
+    if (!position) {
+        position = "relative";
+    }
+    OpenLayers.Util.modifyDOMElement(image, id, px, sz, position, 
+                                     border, null, opacity);
+
+    if(delayDisplay) {
+        image.style.display = "none";
+        OpenLayers.Event.observe(image, "load", 
+            OpenLayers.Function.bind(OpenLayers.Util.onImageLoad, image));
+        OpenLayers.Event.observe(image, "error", 
+            OpenLayers.Function.bind(OpenLayers.Util.onImageLoadError, image));
+        
+    }
+    
+    //set special properties
+    image.style.alt = id;
+    image.galleryImg = "no";
+    if (imgURL) {
+        image.src = imgURL;
+    }
+
+
+        
+    return image;
+};
+
+/**
+ * Function: setOpacity
+ * *Deprecated*.  This function has been deprecated. Instead, please use 
+ *     <OpenLayers.Util.modifyDOMElement> 
+ *     or 
+ *     <OpenLayers.Util.modifyAlphaImageDiv>
+ * 
+ * Set the opacity of a DOM Element
+ *     Note that for this function to work in IE, elements must "have layout"
+ *     according to:
+ *     http://msdn.microsoft.com/workshop/author/dhtml/reference/properties/haslayout.asp
+ *
+ * Parameters:
+ * element - {DOMElement} Set the opacity on this DOM element
+ * opacity - {Float} Opacity value (0.0 - 1.0)
+ */
+OpenLayers.Util.setOpacity = function(element, opacity) {
+    OpenLayers.Util.modifyDOMElement(element, null, null, null,
+                                     null, null, null, opacity);
+};
+
+/**
+ * Function: onImageLoad
+ * Bound to image load events.  For all images created with <createImage> or
+ *     <createAlphaImageDiv>, this function will be bound to the load event.
+ */
+OpenLayers.Util.onImageLoad = function() {
+    // The complex check here is to solve issues described in #480.
+    // Every time a map view changes, it increments the 'viewRequestID' 
+    // property. As the requests for the images for the new map view are sent
+    // out, they are tagged with this unique viewRequestID. 
+    // 
+    // If an image has no viewRequestID property set, we display it regardless, 
+    // but if it does have a viewRequestID property, we check that it matches 
+    // the viewRequestID set on the map.
+    // 
+    // If the viewRequestID on the map has changed, that means that the user
+    // has changed the map view since this specific request was sent out, and
+    // therefore this tile does not need to be displayed (so we do not execute
+    // this code that turns its display on).
+    //
+    if (!this.viewRequestID ||
+        (this.map && this.viewRequestID == this.map.viewRequestID)) { 
+        this.style.backgroundColor = null;
+        this.style.display = "";  
+    }
+};
+
+/**
+ * Property: onImageLoadErrorColor
+ * {String} The color tiles with load errors will turn.
+ *          Default is "pink"
+ */
+OpenLayers.Util.onImageLoadErrorColor = "pink";
+
+/**
+ * Property: IMAGE_RELOAD_ATTEMPTS
+ * {Integer} How many times should we try to reload an image before giving up?
+ *           Default is 0
+ */
+OpenLayers.IMAGE_RELOAD_ATTEMPTS = 0;
+
+/**
+ * Function: onImageLoadError 
+ */
+OpenLayers.Util.onImageLoadError = function() {
+    this._attempts = (this._attempts) ? (this._attempts + 1) : 1;
+    if(this._attempts <= OpenLayers.IMAGE_RELOAD_ATTEMPTS) {
+        this.src = this.src;
+    } else {
+        this.style.backgroundColor = OpenLayers.Util.onImageLoadErrorColor;
+    }
+    this.style.display = "";
+};
+
+/**
+ * Function: alphaHack
+ * Checks whether it's necessary (and possible) to use the png alpha
+ * hack which allows alpha transparency for png images under Internet
+ * Explorer.
+ * 
+ * Returns:
+ * {Boolean} true if alpha has is necessary and possible, false otherwise.
+ */
+OpenLayers.Util.alphaHack = function() {
+    var arVersion = navigator.appVersion.split("MSIE");
+    var version = parseFloat(arVersion[1]);
+    var filter = false;
+    
+    // IEs4Lin dies when trying to access document.body.filters, because 
+    // the property is there, but requires a DLL that can't be provided. This
+    // means that we need to wrap this in a try/catch so that this can
+    // continue.
+    
+    try { 
+        filter = !!(document.body.filters);
+    } catch (e) {
+    }    
+    
+    return ( filter &&
+                      (version >= 5.5) && (version < 7) );
+};
+
+/** 
+ * Function: modifyAlphaImageDiv
+ * 
+ * div - {DOMElement} Div containing Alpha-adjusted Image
+ * id - {String}
+ * px - {<OpenLayers.Pixel>}
+ * sz - {<OpenLayers.Size>}
+ * imgURL - {String}
+ * position - {String}
+ * border - {String}
+ * sizing {String} 'crop', 'scale', or 'image'. Default is "scale"
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ */ 
+OpenLayers.Util.modifyAlphaImageDiv = function(div, id, px, sz, imgURL, 
+                                               position, border, sizing, 
+                                               opacity) {
+
+    OpenLayers.Util.modifyDOMElement(div, id, px, sz, 
+                                     null, null, null, opacity);
+
+    var img = div.childNodes[0];
+
+    if (imgURL) {
+        img.src = imgURL;
+    }
+    OpenLayers.Util.modifyDOMElement(img, div.id + "_innerImage", null, sz, 
+                                     "relative", border);
+    
+    if (OpenLayers.Util.alphaHack()) {
+
+        div.style.display = "inline-block";
+        if (sizing == null) {
+            sizing = "scale";
+        }
+        
+        div.style.filter = "progid:DXImageTransform.Microsoft" +
+                           ".AlphaImageLoader(src='" + img.src + "', " +
+                           "sizingMethod='" + sizing + "')";
+        if (parseFloat(div.style.opacity) >= 0.0 && 
+            parseFloat(div.style.opacity) < 1.0) {
+            div.style.filter += " alpha(opacity=" + div.style.opacity * 100 + ")";
+        }
+
+        img.style.filter = "alpha(opacity=0)";
+    }
+};
+
+/** 
+ * Function: createAlphaImageDiv
+ * 
+ * id - {String}
+ * px - {<OpenLayers.Pixel>}
+ * sz - {<OpenLayers.Size>}
+ * imgURL - {String}
+ * position - {String}
+ * border - {String}
+ * sizing {String} 'crop', 'scale', or 'image'. Default is "scale"
+ * delayDisplay{Boolean}
+ * 
+ * Returns:
+ * {DOMElement} A DOM Div created with a DOM Image inside it. If the hack is 
+ *              needed for transparency in IE, it is added.
+ */ 
+OpenLayers.Util.createAlphaImageDiv = function(id, px, sz, imgURL, 
+                                               position, border, sizing, 
+                                               opacity, delayDisplay) {
+    
+    var div = OpenLayers.Util.createDiv();
+    var img = OpenLayers.Util.createImage(null, null, null, null, null, null, 
+                                          null, false);
+    div.appendChild(img);
+
+    if (delayDisplay) {
+        img.style.display = "none";
+        OpenLayers.Event.observe(img, "load",
+            OpenLayers.Function.bind(OpenLayers.Util.onImageLoad, div));
+        OpenLayers.Event.observe(img, "error",
+            OpenLayers.Function.bind(OpenLayers.Util.onImageLoadError, div));
+    }
+
+    OpenLayers.Util.modifyAlphaImageDiv(div, id, px, sz, imgURL, position, 
+                                        border, sizing, opacity);
+    
+    return div;
+};
+
+
+/** 
+ * Function: upperCaseObject
+ * Creates a new hashtable and copies over all the keys from the 
+ *     passed-in object, but storing them under an uppercased
+ *     version of the key at which they were stored.
+ * 
+ * Parameters: 
+ * object - {Object}
+ * 
+ * Returns: 
+ * {Object} A new Object with all the same keys but uppercased
+ */
+OpenLayers.Util.upperCaseObject = function (object) {
+    var uObject = {};
+    for (var key in object) {
+        uObject[key.toUpperCase()] = object[key];
+    }
+    return uObject;
+};
+
+/** 
+ * Function: applyDefaults
+ * Takes an object and copies any properties that don't exist from
+ *     another properties, by analogy with OpenLayers.Util.extend() from
+ *     Prototype.js.
+ * 
+ * Parameters:
+ * to - {Object} The destination object.
+ * from - {Object} The source object.  Any properties of this object that
+ *     are undefined in the to object will be set on the to object.
+ *
+ * Returns:
+ * {Object} A reference to the to object.  Note that the to argument is modified
+ *     in place and returned by this function.
+ */
+OpenLayers.Util.applyDefaults = function (to, from) {
+
+    /*
+     * FF/Windows < 2.0.0.13 reports "Illegal operation on WrappedNative
+     * prototype object" when calling hawOwnProperty if the source object is an
+     * instance of window.Event.
+     */
+    var fromIsEvt = typeof window.Event == "function"
+                    && from instanceof window.Event;
+
+    for (var key in from) {
+        if (to[key] === undefined ||
+            (!fromIsEvt && from.hasOwnProperty
+             && from.hasOwnProperty(key) && !to.hasOwnProperty(key))) {
+            to[key] = from[key];
+        }
+    }
+    /**
+     * IE doesn't include the toString property when iterating over an object's
+     * properties with the for(property in object) syntax.  Explicitly check if
+     * the source has its own toString property.
+     */
+    if(!fromIsEvt && from.hasOwnProperty
+       && from.hasOwnProperty('toString') && !to.hasOwnProperty('toString')) {
+        to.toString = from.toString;
+    }
+    
+    return to;
+};
+
+/**
+ * Function: getParameterString
+ * 
+ * Parameters:
+ * params - {Object}
+ * 
+ * Returns:
+ * {String} A concatenation of the properties of an object in 
+ *          http parameter notation. 
+ *          (ex. <i>"key1=value1&key2=value2&key3=value3"</i>)
+ *          If a parameter is actually a list, that parameter will then
+ *          be set to a comma-seperated list of values (foo,bar) instead
+ *          of being URL escaped (foo%3Abar). 
+ */
+OpenLayers.Util.getParameterString = function(params) {
+    var paramsArray = [];
+    
+    for (var key in params) {
+      var value = params[key];
+      if ((value != null) && (typeof value != 'function')) {
+        var encodedValue;
+        if (typeof value == 'object' && value.constructor == Array) {
+          /* value is an array; encode items and separate with "," */
+          var encodedItemArray = [];
+          for (var itemIndex=0; itemIndex<value.length; itemIndex++) {
+            encodedItemArray.push(encodeURIComponent(value[itemIndex]));
+          }
+          encodedValue = encodedItemArray.join(",");
+        }
+        else {
+          /* value is a string; simply encode */
+          encodedValue = encodeURIComponent(value);
+        }
+        paramsArray.push(encodeURIComponent(key) + "=" + encodedValue);
+      }
+    }
+    
+    return paramsArray.join("&");
+};
+
+/**
+ * Property: ImgPath
+ * {String} Default is ''.
+ */
+OpenLayers.ImgPath = '';
+
+/** 
+ * Function: getImagesLocation
+ * 
+ * Returns:
+ * {String} The fully formatted image location string
+ */
+OpenLayers.Util.getImagesLocation = function() {
+    return OpenLayers.ImgPath || (OpenLayers._getScriptLocation() + "img/");
+};
+
+
+/** 
+ * Function: Try
+ * Execute functions until one of them doesn't throw an error. 
+ *     Capitalized because "try" is a reserved word in JavaScript.
+ *     Taken directly from OpenLayers.Util.Try()
+ * 
+ * Parameters:
+ * [*] - {Function} Any number of parameters may be passed to Try()
+ *    It will attempt to execute each of them until one of them 
+ *    successfully executes. 
+ *    If none executes successfully, returns null.
+ * 
+ * Returns:
+ * {*} The value returned by the first successfully executed function.
+ */
+OpenLayers.Util.Try = function() {
+    var returnValue = null;
+
+    for (var i = 0; i < arguments.length; i++) {
+      var lambda = arguments[i];
+      try {
+        returnValue = lambda();
+        break;
+      } catch (e) {}
+    }
+
+    return returnValue;
+};
+
+
+/** 
+ * Function: getNodes
+ * 
+ * These could/should be made namespace aware?
+ * 
+ * Parameters:
+ * p - {}
+ * tagName - {String}
+ * 
+ * Returns:
+ * {Array}
+ */
+OpenLayers.Util.getNodes=function(p, tagName) {
+    var nodes = OpenLayers.Util.Try(
+        function () {
+            return OpenLayers.Util._getNodes(p.documentElement.childNodes,
+                                            tagName);
+        },
+        function () {
+            return OpenLayers.Util._getNodes(p.childNodes, tagName);
+        }
+    );
+    return nodes;
+};
+
+/**
+ * Function: _getNodes
+ * 
+ * Parameters:
+ * nodes - {Array}
+ * tagName - {String}
+ * 
+ * Returns:
+ * {Array}
+ */
+OpenLayers.Util._getNodes=function(nodes, tagName) {
+    var retArray = [];
+    for (var i=0;i<nodes.length;i++) {
+        if (nodes[i].nodeName==tagName) {
+            retArray.push(nodes[i]);
+        }
+    }
+
+    return retArray;
+};
+
+
+
+/**
+ * Function: getTagText
+ * 
+ * Parameters:
+ * parent - {}
+ * item - {String}
+ * index - {Integer}
+ * 
+ * Returns:
+ * {String}
+ */
+OpenLayers.Util.getTagText = function (parent, item, index) {
+    var result = OpenLayers.Util.getNodes(parent, item);
+    if (result && (result.length > 0))
+    {
+        if (!index) {
+            index=0;
+        }
+        if (result[index].childNodes.length > 1) {
+            return result.childNodes[1].nodeValue; 
+        }
+        else if (result[index].childNodes.length == 1) {
+            return result[index].firstChild.nodeValue; 
+        }
+    } else { 
+        return ""; 
+    }
+};
+
+/**
+ * Function: getXmlNodeValue
+ * 
+ * Parameters:
+ * node - {XMLNode}
+ * 
+ * Returns:
+ * {String} The text value of the given node, without breaking in firefox or IE
+ */
+OpenLayers.Util.getXmlNodeValue = function(node) {
+    var val = null;
+    OpenLayers.Util.Try( 
+        function() {
+            val = node.text;
+            if (!val) {
+                val = node.textContent;
+            }
+            if (!val) {
+                val = node.firstChild.nodeValue;
+            }
+        }, 
+        function() {
+            val = node.textContent;
+        }); 
+    return val;
+};
+
+/** 
+ * Function: mouseLeft
+ * 
+ * Parameters:
+ * evt - {Event}
+ * div - {HTMLDivElement}
+ * 
+ * Returns:
+ * {Boolean}
+ */
+OpenLayers.Util.mouseLeft = function (evt, div) {
+    // start with the element to which the mouse has moved
+    var target = (evt.relatedTarget) ? evt.relatedTarget : evt.toElement;
+    // walk up the DOM tree.
+    while (target != div && target != null) {
+        target = target.parentNode;
+    }
+    // if the target we stop at isn't the div, then we've left the div.
+    return (target != div);
+};
+
+/**
+ * Function: rad
+ * 
+ * Parameters:
+ * x - {Float}
+ * 
+ * Returns:
+ * {Float}
+ */
+OpenLayers.Util.rad = function(x) {return x*Math.PI/180;};
+
+/**
+ * Function: distVincenty
+ * 
+ * Parameters:
+ * p1 - {<OpenLayers.LonLat>} (or any object with both .lat, .lon properties)
+ * p2 - {<OpenLayers.LonLat>} (or any object with both .lat, .lon properties)
+ * 
+ * Returns:
+ * {Float}
+ */
+OpenLayers.Util.distVincenty=function(p1, p2) {
+    var a = 6378137, b = 6356752.3142,  f = 1/298.257223563;
+    var L = OpenLayers.Util.rad(p2.lon - p1.lon);
+    var U1 = Math.atan((1-f) * Math.tan(OpenLayers.Util.rad(p1.lat)));
+    var U2 = Math.atan((1-f) * Math.tan(OpenLayers.Util.rad(p2.lat)));
+    var sinU1 = Math.sin(U1), cosU1 = Math.cos(U1);
+    var sinU2 = Math.sin(U2), cosU2 = Math.cos(U2);
+    var lambda = L, lambdaP = 2*Math.PI;
+    var iterLimit = 20;
+    while (Math.abs(lambda-lambdaP) > 1e-12 && --iterLimit>0) {
+        var sinLambda = Math.sin(lambda), cosLambda = Math.cos(lambda);
+        var sinSigma = Math.sqrt((cosU2*sinLambda) * (cosU2*sinLambda) +
+        (cosU1*sinU2-sinU1*cosU2*cosLambda) * (cosU1*sinU2-sinU1*cosU2*cosLambda));
+        if (sinSigma==0) {
+            return 0;  // co-incident points
+        }
+        var cosSigma = sinU1*sinU2 + cosU1*cosU2*cosLambda;
+        var sigma = Math.atan2(sinSigma, cosSigma);
+        var alpha = Math.asin(cosU1 * cosU2 * sinLambda / sinSigma);
+        var cosSqAlpha = Math.cos(alpha) * Math.cos(alpha);
+        var cos2SigmaM = cosSigma - 2*sinU1*sinU2/cosSqAlpha;
+        var C = f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));
+        lambdaP = lambda;
+        lambda = L + (1-C) * f * Math.sin(alpha) *
+        (sigma + C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));
+    }
+    if (iterLimit==0) {
+        return NaN;  // formula failed to converge
+    }
+    var uSq = cosSqAlpha * (a*a - b*b) / (b*b);
+    var A = 1 + uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));
+    var B = uSq/1024 * (256+uSq*(-128+uSq*(74-47*uSq)));
+    var deltaSigma = B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
+        B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));
+    var s = b*A*(sigma-deltaSigma);
+    var d = s.toFixed(3)/1000; // round to 1mm precision
+    return d;
+};
+
+/**
+ * Function: getParameters
+ * Parse the parameters from a URL or from the current page itself into a 
+ *     JavaScript Object. Note that parameter values with commas are separated
+ *     out into an Array.
+ * 
+ * Parameters:
+ * url - {String} Optional url used to extract the query string.
+ *                If null, query string is taken from page location.
+ * 
+ * Returns:
+ * {Object} An object of key/value pairs from the query string.
+ */
+OpenLayers.Util.getParameters = function(url) {
+    // if no url specified, take it from the location bar
+    url = url || window.location.href;
+
+    //parse out parameters portion of url string
+    var paramsString = "";
+    if (OpenLayers.String.contains(url, '?')) {
+        var start = url.indexOf('?') + 1;
+        var end = OpenLayers.String.contains(url, "#") ?
+                    url.indexOf('#') : url.length;
+        paramsString = url.substring(start, end);
+    }
+        
+    var parameters = {};
+    var pairs = paramsString.split(/[&;]/);
+    for(var i = 0; i < pairs.length; ++i) {
+        var keyValue = pairs[i].split('=');
+        if (keyValue[0]) {
+            var key = decodeURIComponent(keyValue[0]);
+            var value = keyValue[1] || ''; //empty string if no value
+
+            //decode individual values
+            value = value.split(",");
+            for(var j=0; j < value.length; j++) {
+                value[j] = decodeURIComponent(value[j]);
+            }
+
+            //if there's only one value, do not return as array                    
+            if (value.length == 1) {
+                value = value[0];
+            }                
+            
+            parameters[key] = value;
+         }
+     }
+    return parameters;
+};
+
+/**
+ * Function: getArgs
+ * *Deprecated*.  Will be removed in 3.0.  Please use instead
+ *     <OpenLayers.Util.getParameters>
+ * 
+ * Parameters:
+ * url - {String} Optional url used to extract the query string.
+ *                If null, query string is taken from page location.
+ * 
+ * Returns:
+ * {Object} An object of key/value pairs from the query string.
+ */
+OpenLayers.Util.getArgs = function(url) {
+    OpenLayers.Console.warn(
+        OpenLayers.i18n(
+            "methodDeprecated", {'newMethod': 'OpenLayers.Util.getParameters'}
+        )
+    );
+    return OpenLayers.Util.getParameters(url);
+};
+
+/**
+ * Property: lastSeqID
+ * {Integer} The ever-incrementing count variable.
+ *           Used for generating unique ids.
+ */
+OpenLayers.Util.lastSeqID = 0;
+
+/**
+ * Function: createUniqueID
+ * Create a unique identifier for this session.  Each time this function
+ *     is called, a counter is incremented.  The return will be the optional
+ *     prefix (defaults to "id_") appended with the counter value.
+ * 
+ * Parameters:
+ * prefix {String} Optionsal string to prefix unique id. Default is "id_".
+ * 
+ * Returns:
+ * {String} A unique id string, built on the passed in prefix.
+ */
+OpenLayers.Util.createUniqueID = function(prefix) {
+    if (prefix == null) {
+        prefix = "id_";
+    }
+    OpenLayers.Util.lastSeqID += 1; 
+    return prefix + OpenLayers.Util.lastSeqID;        
+};
+
+/**
+ * Constant: INCHES_PER_UNIT
+ * {Object} Constant inches per unit -- borrowed from MapServer mapscale.c
+ * derivation of nautical miles from http://en.wikipedia.org/wiki/Nautical_mile
+ */
+OpenLayers.INCHES_PER_UNIT = { 
+    'inches': 1.0,
+    'ft': 12.0,
+    'mi': 63360.0,
+    'm': 39.3701,
+    'km': 39370.1,
+    'dd': 4374754,
+    'yd': 36
+};
+OpenLayers.INCHES_PER_UNIT["in"]= OpenLayers.INCHES_PER_UNIT.inches;
+OpenLayers.INCHES_PER_UNIT["degrees"] = OpenLayers.INCHES_PER_UNIT.dd;
+OpenLayers.INCHES_PER_UNIT["nmi"] = 1852 * OpenLayers.INCHES_PER_UNIT.m;
+
+/** 
+ * Constant: DOTS_PER_INCH
+ * {Integer} 72 (A sensible default)
+ */
+OpenLayers.DOTS_PER_INCH = 72;
+
+/**
+ * Function: normalzeScale
+ * 
+ * Parameters:
+ * scale - {float}
+ * 
+ * Returns:
+ * {Float} A normalized scale value, in 1 / X format. 
+ *         This means that if a value less than one ( already 1/x) is passed
+ *         in, it just returns scale directly. Otherwise, it returns 
+ *         1 / scale
+ */
+OpenLayers.Util.normalizeScale = function (scale) {
+    var normScale = (scale > 1.0) ? (1.0 / scale) 
+                                  : scale;
+    return normScale;
+};
+
+/**
+ * Function: getResolutionFromScale
+ * 
+ * Parameters:
+ * scale - {Float}
+ * units - {String} Index into OpenLayers.INCHES_PER_UNIT hashtable.
+ *                  Default is degrees
+ * 
+ * Returns:
+ * {Float} The corresponding resolution given passed-in scale and unit 
+ *         parameters.
+ */
+OpenLayers.Util.getResolutionFromScale = function (scale, units) {
+
+    if (units == null) {
+        units = "degrees";
+    }
+
+    var normScale = OpenLayers.Util.normalizeScale(scale);
+
+    var resolution = 1 / (normScale * OpenLayers.INCHES_PER_UNIT[units]
+                                    * OpenLayers.DOTS_PER_INCH);
+    return resolution;
+};
+
+/**
+ * Function: getScaleFromResolution
+ * 
+ * Parameters:
+ * resolution - {Float}
+ * units - {String} Index into OpenLayers.INCHES_PER_UNIT hashtable.
+ *                  Default is degrees
+ * 
+ * Returns:
+ * {Float} The corresponding scale given passed-in resolution and unit 
+ *         parameters.
+ */
+OpenLayers.Util.getScaleFromResolution = function (resolution, units) {
+
+    if (units == null) {
+        units = "degrees";
+    }
+
+    var scale = resolution * OpenLayers.INCHES_PER_UNIT[units] *
+                    OpenLayers.DOTS_PER_INCH;
+    return scale;
+};
+
+/**
+ * Function: safeStopPropagation
+ * *Deprecated*. This function has been deprecated. Please use directly 
+ *     <OpenLayers.Event.stop> passing 'true' as the 2nd 
+ *     argument (preventDefault)
+ * 
+ * Safely stop the propagation of an event *without* preventing
+ *   the default browser action from occurring.
+ * 
+ * Parameter:
+ * evt - {Event}
+ */
+OpenLayers.Util.safeStopPropagation = function(evt) {
+    OpenLayers.Event.stop(evt, true);
+};
+
+/**
+ * Function: pagePositon
+ * Calculates the position of an element on the page. 
+ *
+ * Parameters:
+ * forElement - {DOMElement}
+ * 
+ * Returns:
+ * {Array} two item array, L value then T value.
+ */
+OpenLayers.Util.pagePosition = function(forElement) {
+    var valueT = 0, valueL = 0;
+
+    var element = forElement;
+    var child = forElement;
+    while(element) {
+
+        if(element == document.body) {
+            // FIXME: IE, when passed 'window' as the forElement, treats it as
+            // equal to document.body, but window.style fails, so getStyle
+            // fails, so we are paranoid and check this here. This check should
+            // probably move into element.getStyle in 2.6.
+            if(child && child.style && 
+               OpenLayers.Element.getStyle(child, 'position') == 'absolute') {
+                break;
+            }
+        }
+        
+        valueT += element.offsetTop  || 0;
+        valueL += element.offsetLeft || 0;
+
+        child = element;
+        try {
+            // wrapping this in a try/catch because IE chokes on the offsetParent
+            element = element.offsetParent;
+        } catch(e) {
+            OpenLayers.Console.error(OpenLayers.i18n(
+                                  "pagePositionFailed",{'elemId':element.id}));
+            break;
+        }
+    }
+
+    element = forElement;
+    while(element) {
+        valueT -= element.scrollTop  || 0;
+        valueL -= element.scrollLeft || 0;
+        element = element.parentNode;
+    }
+    
+    return [valueL, valueT];
+};
+
+
+/** 
+ * Function: isEquivalentUrl
+ * Test two URLs for equivalence. 
+ * 
+ * Setting 'ignoreCase' allows for case-independent comparison.
+ * 
+ * Comparison is based on: 
+ *  - Protocol
+ *  - Host (evaluated without the port)
+ *  - Port (set 'ignorePort80' to ignore "80" values)
+ *  - Hash ( set 'ignoreHash' to disable)
+ *  - Pathname (for relative <-> absolute comparison) 
+ *  - Arguments (so they can be out of order)
+ *  
+ * Parameters:
+ * url1 - {String}
+ * url2 - {String}
+ * options - {Object} Allows for customization of comparison:
+ *                    'ignoreCase' - Default is True
+ *                    'ignorePort80' - Default is True
+ *                    'ignoreHash' - Default is True
+ *
+ * Returns:
+ * {Boolean} Whether or not the two URLs are equivalent
+ */
+OpenLayers.Util.isEquivalentUrl = function(url1, url2, options) {
+    options = options || {};
+
+    OpenLayers.Util.applyDefaults(options, {
+        ignoreCase: true,
+        ignorePort80: true,
+        ignoreHash: true
+    });
+
+    var urlObj1 = OpenLayers.Util.createUrlObject(url1, options);
+    var urlObj2 = OpenLayers.Util.createUrlObject(url2, options);
+
+    //compare all keys (host, port, etc)
+    for(var key in urlObj1) {
+        if (options.test) {
+            alert(key + "\n1:" + urlObj1[key] + "\n2:" + urlObj2[key]);
+        }
+        var val1 = urlObj1[key];
+        var val2 = urlObj2[key];
+        
+        switch(key) {
+            case "args":
+                //do nothing, they'll be treated below
+                break;
+            case "host":
+            case "port":
+            case "protocol":
+                if ((val1 == "") || (val2 == "")) {
+                    //these will be blank for relative urls, so no need to 
+                    // compare them here -- call break. 
+                    // 
+                    break;
+                } 
+                // otherwise continue with default compare
+                //
+            default: 
+                if ( (key != "args") && (urlObj1[key] != urlObj2[key]) ) {
+                    return false;
+                }
+                break;
+        }
+        
+    }
+
+    // compare search args - irrespective of order
+    for(var key in urlObj1.args) {
+        if(urlObj1.args[key] != urlObj2.args[key]) {
+            return false;
+        }
+        delete urlObj2.args[key];
+    }
+    // urlObj2 shouldn't have any args left
+    for(var key in urlObj2.args) {
+        return false;
+    }
+    
+    return true;
+};
+
+/**
+ * Function: createUrlObject
+ * 
+ * Parameters:
+ * url - {String}
+ * options - {Object} A hash of options.  Can be one of:
+ *            ignoreCase: lowercase url,
+ *            ignorePort80: don't include explicit port if port is 80,
+ *            ignoreHash: Don't include part of url after the hash (#).
+ * 
+ * Returns:
+ * {Object} An object with separate url, a, port, host, and args parsed out 
+ *          and ready for comparison
+ */
+OpenLayers.Util.createUrlObject = function(url, options) {
+    options = options || {};
+
+    var urlObject = {};
+  
+    if (options.ignoreCase) {
+        url = url.toLowerCase(); 
+    }
+
+    var a = document.createElement('a');
+    a.href = url;
+    
+  //host (without port)
+    urlObject.host = a.host;
+    var port = a.port;
+    if (port.length <= 0) {
+        var newHostLength = urlObject.host.length - (port.length);
+        urlObject.host = urlObject.host.substring(0, newHostLength); 
+    }
+
+  //protocol
+    urlObject.protocol = a.protocol;  
+
+  //port
+    urlObject.port = ((port == "80") && (options.ignorePort80)) ? "" : port;
+                                                                     
+  //hash
+    urlObject.hash = (options.ignoreHash) ? "" : a.hash;  
+    
+  //args
+    var queryString = a.search;
+    if (!queryString) {
+        var qMark = url.indexOf("?");
+        queryString = (qMark != -1) ? url.substr(qMark) : "";
+    }
+    urlObject.args = OpenLayers.Util.getParameters(queryString);
+
+
+  //pathname (this part allows for relative <-> absolute comparison)
+    if ( ((urlObject.protocol == "file:") && (url.indexOf("file:") != -1)) || 
+         ((urlObject.protocol != "file:") && (urlObject.host != "")) ) {
+
+        urlObject.pathname = a.pathname;  
+
+        //Test to see if the pathname includes the arguments (Opera)
+        var qIndex = urlObject.pathname.indexOf("?");
+        if (qIndex != -1) {
+            urlObject.pathname = urlObject.pathname.substring(0, qIndex);
+        }
+
+    } else {
+        var relStr = OpenLayers.Util.removeTail(url);
+
+        var backs = 0;
+        do {
+            var index = relStr.indexOf("../");
+
+            if (index == 0) {
+                backs++;
+                relStr = relStr.substr(3);
+            } else if (index >= 0) {
+                var prevChunk = relStr.substr(0,index - 1);
+                
+                var slash = prevChunk.indexOf("/");
+                prevChunk = (slash != -1) ? prevChunk.substr(0, slash +1)
+                                          : "";
+                
+                var postChunk = relStr.substr(index + 3);                
+                relStr = prevChunk + postChunk;
+            }
+        } while(index != -1)
+
+        var windowAnchor = document.createElement("a");
+        var windowUrl = window.location.href;
+        if (options.ignoreCase) {
+            windowUrl = windowUrl.toLowerCase();
+        }
+        windowAnchor.href = windowUrl;
+
+      //set protocol of window
+        urlObject.protocol = windowAnchor.protocol;
+
+        var splitter = (windowAnchor.pathname.indexOf("/") != -1) ? "/" : "\\";
+        var dirs = windowAnchor.pathname.split(splitter);
+        dirs.pop(); //remove filename
+        while ((backs > 0) && (dirs.length > 0)) {
+            dirs.pop();
+            backs--;
+        }
+        relStr = dirs.join("/") + "/"+ relStr;
+        urlObject.pathname = relStr;
+    }
+    
+    if ((urlObject.protocol == "file:") || (urlObject.protocol == "")) {
+        urlObject.host = "localhost";
+    }
+
+    return urlObject; 
+};
+ 
+/**
+ * Function: removeTail
+ * Takes a url and removes everything after the ? and #
+ * 
+ * Parameters:
+ * url - {String} The url to process
+ * 
+ * Returns:
+ * {String} The string with all queryString and Hash removed
+ */
+OpenLayers.Util.removeTail = function(url) {
+    var head = null;
+    
+    var qMark = url.indexOf("?");
+    var hashMark = url.indexOf("#");
+
+    if (qMark == -1) {
+        head = (hashMark != -1) ? url.substr(0,hashMark) : url;
+    } else {
+        head = (hashMark != -1) ? url.substr(0,Math.min(qMark, hashMark)) 
+                                  : url.substr(0, qMark);
+    }
+    return head;
+};
+
+
+/**
+ * Function: getBrowserName
+ * 
+ * Returns:
+ * {String} A string which specifies which is the current 
+ *          browser in which we are running. 
+ * 
+ *          Currently-supported browser detection and codes:
+ *           * 'opera' -- Opera
+ *           * 'msie'  -- Internet Explorer
+ *           * 'safari' -- Safari
+ *           * 'firefox' -- FireFox
+ *           * 'mozilla' -- Mozilla
+ * 
+ *          If we are unable to property identify the browser, we 
+ *           return an empty string.
+ */
+OpenLayers.Util.getBrowserName = function() {
+    var browserName = "";
+    
+    var ua = navigator.userAgent.toLowerCase();
+    if ( ua.indexOf( "opera" ) != -1 ) {
+        browserName = "opera";
+    } else if ( ua.indexOf( "msie" ) != -1 ) {
+        browserName = "msie";
+    } else if ( ua.indexOf( "safari" ) != -1 ) {
+        browserName = "safari";
+    } else if ( ua.indexOf( "mozilla" ) != -1 ) {
+        if ( ua.indexOf( "firefox" ) != -1 ) {
+            browserName = "firefox";
+        } else {
+            browserName = "mozilla";
+        }
+    }
+    
+    return browserName;
+};
+
+
+
+    
+/**
+ * Method: getRenderedDimensions
+ * Renders the contentHTML offscreen to determine actual dimensions for
+ *     popup sizing. As we need layout to determine dimensions the content
+ *     is rendered -9999px to the left and absolute to ensure the 
+ *     scrollbars do not flicker
+ *     
+ * Parameters:
+ * size - {<OpenLayers.Size>} If either the 'w' or 'h' properties is 
+ *     specified, we fix that dimension of the div to be measured. This is 
+ *     useful in the case where we have a limit in one dimension and must 
+ *     therefore meaure the flow in the other dimension.
+ * 
+ * Returns:
+ * {OpenLayers.Size}
+ */
+OpenLayers.Util.getRenderedDimensions = function(contentHTML, size) {
+    
+    var w = h = null;
+    
+    // create temp container div with restricted size
+    var container = document.createElement("div");
+    container.style.overflow= "";
+    container.style.position = "absolute";
+    container.style.left = "-9999px";
+        
+    //fix a dimension, if specified.
+    if (size) {
+        if (size.w) {
+            w = container.style.width = size.w;
+        } else if (size.h) {
+            h = container.style.height = size.h;
+        }
+    }
+    
+    // create temp content div and assign content
+    var content = document.createElement("div");
+    content.innerHTML = contentHTML;
+    
+    // add content to restricted container 
+    container.appendChild(content);
+    
+    // append container to body for rendering
+    document.body.appendChild(container);
+    
+    // calculate scroll width of content and add corners and shadow width
+    if (!w) {
+        w = parseInt(content.scrollWidth);
+    
+        // update container width to allow height to adjust
+        container.style.width = w + "px";
+    }        
+    // capture height and add shadow and corner image widths
+    if (!h) {
+        h = parseInt(content.scrollHeight);
+    }
+
+    // remove elements
+    container.removeChild(content);
+    document.body.removeChild(container);
+    
+    return new OpenLayers.Size(w, h);
+};
+
+/**
+ * APIFunction: getScrollbarWidth
+ * This function has been modified by the OpenLayers from the original version,
+ *     written by Matthew Eernisse and released under the Apache 2 
+ *     license here:
+ * 
+ *     http://www.fleegix.org/articles/2006/05/30/getting-the-scrollbar-width-in-pixels
+ * 
+ *     It has been modified simply to cache its value, since it is physically 
+ *     impossible that this code could ever run in more than one browser at 
+ *     once. 
+ * 
+ * Returns:
+ * {Integer}
+ */
+OpenLayers.Util.getScrollbarWidth = function() {
+    
+    var scrollbarWidth = OpenLayers.Util._scrollbarWidth;
+    
+    if (scrollbarWidth == null) {
+        var scr = null;
+        var inn = null;
+        var wNoScroll = 0;
+        var wScroll = 0;
+    
+        // Outer scrolling div
+        scr = document.createElement('div');
+        scr.style.position = 'absolute';
+        scr.style.top = '-1000px';
+        scr.style.left = '-1000px';
+        scr.style.width = '100px';
+        scr.style.height = '50px';
+        // Start with no scrollbar
+        scr.style.overflow = 'hidden';
+    
+        // Inner content div
+        inn = document.createElement('div');
+        inn.style.width = '100%';
+        inn.style.height = '200px';
+    
+        // Put the inner div in the scrolling div
+        scr.appendChild(inn);
+        // Append the scrolling div to the doc
+        document.body.appendChild(scr);
+    
+        // Width of the inner div sans scrollbar
+        wNoScroll = inn.offsetWidth;
+    
+        // Add the scrollbar
+        scr.style.overflow = 'scroll';
+        // Width of the inner div width scrollbar
+        wScroll = inn.offsetWidth;
+    
+        // Remove the scrolling div from the doc
+        document.body.removeChild(document.body.lastChild);
+    
+        // Pixel width of the scroller
+        OpenLayers.Util._scrollbarWidth = (wNoScroll - wScroll);
+        scrollbarWidth = OpenLayers.Util._scrollbarWidth;
+    }
+
+    return scrollbarWidth;
+};
+/* ======================================================================
+    OpenLayers/Ajax.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+OpenLayers.ProxyHost = "";
+//OpenLayers.ProxyHost = "examples/proxy.cgi?url=";
+
+/**
+ * Ajax reader for OpenLayers
+ *
+ *  @uri url to do remote XML http get
+ *  @param {String} 'get' format params (x=y&a=b...)
+ *  @who object to handle callbacks for this request
+ *  @complete  the function to be called on success 
+ *  @failure  the function to be called on failure
+ *  
+ *   example usage from a caller:
+ *  
+ *     caps: function(request) {
+ *      -blah-  
+ *     },
+ *  
+ *     OpenLayers.loadURL(url,params,this,caps);
+ *
+ * Notice the above example does not provide an error handler; a default empty
+ * handler is provided which merely logs the error if a failure handler is not 
+ * supplied
+ *
+ */
+
+
+/** 
+* @param {} request
+*/
+OpenLayers.nullHandler = function(request) {
+    alert(OpenLayers.i18n("unhandledRequest", {'statusText':request.statusText}));
+};
+
+/** 
+ * Function: loadURL
+ * Background load a document.
+ *
+ * Parameters:
+ * uri - {String} URI of source doc
+ * params - {String} Params on get (doesnt seem to work)
+ * caller - {Object} object which gets callbacks
+ * onComplete - {Function} Optional callback for success.  The callback
+ *     will be called with this set to caller and will receive the request
+ *     object as an argument.
+ * onFailure - {Function} Optional callback for failure.  In the event of
+ *     a failure, the callback will be called with this set to caller and will
+ *     receive the request object as an argument.
+ *
+ * Returns:
+ * {XMLHttpRequest}  The request object.  To abort loading, call
+ *     request.abort().
+ */
+OpenLayers.loadURL = function(uri, params, caller,
+                                  onComplete, onFailure) {
+
+    var success = (onComplete) ? OpenLayers.Function.bind(onComplete, caller)
+                                : OpenLayers.nullHandler;
+
+    var failure = (onFailure) ? OpenLayers.Function.bind(onFailure, caller)
+                           : OpenLayers.nullHandler;
+
+    // from prototype.js
+    var request = new OpenLayers.Ajax.Request(
+        uri, 
+        {
+            method: 'get', 
+            parameters: params,
+            onComplete: success, 
+            onFailure: failure
+        }
+    );
+    return request.transport;
+};
+
+/** 
+ * Function: parseXMLString
+ * Parse XML into a doc structure
+ * 
+ * Parameters:
+ * text - {String} 
+ * 
+ * Returns:
+ * {?} Parsed AJAX Responsev
+ */
+OpenLayers.parseXMLString = function(text) {
+
+    //MS sucks, if the server is bad it dies
+    var index = text.indexOf('<');
+    if (index > 0) {
+        text = text.substring(index);
+    }
+
+    var ajaxResponse = OpenLayers.Util.Try(
+        function() {
+            var xmldom = new ActiveXObject('Microsoft.XMLDOM');
+            xmldom.loadXML(text);
+            return xmldom;
+        },
+        function() {
+            return new DOMParser().parseFromString(text, 'text/xml');
+        },
+        function() {
+            var req = new XMLHttpRequest();
+            req.open("GET", "data:" + "text/xml" +
+                     ";charset=utf-8," + encodeURIComponent(text), false);
+            if (req.overrideMimeType) {
+                req.overrideMimeType("text/xml");
+            }
+            req.send(null);
+            return req.responseXML;
+        }
+    );
+
+    return ajaxResponse;
+};
+
+
+/**
+ * Namespace: OpenLayers.Ajax
+ */
+OpenLayers.Ajax = {
+
+    /**
+     * Method: emptyFunction
+     */
+    emptyFunction: function () {},
+
+    /**
+     * Method: getTransport
+     * 
+     * Returns: 
+     * {Object} Transport mechanism for whichever browser we're in, or false if
+     *          none available.
+     */
+    getTransport: function() {
+        return OpenLayers.Util.Try(
+            function() {return new XMLHttpRequest();},
+            function() {return new ActiveXObject('Msxml2.XMLHTTP');},
+            function() {return new ActiveXObject('Microsoft.XMLHTTP');}
+        ) || false;
+    },
+
+    /**
+     * Property: activeRequestCount
+     * {Integer}
+     */
+    activeRequestCount: 0
+};
+
+/**
+ * Namespace: OpenLayers.Ajax.Responders
+ * {Object}
+ */
+OpenLayers.Ajax.Responders = {
+  
+    /**
+     * Property: responders
+     * {Array}
+     */
+    responders: [],
+
+    /**
+     * Method: register
+     *  
+     * Parameters:
+     * responderToAdd - {?}
+     */
+    register: function(responderToAdd) {
+        for (var i = 0; i < this.responders.length; i++){
+            if (responderToAdd == this.responders[i]){
+                return;
+            }
+        }
+        this.responders.push(responderToAdd);
+    },
+
+    /**
+     * Method: unregister
+     *  
+     * Parameters:
+     * responderToRemove - {?}
+     */
+    unregister: function(responderToRemove) {
+        OpenLayers.Util.removeItem(this.reponders, responderToRemove);
+    },
+
+    /**
+     * Method: dispatch
+     * 
+     * Parameters:
+     * callback - {?}
+     * request - {?}
+     * transport - {?}
+     */
+    dispatch: function(callback, request, transport) {
+        var responder;
+        for (var i = 0; i < this.responders.length; i++) {
+            responder = this.responders[i];
+     
+            if (responder[callback] && 
+                typeof responder[callback] == 'function') {
+                try {
+                    responder[callback].apply(responder, 
+                                              [request, transport]);
+                } catch (e) {}
+            }
+        }
+    }
+};
+
+OpenLayers.Ajax.Responders.register({
+    /** 
+     * Function: onCreate
+     */
+    onCreate: function() {
+        OpenLayers.Ajax.activeRequestCount++;
+    },
+
+    /**
+     * Function: onComplete
+     */
+     onComplete: function() {
+         OpenLayers.Ajax.activeRequestCount--;
+     }
+});
+
+/**
+ * Class: OpenLayers.Ajax.Base
+ */
+OpenLayers.Ajax.Base = OpenLayers.Class({
+      
+    /**
+     * Constructor: OpenLayers.Ajax.Base
+     * 
+     * Parameters: 
+     * options - {Object}
+     */
+    initialize: function(options) {
+        this.options = {
+            method:       'post',
+            asynchronous: true,
+            contentType:  'application/xml',
+            parameters:   ''
+        };
+        OpenLayers.Util.extend(this.options, options || {});
+        
+        this.options.method = this.options.method.toLowerCase();
+        
+        if (typeof this.options.parameters == 'string') {
+            this.options.parameters = 
+                OpenLayers.Util.getParameters(this.options.parameters);
+        }
+    }
+});
+
+/**
+ * Class: OpenLayers.Ajax.Request
+ *
+ * Inherit:
+ *  - <OpenLayers.Ajax.Base>
+ */
+OpenLayers.Ajax.Request = OpenLayers.Class(OpenLayers.Ajax.Base, {
+
+    /**
+     * Property: _complete
+     *
+     * {Boolean}
+     */
+    _complete: false,
+      
+    /**
+     * Constructor: OpenLayers.Ajax.Request
+     * 
+     * Parameters: 
+     * url - {String}
+     * options - {Object}
+     */
+    initialize: function(url, options) {
+        OpenLayers.Ajax.Base.prototype.initialize.apply(this, [options]);
+        
+        if (OpenLayers.ProxyHost && OpenLayers.String.startsWith(url, "http")) {
+            url = OpenLayers.ProxyHost + encodeURIComponent(url);
+        }
+        
+        this.transport = OpenLayers.Ajax.getTransport();
+        this.request(url);
+    },
+
+    /**
+     * Method: request
+     * 
+     * Parameters:
+     * url - {String}
+     */
+    request: function(url) {
+        this.url = url;
+        this.method = this.options.method;
+        var params = OpenLayers.Util.extend({}, this.options.parameters);
+        
+        if (this.method != 'get' && this.method != 'post') {
+            // simulate other verbs over post
+            params['_method'] = this.method;
+            this.method = 'post';
+        }
+
+        this.parameters = params;        
+        
+        if (params = OpenLayers.Util.getParameterString(params)) {
+            // when GET, append parameters to URL
+            if (this.method == 'get') {
+                this.url += ((this.url.indexOf('?') > -1) ? '&' : '?') + params;
+            } else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
+                params += '&_=';
+            }
+        }
+        try {
+            var response = new OpenLayers.Ajax.Response(this);
+            if (this.options.onCreate) {
+                this.options.onCreate(response);
+            }
+            
+            OpenLayers.Ajax.Responders.dispatch('onCreate', 
+                                                this, 
+                                                response);
+    
+            this.transport.open(this.method.toUpperCase(), 
+                                this.url,
+                                this.options.asynchronous);
+    
+            if (this.options.asynchronous) {
+                window.setTimeout(
+                    OpenLayers.Function.bind(this.respondToReadyState, this, 1),
+                    10);
+            }
+            
+            this.transport.onreadystatechange = 
+                OpenLayers.Function.bind(this.onStateChange, this);    
+            this.setRequestHeaders();
+    
+            this.body =  this.method == 'post' ?
+                (this.options.postBody || params) : null;
+            this.transport.send(this.body);
+    
+            // Force Firefox to handle ready state 4 for synchronous requests
+            if (!this.options.asynchronous && 
+                this.transport.overrideMimeType) {
+                this.onStateChange();
+            }
+        } catch (e) {
+            this.dispatchException(e);
+        }
+    },
+
+    /**
+     * Method: onStateChange
+     */
+    onStateChange: function() {
+        var readyState = this.transport.readyState;
+        if (readyState > 1 && !((readyState == 4) && this._complete)) {
+            this.respondToReadyState(this.transport.readyState);
+        }
+    },
+     
+    /**
+     * Method: setRequestHeaders
+     */
+    setRequestHeaders: function() {
+        var headers = {
+            'X-Requested-With': 'XMLHttpRequest',
+            'Accept': 'text/javascript, text/html, application/xml, text/xml, */*',
+            'OpenLayers': true
+        };
+
+        if (this.method == 'post') {
+            headers['Content-type'] = this.options.contentType +
+                (this.options.encoding ? '; charset=' + this.options.encoding : '');
+    
+            /* Force "Connection: close" for older Mozilla browsers to work
+             * around a bug where XMLHttpRequest sends an incorrect
+             * Content-length header. See Mozilla Bugzilla #246651.
+             */
+            if (this.transport.overrideMimeType &&
+                (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005) {
+                headers['Connection'] = 'close';
+            }
+        }
+        // user-defined headers
+        if (typeof this.options.requestHeaders == 'object') {    
+            var extras = this.options.requestHeaders;
+            
+            if (typeof extras.push == 'function') {
+                for (var i = 0, length = extras.length; i < length; i += 2) {
+                    headers[extras[i]] = extras[i+1];
+                }
+            } else {
+                for (var i in extras) {
+                    headers[i] = pair[i];
+                }
+            }
+        }
+        
+        for (var name in headers) {
+            this.transport.setRequestHeader(name, headers[name]);
+        }
+    },
+    
+    /**
+     * Method: success
+     *
+     * Returns:
+     * {Boolean} - 
+     */
+    success: function() {
+        var status = this.getStatus();
+        return !status || (status >=200 && status < 300);
+    },
+    
+    /**
+     * Method: getStatus
+     *
+     * Returns:
+     * {Integer} - Status
+     */
+    getStatus: function() {
+        try {
+            return this.transport.status || 0;
+        } catch (e) {
+            return 0;
+        }
+    },
+
+    /**
+     * Method: respondToReadyState
+     *
+     * Parameters:
+     * readyState - {?}
+     */
+    respondToReadyState: function(readyState) {
+        var state = OpenLayers.Ajax.Request.Events[readyState];
+        var response = new OpenLayers.Ajax.Response(this);
+    
+        if (state == 'Complete') {
+            try {
+                this._complete = true;
+                (this.options['on' + response.status] ||
+                    this.options['on' + (this.success() ? 'Success' : 'Failure')] ||
+                    OpenLayers.Ajax.emptyFunction)(response);
+            } catch (e) {
+                this.dispatchException(e);
+            }
+    
+            var contentType = response.getHeader('Content-type');
+        }
+    
+        try {
+            (this.options['on' + state] || 
+             OpenLayers.Ajax.emptyFunction)(response);
+             OpenLayers.Ajax.Responders.dispatch('on' + state, 
+                                                 this, 
+                                                 response);
+        } catch (e) {
+            this.dispatchException(e);
+        }
+    
+        if (state == 'Complete') {
+            // avoid memory leak in MSIE: clean up
+            this.transport.onreadystatechange = OpenLayers.Ajax.emptyFunction;
+        }
+    },
+    
+    /**
+     * Method: getHeader
+     * 
+     * Parameters:
+     * name - {String} Header name
+     *
+     * Returns:
+     * {?} - response header for the given name
+     */
+    getHeader: function(name) {
+        try {
+            return this.transport.getResponseHeader(name);
+        } catch (e) {
+            return null;
+        }
+    },
+
+    /**
+     * Method: dispatchException
+     * If the optional onException function is set, execute it
+     * and then dispatch the call to any other listener registered
+     * for onException.
+     * 
+     * If no optional onException function is set, we suspect that
+     * the user may have also not used
+     * OpenLayers.Ajax.Responders.register to register a listener
+     * for the onException call.  To make sure that something
+     * gets done with this exception, only dispatch the call if there
+     * are listeners.
+     *
+     * If you explicitly want to swallow exceptions, set
+     * request.options.onException to an empty function (function(){})
+     * or register an empty function with <OpenLayers.Ajax.Responders>
+     * for onException.
+     * 
+     * Parameters:
+     * exception - {?}
+     */
+    dispatchException: function(exception) {
+        var handler = this.options.onException;
+        if(handler) {
+            // call options.onException and alert any other listeners
+            handler(this, exception);
+            OpenLayers.Ajax.Responders.dispatch('onException', this, exception);
+        } else {
+            // check if there are any other listeners
+            var listener = false;
+            var responders = OpenLayers.Ajax.Responders.responders;
+            for (var i = 0; i < responders.length; i++) {
+                if(responders[i].onException) {
+                    listener = true;
+                    break;
+                }
+            }
+            if(listener) {
+                // call all listeners
+                OpenLayers.Ajax.Responders.dispatch('onException', this, exception);
+            } else {
+                // let the exception through
+                throw exception;
+            }
+        }
+    }
+});
+
+/** 
+ * Property: Events
+ * {Array(String)}
+ */
+OpenLayers.Ajax.Request.Events =
+  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
+
+/**
+ * Class: OpenLayers.Ajax.Response
+ */
+OpenLayers.Ajax.Response = OpenLayers.Class({
+
+    /**
+     * Property: status
+     *
+     * {Integer}
+     */
+    status: 0,
+    
+
+    /**
+     * Property: statusText
+     *
+     * {String}
+     */
+    statusText: '',
+      
+    /**
+     * Constructor: OpenLayers.Ajax.Response
+     * 
+     * Parameters: 
+     * request - {Object}
+     */
+    initialize: function(request) {
+        this.request = request;
+        var transport = this.transport = request.transport,
+            readyState = this.readyState = transport.readyState;
+        
+        if ((readyState > 2 &&
+            !(!!(window.attachEvent && !window.opera))) ||
+            readyState == 4) {
+            this.status       = this.getStatus();
+            this.statusText   = this.getStatusText();
+            this.responseText = transport.responseText == null ?
+                '' : String(transport.responseText);
+        }
+        
+        if(readyState == 4) {
+            var xml = transport.responseXML;
+            this.responseXML  = xml === undefined ? null : xml;
+        }
+    },
+    
+    /**
+     * Method: getStatus
+     */
+    getStatus: OpenLayers.Ajax.Request.prototype.getStatus,
+    
+    /**
+     * Method: getStatustext
+     *
+     * Returns:
+     * {String} - statusText
+     */
+    getStatusText: function() {
+        try {
+            return this.transport.statusText || '';
+        } catch (e) {
+            return '';
+        }
+    },
+    
+    /**
+     * Method: getHeader
+     */
+    getHeader: OpenLayers.Ajax.Request.prototype.getHeader,
+    
+    /** 
+     * Method: getResponseHeader
+     *
+     * Returns:
+     * {?} - response header for given name
+     */
+    getResponseHeader: function(name) {
+        return this.transport.getResponseHeader(name);
+    }
+});
+
+
+/**
+ * Function: getElementsByTagNameNS
+ * 
+ * Parameters:
+ * parentnode - {?}
+ * nsuri - {?}
+ * nsprefix - {?}
+ * tagname - {?}
+ * 
+ * Returns:
+ * {?}
+ */
+OpenLayers.Ajax.getElementsByTagNameNS  = function(parentnode, nsuri, 
+                                                   nsprefix, tagname) {
+    var elem = null;
+    if (parentnode.getElementsByTagNameNS) {
+        elem = parentnode.getElementsByTagNameNS(nsuri, tagname);
+    } else {
+        elem = parentnode.getElementsByTagName(nsprefix + ':' + tagname);
+    }
+    return elem;
+};
+
+
+/**
+ * Function: serializeXMLToString
+ * Wrapper function around XMLSerializer, which doesn't exist/work in
+ *     IE/Safari. We need to come up with a way to serialize in those browser:
+ *     for now, these browsers will just fail. #535, #536
+ *
+ * Parameters: 
+ * xmldom {XMLNode} xml dom to serialize
+ * 
+ * Returns:
+ * {?}
+ */
+OpenLayers.Ajax.serializeXMLToString = function(xmldom) {
+    var serializer = new XMLSerializer();
+    var data = serializer.serializeToString(xmldom);
+    return data;
+};
+/* ======================================================================
+    OpenLayers/Console.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Namespace: OpenLayers.Console
+ * The OpenLayers.Console namespace is used for debugging and error logging.
+ * If the Firebug Lite (../Firebug/firebug.js) is included before this script,
+ * calls to OpenLayers.Console methods will get redirected to window.console.
+ * This makes use of the Firebug extension where available and allows for
+ * cross-browser debugging Firebug style.
+ *
+ * Note:
+ * Note that behavior will differ with the Firebug extention and Firebug Lite.
+ * Most notably, the Firebug Lite console does not currently allow for
+ * hyperlinks to code or for clicking on object to explore their properties.
+ * 
+ */
+OpenLayers.Console = {
+    /**
+     * Create empty functions for all console methods.  The real value of these
+     * properties will be set if Firebug Lite (../Firebug/firebug.js script) is
+     * included.  We explicitly require the Firebug Lite script to trigger
+     * functionality of the OpenLayers.Console methods.
+     */
+    
+    /**
+     * APIFunction: log
+     * Log an object in the console.  The Firebug Lite console logs string
+     * representation of objects.  Given multiple arguments, they will
+     * be cast to strings and logged with a space delimiter.  If the first
+     * argument is a string with printf-like formatting, subsequent arguments
+     * will be used in string substitution.  Any additional arguments (beyond
+     * the number substituted in a format string) will be appended in a space-
+     * delimited line.
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    log: function() {},
+
+    /**
+     * APIFunction: debug
+     * Writes a message to the console, including a hyperlink to the line
+     * where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    debug: function() {},
+
+    /**
+     * APIFunction: info
+     * Writes a message to the console with the visual "info" icon and color
+     * coding and a hyperlink to the line where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    info: function() {},
+
+    /**
+     * APIFunction: warn
+     * Writes a message to the console with the visual "warning" icon and
+     * color coding and a hyperlink to the line where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    warn: function() {},
+
+    /**
+     * APIFunction: error
+     * Writes a message to the console with the visual "error" icon and color
+     * coding and a hyperlink to the line where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    error: function() {},
+
+    /**
+     * APIFunction: assert
+     * Tests that an expression is true. If not, it will write a message to
+     * the console and throw an exception.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    assert: function() {},
+
+    /**
+     * APIFunction: dir
+     * Prints an interactive listing of all properties of the object. This
+     * looks identical to the view that you would see in the DOM tab.
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    dir: function() {},
+
+    /**
+     * APIFunction: dirxml
+     * Prints the XML source tree of an HTML or XML element. This looks
+     * identical to the view that you would see in the HTML tab. You can click
+     * on any node to inspect it in the HTML tab.
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    dirxml: function() {},
+
+    /**
+     * APIFunction: trace
+     * Prints an interactive stack trace of JavaScript execution at the point
+     * where it is called.  The stack trace details the functions on the stack,
+     * as well as the values that were passed as arguments to each function.
+     * You can click each function to take you to its source in the Script tab,
+     * and click each argument value to inspect it in the DOM or HTML tabs.
+     * 
+     */
+    trace: function() {},
+
+    /**
+     * APIFunction: group
+     * Writes a message to the console and opens a nested block to indent all
+     * future messages sent to the console. Call OpenLayers.Console.groupEnd()
+     * to close the block.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    group: function() {},
+
+    /**
+     * APIFunction: groupEnd
+     * Closes the most recently opened block created by a call to
+     * OpenLayers.Console.group
+     */
+    groupEnd: function() {},
+    
+    /**
+     * APIFunction: time
+     * Creates a new timer under the given name. Call
+     * OpenLayers.Console.timeEnd(name)
+     * with the same name to stop the timer and print the time elapsed.
+     *
+     * Parameters:
+     * name - {String}
+     */
+    time: function() {},
+
+    /**
+     * APIFunction: timeEnd
+     * Stops a timer created by a call to OpenLayers.Console.time(name) and
+     * writes the time elapsed.
+     *
+     * Parameters:
+     * name - {String}
+     */
+    timeEnd: function() {},
+
+    /**
+     * APIFunction: profile
+     * Turns on the JavaScript profiler. The optional argument title would
+     * contain the text to be printed in the header of the profile report.
+     *
+     * This function is not currently implemented in Firebug Lite.
+     * 
+     * Parameters:
+     * title - {String} Optional title for the profiler
+     */
+    profile: function() {},
+
+    /**
+     * APIFunction: profileEnd
+     * Turns off the JavaScript profiler and prints its report.
+     * 
+     * This function is not currently implemented in Firebug Lite.
+     */
+    profileEnd: function() {},
+
+    /**
+     * APIFunction: count
+     * Writes the number of times that the line of code where count was called
+     * was executed. The optional argument title will print a message in
+     * addition to the number of the count.
+     *
+     * This function is not currently implemented in Firebug Lite.
+     *
+     * Parameters:
+     * title - {String} Optional title to be printed with count
+     */
+    count: function() {},
+
+    CLASS_NAME: "OpenLayers.Console"
+};
+
+/**
+ * Execute an anonymous function to extend the OpenLayers.Console namespace
+ * if the firebug.js script is included.  This closure is used so that the
+ * "scripts" and "i" variables don't pollute the global namespace.
+ */
+(function() {
+    /**
+     * If Firebug Lite is included (before this script), re-route all
+     * OpenLayers.Console calls to the console object.
+     */
+    if(window.console) {
+        var scripts = document.getElementsByTagName("script");
+        for(var i=0; i<scripts.length; ++i) {
+            if(scripts[i].src.indexOf("firebug.js") != -1) {
+                OpenLayers.Util.extend(OpenLayers.Console, console);
+                break;
+            }
+        }
+    }
+})();
+/* ======================================================================
+    OpenLayers/BaseTypes/Size.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Class: OpenLayers.Size
+ * Instances of this class represent a width/height pair
+ */
+OpenLayers.Size = OpenLayers.Class({
+
+    /**
+     * APIProperty: w
+     * {Number} width
+     */
+    w: 0.0,
+    
+    /**
+     * APIProperty: h
+     * {Number} height
+     */
+    h: 0.0,
+
+
+    /**
+     * Constructor: OpenLayers.Size
+     * Create an instance of OpenLayers.Size
+     *
+     * Parameters:
+     * w - {Number} width
+     * h - {Number} height
+     */
+    initialize: function(w, h) {
+        this.w = parseFloat(w);
+        this.h = parseFloat(h);
+    },
+
+    /**
+     * Method: toString
+     * Return the string representation of a size object
+     *
+     * Returns:
+     * {String} The string representation of OpenLayers.Size object. 
+     * (ex. <i>"w=55,h=66"</i>)
+     */
+    toString:function() {
+        return ("w=" + this.w + ",h=" + this.h);
+    },
+
+    /**
+     * APIMethod: clone
+     * Create a clone of this size object
+     *
+     * Returns:
+     * {<OpenLayers.Size>} A new OpenLayers.Size object with the same w and h
+     * values
+     */
+    clone:function() {
+        return new OpenLayers.Size(this.w, this.h);
+    },
+
+    /**
+     *
+     * APIMethod: equals
+     * Determine where this size is equal to another
+     *
+     * Parameters:
+     * sz - {<OpenLayers.Size>}
+     *
+     * Returns: 
+     * {Boolean} The passed in size has the same h and w properties as this one.
+     * Note that if sz passed in is null, returns false.
+     *
+     */
+    equals:function(sz) {
+        var equals = false;
+        if (sz != null) {
+            equals = ((this.w == sz.w && this.h == sz.h) ||
+                      (isNaN(this.w) && isNaN(this.h) && isNaN(sz.w) && isNaN(sz.h)));
+        }
+        return equals;
+    },
+
+    CLASS_NAME: "OpenLayers.Size"
+});
+/* ======================================================================
+    OpenLayers/BaseTypes/Bounds.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Class: OpenLayers.Bounds
+ * Instances of this class represent bounding boxes.  Data stored as left,
+ * bottom, right, top floats. All values are initialized to null, however,
+ * you should make sure you set them before using the bounds for anything.
+ * 
+ * Possible use case:
+ * > bounds = new OpenLayers.Bounds();
+ * > bounds.extend(new OpenLayers.LonLat(4,5));
+ * > bounds.extend(new OpenLayers.LonLat(5,6));
+ * > bounds.toBBOX(); // returns 4,5,5,6
+ */
+OpenLayers.Bounds = OpenLayers.Class({
+
+    /**
+     * Property: left
+     * {Number} Minimum horizontal coordinate.
+     */
+    left: null,
+
+    /**
+     * Property: bottom
+     * {Number} Minimum vertical coordinate.
+     */
+    bottom: null,
+
+    /**
+     * Property: right
+     * {Number} Maximum horizontal coordinate.
+     */
+    right: null,
+
+    /**
+     * Property: top
+     * {Number} Maximum vertical coordinate.
+     */
+    top: null,    
+
+    /**
+     * Constructor: OpenLayers.Bounds
+     * Construct a new bounds object.
+     *
+     * Parameters:
+     * left - {Number} The left bounds of the box.  Note that for width
+     *        calculations, this is assumed to be less than the right value.
+     * bottom - {Number} The bottom bounds of the box.  Note that for height
+     *          calculations, this is assumed to be more than the top value.
+     * right - {Number} The right bounds.
+     * top - {Number} The top bounds.
+     */
+    initialize: function(left, bottom, right, top) {
+        if (left != null) {
+            this.left = parseFloat(left);
+        }
+        if (bottom != null) {
+            this.bottom = parseFloat(bottom);
+        }
+        if (right != null) {
+            this.right = parseFloat(right);
+        }
+        if (top != null) {
+            this.top = parseFloat(top);
+        }
+    },
+
+    /**
+     * Method: clone
+     * Create a cloned instance of this bounds.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} A fresh copy of the bounds
+     */
+    clone:function() {
+        return new OpenLayers.Bounds(this.left, this.bottom, 
+                                     this.right, this.top);
+    },
+
+    /**
+     * Method: equals
+     * Test a two bounds for equivalence.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     *
+     * Returns:
+     * {Boolean} The passed-in bounds object has the same left,
+     *           right, top, bottom components as this.  Note that if bounds 
+     *           passed in is null, returns false.
+     */
+    equals:function(bounds) {
+        var equals = false;
+        if (bounds != null) {
+            equals = ((this.left == bounds.left) && 
+                      (this.right == bounds.right) &&
+                      (this.top == bounds.top) && 
+                      (this.bottom == bounds.bottom));
+        }
+        return equals;
+    },
+
+    /** 
+     * APIMethod: toString
+     * 
+     * Returns:
+     * {String} String representation of bounds object. 
+     *          (ex.<i>"left-bottom=(5,42) right-top=(10,45)"</i>)
+     */
+    toString:function() {
+        return ( "left-bottom=(" + this.left + "," + this.bottom + ")"
+                 + " right-top=(" + this.right + "," + this.top + ")" );
+    },
+
+    /**
+     * APIMethod: toArray
+     *
+     * Returns:
+     * {Array} array of left, bottom, right, top
+     */
+    toArray: function() {
+        return [this.left, this.bottom, this.right, this.top];
+    },    
+
+    /** 
+     * APIMethod: toBBOX
+     * 
+     * Parameters:
+     * decimal - {Integer} How many significant digits in the bbox coords?
+     *                     Default is 6
+     * 
+     * Returns:
+     * {String} Simple String representation of bounds object.
+     *          (ex. <i>"5,42,10,45"</i>)
+     */
+    toBBOX:function(decimal) {
+        if (decimal== null) {
+            decimal = 6; 
+        }
+        var mult = Math.pow(10, decimal);
+        var bbox = Math.round(this.left * mult) / mult + "," + 
+                   Math.round(this.bottom * mult) / mult + "," + 
+                   Math.round(this.right * mult) / mult + "," + 
+                   Math.round(this.top * mult) / mult;
+
+        return bbox;
+    },
+    
+    /**
+     * APIMethod: toGeometry
+     * Create a new polygon geometry based on this bounds.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Polygon>} A new polygon with the coordinates
+     *     of this bounds.
+     */
+    toGeometry: function() {
+        return new OpenLayers.Geometry.Polygon([
+            new OpenLayers.Geometry.LinearRing([
+                new OpenLayers.Geometry.Point(this.left, this.bottom),
+                new OpenLayers.Geometry.Point(this.right, this.bottom),
+                new OpenLayers.Geometry.Point(this.right, this.top),
+                new OpenLayers.Geometry.Point(this.left, this.top)
+            ])
+        ]);
+    },
+    
+    /**
+     * APIMethod: getWidth
+     * 
+     * Returns:
+     * {Float} The width of the bounds
+     */
+    getWidth:function() {
+        return (this.right - this.left);
+    },
+
+    /**
+     * APIMethod: getHeight
+     * 
+     * Returns:
+     * {Float} The height of the bounds (top minus bottom).
+     */
+    getHeight:function() {
+        return (this.top - this.bottom);
+    },
+
+    /**
+     * APIMethod: getSize
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} The size of the box.
+     */
+    getSize:function() {
+        return new OpenLayers.Size(this.getWidth(), this.getHeight());
+    },
+
+    /**
+     * APIMethod: getCenterPixel
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} The center of the bounds in pixel space.
+     */
+    getCenterPixel:function() {
+        return new OpenLayers.Pixel( (this.left + this.right) / 2,
+                                     (this.bottom + this.top) / 2);
+    },
+
+    /**
+     * APIMethod: getCenterLonLat
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} The center of the bounds in map space.
+     */
+    getCenterLonLat:function() {
+        return new OpenLayers.LonLat( (this.left + this.right) / 2,
+                                      (this.bottom + this.top) / 2);
+    },
+
+    /**
+     * APIMethod: add
+     * 
+     * Parameters:
+     * x - {Float}
+     * y - {Float}
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A new bounds whose coordinates are the same as
+     *     this, but shifted by the passed-in x and y values.
+     */
+    add:function(x, y) {
+        if ( (x == null) || (y == null) ) {
+            var msg = OpenLayers.i18n("boundsAddError");
+            OpenLayers.Console.error(msg);
+            return null;
+        }
+        return new OpenLayers.Bounds(this.left + x, this.bottom + y,
+                                     this.right + x, this.top + y);
+    },
+    
+    /**
+     * APIMethod: extend
+     * Extend the bounds to include the point, lonlat, or bounds specified.
+     *     Note, this function assumes that left < right and bottom < top.
+     * 
+     * Parameters: 
+     * object - {Object} Can be LonLat, Point, or Bounds
+     */
+    extend:function(object) {
+        var bounds = null;
+        if (object) {
+            switch(object.CLASS_NAME) {
+                case "OpenLayers.LonLat":    
+                    bounds = new OpenLayers.Bounds(object.lon, object.lat,
+                                                    object.lon, object.lat);
+                    break;
+                case "OpenLayers.Geometry.Point":
+                    bounds = new OpenLayers.Bounds(object.x, object.y,
+                                                    object.x, object.y);
+                    break;
+                    
+                case "OpenLayers.Bounds":    
+                    bounds = object;
+                    break;
+            }
+    
+            if (bounds) {
+                if ( (this.left == null) || (bounds.left < this.left)) {
+                    this.left = bounds.left;
+                }
+                if ( (this.bottom == null) || (bounds.bottom < this.bottom) ) {
+                    this.bottom = bounds.bottom;
+                } 
+                if ( (this.right == null) || (bounds.right > this.right) ) {
+                    this.right = bounds.right;
+                }
+                if ( (this.top == null) || (bounds.top > this.top) ) { 
+                    this.top = bounds.top;
+                }
+            }
+        }
+    },
+
+    /**
+     * APIMethod: containsLonLat
+     * 
+     * Parameters:
+     * ll - {<OpenLayers.LonLat>}
+     * inclusive - {Boolean} Whether or not to include the border.
+     *     Default is true.
+     *
+     * Returns:
+     * {Boolean} The passed-in lonlat is within this bounds.
+     */
+    containsLonLat:function(ll, inclusive) {
+        return this.contains(ll.lon, ll.lat, inclusive);
+    },
+
+    /**
+     * APIMethod: containsPixel
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     * inclusive - {Boolean} Whether or not to include the border. Default is
+     *     true.
+     *
+     * Returns:
+     * {Boolean} The passed-in pixel is within this bounds.
+     */
+    containsPixel:function(px, inclusive) {
+        return this.contains(px.x, px.y, inclusive);
+    },
+    
+    /**
+     * APIMethod: contains
+     * 
+     * Parameters:
+     * x - {Float}
+     * y - {Float}
+     * inclusive - {Boolean} Whether or not to include the border. Default is
+     *     true.
+     *
+     * Returns:
+     * {Boolean} Whether or not the passed-in coordinates are within this
+     *     bounds.
+     */
+    contains:function(x, y, inclusive) {
+    
+        //set default
+        if (inclusive == null) {
+            inclusive = true;
+        }
+        
+        var contains = false;
+        if (inclusive) {
+            contains = ((x >= this.left) && (x <= this.right) && 
+                        (y >= this.bottom) && (y <= this.top));
+        } else {
+            contains = ((x > this.left) && (x < this.right) && 
+                        (y > this.bottom) && (y < this.top));
+        }              
+        return contains;
+    },
+
+    /**
+     * APIMethod: intersectsBounds
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * inclusive - {Boolean} Whether or not to include the border.  Default
+     *     is true.
+     *
+     * Returns:
+     * {Boolean} The passed-in OpenLayers.Bounds object intersects this bounds.
+     *     Simple math just check if either contains the other, allowing for
+     *     partial.
+     */
+    intersectsBounds:function(bounds, inclusive) {
+
+        if (inclusive == null) {
+            inclusive = true;
+        }
+        var inBottom = (bounds.bottom == this.bottom && bounds.top == this.top) ?
+                    true : (((bounds.bottom > this.bottom) && (bounds.bottom < this.top)) || 
+                           ((this.bottom > bounds.bottom) && (this.bottom < bounds.top))); 
+        var inTop = (bounds.bottom == this.bottom && bounds.top == this.top) ?
+                    true : (((bounds.top > this.bottom) && (bounds.top < this.top)) ||
+                           ((this.top > bounds.bottom) && (this.top < bounds.top))); 
+        var inRight = (bounds.right == this.right && bounds.left == this.left) ?
+                    true : (((bounds.right > this.left) && (bounds.right < this.right)) ||
+                           ((this.right > bounds.left) && (this.right < bounds.right))); 
+        var inLeft = (bounds.right == this.right && bounds.left == this.left) ?
+                    true : (((bounds.left > this.left) && (bounds.left < this.right)) || 
+                           ((this.left > bounds.left) && (this.left < bounds.right))); 
+
+        return (this.containsBounds(bounds, true, inclusive) ||
+                bounds.containsBounds(this, true, inclusive) ||
+                ((inTop || inBottom ) && (inLeft || inRight )));
+    },
+    
+    /**
+     * APIMethod: containsBounds
+     * 
+     * bounds - {<OpenLayers.Bounds>}
+     * partial - {Boolean} If true, only part of passed-in bounds needs be
+     *     within this bounds.  If false, the entire passed-in bounds must be
+     *     within. Default is false
+     * inclusive - {Boolean} Whether or not to include the border. Default is
+     *     true.
+     *
+     * Returns:
+     * {Boolean} The passed-in bounds object is contained within this bounds. 
+     */
+    containsBounds:function(bounds, partial, inclusive) {
+
+        //set defaults
+        if (partial == null) {
+            partial = false;
+        }
+        if (inclusive == null) {
+            inclusive = true;
+        }
+
+        var inLeft;
+        var inTop;
+        var inRight;
+        var inBottom;
+        
+        if (inclusive) {
+            inLeft = (bounds.left >= this.left) && (bounds.left <= this.right);
+            inTop = (bounds.top >= this.bottom) && (bounds.top <= this.top);
+            inRight= (bounds.right >= this.left) && (bounds.right <= this.right);
+            inBottom = (bounds.bottom >= this.bottom) && (bounds.bottom <= this.top);
+        } else {
+            inLeft = (bounds.left > this.left) && (bounds.left < this.right);
+            inTop = (bounds.top > this.bottom) && (bounds.top < this.top);
+            inRight= (bounds.right > this.left) && (bounds.right < this.right);
+            inBottom = (bounds.bottom > this.bottom) && (bounds.bottom < this.top);
+        }
+        
+        return (partial) ? (inTop || inBottom ) && (inLeft || inRight ) 
+                         : (inTop && inLeft && inBottom && inRight);
+    },
+
+    /** 
+     * APIMethod: determineQuadrant
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {String} The quadrant ("br" "tr" "tl" "bl") of the bounds in which the
+     *     coordinate lies.
+     */
+    determineQuadrant: function(lonlat) {
+    
+        var quadrant = "";
+        var center = this.getCenterLonLat();
+        
+        quadrant += (lonlat.lat < center.lat) ? "b" : "t";
+        quadrant += (lonlat.lon < center.lon) ? "l" : "r";
+    
+        return quadrant; 
+    },
+    
+    /**
+     * APIMethod: transform
+     * Transform the Bounds object from source to dest. 
+     *
+     * Parameters: 
+     * source - {<OpenLayers.Projection>} Source projection. 
+     * dest   - {<OpenLayers.Projection>} Destination projection. 
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} Itself, for use in chaining operations.
+     */
+    transform: function(source, dest) {
+        var ll = OpenLayers.Projection.transform(
+            {'x': this.left, 'y': this.bottom}, source, dest);
+        var lr = OpenLayers.Projection.transform(
+            {'x': this.right, 'y': this.bottom}, source, dest);
+        var ul = OpenLayers.Projection.transform(
+            {'x': this.left, 'y': this.top}, source, dest);
+        var ur = OpenLayers.Projection.transform(
+            {'x': this.right, 'y': this.top}, source, dest);
+        this.left   = Math.min(ll.x, ul.x);
+        this.bottom = Math.min(ll.y, lr.y);
+        this.right  = Math.max(lr.x, ur.x);
+        this.top    = Math.max(ul.y, ur.y);
+        return this;
+    },
+
+    /**
+     * APIMethod: wrapDateLine
+     *  
+     * Parameters:
+     * maxExtent - {<OpenLayers.Bounds>}
+     * options - {Object} Some possible options are:
+     *                    leftTolerance - {float} Allow for a margin of error 
+     *                                            with the 'left' value of this 
+     *                                            bound.
+     *                                            Default is 0.
+     *                    rightTolerance - {float} Allow for a margin of error 
+     *                                             with the 'right' value of 
+     *                                             this bound.
+     *                                             Default is 0.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A copy of this bounds, but wrapped around the 
+     *                       "dateline" (as specified by the borders of 
+     *                       maxExtent). Note that this function only returns 
+     *                       a different bounds value if this bounds is 
+     *                       *entirely* outside of the maxExtent. If this 
+     *                       bounds straddles the dateline (is part in/part 
+     *                       out of maxExtent), the returned bounds will be 
+     *                       merely a copy of this one.
+     */
+    wrapDateLine: function(maxExtent, options) {    
+        options = options || {};
+        
+        var leftTolerance = options.leftTolerance || 0;
+        var rightTolerance = options.rightTolerance || 0;
+
+        var newBounds = this.clone();
+    
+        if (maxExtent) {
+
+           //shift right?
+           while ( newBounds.left < maxExtent.left && 
+                   (newBounds.right - rightTolerance) <= maxExtent.left ) { 
+                newBounds = newBounds.add(maxExtent.getWidth(), 0);
+           }
+
+           //shift left?
+           while ( (newBounds.left + leftTolerance) >= maxExtent.right && 
+                   newBounds.right > maxExtent.right ) { 
+                newBounds = newBounds.add(-maxExtent.getWidth(), 0);
+           }
+        }
+                
+        return newBounds;
+    },
+
+    CLASS_NAME: "OpenLayers.Bounds"
+});
+
+/** 
+ * APIFunction: fromString
+ * Alternative constructor that builds a new OpenLayers.Bounds from a 
+ *     parameter string
+ * 
+ * Parameters: 
+ * str - {String}Comma-separated bounds string. (ex. <i>"5,42,10,45"</i>)
+ * 
+ * Returns:
+ * {<OpenLayers.Bounds>} New bounds object built from the 
+ *                       passed-in String.
+ */
+OpenLayers.Bounds.fromString = function(str) {
+    var bounds = str.split(",");
+    return OpenLayers.Bounds.fromArray(bounds);
+};
+
+/** 
+ * APIFunction: fromArray
+ * Alternative constructor that builds a new OpenLayers.Bounds
+ *     from an array
+ * 
+ * Parameters:
+ * bbox - {Array(Float)} Array of bounds values (ex. <i>[5,42,10,45]</i>)
+ *
+ * Returns:
+ * {<OpenLayers.Bounds>} New bounds object built from the passed-in Array.
+ */
+OpenLayers.Bounds.fromArray = function(bbox) {
+    return new OpenLayers.Bounds(parseFloat(bbox[0]),
+                                 parseFloat(bbox[1]),
+                                 parseFloat(bbox[2]),
+                                 parseFloat(bbox[3]));
+};
+
+/** 
+ * APIFunction: fromSize
+ * Alternative constructor that builds a new OpenLayers.Bounds
+ *     from a size
+ * 
+ * Parameters:
+ * size - {<OpenLayers.Size>} 
+ *
+ * Returns:
+ * {<OpenLayers.Bounds>} New bounds object built from the passed-in size.
+ */
+OpenLayers.Bounds.fromSize = function(size) {
+    return new OpenLayers.Bounds(0,
+                                 size.h,
+                                 size.w,
+                                 0);
+};
+
+/**
+ * Function: oppositeQuadrant
+ * Get the opposite quadrant for a given quadrant string.
+ *
+ * Parameters:
+ * quadrant - {String} two character quadrant shortstring
+ *
+ * Returns:
+ * {String} The opposing quadrant ("br" "tr" "tl" "bl"). For Example, if 
+ *          you pass in "bl" it returns "tr", if you pass in "br" it 
+ *          returns "tl", etc.
+ */
+OpenLayers.Bounds.oppositeQuadrant = function(quadrant) {
+    var opp = "";
+    
+    opp += (quadrant.charAt(0) == 't') ? 'b' : 't';
+    opp += (quadrant.charAt(1) == 'l') ? 'r' : 'l';
+    
+    return opp;
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Element.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Namespace: OpenLayers.Element
+ */
+OpenLayers.Element = {
+
+    /**
+     * APIFunction: visible
+     * 
+     * Parameters: 
+     * element - {DOMElement}
+     * 
+     * Returns:
+     * {Boolean} Is the element visible?
+     */
+    visible: function(element) {
+        return OpenLayers.Util.getElement(element).style.display != 'none';
+    },
+
+    /**
+     * APIFunction: toggle
+     * Toggle the visibility of element(s) passed in
+     * 
+     * Parameters:
+     * element - {DOMElement} Actually user can pass any number of elements
+     */
+    toggle: function() {
+        for (var i = 0; i < arguments.length; i++) {
+            var element = OpenLayers.Util.getElement(arguments[i]);
+            var display = OpenLayers.Element.visible(element) ? 'hide' 
+                                                              : 'show';
+            OpenLayers.Element[display](element);
+        }
+    },
+
+
+    /**
+     * APIFunction: hide
+     * Hide element(s) passed in
+     * 
+     * Parameters:
+     * element - {DOMElement} Actually user can pass any number of elements
+     */
+    hide: function() {
+        for (var i = 0; i < arguments.length; i++) {
+            var element = OpenLayers.Util.getElement(arguments[i]);
+            element.style.display = 'none';
+        }
+    },
+
+    /**
+     * APIFunction: show
+     * Show element(s) passed in
+     * 
+     * Parameters:
+     * element - {DOMElement} Actually user can pass any number of elements
+     */
+    show: function() {
+        for (var i = 0; i < arguments.length; i++) {
+            var element = OpenLayers.Util.getElement(arguments[i]);
+            element.style.display = '';
+        }
+    },
+
+    /**
+     * APIFunction: remove
+     * Remove the specified element from the DOM.
+     * 
+     * Parameters:
+     * element - {DOMElement}
+     */
+    remove: function(element) {
+        element = OpenLayers.Util.getElement(element);
+        element.parentNode.removeChild(element);
+    },
+
+    /**
+     * APIFunction: getHeight
+     *  
+     * Parameters:
+     * element - {DOMElement}
+     * 
+     * Returns:
+     * {Integer} The offset height of the element passed in
+     */
+    getHeight: function(element) {
+        element = OpenLayers.Util.getElement(element);
+        return element.offsetHeight;
+    },
+
+    /**
+     * APIFunction: getDimensions
+     *  
+     * Parameters:
+     * element - {DOMElement}
+     * 
+     * Returns:
+     * {Object} Object with 'width' and 'height' properties which are the 
+     *          dimensions of the element passed in.
+     */
+    getDimensions: function(element) {
+        element = OpenLayers.Util.getElement(element);
+        if (OpenLayers.Element.getStyle(element, 'display') != 'none') {
+            return {width: element.offsetWidth, height: element.offsetHeight};
+        }
+    
+        // All *Width and *Height properties give 0 on elements with display none,
+        // so enable the element temporarily
+        var els = element.style;
+        var originalVisibility = els.visibility;
+        var originalPosition = els.position;
+        els.visibility = 'hidden';
+        els.position = 'absolute';
+        els.display = '';
+        var originalWidth = element.clientWidth;
+        var originalHeight = element.clientHeight;
+        els.display = 'none';
+        els.position = originalPosition;
+        els.visibility = originalVisibility;
+        return {width: originalWidth, height: originalHeight};
+    },
+
+    /**
+     * APIFunction: getStyle
+     * 
+     * Parameters:
+     * element - {DOMElement}
+     * style - {?}
+     * 
+     * Returns:
+     * {?}
+     */
+    getStyle: function(element, style) {
+        element = OpenLayers.Util.getElement(element);
+        var value = element.style[OpenLayers.String.camelize(style)];
+        if (!value) {
+            if (document.defaultView && 
+                document.defaultView.getComputedStyle) {
+                
+                var css = document.defaultView.getComputedStyle(element, null);
+                value = css ? css.getPropertyValue(style) : null;
+            } else if (element.currentStyle) {
+                value = element.currentStyle[OpenLayers.String.camelize(style)];
+            }
+        }
+    
+        var positions = ['left', 'top', 'right', 'bottom'];
+        if (window.opera &&
+            (OpenLayers.Util.indexOf(positions,style) != -1) &&
+            (OpenLayers.Element.getStyle(element, 'position') == 'static')) { 
+            value = 'auto';
+        }
+    
+        return value == 'auto' ? null : value;
+    }
+
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/LonLat.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Class: OpenLayers.LonLat
+ * This class represents a longitude and latitude pair
+ */
+OpenLayers.LonLat = OpenLayers.Class({
+
+    /** 
+     * APIProperty: lon
+     * {Float} The x-axis coodinate in map units
+     */
+    lon: 0.0,
+    
+    /** 
+     * APIProperty: lat
+     * {Float} The y-axis coordinate in map units
+     */
+    lat: 0.0,
+
+    /**
+     * Constructor: OpenLayers.LonLat
+     * Create a new map location.
+     *
+     * Parameters:
+     * lon - {Number} The x-axis coordinate in map units.  If your map is in
+     *     a geographic projection, this will be the Longitude.  Otherwise,
+     *     it will be the x coordinate of the map location in your map units.
+     * lat - {Number} The y-axis coordinate in map units.  If your map is in
+     *     a geographic projection, this will be the Latitude.  Otherwise,
+     *     it will be the y coordinate of the map location in your map units.
+     */
+    initialize: function(lon, lat) {
+        this.lon = parseFloat(lon);
+        this.lat = parseFloat(lat);
+    },
+    
+    /**
+     * Method: toString
+     * Return a readable string version of the lonlat
+     *
+     * Returns:
+     * {String} String representation of OpenLayers.LonLat object. 
+     *           (ex. <i>"lon=5,lat=42"</i>)
+     */
+    toString:function() {
+        return ("lon=" + this.lon + ",lat=" + this.lat);
+    },
+
+    /** 
+     * APIMethod: toShortString
+     * 
+     * Returns:
+     * {String} Shortened String representation of OpenLayers.LonLat object. 
+     *         (ex. <i>"5, 42"</i>)
+     */
+    toShortString:function() {
+        return (this.lon + ", " + this.lat);
+    },
+
+    /** 
+     * APIMethod: clone
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} New OpenLayers.LonLat object with the same lon 
+     *                       and lat values
+     */
+    clone:function() {
+        return new OpenLayers.LonLat(this.lon, this.lat);
+    },
+
+    /** 
+     * APIMethod: add
+     * 
+     * Parameters:
+     * lon - {Float}
+     * lat - {Float}
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} A new OpenLayers.LonLat object with the lon and 
+     *                       lat passed-in added to this's. 
+     */
+    add:function(lon, lat) {
+        if ( (lon == null) || (lat == null) ) {
+            var msg = OpenLayers.i18n("lonlatAddError");
+            OpenLayers.Console.error(msg);
+            return null;
+        }
+        return new OpenLayers.LonLat(this.lon + lon, this.lat + lat);
+    },
+
+    /** 
+     * APIMethod: equals
+     * 
+     * Parameters:
+     * ll - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {Boolean} Boolean value indicating whether the passed-in 
+     *           <OpenLayers.LonLat> object has the same lon and lat 
+     *           components as this.
+     *           Note: if ll passed in is null, returns false
+     */
+    equals:function(ll) {
+        var equals = false;
+        if (ll != null) {
+            equals = ((this.lon == ll.lon && this.lat == ll.lat) ||
+                      (isNaN(this.lon) && isNaN(this.lat) && isNaN(ll.lon) && isNaN(ll.lat)));
+        }
+        return equals;
+    },
+
+    /**
+     * APIMethod: transform
+     * Transform the LonLat object from source to dest. 
+     *
+     * Parameters: 
+     * source - {<OpenLayers.Projection>} Source projection. 
+     * dest   - {<OpenLayers.Projection>} Destination projection. 
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} Itself, for use in chaining operations.
+     */
+    transform: function(source, dest) {
+        var point = OpenLayers.Projection.transform(
+            {'x': this.lon, 'y': this.lat}, source, dest);
+        this.lon = point.x;
+        this.lat = point.y;
+        return this;
+    },
+    
+    /**
+     * APIMethod: wrapDateLine
+     * 
+     * Parameters:
+     * maxExtent - {<OpenLayers.Bounds>}
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} A copy of this lonlat, but wrapped around the 
+     *                       "dateline" (as specified by the borders of 
+     *                       maxExtent)
+     */
+    wrapDateLine: function(maxExtent) {    
+
+        var newLonLat = this.clone();
+    
+        if (maxExtent) {
+            //shift right?
+            while (newLonLat.lon < maxExtent.left) {
+                newLonLat.lon +=  maxExtent.getWidth();
+            }    
+           
+            //shift left?
+            while (newLonLat.lon > maxExtent.right) {
+                newLonLat.lon -= maxExtent.getWidth();
+            }    
+        }
+                
+        return newLonLat;
+    },
+
+    CLASS_NAME: "OpenLayers.LonLat"
+});
+
+/** 
+ * Function: fromString
+ * Alternative constructor that builds a new <OpenLayers.LonLat> from a 
+ *     parameter string
+ * 
+ * Parameters:
+ * str - {String} Comma-separated Lon,Lat coordinate string. 
+ *                 (ex. <i>"5,40"</i>)
+ * 
+ * Returns:
+ * {<OpenLayers.LonLat>} New <OpenLayers.LonLat> object built from the 
+ *                       passed-in String.
+ */
+OpenLayers.LonLat.fromString = function(str) {
+    var pair = str.split(",");
+    return new OpenLayers.LonLat(parseFloat(pair[0]), 
+                                 parseFloat(pair[1]));
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Pixel.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Class: OpenLayers.Pixel
+ * This class represents a screen coordinate, in x and y coordinates
+ */
+OpenLayers.Pixel = OpenLayers.Class({
+    
+    /**
+     * APIProperty: x
+     * {Number} The x coordinate
+     */
+    x: 0.0,
+
+    /**
+     * APIProperty: y
+     * {Number} The y coordinate
+     */
+    y: 0.0,
+    
+    /**
+     * Constructor: OpenLayers.Pixel
+     * Create a new OpenLayers.Pixel instance
+     *
+     * Parameters:
+     * x - {Number} The x coordinate
+     * y - {Number} The y coordinate
+     *
+     * Returns:
+     * An instance of OpenLayers.Pixel
+     */
+    initialize: function(x, y) {
+        this.x = parseFloat(x);
+        this.y = parseFloat(y);
+    },
+    
+    /**
+     * Method: toString
+     * Cast this object into a string
+     *
+     * Returns:
+     * {String} The string representation of Pixel. ex: "x=200.4,y=242.2"
+     */
+    toString:function() {
+        return ("x=" + this.x + ",y=" + this.y);
+    },
+
+    /**
+     * APIMethod: clone
+     * Return a clone of this pixel object
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} A clone pixel
+     */
+    clone:function() {
+        return new OpenLayers.Pixel(this.x, this.y); 
+    },
+    
+    /**
+     * APIMethod: equals
+     * Determine whether one pixel is equivalent to another
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {Boolean} The point passed in as parameter is equal to this. Note that
+     * if px passed in is null, returns false.
+     */
+    equals:function(px) {
+        var equals = false;
+        if (px != null) {
+            equals = ((this.x == px.x && this.y == px.y) ||
+                      (isNaN(this.x) && isNaN(this.y) && isNaN(px.x) && isNaN(px.y)));
+        }
+        return equals;
+    },
+
+    /**
+     * APIMethod: add
+     *
+     * Parameters:
+     * x - {Integer}
+     * y - {Integer}
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} A new Pixel with this pixel's x&y augmented by the 
+     * values passed in.
+     */
+    add:function(x, y) {
+        if ( (x == null) || (y == null) ) {
+            var msg = OpenLayers.i18n("pixelAddError");
+            OpenLayers.Console.error(msg);
+            return null;
+        }
+        return new OpenLayers.Pixel(this.x + x, this.y + y);
+    },
+
+    /**
+    * APIMethod: offset
+    * 
+    * Parameters
+    * px - {<OpenLayers.Pixel>}
+    * 
+    * Returns:
+    * {<OpenLayers.Pixel>} A new Pixel with this pixel's x&y augmented by the 
+    *                      x&y values of the pixel passed in.
+    */
+    offset:function(px) {
+        var newPx = this.clone();
+        if (px) {
+            newPx = this.add(px.x, px.y);
+        }
+        return newPx;
+    },
+
+    CLASS_NAME: "OpenLayers.Pixel"
+});
+/* ======================================================================
+    OpenLayers/Control.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Class: OpenLayers.Control
+ * Controls affect the display or behavior of the map. They allow everything
+ * from panning and zooming to displaying a scale indicator. Controls by 
+ * default are added to the map they are contained within however it is
+ * possible to add a control to an external div by passing the div in the
+ * options parameter.
+ * 
+ * Example:
+ * The following example shows how to add many of the common controls
+ * to a map.
+ * 
+ * > var map = new OpenLayers.Map('map', { controls: [] });
+ * >
+ * > map.addControl(new OpenLayers.Control.PanZoomBar());
+ * > map.addControl(new OpenLayers.Control.MouseToolbar());
+ * > map.addControl(new OpenLayers.Control.LayerSwitcher({'ascending':false}));
+ * > map.addControl(new OpenLayers.Control.Permalink());
+ * > map.addControl(new OpenLayers.Control.Permalink('permalink'));
+ * > map.addControl(new OpenLayers.Control.MousePosition());
+ * > map.addControl(new OpenLayers.Control.OverviewMap());
+ * > map.addControl(new OpenLayers.Control.KeyboardDefaults());
+ *
+ * The next code fragment is a quick example of how to intercept 
+ * shift-mouse click to display the extent of the bounding box
+ * dragged out by the user.  Usually controls are not created
+ * in exactly this manner.  See the source for a more complete 
+ * example:
+ *
+ * > var control = new OpenLayers.Control();
+ * > OpenLayers.Util.extend(control, {
+ * >     draw: function () {
+ * >         // this Handler.Box will intercept the shift-mousedown
+ * >         // before Control.MouseDefault gets to see it
+ * >         this.box = new OpenLayers.Handler.Box( control, 
+ * >             {"done": this.notice},
+ * >             {keyMask: OpenLayers.Handler.MOD_SHIFT});
+ * >         this.box.activate();
+ * >     },
+ * >
+ * >     notice: function (bounds) {
+ * >         alert(bounds);
+ * >     }
+ * > }); 
+ * > map.addControl(control);
+ * 
+ */
+OpenLayers.Control = OpenLayers.Class({
+
+    /** 
+     * Property: id 
+     * {String} 
+     */
+    id: null,
+    
+    /** 
+     * Property: map 
+     * {<OpenLayers.Map>} this gets set in the addControl() function in
+     * OpenLayers.Map 
+     */
+    map: null,
+
+    /** 
+     * Property: div 
+     * {DOMElement} 
+     */
+    div: null,
+
+    /** 
+     * Property: type 
+     * {OpenLayers.Control.TYPES} Controls can have a 'type'. The type
+     * determines the type of interactions which are possible with them when
+     * they are placed into a toolbar. 
+     */
+    type: null, 
+
+    /** 
+     * Property: allowSelection
+     * {Boolean} By deafault, controls do not allow selection, because
+     * it may interfere with map dragging. If this is true, OpenLayers
+     * will not prevent selection of the control.
+     * Default is false.
+     */
+    allowSelection: false,  
+
+    /** 
+     * Property: displayClass 
+     * {string}  This property is used for CSS related to the drawing of the
+     * Control. 
+     */
+    displayClass: "",
+    
+    /**
+    * Property: title  
+    * {string}  This property is used for showing a tooltip over the  
+    * Control.  
+    */ 
+    title: "",
+
+    /** 
+     * Property: active 
+     * {Boolean} The control is active.
+     */
+    active: null,
+
+    /** 
+     * Property: handler 
+     * {<OpenLayers.Handler>} null
+     */
+    handler: null,
+
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     */
+    eventListeners: null,
+
+    /** 
+     * Property: events
+     * {<OpenLayers.Events>} Events instance for triggering control specific
+     *     events.
+     */
+    events: null,
+
+    /**
+     * Constant: EVENT_TYPES
+     * {Array(String)} Supported application event types.  Register a listener
+     *     for a particular event with the following syntax:
+     * (code)
+     * control.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     *  - *object* {Object} A reference to control.events.object (a reference
+     *      to the control).
+     *  - *element* {DOMElement} A reference to control.events.element (which
+     *      will be null unless documented otherwise).
+     *
+     * Supported map event types:
+     *  - *activate* Triggered when activated.
+     *  - *deactivate* Triggered when deactivated.
+     */
+    EVENT_TYPES: ["activate", "deactivate"],
+
+    /**
+     * Constructor: OpenLayers.Control
+     * Create an OpenLayers Control.  The options passed as a parameter
+     * directly extend the control.  For example passing the following:
+     * 
+     * > var control = new OpenLayers.Control({div: myDiv});
+     *
+     * Overrides the default div attribute value of null.
+     * 
+     * Parameters:
+     * options - {Object} 
+     */
+    initialize: function (options) {
+        // We do this before the extend so that instances can override
+        // className in options.
+        this.displayClass = 
+            this.CLASS_NAME.replace("OpenLayers.", "ol").replace(/\./g, "");
+        
+        OpenLayers.Util.extend(this, options);
+        
+        this.events = new OpenLayers.Events(this, null, this.EVENT_TYPES);
+        if(this.eventListeners instanceof Object) {
+            this.events.on(this.eventListeners);
+        }
+        this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+    },
+
+    /**
+     * Method: destroy
+     * The destroy method is used to perform any clean up before the control
+     * is dereferenced.  Typically this is where event listeners are removed
+     * to prevent memory leaks.
+     */
+    destroy: function () {
+        if(this.events) {
+            if(this.eventListeners) {
+                this.events.un(this.eventListeners);
+            }
+            this.events.destroy();
+            this.events = null;
+        }
+        this.eventListeners = null;
+
+        // eliminate circular references
+        if (this.handler) {
+            this.handler.destroy();
+            this.handler = null;
+        }
+        if(this.handlers) {
+            for(var key in this.handlers) {
+                if(this.handlers.hasOwnProperty(key) &&
+                   typeof this.handlers[key].destroy == "function") {
+                    this.handlers[key].destroy();
+                }
+            }
+            this.handlers = null;
+        }
+        if (this.map) {
+            this.map.removeControl(this);
+            this.map = null;
+        }
+    },
+
+    /** 
+     * Method: setMap
+     * Set the map property for the control. This is done through an accessor
+     * so that subclasses can override this and take special action once 
+     * they have their map variable set. 
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} 
+     */
+    setMap: function(map) {
+        this.map = map;
+        if (this.handler) {
+            this.handler.setMap(map);
+        }
+    },
+  
+    /**
+     * Method: draw
+     * The draw method is called when the control is ready to be displayed
+     * on the page.  If a div has not been created one is created.  Controls
+     * with a visual component will almost always want to override this method 
+     * to customize the look of control. 
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} The top-left pixel position of the control
+     *      or null.
+     *
+     * Returns:
+     * {DOMElement} A reference to the DIV DOMElement containing the control
+     */
+    draw: function (px) {
+        if (this.div == null) {
+            this.div = OpenLayers.Util.createDiv(this.id);
+            this.div.className = this.displayClass;
+            if (!this.allowSelection) {
+                this.div.className += " olControlNoSelect";
+                this.div.setAttribute("unselectable", "on", 0);
+                this.div.onselectstart = function() { return(false); }; 
+            }    
+            if (this.title != "") {
+                this.div.title = this.title;
+            }
+        }
+        if (px != null) {
+            this.position = px.clone();
+        }
+        this.moveTo(this.position);
+        return this.div;
+    },
+
+    /**
+     * Method: moveTo
+     * Sets the left and top style attributes to the passed in pixel 
+     * coordinates.
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     */
+    moveTo: function (px) {
+        if ((px != null) && (this.div != null)) {
+            this.div.style.left = px.x + "px";
+            this.div.style.top = px.y + "px";
+        }
+    },
+
+    /**
+     * Method: activate
+     * Explicitly activates a control and it's associated
+     * handler if one has been set.  Controls can be
+     * deactivated by calling the deactivate() method.
+     * 
+     * Returns:
+     * {Boolean}  True if the control was successfully activated or
+     *            false if the control was already active.
+     */
+    activate: function () {
+        if (this.active) {
+            return false;
+        }
+        if (this.handler) {
+            this.handler.activate();
+        }
+        this.active = true;
+        this.events.triggerEvent("activate");
+        return true;
+    },
+    
+    /**
+     * Method: deactivate
+     * Deactivates a control and it's associated handler if any.  The exact
+     * effect of this depends on the control itself.
+     * 
+     * Returns:
+     * {Boolean} True if the control was effectively deactivated or false
+     *           if the control was already inactive.
+     */
+    deactivate: function () {
+        if (this.active) {
+            if (this.handler) {
+                this.handler.deactivate();
+            }
+            this.active = false;
+            this.events.triggerEvent("deactivate");
+            return true;
+        }
+        return false;
+    },
+
+    CLASS_NAME: "OpenLayers.Control"
+});
+
+OpenLayers.Control.TYPE_BUTTON = 1;
+OpenLayers.Control.TYPE_TOGGLE = 2;
+OpenLayers.Control.TYPE_TOOL   = 3;
+/* ======================================================================
+    OpenLayers/Icon.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * Class: OpenLayers.Icon
+ * 
+ * The icon represents a graphical icon on the screen.  Typically used in
+ * conjunction with a <OpenLayers.Marker> to represent markers on a screen.
+ *
+ * An icon has a url, size and position.  It also contains an offset which 
+ * allows the center point to be represented correctly.  This can be
+ * provided either as a fixed offset or a function provided to calculate
+ * the desired offset. 
+ * 
+ */
+OpenLayers.Icon = OpenLayers.Class({
+    
+    /** 
+     * Property: url 
+     * {String}  image url
+     */
+    url: null,
+    
+    /** 
+     * Property: size 
+     * {<OpenLayers.Size>} 
+     */
+    size: null,
+
+    /** 
+     * Property: offset 
+     * {<OpenLayers.Pixel>} distance in pixels to offset the image when being rendered
+     */
+    offset: null,    
+    
+    /** 
+     * Property: calculateOffset 
+     * {<OpenLayers.Pixel>} Function to calculate the offset (based on the size) 
+     */
+    calculateOffset: null,    
+    
+    /** 
+     * Property: imageDiv 
+     * {DOMElement} 
+     */
+    imageDiv: null,
+
+    /** 
+     * Property: px 
+     * {<OpenLayers.Pixel>} 
+     */
+    px: null,
+    
+    /** 
+     * Constructor: OpenLayers.Icon
+     * Creates an icon, which is an image tag in a div.  
+     *
+     * url - {String} 
+     * size - {<OpenLayers.Size>} 
+     * offset - {<OpenLayers.Pixel>}
+     * calculateOffset - {Function} 
+     */
+    initialize: function(url, size, offset, calculateOffset) {
+        this.url = url;
+        this.size = (size) ? size : new OpenLayers.Size(20,20);
+        this.offset = offset ? offset : new OpenLayers.Pixel(-(this.size.w/2), -(this.size.h/2));
+        this.calculateOffset = calculateOffset;
+
+        var id = OpenLayers.Util.createUniqueID("OL_Icon_");
+        this.imageDiv = OpenLayers.Util.createAlphaImageDiv(id);
+    },
+    
+    /** 
+     * Method: destroy
+     * Nullify references and remove event listeners to prevent circular 
+     * references and memory leaks
+     */
+    destroy: function() {
+        OpenLayers.Event.stopObservingElement(this.imageDiv.firstChild); 
+        this.imageDiv.innerHTML = "";
+        this.imageDiv = null;
+    },
+
+    /** 
+     * Method: clone
+     * 
+     * Returns:
+     * {<OpenLayers.Icon>} A fresh copy of the icon.
+     */
+    clone: function() {
+        return new OpenLayers.Icon(this.url, 
+                                   this.size, 
+                                   this.offset, 
+                                   this.calculateOffset);
+    },
+    
+    /**
+     * Method: setSize
+     * 
+     * Parameters:
+     * size - {<OpenLayers.Size>} 
+     */
+    setSize: function(size) {
+        if (size != null) {
+            this.size = size;
+        }
+        this.draw();
+    },
+    
+    /**
+     * Method: setUrl
+     * 
+     * Parameters:
+     * url - {String} 
+     */
+    setUrl: function(url) {
+        if (url != null) {
+            this.url = url;
+        }
+        this.draw();
+    },
+
+    /** 
+     * Method: draw
+     * Move the div to the given pixel.
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} 
+     * 
+     * Returns:
+     * {DOMElement} A new DOM Image of this icon set at the location passed-in
+     */
+    draw: function(px) {
+        OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv, 
+                                            null, 
+                                            null, 
+                                            this.size, 
+                                            this.url, 
+                                            "absolute");
+        this.moveTo(px);
+        return this.imageDiv;
+    }, 
+
+    
+    /** 
+     * Method: setOpacity
+     * Change the icon's opacity
+     *
+     * Parameters:
+     * opacity - {float} 
+     */
+    setOpacity: function(opacity) {
+        OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv, null, null, null, 
+                                            null, null, null, null, opacity);
+
+    },
+    
+    /**
+     * Method: moveTo
+     * move icon to passed in px.
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} 
+     */
+    moveTo: function (px) {
+        //if no px passed in, use stored location
+        if (px != null) {
+            this.px = px;
+        }
+
+        if (this.imageDiv != null) {
+            if (this.px == null) {
+                this.display(false);
+            } else {
+                if (this.calculateOffset) {
+                    this.offset = this.calculateOffset(this.size);  
+                }
+                var offsetPx = this.px.offset(this.offset);
+                OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv, null, offsetPx);
+            }
+        }
+    },
+    
+    /** 
+     * Method: display
+     * Hide or show the icon
+     *
+     * Parameters:
+     * display - {Boolean} 
+     */
+    display: function(display) {
+        this.imageDiv.style.display = (display) ? "" : "none"; 
+    },
+
+    CLASS_NAME: "OpenLayers.Icon"
+});
+/* ======================================================================
+    OpenLayers/Lang.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * Namespace: OpenLayers.Lang
+ * Internationalization namespace.  Contains dictionaries in various languages
+ *     and methods to set and get the current language.
+ */
+OpenLayers.Lang = {
+    
+    /** 
+     * Property: code
+     * {String}  Current language code to use in OpenLayers.  Use the
+     *     <setCode> method to set this value and the <getCode> method to
+     *     retrieve it.
+     */
+    code: null,
+
+    /** 
+     * APIProperty: defaultCode
+     * {String} Default language to use when a specific language can't be
+     *     found.  Default is "en".
+     */
+    defaultCode: "en",
+        
+    /**
+     * APIFunction: getCode
+     * Get the current language code.
+     *
+     * Returns:
+     * The current language code.
+     */
+    getCode: function() {
+        if(!OpenLayers.Lang.code) {
+            OpenLayers.Lang.setCode();
+        }
+        return OpenLayers.Lang.code;
+    },
+    
+    /**
+     * APIFunction: setCode
+     * Set the language code for string translation.  This code is used by
+     *     the <OpenLayers.Lang.translate> method.
+     *
+     * Parameters-
+     * code - {String} These codes follow the IETF recommendations at
+     *     http://www.ietf.org/rfc/rfc3066.txt.  If no value is set, the
+     *     browser's language setting will be tested.  If no <OpenLayers.Lang>
+     *     dictionary exists for the code, the <OpenLayers.String.defaultLang>
+     *     will be used.
+     */
+    setCode: function(code) {
+        var lang;
+        if(!code) {
+            code = (OpenLayers.Util.getBrowserName() == "msie") ?
+                navigator.userLanguage : navigator.language;
+        }
+        var parts = code.split('-');
+        parts[0] = parts[0].toLowerCase();
+        if(typeof OpenLayers.Lang[parts[0]] == "object") {
+            lang = parts[0];
+        }
+
+        // check for regional extensions
+        if(parts[1]) {
+            var testLang = parts[0] + '-' + parts[1].toUpperCase();
+            if(typeof OpenLayers.Lang[testLang] == "object") {
+                lang = testLang;
+            }
+        }
+        if(!lang) {
+            OpenLayers.Console.warn(
+                'Failed to find OpenLayers.Lang.' + parts.join("-") +
+                ' dictionary, falling back to default language'
+            );
+            lang = OpenLayers.Lang.defaultCode;
+        }
+        
+        OpenLayers.Lang.code = lang;
+    },
+
+    /**
+     * APIMethod: translate
+     * Looks up a key from a dictionary based on the current language string.
+     *     The value of <getCode> will be used to determine the appropriate
+     *     dictionary.  Dictionaries are stored in <OpenLayers.Lang>.
+     *
+     * Parameters:
+     * key - {String} The key for an i18n string value in the dictionary.
+     * context - {Object} Optional context to be used with
+     *     <OpenLayers.String.format>.
+     * 
+     * Returns:
+     * {String} A internationalized string.
+     */
+    translate: function(key, context) {
+        var dictionary = OpenLayers.Lang[OpenLayers.Lang.getCode()];
+        var message = dictionary[key];
+        if(!message) {
+            // Message not found, fall back to message key
+            message = key;
+        }
+        if(context) {
+            message = OpenLayers.String.format(message, context);
+        }
+        return message;
+    }
+    
+};
+
+
+/**
+ * APIMethod: OpenLayers.i18n
+ * Alias for <OpenLayers.Lang.translate>.  Looks up a key from a dictionary
+ *     based on the current language string. The value of
+ *     <OpenLayers.Lang.getCode> will be used to determine the appropriate
+ *     dictionary.  Dictionaries are stored in <OpenLayers.Lang>.
+ *
+ * Parameters:
+ * key - {String} The key for an i18n string value in the dictionary.
+ * context - {Object} Optional context to be used with
+ *     <OpenLayers.String.format>.
+ * 
+ * Returns:
+ * {String} A internationalized string.
+ */
+OpenLayers.i18n = OpenLayers.Lang.translate;
+/* ======================================================================
+    OpenLayers/Tween.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * Namespace: OpenLayers.Tween
+ */
+OpenLayers.Tween = OpenLayers.Class({
+    
+    /**
+     * Constant: INTERVAL
+     * {int} Interval in milliseconds between 2 steps
+     */
+    INTERVAL: 10,
+    
+    /**
+     * APIProperty: easing
+     * {<OpenLayers.Easing>(Function)} Easing equation used for the animation
+     *     Defaultly set to OpenLayers.Easing.Expo.easeOut
+     */
+    easing: null,
+    
+    /**
+     * APIProperty: begin
+     * {Object} Values to start the animation with
+     */
+    begin: null,
+    
+    /**
+     * APIProperty: finish
+     * {Object} Values to finish the animation with
+     */
+    finish: null,
+    
+    /**
+     * APIProperty: duration
+     * {int} duration of the tween (number of steps)
+     */
+    duration: null,
+    
+    /**
+     * APIProperty: callbacks
+     * {Object} An object with start, eachStep and done properties whose values
+     *     are functions to be call during the animation. They are passed the
+     *     current computed value as argument.
+     */
+    callbacks: null,
+    
+    /**
+     * Property: time
+     * {int} Step counter
+     */
+    time: null,
+    
+    /**
+     * Property: interval
+     * {int} Interval id returned by window.setInterval
+     */
+    interval: null,
+    
+    /**
+     * Property: playing
+     * {Boolean} Tells if the easing is currently playing
+     */
+    playing: false,
+    
+    /** 
+     * Constructor: OpenLayers.Tween
+     * Creates a Tween.
+     *
+     * Parameters:
+     * easing - {<OpenLayers.Easing>(Function)} easing function method to use
+     */ 
+    initialize: function(easing) {
+        this.easing = (easing) ? easing : OpenLayers.Easing.Expo.easeOut;
+    },
+    
+    /**
+     * APIMethod: start
+     * Plays the Tween, and calls the callback method on each step
+     * 
+     * Parameters:
+     * begin - {Object} values to start the animation with
+     * finish - {Object} values to finish the animation with
+     * duration - {int} duration of the tween (number of steps)
+     * options - {Object} hash of options (for example callbacks (start, eachStep, done))
+     */
+    start: function(begin, finish, duration, options) {
+        this.playing = true;
+        this.begin = begin;
+        this.finish = finish;
+        this.duration = duration;
+        this.callbacks = options.callbacks;
+        this.time = 0;
+        if (this.interval) {
+            window.clearInterval(this.interval);
+            this.interval = null;
+        }
+        if (this.callbacks && this.callbacks.start) {
+            this.callbacks.start.call(this, this.begin);
+        }
+        this.interval = window.setInterval(
+            OpenLayers.Function.bind(this.play, this), this.INTERVAL);
+    },
+    
+    /**
+     * APIMethod: stop
+     * Stops the Tween, and calls the done callback
+     *     Doesn't do anything if animation is already finished
+     */
+    stop: function() {
+        if (!this.playing) {
+            return;
+        }
+        
+        if (this.callbacks && this.callbacks.done) {
+            this.callbacks.done.call(this, this.finish);
+        }
+        window.clearInterval(this.interval);
+        this.interval = null;
+        this.playing = false;
+    },
+    
+    /**
+     * Method: play
+     * Calls the appropriate easing method
+     */
+    play: function() {
+        var value = {};
+        for (var i in this.begin) {
+            var b = this.begin[i];
+            var f = this.finish[i];
+            if (b == null || f == null || isNaN(b) || isNaN(f)) {
+                OpenLayers.Console.error('invalid value for Tween');
+            }
+            
+            var c = f - b;
+            value[i] = this.easing.apply(this, [this.time, b, c, this.duration]);
+        }
+        this.time++;
+        
+        if (this.callbacks && this.callbacks.eachStep) {
+            this.callbacks.eachStep.call(this, value);
+        }
+        
+        if (this.time > this.duration) {
+            if (this.callbacks && this.callbacks.done) {
+                this.callbacks.done.call(this, this.finish);
+                this.playing = false;
+            }
+            window.clearInterval(this.interval);
+            this.interval = null;
+        }
+    },
+    
+    /**
+     * Create empty functions for all easing methods.
+     */
+    CLASS_NAME: "OpenLayers.Tween"
+});
+
+/**
+ * Namespace: OpenLayers.Easing
+ * 
+ * Credits:
+ *      Easing Equations by Robert Penner, <http://www.robertpenner.com/easing/>
+ */
+OpenLayers.Easing = {
+    /**
+     * Create empty functions for all easing methods.
+     */
+    CLASS_NAME: "OpenLayers.Easing"
+};
+
+/**
+ * Namespace: OpenLayers.Easing.Linear
+ */
+OpenLayers.Easing.Linear = {
+    
+    /**
+     * Function: easeIn
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeIn: function(t, b, c, d) {
+        return c*t/d + b;
+    },
+    
+    /**
+     * Function: easeOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeOut: function(t, b, c, d) {
+        return c*t/d + b;
+    },
+    
+    /**
+     * Function: easeInOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeInOut: function(t, b, c, d) {
+        return c*t/d + b;
+    },
+
+    CLASS_NAME: "OpenLayers.Easing.Linear"
+};
+
+/**
+ * Namespace: OpenLayers.Easing.Expo
+ */
+OpenLayers.Easing.Expo = {
+    
+    /**
+     * Function: easeIn
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeIn: function(t, b, c, d) {
+        return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
+    },
+    
+    /**
+     * Function: easeOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeOut: function(t, b, c, d) {
+        return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
+    },
+    
+    /**
+     * Function: easeInOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeInOut: function(t, b, c, d) {
+        if (t==0) return b;
+        if (t==d) return b+c;
+        if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
+        return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
+    },
+
+    CLASS_NAME: "OpenLayers.Easing.Expo"
+};
+
+/**
+ * Namespace: OpenLayers.Easing.Quad
+ */
+OpenLayers.Easing.Quad = {
+    
+    /**
+     * Function: easeIn
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeIn: function(t, b, c, d) {
+        return c*(t/=d)*t + b;
+    },
+    
+    /**
+     * Function: easeOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeOut: function(t, b, c, d) {
+        return -c *(t/=d)*(t-2) + b;
+    },
+    
+    /**
+     * Function: easeInOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     */
+    easeInOut: function(t, b, c, d) {
+        if ((t/=d/2) < 1) return c/2*t*t + b;
+        return -c/2 * ((--t)*(t-2) - 1) + b;
+    },
+
+    CLASS_NAME: "OpenLayers.Easing.Quad"
+};
+/* ======================================================================
+    OpenLayers/Control/ArgParser.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Control.js
+ */
+
+/**
+ * Class: OpenLayers.Control.ArgParser
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.ArgParser = OpenLayers.Class(OpenLayers.Control, {
+
+    /**
+     * Parameter: center
+     * {<OpenLayers.LonLat>}
+     */
+    center: null,
+    
+    /**
+     * Parameter: zoom
+     * {int}
+     */
+    zoom: null,
+
+    /**
+     * Parameter: layers 
+     * {Array(<OpenLayers.Layer>)}
+     */
+    layers: null,
+    
+    /** 
+     * APIProperty: displayProjection
+     * {<OpenLayers.Projection>} Requires proj4js support. 
+     *     Projection used when reading the coordinates from the URL. This will
+     *     reproject the map coordinates from the URL into the map's
+     *     projection.
+     *
+     *     If you are using this functionality, be aware that any permalink
+     *     which is added to the map will determine the coordinate type which
+     *     is read from the URL, which means you should not add permalinks with
+     *     different displayProjections to the same map. 
+     */
+    displayProjection: null, 
+
+    /**
+     * Constructor: OpenLayers.Control.ArgParser
+     *
+     * Parameters:
+     * options - {Object}
+     */
+    initialize: function(options) {
+        OpenLayers.Control.prototype.initialize.apply(this, arguments);
+    },
+
+    /**
+     * Method: setMap
+     * Set the map property for the control. 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>} 
+     */
+    setMap: function(map) {
+        OpenLayers.Control.prototype.setMap.apply(this, arguments);
+
+        //make sure we dont already have an arg parser attached
+        for(var i=0; i< this.map.controls.length; i++) {
+            var control = this.map.controls[i];
+            if ( (control != this) &&
+                 (control.CLASS_NAME == "OpenLayers.Control.ArgParser") ) {
+                
+                // If a second argparser is added to the map, then we 
+                // override the displayProjection to be the one added to the
+                // map. 
+                if (control.displayProjection != this.displayProjection) {
+                    this.displayProjection = control.displayProjection;
+                }    
+                
+                break;
+            }
+        }
+        if (i == this.map.controls.length) {
+
+            var args = OpenLayers.Util.getParameters();
+            // Be careful to set layer first, to not trigger unnecessary layer loads
+            if (args.layers) {
+                this.layers = args.layers;
+    
+                // when we add a new layer, set its visibility 
+                this.map.events.register('addlayer', this, 
+                                         this.configureLayers);
+                this.configureLayers();
+            }
+            if (args.lat && args.lon) {
+                this.center = new OpenLayers.LonLat(parseFloat(args.lon),
+                                                    parseFloat(args.lat));
+                if (args.zoom) {
+                    this.zoom = parseInt(args.zoom);
+                }
+    
+                // when we add a new baselayer to see when we can set the center
+                this.map.events.register('changebaselayer', this, 
+                                         this.setCenter);
+                this.setCenter();
+            }
+        }
+    },
+   
+    /** 
+     * Method: setCenter
+     * As soon as a baseLayer has been loaded, we center and zoom
+     *   ...and remove the handler.
+     */
+    setCenter: function() {
+        
+        if (this.map.baseLayer) {
+            //dont need to listen for this one anymore
+            this.map.events.unregister('changebaselayer', this, 
+                                       this.setCenter);
+            
+            if (this.displayProjection) {
+                this.center.transform(this.displayProjection, 
+                                      this.map.getProjectionObject()); 
+            }      
+
+            this.map.setCenter(this.center, this.zoom);
+        }
+    },
+
+    /** 
+     * Method: configureLayers
+     * As soon as all the layers are loaded, cycle through them and 
+     *   hide or show them. 
+     */
+    configureLayers: function() {
+
+        if (this.layers.length == this.map.layers.length) { 
+            this.map.events.unregister('addlayer', this, this.configureLayers);
+
+            for(var i=0; i < this.layers.length; i++) {
+                
+                var layer = this.map.layers[i];
+                var c = this.layers.charAt(i);
+                
+                if (c == "B") {
+                    this.map.setBaseLayer(layer);
+                } else if ( (c == "T") || (c == "F") ) {
+                    layer.setVisibility(c == "T");
+                }
+            }
+        }
+    },     
+
+    CLASS_NAME: "OpenLayers.Control.ArgParser"
+});
+/* ======================================================================
+    OpenLayers/Control/MousePosition.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Control.js
+ */
+
+/**
+ * Class: OpenLayers.Control.MousePosition
+ */
+OpenLayers.Control.MousePosition = OpenLayers.Class(OpenLayers.Control, {
+    
+    /** 
+     * Property: element
+     * {DOMElement} 
+     */
+    element: null,
+    
+    /** 
+     * APIProperty: prefix
+     * {String}
+     */
+    prefix: '',
+    
+    /** 
+     * APIProperty: separator
+     * {String}
+     */
+    separator: ', ',
+    
+    /** 
+     * APIProperty: suffix
+     * {String}
+     */
+    suffix: '',
+    
+    /** 
+     * APIProperty: numDigits
+     * {Integer}
+     */
+    numdigits: 5,
+    
+    /** 
+     * APIProperty: granularity
+     * {Integer} 
+     */
+    granularity: 10,
+    
+    /** 
+     * Property: lastXy
+     * {<OpenLayers.LonLat>}
+     */
+    lastXy: null,
+
+    /**
+     * APIProperty: displayProjection
+     * {<OpenLayers.Projection>} A projection that the 
+     * mousecontrol will display.
+     */
+    displayProjection: null, 
+    
+    /**
+     * Constructor: OpenLayers.Control.MousePosition
+     * 
+     * Parameters:
+     * options - {DOMElement} Options for control.
+     */
+    initialize: function(options) {
+        OpenLayers.Control.prototype.initialize.apply(this, arguments);
+    },
+
+    /**
+     * Method: destroy
+     */
+     destroy: function() {
+         if (this.map) {
+             this.map.events.unregister('mousemove', this, this.redraw);
+         }
+         OpenLayers.Control.prototype.destroy.apply(this, arguments);
+     },
+
+    /**
+     * Method: draw
+     * {DOMElement}
+     */    
+    draw: function() {
+        OpenLayers.Control.prototype.draw.apply(this, arguments);
+
+        if (!this.element) {
+            this.div.left = "";
+            this.div.top = "";
+            this.element = this.div;
+        }
+        
+        this.redraw();
+        return this.div;
+    },
+   
+    /**
+     * Method: redraw  
+     */
+    redraw: function(evt) {
+
+        var lonLat;
+
+        if (evt == null) {
+            lonLat = new OpenLayers.LonLat(0, 0);
+        } else {
+            if (this.lastXy == null ||
+                Math.abs(evt.xy.x - this.lastXy.x) > this.granularity ||
+                Math.abs(evt.xy.y - this.lastXy.y) > this.granularity)
+            {
+                this.lastXy = evt.xy;
+                return;
+            }
+
+            lonLat = this.map.getLonLatFromPixel(evt.xy);
+            if (!lonLat) { 
+                // map has not yet been properly initialized
+                return;
+            }    
+            if (this.displayProjection) {
+                lonLat.transform(this.map.getProjectionObject(), 
+                                 this.displayProjection );
+            }      
+            this.lastXy = evt.xy;
+            
+        }
+        
+        var newHtml = this.formatOutput(lonLat);
+
+        if (newHtml != this.element.innerHTML) {
+            this.element.innerHTML = newHtml;
+        }
+    },
+
+    /**
+     * Method: formatOutput
+     * Override to provide custom display output
+     *
+     * Parameters:
+     * lonLat - {<OpenLayers.LonLat>} Location to display
+     */
+    formatOutput: function(lonLat) {
+        var digits = parseInt(this.numdigits);
+        var newHtml =
+            this.prefix +
+            lonLat.lon.toFixed(digits) +
+            this.separator + 
+            lonLat.lat.toFixed(digits) +
+            this.suffix;
+        return newHtml;
+     },
+
+    /** 
+     * Method: setMap
+     */
+    setMap: function() {
+        OpenLayers.Control.prototype.setMap.apply(this, arguments);
+        this.map.events.register( 'mousemove', this, this.redraw);
+    },     
+
+    CLASS_NAME: "OpenLayers.Control.MousePosition"
+});
+/* ======================================================================
+    OpenLayers/Control/PanZoom.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Control.js
+ */
+
+/**
+ * Class: OpenLayers.Control.PanZoom
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.PanZoom = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * APIProperty: slideFactor
+     * {Integer} Number of pixels by which we'll pan the map in any direction 
+     *     on clicking the arrow buttons. 
+     */
+    slideFactor: 50,
+
+    /** 
+     * Property: buttons
+     * {Array(DOMElement)} Array of Button Divs 
+     */
+    buttons: null,
+
+    /** 
+     * Property: position
+     * {<OpenLayers.Pixel>} 
+     */
+    position: null,
+
+    /**
+     * Constructor: OpenLayers.Control.PanZoom
+     * 
+     * Parameters:
+     * options - {Object}
+     */
+    initialize: function(options) {
+        this.position = new OpenLayers.Pixel(OpenLayers.Control.PanZoom.X,
+                                             OpenLayers.Control.PanZoom.Y);
+        OpenLayers.Control.prototype.initialize.apply(this, arguments);
+    },
+
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function() {
+        OpenLayers.Control.prototype.destroy.apply(this, arguments);
+        while(this.buttons.length) {
+            var btn = this.buttons.shift();
+            btn.map = null;
+            OpenLayers.Event.stopObservingElement(btn);
+        }
+        this.buttons = null;
+        this.position = null;
+    },
+
+    /**
+     * Method: draw
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} 
+     * 
+     * Returns:
+     * {DOMElement} A reference to the container div for the PanZoom control.
+     */
+    draw: function(px) {
+        // initialize our internal div
+        OpenLayers.Control.prototype.draw.apply(this, arguments);
+        px = this.position;
+
+        // place the controls
+        this.buttons = [];
+
+        var sz = new OpenLayers.Size(18,18);
+        var centered = new OpenLayers.Pixel(px.x+sz.w/2, px.y);
+
+        this._addButton("panup", "north-mini.png", centered, sz);
+        px.y = centered.y+sz.h;
+        this._addButton("panleft", "west-mini.png", px, sz);
+        this._addButton("panright", "east-mini.png", px.add(sz.w, 0), sz);
+        this._addButton("pandown", "south-mini.png", 
+                        centered.add(0, sz.h*2), sz);
+        this._addButton("zoomin", "zoom-plus-mini.png", 
+                        centered.add(0, sz.h*3+5), sz);
+        this._addButton("zoomworld", "zoom-world-mini.png", 
+                        centered.add(0, sz.h*4+5), sz);
+        this._addButton("zoomout", "zoom-minus-mini.png", 
+                        centered.add(0, sz.h*5+5), sz);
+        return this.div;
+    },
+    
+    /**
+     * Method: _addButton
+     * 
+     * Parameters:
+     * id - {String} 
+     * img - {String} 
+     * xy - {<OpenLayers.Pixel>} 
+     * sz - {<OpenLayers.Size>} 
+     * 
+     * Returns:
+     * {DOMElement} A Div (an alphaImageDiv, to be precise) that contains the
+     *     image of the button, and has all the proper event handlers set.
+     */
+    _addButton:function(id, img, xy, sz) {
+        var imgLocation = OpenLayers.Util.getImagesLocation() + img;
+        var btn = OpenLayers.Util.createAlphaImageDiv(
+                                    "OpenLayers_Control_PanZoom_" + id, 
+                                    xy, sz, imgLocation, "absolute");
+
+        //we want to add the outer div
+        this.div.appendChild(btn);
+
+        OpenLayers.Event.observe(btn, "mousedown", 
+            OpenLayers.Function.bindAsEventListener(this.buttonDown, btn));
+        OpenLayers.Event.observe(btn, "dblclick", 
+            OpenLayers.Function.bindAsEventListener(this.doubleClick, btn));
+        OpenLayers.Event.observe(btn, "click", 
+            OpenLayers.Function.bindAsEventListener(this.doubleClick, btn));
+        btn.action = id;
+        btn.map = this.map;
+        btn.slideFactor = this.slideFactor;
+
+        //we want to remember/reference the outer div
+        this.buttons.push(btn);
+        return btn;
+    },
+    
+    /**
+     * Method: doubleClick
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean}
+     */
+    doubleClick: function (evt) {
+        OpenLayers.Event.stop(evt);
+        return false;
+    },
+    
+    /**
+     * Method: buttonDown
+     *
+     * Parameters:
+     * evt - {Event} 
+     */
+    buttonDown: function (evt) {
+        if (!OpenLayers.Event.isLeftClick(evt)) {
+            return;
+        }
+
+        switch (this.action) {
+            case "panup": 
+                this.map.pan(0, -this.slideFactor);
+                break;
+            case "pandown": 
+                this.map.pan(0, this.slideFactor);
+                break;
+            case "panleft": 
+                this.map.pan(-this.slideFactor, 0);
+                break;
+            case "panright": 
+                this.map.pan(this.slideFactor, 0);
+                break;
+            case "zoomin": 
+                this.map.zoomIn(); 
+                break;
+            case "zoomout": 
+                this.map.zoomOut(); 
+                break;
+            case "zoomworld": 
+                this.map.zoomToMaxExtent(); 
+                break;
+        }
+
+        OpenLayers.Event.stop(evt);
+    },
+
+    CLASS_NAME: "OpenLayers.Control.PanZoom"
+});
+
+/**
+ * Constant: X
+ * {Integer}
+ */
+OpenLayers.Control.PanZoom.X = 4;
+
+/**
+ * Constant: Y
+ * {Integer}
+ */
+OpenLayers.Control.PanZoom.Y = 4;
+/* ======================================================================
+    OpenLayers/Control/ScaleLine.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2007 MetaCarta, Inc., published under a modified BSD license.
+ * See http://svn.openlayers.org/trunk/openlayers/repository-license.txt 
+ * for the full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ */
+
+/**
+ * Class: OpenLayers.Control.ScaleLine
+ * Display a small line indicator representing the current map scale on the map.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ *  
+ * Is a very close copy of:
+ *  - <OpenLayers.Control.Scale>
+ */
+OpenLayers.Control.ScaleLine = OpenLayers.Class(OpenLayers.Control, {
+
+    /**
+     * Property: maxWidth
+     * {Integer} Maximum width of the scale line in pixels.  Default is 100.
+     */
+    maxWidth: 100,
+
+    /**
+     * Property: topOutUnits
+     * {String} Units for zoomed out on top bar.  Default is km.
+     */
+    topOutUnits: "km",
+    
+    /**
+     * Property: topInUnits
+     * {String} Units for zoomed in on top bar.  Default is m.
+     */
+    topInUnits: "m",
+
+    /**
+     * Property: bottomOutUnits
+     * {String} Units for zoomed out on bottom bar.  Default is mi.
+     */
+    bottomOutUnits: "mi",
+
+    /**
+     * Property: bottomInUnits
+     * {String} Units for zoomed in on bottom bar.  Default is ft.
+     */
+    bottomInUnits: "ft",
+    
+    /**
+     * Property: eTop
+     * {DOMElement}
+     */
+    eTop: null,
+
+    /**
+     * Property: eBottom
+     * {DOMElement}
+     */
+    eBottom:null,
+
+    /**
+     * Constructor: OpenLayers.ScaleLine
+     * Create a new scale line control.
+     * 
+     * Parameters:
+     * options - {Object} An optional object whose properties will be used
+     *     to extend the control.
+     */
+    initialize: function(options) {
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);     
+    },
+
+    /**
+     * Method: draw
+     * 
+     * Returns:
+     * {DOMElement}
+     */
+    draw: function() {
+        OpenLayers.Control.prototype.draw.apply(this, arguments);
+        if (!this.eTop) {
+            this.div.style.display = "block";
+            this.div.style.position = "absolute";
+            
+            // stick in the top bar
+            this.eTop = document.createElement("div");
+            this.eTop.className = this.displayClass + "Top";
+            var theLen = this.topInUnits.length;
+            this.div.appendChild(this.eTop);
+            if((this.topOutUnits == "") || (this.topInUnits == "")) {
+                this.eTop.style.visibility = "hidden";
+            } else {
+                this.eTop.style.visibility = "visible";
+            }
+
+            // and the bottom bar
+            this.eBottom = document.createElement("div");
+            this.eBottom.className = this.displayClass + "Bottom";
+            this.div.appendChild(this.eBottom);
+            if((this.bottomOutUnits == "") || (this.bottomInUnits == "")) {
+                this.eBottom.style.visibility = "hidden";
+            } else {
+                this.eBottom.style.visibility = "visible";
+            }
+        }
+        this.map.events.register('moveend', this, this.update);
+        this.update();
+        return this.div;
+    },
+
+    /** 
+     * Method: getBarLen
+     * Given a number, round it down to the nearest 1,2,5 times a power of 10.
+     * That seems a fairly useful set of number groups to use.
+     * 
+     * Parameters:
+     * maxLen - {float}  the number we're rounding down from
+     * 
+     * Returns:
+     * {Float} the rounded number (less than or equal to maxLen)
+     */
+    getBarLen: function(maxLen) {
+        // nearest power of 10 lower than maxLen
+        var digits = parseInt(Math.log(maxLen) / Math.log(10));
+        var pow10 = Math.pow(10, digits);
+        
+        // ok, find first character
+        var firstChar = parseInt(maxLen / pow10);
+
+        // right, put it into the correct bracket
+        var barLen;
+        if(firstChar > 5) {
+            barLen = 5;
+        } else if(firstChar > 2) {
+            barLen = 2;
+        } else {
+            barLen = 1;
+        }
+
+        // scale it up the correct power of 10
+        return barLen * pow10;
+    },
+
+    /**
+     * Method: update
+     * Update the size of the bars, and the labels they contain.
+     */
+    update: function() {
+        var res = this.map.getResolution();
+        if (!res) {
+            return;
+        }
+
+        var curMapUnits = this.map.units;
+        var inches = OpenLayers.INCHES_PER_UNIT;
+
+        // convert maxWidth to map units
+        var maxSizeData = this.maxWidth * res * inches[curMapUnits];  
+
+        // decide whether to use large or small scale units     
+        var topUnits;
+        var bottomUnits;
+        if(maxSizeData > 100000) {
+            topUnits = this.topOutUnits;
+            bottomUnits = this.bottomOutUnits;
+        } else {
+            topUnits = this.topInUnits;
+            bottomUnits = this.bottomInUnits;
+        }
+
+        // and to map units units
+        var topMax = maxSizeData / inches[topUnits];
+        var bottomMax = maxSizeData / inches[bottomUnits];
+
+        // now trim this down to useful block length
+        var topRounded = this.getBarLen(topMax);
+        var bottomRounded = this.getBarLen(bottomMax);
+
+        // and back to display units
+        topMax = topRounded / inches[curMapUnits] * inches[topUnits];
+        bottomMax = bottomRounded / inches[curMapUnits] * inches[bottomUnits];
+
+        // and to pixel units
+        var topPx = topMax / res;
+        var bottomPx = bottomMax / res;
+        
+        // now set the pixel widths
+        this.eTop.style.width = Math.round(topPx) + "px";
+        this.eBottom.style.width = Math.round(bottomPx) + "px"; 
+        
+        // and the values inside them
+        this.eTop.innerHTML = topRounded + " " + topUnits;
+        this.eBottom.innerHTML = bottomRounded + " " + bottomUnits ;
+    }, 
+
+    CLASS_NAME: "OpenLayers.Control.ScaleLine"
+});
+
+/* ======================================================================
+    OpenLayers/Events.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Namespace: OpenLayers.Event
+ * Utility functions for event handling.
+ */
+OpenLayers.Event = {
+
+    /** 
+     * Property: observers 
+     * {Object} A hashtable cache of the event observers. Keyed by
+     * element._eventCacheID 
+     */
+    observers: false,
+    
+    /** 
+     * Constant: KEY_BACKSPACE 
+     * {int} 
+     */
+    KEY_BACKSPACE: 8,
+
+    /** 
+     * Constant: KEY_TAB 
+     * {int} 
+     */
+    KEY_TAB: 9,
+
+    /** 
+     * Constant: KEY_RETURN 
+     * {int} 
+     */
+    KEY_RETURN: 13,
+
+    /** 
+     * Constant: KEY_ESC 
+     * {int} 
+     */
+    KEY_ESC: 27,
+
+    /** 
+     * Constant: KEY_LEFT 
+     * {int} 
+     */
+    KEY_LEFT: 37,
+
+    /** 
+     * Constant: KEY_UP 
+     * {int} 
+     */
+    KEY_UP: 38,
+
+    /** 
+     * Constant: KEY_RIGHT 
+     * {int} 
+     */
+    KEY_RIGHT: 39,
+
+    /** 
+     * Constant: KEY_DOWN 
+     * {int} 
+     */
+    KEY_DOWN: 40,
+
+    /** 
+     * Constant: KEY_DELETE 
+     * {int} 
+     */
+    KEY_DELETE: 46,
+
+
+    /**
+     * Method: element
+     * Cross browser event element detection.
+     * 
+     * Parameters:
+     * event - {Event} 
+     * 
+     * Returns:
+     * {DOMElement} The element that caused the event 
+     */
+    element: function(event) {
+        return event.target || event.srcElement;
+    },
+
+    /**
+     * Method: isLeftClick
+     * Determine whether event was caused by a left click. 
+     *
+     * Parameters:
+     * event - {Event} 
+     * 
+     * Returns:
+     * {Boolean}
+     */
+    isLeftClick: function(event) {
+        return (((event.which) && (event.which == 1)) ||
+                ((event.button) && (event.button == 1)));
+    },
+
+    /**
+     * Method: stop
+     * Stops an event from propagating. 
+     *
+     * Parameters: 
+     * event - {Event} 
+     * allowDefault - {Boolean} If true, we stop the event chain but 
+     *                               still allow the default browser 
+     *                               behaviour (text selection, radio-button 
+     *                               clicking, etc)
+     *                               Default false
+     */
+    stop: function(event, allowDefault) {
+        
+        if (!allowDefault) { 
+            if (event.preventDefault) {
+                event.preventDefault();
+            } else {
+                event.returnValue = false;
+            }
+        }
+                
+        if (event.stopPropagation) {
+            event.stopPropagation();
+        } else {
+            event.cancelBubble = true;
+        }
+    },
+
+    /** 
+     * Method: findElement
+     * 
+     * Parameters:
+     * event - {Event} 
+     * tagName - {String} 
+     * 
+     * Returns:
+     * {DOMElement} The first node with the given tagName, starting from the
+     * node the event was triggered on and traversing the DOM upwards
+     */
+    findElement: function(event, tagName) {
+        var element = OpenLayers.Event.element(event);
+        while (element.parentNode && (!element.tagName ||
+              (element.tagName.toUpperCase() != tagName.toUpperCase()))){
+            element = element.parentNode;
+        }
+        return element;
+    },
+
+    /** 
+     * Method: observe
+     * 
+     * Parameters:
+     * elementParam - {DOMElement || String} 
+     * name - {String} 
+     * observer - {function} 
+     * useCapture - {Boolean} 
+     */
+    observe: function(elementParam, name, observer, useCapture) {
+        var element = OpenLayers.Util.getElement(elementParam);
+        useCapture = useCapture || false;
+
+        if (name == 'keypress' &&
+           (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
+           || element.attachEvent)) {
+            name = 'keydown';
+        }
+
+        //if observers cache has not yet been created, create it
+        if (!this.observers) {
+            this.observers = {};
+        }
+
+        //if not already assigned, make a new unique cache ID
+        if (!element._eventCacheID) {
+            var idPrefix = "eventCacheID_";
+            if (element.id) {
+                idPrefix = element.id + "_" + idPrefix;
+            }
+            element._eventCacheID = OpenLayers.Util.createUniqueID(idPrefix);
+        }
+
+        var cacheID = element._eventCacheID;
+
+        //if there is not yet a hash entry for this element, add one
+        if (!this.observers[cacheID]) {
+            this.observers[cacheID] = [];
+        }
+
+        //add a new observer to this element's list
+        this.observers[cacheID].push({
+            'element': element,
+            'name': name,
+            'observer': observer,
+            'useCapture': useCapture
+        });
+
+        //add the actual browser event listener
+        if (element.addEventListener) {
+            element.addEventListener(name, observer, useCapture);
+        } else if (element.attachEvent) {
+            element.attachEvent('on' + name, observer);
+        }
+    },
+
+    /** 
+     * Method: stopObservingElement
+     * Given the id of an element to stop observing, cycle through the 
+     *   element's cached observers, calling stopObserving on each one, 
+     *   skipping those entries which can no longer be removed.
+     * 
+     * parameters:
+     * elementParam - {DOMElement || String} 
+     */
+    stopObservingElement: function(elementParam) {
+        var element = OpenLayers.Util.getElement(elementParam);
+        var cacheID = element._eventCacheID;
+
+        this._removeElementObservers(OpenLayers.Event.observers[cacheID]);
+    },
+
+    /**
+     * Method: _removeElementObservers
+     *
+     * Parameters:
+     * elementObservers - {Array(Object)} Array of (element, name, 
+     *                                         observer, usecapture) objects, 
+     *                                         taken directly from hashtable
+     */
+    _removeElementObservers: function(elementObservers) {
+        if (elementObservers) {
+            for(var i = elementObservers.length-1; i >= 0; i--) {
+                var entry = elementObservers[i];
+                var args = new Array(entry.element,
+                                     entry.name,
+                                     entry.observer,
+                                     entry.useCapture);
+                var removed = OpenLayers.Event.stopObserving.apply(this, args);
+            }
+        }
+    },
+
+    /**
+     * Method: stopObserving
+     * 
+     * Parameters:
+     * elementParam - {DOMElement || String} 
+     * name - {String} 
+     * observer - {function} 
+     * useCapture - {Boolean} 
+     *  
+     * Returns:
+     * {Boolean} Whether or not the event observer was removed
+     */
+    stopObserving: function(elementParam, name, observer, useCapture) {
+        useCapture = useCapture || false;
+    
+        var element = OpenLayers.Util.getElement(elementParam);
+        var cacheID = element._eventCacheID;
+
+        if (name == 'keypress') {
+            if ( navigator.appVersion.match(/Konqueror|Safari|KHTML/) || 
+                 element.detachEvent) {
+              name = 'keydown';
+            }
+        }
+
+        // find element's entry in this.observers cache and remove it
+        var foundEntry = false;
+        var elementObservers = OpenLayers.Event.observers[cacheID];
+        if (elementObservers) {
+    
+            // find the specific event type in the element's list
+            var i=0;
+            while(!foundEntry && i < elementObservers.length) {
+                var cacheEntry = elementObservers[i];
+    
+                if ((cacheEntry.name == name) &&
+                    (cacheEntry.observer == observer) &&
+                    (cacheEntry.useCapture == useCapture)) {
+    
+                    elementObservers.splice(i, 1);
+                    if (elementObservers.length == 0) {
+                        delete OpenLayers.Event.observers[cacheID];
+                    }
+                    foundEntry = true;
+                    break; 
+                }
+                i++;           
+            }
+        }
+    
+        //actually remove the event listener from browser
+        if (foundEntry) {
+            if (element.removeEventListener) {
+                element.removeEventListener(name, observer, useCapture);
+            } else if (element && element.detachEvent) {
+                element.detachEvent('on' + name, observer);
+            }
+        }
+        return foundEntry;
+    },
+    
+    /** 
+     * Method: unloadCache
+     * Cycle through all the element entries in the events cache and call
+     *   stopObservingElement on each. 
+     */
+    unloadCache: function() {
+        // check for OpenLayers.Event before checking for observers, because
+        // OpenLayers.Event may be undefined in IE if no map instance was
+        // created
+        if (OpenLayers.Event && OpenLayers.Event.observers) {
+            for (var cacheID in OpenLayers.Event.observers) {
+                var elementObservers = OpenLayers.Event.observers[cacheID];
+                OpenLayers.Event._removeElementObservers.apply(this, 
+                                                           [elementObservers]);
+            }
+            OpenLayers.Event.observers = false;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Event"
+};
+
+/* prevent memory leaks in IE */
+OpenLayers.Event.observe(window, 'unload', OpenLayers.Event.unloadCache, false);
+
+// FIXME: Remove this in 3.0. In 3.0, Event.stop will no longer be provided
+// by OpenLayers.
+if (window.Event) {
+    OpenLayers.Util.applyDefaults(window.Event, OpenLayers.Event);
+} else {
+    var Event = OpenLayers.Event;
+}
+
+/**
+ * Class: OpenLayers.Events
+ */
+OpenLayers.Events = OpenLayers.Class({
+
+    /** 
+     * Constant: BROWSER_EVENTS
+     * {Array(String)} supported events 
+     */
+    BROWSER_EVENTS: [
+        "mouseover", "mouseout",
+        "mousedown", "mouseup", "mousemove", 
+        "click", "dblclick",
+        "resize", "focus", "blur"
+    ],
+
+    /** 
+     * Property: listeners 
+     * {Object} Hashtable of Array(Function): events listener functions  
+     */
+    listeners: null,
+
+    /** 
+     * Property: object 
+     * {Object}  the code object issuing application events 
+     */
+    object: null,
+
+    /** 
+     * Property: element 
+     * {DOMElement}  the DOM element receiving browser events 
+     */
+    element: null,
+
+    /** 
+     * Property: eventTypes 
+     * {Array(String)}  list of support application events 
+     */
+    eventTypes: null,
+
+    /** 
+     * Property: eventHandler 
+     * {Function}  bound event handler attached to elements 
+     */
+    eventHandler: null,
+
+    /** 
+     * APIProperty: fallThrough 
+     * {Boolean} 
+     */
+    fallThrough: null,
+
+    /**
+     * Constructor: OpenLayers.Events
+     * Construct an OpenLayers.Events object.
+     *
+     * Parameters:
+     * object - {Object} The js object to which this Events object  is being
+     * added element - {DOMElement} A dom element to respond to browser events
+     * eventTypes - {Array(String)} Array of custom application events 
+     * fallThrough - {Boolean} Allow events to fall through after these have
+     *                         been handled?
+     */
+    initialize: function (object, element, eventTypes, fallThrough) {
+        this.object     = object;
+        this.element    = element;
+        this.eventTypes = eventTypes;
+        this.fallThrough = fallThrough;
+        this.listeners  = {};
+
+        // keep a bound copy of handleBrowserEvent() so that we can
+        // pass the same function to both Event.observe() and .stopObserving()
+        this.eventHandler = OpenLayers.Function.bindAsEventListener(
+            this.handleBrowserEvent, this
+        );
+
+        // if eventTypes is specified, create a listeners list for each 
+        // custom application event.
+        if (this.eventTypes != null) {
+            for (var i = 0; i < this.eventTypes.length; i++) {
+                this.addEventType(this.eventTypes[i]);
+            }
+        }
+        
+        // if a dom element is specified, add a listeners list 
+        // for browser events on the element and register them
+        if (this.element != null) {
+            this.attachToElement(element);
+        }
+    },
+
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function () {
+        if (this.element) {
+            OpenLayers.Event.stopObservingElement(this.element);
+        }
+        this.element = null;
+
+        this.listeners = null;
+        this.object = null;
+        this.eventTypes = null;
+        this.fallThrough = null;
+        this.eventHandler = null;
+    },
+
+    /**
+     * APIMethod: addEventType
+     * Add a new event type to this events object.
+     * If the event type has already been added, do nothing.
+     * 
+     * Parameters:
+     * eventName - {String}
+     */
+    addEventType: function(eventName) {
+        if (!this.listeners[eventName]) {
+            this.listeners[eventName] = [];
+        }
+    },
+
+    /**
+     * Method: attachToElement
+     *
+     * Parameters:
+     * element - {HTMLDOMElement} a DOM element to attach browser events to
+     */
+    attachToElement: function (element) {
+        for (var i = 0; i < this.BROWSER_EVENTS.length; i++) {
+            var eventType = this.BROWSER_EVENTS[i];
+
+            // every browser event has a corresponding application event 
+            // (whether it's listened for or not).
+            this.addEventType(eventType);
+            
+            // use Prototype to register the event cross-browser
+            OpenLayers.Event.observe(element, eventType, this.eventHandler);
+        }
+        // disable dragstart in IE so that mousedown/move/up works normally
+        OpenLayers.Event.observe(element, "dragstart", OpenLayers.Event.stop);
+    },
+    
+    /**
+     * Method: on
+     * Convenience method for registering listeners with a common scope.
+     *
+     * Example use:
+     * (code)
+     * events.on({
+     *     "loadstart": loadStartListener,
+     *     "loadend": loadEndListener,
+     *     scope: object
+     * });
+     * (end)
+     */
+    on: function(object) {
+        for(var type in object) {
+            if(type != "scope") {
+                this.register(type, object.scope, object[type]);
+            }
+        }
+    },
+
+    /**
+     * APIMethod: register
+     * Register an event on the events object.
+     *
+     * When the event is triggered, the 'func' function will be called, in the
+     * context of 'obj'. Imagine we were to register an event, specifying an 
+     * OpenLayers.Bounds Object as 'obj'. When the event is triggered, the 
+     * context in the callback function will be our Bounds object. This means
+     * that within our callback function, we can access the properties and 
+     * methods of the Bounds object through the "this" variable. So our 
+     * callback could execute something like: 
+     * :    leftStr = "Left: " + this.left;
+     *   
+     *                   or
+     *  
+     * :    centerStr = "Center: " + this.getCenterLonLat();
+     *
+     * Parameters:
+     * type - {String} Name of the event to register
+     * obj - {Object} The object to bind the context to for the callback#.
+     *                     If no object is specified, default is the Events's 
+     *                     'object' property.
+     * func - {Function} The callback function. If no callback is 
+     *                        specified, this function does nothing.
+     * 
+     * 
+     */
+    register: function (type, obj, func) {
+
+        if (func != null && 
+            ((this.eventTypes && OpenLayers.Util.indexOf(this.eventTypes, type) != -1) ||
+            OpenLayers.Util.indexOf(this.BROWSER_EVENTS, type) != -1)) {
+            if (obj == null)  {
+                obj = this.object;
+            }
+            var listeners = this.listeners[type];
+            if (listeners != null) {
+                listeners.push( {obj: obj, func: func} );
+            }
+        }
+    },
+
+    /**
+     * APIMethod: registerPriority
+     * Same as register() but adds the new listener to the *front* of the
+     *     events queue instead of to the end.
+     *    
+     *     TODO: get rid of this in 3.0 - Decide whether listeners should be 
+     *     called in the order they were registered or in reverse order.
+     *
+     *
+     * Parameters:
+     * type - {String} Name of the event to register
+     * obj - {Object} The object to bind the context to for the callback#.
+     *                If no object is specified, default is the Events's 
+     *                'object' property.
+     * func - {Function} The callback function. If no callback is 
+     *                   specified, this function does nothing.
+     */
+    registerPriority: function (type, obj, func) {
+
+        if (func != null) {
+            if (obj == null)  {
+                obj = this.object;
+            }
+            var listeners = this.listeners[type];
+            if (listeners != null) {
+                listeners.unshift( {obj: obj, func: func} );
+            }
+        }
+    },
+    
+    /**
+     * Method: un
+     * Convenience method for unregistering listeners with a common scope.
+     *
+     * Example use:
+     * (code)
+     * events.un({
+     *     "loadstart": loadStartListener,
+     *     "loadend": loadEndListener,
+     *     scope: object
+     * });
+     * (end)
+     */
+    un: function(object) {
+        for(var type in object) {
+            if(type != "scope") {
+                this.unregister(type, object.scope, object[type]);
+            }
+        }
+    },
+
+    /**
+     * APIMethod: unregister
+     *
+     * Parameters:
+     * type - {String} 
+     * obj - {Object} If none specified, defaults to this.object
+     * func - {Function} 
+     */
+    unregister: function (type, obj, func) {
+        if (obj == null)  {
+            obj = this.object;
+        }
+        var listeners = this.listeners[type];
+        if (listeners != null) {
+            for (var i = 0; i < listeners.length; i++) {
+                if (listeners[i].obj == obj && listeners[i].func == func) {
+                    listeners.splice(i, 1);
+                    break;
+                }
+            }
+        }
+    },
+
+    /** 
+     * Method: remove
+     * Remove all listeners for a given event type. If type is not registered,
+     *     does nothing.
+     *
+     * Parameters:
+     * type - {String} 
+     */
+    remove: function(type) {
+        if (this.listeners[type] != null) {
+            this.listeners[type] = [];
+        }
+    },
+
+    /**
+     * APIMethod: triggerEvent
+     * Trigger a specified registered event.  
+     * 
+     * Parameters:
+     * type - {String} 
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} The last listener return.  If a listener returns false, the
+     *     chain of listeners will stop getting called.
+     */
+    triggerEvent: function (type, evt) {
+
+        // prep evt object with object & div references
+        if (evt == null) {
+            evt = {};
+        }
+        evt.object = this.object;
+        evt.element = this.element;
+        if(!evt.type) {
+            evt.type = type;
+        }
+    
+        // execute all callbacks registered for specified type
+        // get a clone of the listeners array to
+        // allow for splicing during callbacks
+        var listeners = (this.listeners[type]) ?
+                            this.listeners[type].slice() : null;
+        if ((listeners != null) && (listeners.length > 0)) {
+            var continueChain;
+            for (var i = 0; i < listeners.length; i++) {
+                var callback = listeners[i];
+                // bind the context to callback.obj
+                continueChain = callback.func.apply(callback.obj, [evt]);
+    
+                if ((continueChain != undefined) && (continueChain == false)) {
+                    // if callback returns false, execute no more callbacks.
+                    break;
+                }
+            }
+            // don't fall through to other DOM elements
+            if (!this.fallThrough) {           
+                OpenLayers.Event.stop(evt, true);
+            }
+        }
+        return continueChain;
+    },
+
+    /**
+     * Method: handleBrowserEvent
+     * Basically just a wrapper to the triggerEvent() function, but takes 
+     *     care to set a property 'xy' on the event with the current mouse 
+     *     position.
+     *
+     * Parameters:
+     * evt - {Event} 
+     */
+    handleBrowserEvent: function (evt) {
+        evt.xy = this.getMousePosition(evt); 
+        this.triggerEvent(evt.type, evt);
+    },
+
+    /**
+     * Method: getMousePosition
+     * 
+     * Parameters:
+     * evt - {Event} 
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} The current xy coordinate of the mouse, adjusted
+     *                      for offsets
+     */
+    getMousePosition: function (evt) {
+        if (!this.element.offsets) {
+            this.element.offsets = OpenLayers.Util.pagePosition(this.element);
+            this.element.offsets[0] += (document.documentElement.scrollLeft
+                         || document.body.scrollLeft);
+            this.element.offsets[1] += (document.documentElement.scrollTop
+                         || document.body.scrollTop);
+        }
+        return new OpenLayers.Pixel(
+            (evt.clientX + (document.documentElement.scrollLeft
+                         || document.body.scrollLeft)) - this.element.offsets[0]
+                         - (document.documentElement.clientLeft || 0), 
+            (evt.clientY + (document.documentElement.scrollTop
+                         || document.body.scrollTop)) - this.element.offsets[1]
+                         - (document.documentElement.clientTop || 0)
+        ); 
+    },
+
+    CLASS_NAME: "OpenLayers.Events"
+});
+/* ======================================================================
+    OpenLayers/Lang/en.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Lang.js
+ */
+
+/**
+ * Namespace: OpenLayers.Lang["en"]
+ * Dictionary for English.  Keys for entries are used in calls to
+ *     <OpenLayers.Lang.translate>.  Entry bodies are normal strings or
+ *     strings formatted for use with <OpenLayers.String.format> calls.
+ */
+OpenLayers.Lang.en = {
+
+    'unhandledRequest': "Unhandled request return ${statusText}",
+
+    'permalink': "Permalink",
+
+    'overlays': "Overlays",
+
+    'baseLayer': "Base Layer",
+
+    'sameProjection':
+        "The overview map only works when it is in the same projection as the main map",
+
+    'readNotImplemented': "Read not implemented.",
+
+    'writeNotImplemented': "Write not implemented.",
+
+    'noFID': "Can't update a feature for which there is no FID.",
+
+    'errorLoadingGML': "Error in loading GML file ${url}",
+
+    'browserNotSupported':
+        "Your browser does not support vector rendering. Currently supported renderers are:\n${renderers}",
+
+    'componentShouldBe': "addFeatures : component should be an ${geomType}",
+
+    // console message
+    'getFeatureError':
+        "getFeatureFromEvent called on layer with no renderer. This usually means you " +
+        "destroyed a layer, but not some handler which is associated with it.",
+
+    // console message
+    'minZoomLevelError':
+        "The minZoomLevel property is only intended for use " +
+        "with the FixedZoomLevels-descendent layers. That this " +
+        "wfs layer checks for minZoomLevel is a relic of the" +
+        "past. We cannot, however, remove it without possibly " +
+        "breaking OL based applications that may depend on it." +
+        " Therefore we are deprecating it -- the minZoomLevel " +
+        "check below will be removed at 3.0. Please instead " +
+        "use min/max resolution setting as described here: " +
+        "http://trac.openlayers.org/wiki/SettingZoomLevels",
+
+    'commitSuccess': "WFS Transaction: SUCCESS ${response}",
+
+    'commitFailed': "WFS Transaction: FAILED ${response}",
+
+    'googleWarning':
+        "The Google Layer was unable to load correctly.<br><br>" +
+        "To get rid of this message, select a new BaseLayer " +
+        "in the layer switcher in the upper-right corner.<br><br>" +
+        "Most likely, this is because the Google Maps library " +
+        "script was either not included, or does not contain the " +
+        "correct API key for your site.<br><br>" +
+        "Developers: For help getting this working correctly, " +
+        "<a href='http://trac.openlayers.org/wiki/Google' " +
+        "target='_blank'>click here</a>",
+
+    'getLayerWarning':
+        "The ${layerType} Layer was unable to load correctly.<br><br>" +
+        "To get rid of this message, select a new BaseLayer " +
+        "in the layer switcher in the upper-right corner.<br><br>" +
+        "Most likely, this is because the ${layerLib} library " +
+        "script was either not correctly included.<br><br>" +
+        "Developers: For help getting this working correctly, " +
+        "<a href='http://trac.openlayers.org/wiki/${layerLib}' " +
+        "target='_blank'>click here</a>",
+
+    'scale': "Scale = 1 : ${scaleDenom}",
+
+    // console message
+    'layerAlreadyAdded':
+        "You tried to add the layer: ${layerName} to the map, but it has already been added",
+
+    // console message
+    'reprojectDeprecated':
+        "You are using the 'reproject' option " +
+        "on the ${layerName} layer. This option is deprecated: " +
+        "its use was designed to support displaying data over commercial " + 
+        "basemaps, but that functionality should now be achieved by using " +
+        "Spherical Mercator support. More information is available from " +
+        "http://trac.openlayers.org/wiki/SphericalMercator.",
+
+    // console message
+    'methodDeprecated':
+        "This method has been deprecated and will be removed in 3.0. " +
+        "Please use ${newMethod} instead.",
+
+    // console message
+    'boundsAddError': "You must pass both x and y values to the add function.",
+
+    // console message
+    'lonlatAddError': "You must pass both lon and lat values to the add function.",
+
+    // console message
+    'pixelAddError': "You must pass both x and y values to the add function.",
+
+    // console message
+    'unsupportedGeometryType': "Unsupported geometry type: ${geomType}",
+
+    // console message
+    'pagePositionFailed':
+        "OpenLayers.Util.pagePosition failed: element with id ${elemId} may be misplaced.",
+                    
+    'end': ''
+};
+/* ======================================================================
+    OpenLayers/Projection.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under a modified BSD license.
+ * See http://svn.openlayers.org/trunk/openlayers/repository-license.txt 
+ * for the full text of the license. */
+
+/**
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Class: OpenLayers.Projection
+ * Class for coordinate transforms between coordinate systems.
+ *     Depends on the proj4js library. If proj4js is not available, 
+ *     then this is just an empty stub.
+ */
+OpenLayers.Projection = OpenLayers.Class({
+
+    /**
+     * Property: proj
+     * {Object} Proj4js.Proj instance.
+     */
+    proj: null,
+    
+    /**
+     * Property: projCode
+     * {String}
+     */
+    projCode: null,
+
+    /**
+     * Constructor: OpenLayers.Projection
+     * This class offers several methods for interacting with a wrapped 
+     *     pro4js projection object. 
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *     format
+     *
+     * Returns:
+     * {<OpenLayers.Projection>} A projection object.
+     */
+    initialize: function(projCode, options) {
+        OpenLayers.Util.extend(this, options);
+        this.projCode = projCode;
+        if (window.Proj4js) {
+            this.proj = new Proj4js.Proj(projCode);
+        }
+    },
+    
+    /**
+     * APIMethod: getCode
+     * Get the string SRS code.
+     *
+     * Returns:
+     * {String} The SRS code.
+     */
+    getCode: function() {
+        return this.proj ? this.proj.srsCode : this.projCode;
+    },
+   
+    /**
+     * APIMethod: getUnits
+     * Get the units string for the projection -- returns null if 
+     *     proj4js is not available.
+     *
+     * Returns:
+     * {String} The units abbreviation.
+     */
+    getUnits: function() {
+        return this.proj ? this.proj.units : null;
+    },
+
+    /**
+     * Method: toString
+     * Convert projection to string (getCode wrapper).
+     *
+     * Returns:
+     * {String} The projection code.
+     */
+    toString: function() {
+        return this.getCode();
+    },
+
+    /**
+     * Method: equals
+     * Test equality of two projection instances.  Determines equality based
+     *     soley on the projection code.
+     *
+     * Returns:
+     * {Boolean} The two projections are equivalent.
+     */
+    equals: function(projection) {
+        if (projection && projection.getCode) {
+            return this.getCode() == projection.getCode();
+        } else {
+            return false;
+        }    
+    },
+
+    /* Method: destroy
+     * Destroy projection object.
+     */
+    destroy: function() {
+        delete this.proj;
+        delete this.projCode;
+    },
+    
+    CLASS_NAME: "OpenLayers.Projection" 
+});     
+
+/**
+ * Property: transforms
+ * Transforms is an object, with from properties, each of which may
+ * have a to property. This allows you to define projections without 
+ * requiring support for proj4js to be included.
+ *
+ * This object has keys which correspond to a 'source' projection object.  The
+ * keys should be strings, corresponding to the projection.getCode() value.
+ * Each source projection object should have a set of destination projection
+ * keys included in the object. 
+ * 
+ * Each value in the destination object should be a transformation function,
+ * where the function is expected to be passed an object with a .x and a .y
+ * property.  The function should return the object, with the .x and .y
+ * transformed according to the transformation function.
+ *
+ * Note - Properties on this object should not be set directly.  To add a
+ *     transform method to this object, use the <addTransform> method.  For an
+ *     example of usage, see the OpenLayers.Layer.SphericalMercator file.
+ */
+OpenLayers.Projection.transforms = {};
+
+/**
+ * APIMethod: addTransform
+ * Set a custom transform method between two projections.  Use this method in
+ *     cases where the proj4js lib is not available or where custom projections
+ *     need to be handled.
+ *
+ * Parameters:
+ * from - {String} The code for the source projection
+ * to - {String} the code for the destination projection
+ * method - {Function} A function that takes a point as an argument and
+ *     transforms that point from the source to the destination projection
+ *     in place.  The original point should be modified.
+ */
+OpenLayers.Projection.addTransform = function(from, to, method) {
+    if(!OpenLayers.Projection.transforms[from]) {
+        OpenLayers.Projection.transforms[from] = {};
+    }
+    OpenLayers.Projection.transforms[from][to] = method;
+};
+
+/**
+ * APIMethod: transform
+ * Transform a point coordinate from one projection to another.  Note that
+ *     the input point is transformed in place.
+ * 
+ * Parameters:
+ * point - {{OpenLayers.Geometry.Point> | Object} An object with x and y
+ *     properties representing coordinates in those dimensions.
+ * sourceProj - {OpenLayers.Projection} Source map coordinate system
+ * destProj - {OpenLayers.Projection} Destination map coordinate system
+ *
+ * Returns:
+ * point - {object} A transformed coordinate.  The original point is modified.
+ */
+OpenLayers.Projection.transform = function(point, source, dest) {
+    if (source.proj && dest.proj) {
+        point = Proj4js.transform(source.proj, dest.proj, point);
+    } else if (source && dest && 
+               OpenLayers.Projection.transforms[source.getCode()] && 
+               OpenLayers.Projection.transforms[source.getCode()][dest.getCode()]) {
+        OpenLayers.Projection.transforms[source.getCode()][dest.getCode()](point); 
+    }
+    return point;
+};
+/* ======================================================================
+    OpenLayers/Tile.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/*
+ * @requires OpenLayers/Util.js
+ */
+
+/*
+ * Class: OpenLayers.Tile 
+ * This is a class designed to designate a single tile, however
+ *     it is explicitly designed to do relatively little. Tiles store 
+ *     information about themselves -- such as the URL that they are related
+ *     to, and their size - but do not add themselves to the layer div 
+ *     automatically, for example. Create a new tile with the 
+ *     <OpenLayers.Tile> constructor, or a subclass. 
+ * 
+ * TBD 3.0 - remove reference to url in above paragraph
+ * 
+ */
+OpenLayers.Tile = OpenLayers.Class({
+    
+    /** 
+     * Constant: EVENT_TYPES
+     * {Array(String)} Supported application event types
+     */
+    EVENT_TYPES: [ "loadstart", "loadend", "reload", "unload"],
+    
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>} An events object that handles all 
+     *                       events on the tile.
+     */
+    events: null,
+
+    /**
+     * Property: id 
+     * {String} null
+     */
+    id: null,
+    
+    /** 
+     * Property: layer 
+     * {<OpenLayers.Layer>} layer the tile is attached to 
+     */
+    layer: null,
+    
+    /**
+     * Property: url
+     * {String} url of the request.
+     *
+     * TBD 3.0 
+     * Deprecated. The base tile class does not need an url. This should be 
+     * handled in subclasses. Does not belong here.
+     */
+    url: null,
+
+    /** 
+     * APIProperty: bounds 
+     * {<OpenLayers.Bounds>} null
+     */
+    bounds: null,
+    
+    /** 
+     * Property: size 
+     * {<OpenLayers.Size>} null
+     */
+    size: null,
+    
+    /** 
+     * Property: position 
+     * {<OpenLayers.Pixel>} Top Left pixel of the tile
+     */    
+    position: null,
+
+    /**
+     * Property: isLoading
+     * {Boolean} Is the tile loading?
+     */
+    isLoading: false,
+    
+    /**
+     * Property: isBackBuffer
+     * {Boolean} Is this tile a back buffer tile?
+     */
+    isBackBuffer: false,
+    
+    /**
+     * Property: lastRatio
+     * {Float} Used in transition code only.  This is the previous ratio
+     *     of the back buffer tile resolution to the map resolution.  Compared
+     *     with the current ratio to determine if zooming occurred.
+     */
+    lastRatio: 1,
+
+    /**
+     * Property: isFirstDraw
+     * {Boolean} Is this the first time the tile is being drawn?
+     *     This is used to force resetBackBuffer to synchronize
+     *     the backBufferTile with the foreground tile the first time
+     *     the foreground tile loads so that if the user zooms
+     *     before the layer has fully loaded, the backBufferTile for
+     *     tiles that have been loaded can be used.
+     */
+    isFirstDraw: true,
+        
+    /**
+     * Property: backBufferTile
+     * {<OpenLayers.Tile>} A clone of the tile used to create transition
+     *     effects when the tile is moved or changes resolution.
+     */
+    backBufferTile: null,
+        
+    /** TBD 3.0 -- remove 'url' from the list of parameters to the constructor.
+     *             there is no need for the base tile class to have a url.
+     * 
+     * Constructor: OpenLayers.Tile
+     * Constructor for a new <OpenLayers.Tile> instance.
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} layer that the tile will go in.
+     * position - {<OpenLayers.Pixel>}
+     * bounds - {<OpenLayers.Bounds>}
+     * url - {<String>}
+     * size - {<OpenLayers.Size>}
+     */   
+    initialize: function(layer, position, bounds, url, size) {
+        this.layer = layer;
+        this.position = position.clone();
+        this.bounds = bounds.clone();
+        this.url = url;
+        this.size = size.clone();
+
+        //give the tile a unique id based on its BBOX.
+        this.id = OpenLayers.Util.createUniqueID("Tile_");
+        
+        this.events = new OpenLayers.Events(this, null, this.EVENT_TYPES);
+    },
+
+    /**
+     * Method: unload
+     * Call immediately before destroying if you are listening to tile
+     * events, so that counters are properly handled if tile is still
+     * loading at destroy-time. Will only fire an event if the tile is
+     * still loading.
+     */
+    unload: function() {
+       if (this.isLoading) { 
+           this.isLoading = false; 
+           this.events.triggerEvent("unload"); 
+       }
+    },
+    
+    /** 
+     * APIMethod: destroy
+     * Nullify references to prevent circular references and memory leaks.
+     */
+    destroy:function() {
+        if (OpenLayers.Util.indexOf(this.layer.SUPPORTED_TRANSITIONS, 
+                this.layer.transitionEffect) != -1) {
+            this.layer.events.unregister("loadend", this, this.resetBackBuffer);
+            this.events.unregister('loadend', this, this.resetBackBuffer);            
+        } else {
+            this.events.unregister('loadend', this, this.showTile);
+        }
+        this.layer  = null;
+        this.bounds = null;
+        this.size = null;
+        this.position = null;
+        
+        this.events.destroy();
+        this.events = null;
+        
+        /* clean up the backBufferTile if it exists */
+        if (this.backBufferTile) {
+            this.backBufferTile.destroy();
+            this.backBufferTile = null;
+        }
+    },
+    
+    /**
+     * Method: clone
+     *
+     * Parameters:
+     * obj - {<OpenLayers.Tile>} The tile to be cloned
+     *
+     * Returns:
+     * {<OpenLayers.Tile>} An exact clone of this <OpenLayers.Tile>
+     */
+    clone: function (obj) {
+        if (obj == null) {
+            obj = new OpenLayers.Tile(this.layer, 
+                                      this.position, 
+                                      this.bounds, 
+                                      this.url, 
+                                      this.size);
+        } 
+        
+        // catch any randomly tagged-on properties
+        OpenLayers.Util.applyDefaults(obj, this);
+        
+        return obj;
+    },
+
+    /**
+     * Method: draw
+     * Clear whatever is currently in the tile, then return whether or not 
+     *     it should actually be re-drawn.
+     * 
+     * Returns:
+     * {Boolean} Whether or not the tile should actually be drawn. Note that 
+     *     this is not really the best way of doing things, but such is 
+     *     the way the code has been developed. Subclasses call this and
+     *     depend on the return to know if they should draw or not.
+     */
+    draw: function() {
+        var maxExtent = this.layer.maxExtent;
+        var withinMaxExtent = (maxExtent &&
+                               this.bounds.intersectsBounds(maxExtent, false));
+ 
+        // The only case where we *wouldn't* want to draw the tile is if the 
+        // tile is outside its layer's maxExtent.
+        var drawTile = (withinMaxExtent || this.layer.displayOutsideMaxExtent);
+
+        if (OpenLayers.Util.indexOf(this.layer.SUPPORTED_TRANSITIONS, this.layer.transitionEffect) != -1) {
+            if (drawTile) {
+                //we use a clone of this tile to create a double buffer for visual
+                //continuity.  The backBufferTile is used to create transition
+                //effects while the tile in the grid is repositioned and redrawn
+                if (!this.backBufferTile) {
+                    this.backBufferTile = this.clone();
+                    this.backBufferTile.hide();
+                    // this is important.  It allows the backBuffer to place itself
+                    // appropriately in the DOM.  The Image subclass needs to put
+                    // the backBufferTile behind the main tile so the tiles can
+                    // load over top and display as soon as they are loaded.
+                    this.backBufferTile.isBackBuffer = true;
+                    
+                    // potentially end any transition effects when the tile loads
+                    this.events.register('loadend', this, this.resetBackBuffer);
+                    
+                    // clear transition back buffer tile only after all tiles in
+                    // this layer have loaded to avoid visual glitches
+                    this.layer.events.register("loadend", this, this.resetBackBuffer);
+                }
+                // run any transition effects
+                this.startTransition();
+            } else {
+                // if we aren't going to draw the tile, then the backBuffer should
+                // be hidden too!
+                if (this.backBufferTile) {
+                    this.backBufferTile.clear();
+                }
+            }
+        } else {
+            if (drawTile && this.isFirstDraw) {
+                this.events.register('loadend', this, this.showTile);
+                this.isFirstDraw = false;
+            }   
+        }    
+        this.shouldDraw = drawTile;
+        
+        //clear tile's contents and mark as not drawn
+        this.clear();
+        
+        return drawTile;
+    },
+    
+    /** 
+     * Method: moveTo
+     * Reposition the tile.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     * redraw - {Boolean} Call draw method on tile after moving.
+     *     Default is true
+     */
+    moveTo: function (bounds, position, redraw) {
+        if (redraw == null) {
+            redraw = true;
+        }
+
+        this.bounds = bounds.clone();
+        this.position = position.clone();
+        if (redraw) {
+            this.draw();
+        }
+    },
+
+    /** 
+     * Method: clear
+     * Clear the tile of any bounds/position-related data so that it can 
+     *     be reused in a new location. To be implemented by subclasses.
+     */
+    clear: function() {
+        // to be implemented by subclasses
+    },
+    
+    /**   
+     * Method: getBoundsFromBaseLayer
+     * Take the pixel locations of the corner of the tile, and pass them to 
+     *     the base layer and ask for the location of those pixels, so that 
+     *     displaying tiles over Google works fine.
+     *
+     * Parameters:
+     * position - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * bounds - {<OpenLayers.Bounds>} 
+     */
+    getBoundsFromBaseLayer: function(position) {
+        var msg = OpenLayers.i18n('reprojectDeprecated',
+                                              {'layerName':this.layer.name});
+        OpenLayers.Console.warn(msg);
+        var topLeft = this.layer.map.getLonLatFromLayerPx(position); 
+        var bottomRightPx = position.clone();
+        bottomRightPx.x += this.size.w;
+        bottomRightPx.y += this.size.h;
+        var bottomRight = this.layer.map.getLonLatFromLayerPx(bottomRightPx); 
+        // Handle the case where the base layer wraps around the date line.
+        // Google does this, and it breaks WMS servers to request bounds in 
+        // that fashion.  
+        if (topLeft.lon > bottomRight.lon) {
+            if (topLeft.lon < 0) {
+                topLeft.lon = -180 - (topLeft.lon+180);
+            } else {
+                bottomRight.lon = 180+bottomRight.lon+180;
+            }        
+        }
+        var bounds = new OpenLayers.Bounds(topLeft.lon, 
+                                       bottomRight.lat, 
+                                       bottomRight.lon, 
+                                       topLeft.lat);  
+        return bounds;
+    },        
+    
+    /** 
+     * Method: startTransition
+     * Prepare the tile for a transition effect.  To be
+     *     implemented by subclasses.
+     */
+    startTransition: function() {},
+    
+    /** 
+     * Method: resetBackBuffer
+     * Triggered by two different events, layer loadend, and tile loadend.
+     *     In any of these cases, we check to see if we can hide the 
+     *     backBufferTile yet and update its parameters to match the 
+     *     foreground tile.
+     *
+     * Basic logic:
+     *  - If the backBufferTile hasn't been drawn yet, reset it
+     *  - If layer is still loading, show foreground tile but don't hide
+     *    the backBufferTile yet
+     *  - If layer is done loading, reset backBuffer tile and show 
+     *    foreground tile
+     */
+    resetBackBuffer: function() {
+        this.showTile();
+        if (this.backBufferTile && 
+            (this.isFirstDraw || !this.layer.numLoadingTiles)) {
+            this.isFirstDraw = false;
+            // check to see if the backBufferTile is within the max extents
+            // before rendering it 
+            var maxExtent = this.layer.maxExtent;
+            var withinMaxExtent = (maxExtent &&
+                                   this.bounds.intersectsBounds(maxExtent, false));
+            if (withinMaxExtent) {
+                this.backBufferTile.position = this.position;
+                this.backBufferTile.bounds = this.bounds;
+                this.backBufferTile.size = this.size;
+                this.backBufferTile.imageSize = this.layer.imageSize || this.size;
+                this.backBufferTile.imageOffset = this.layer.imageOffset;
+                this.backBufferTile.resolution = this.layer.getResolution();
+                this.backBufferTile.renderTile();
+            }
+        }
+    },
+        
+    /** 
+     * Method: showTile
+     * Show the tile only if it should be drawn.
+     */
+    showTile: function() { 
+        if (this.shouldDraw) {
+            this.show();
+        }
+    },
+    
+    /** 
+     * Method: show
+     * Show the tile.  To be implemented by subclasses.
+     */
+    show: function() { },
+    
+    /** 
+     * Method: hide
+     * Hide the tile.  To be implemented by subclasses.
+     */
+    hide: function() { },
+    
+    CLASS_NAME: "OpenLayers.Tile"
+});
+/* ======================================================================
+    OpenLayers/Handler.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Events.js
+ */
+
+/**
+ * Class: OpenLayers.Handler
+ * Base class to construct a higher-level handler for event sequences.  All
+ *     handlers have activate and deactivate methods.  In addition, they have
+ *     methods named like browser events.  When a handler is activated, any
+ *     additional methods named like a browser event is registered as a
+ *     listener for the corresponding event.  When a handler is deactivated,
+ *     those same methods are unregistered as event listeners.
+ *
+ * Handlers also typically have a callbacks object with keys named like
+ *     the abstracted events or event sequences that they are in charge of
+ *     handling.  The controls that wrap handlers define the methods that
+ *     correspond to these abstract events - so instead of listening for
+ *     individual browser events, they only listen for the abstract events
+ *     defined by the handler.
+ *     
+ * Handlers are created by controls, which ultimately have the responsibility
+ *     of making changes to the the state of the application.  Handlers
+ *     themselves may make temporary changes, but in general are expected to
+ *     return the application in the same state that they found it.
+ */
+OpenLayers.Handler = OpenLayers.Class({
+
+    /**
+     * Property: id
+     * {String}
+     */
+    id: null,
+        
+    /**
+     * APIProperty: control
+     * {<OpenLayers.Control>}. The control that initialized this handler.  The
+     *     control is assumed to have a valid map property - that map is used
+     *     in the handler's own setMap method.
+     */
+    control: null,
+
+    /**
+     * Property: map
+     * {<OpenLayers.Map>}
+     */
+    map: null,
+
+    /**
+     * APIProperty: keyMask
+     * {Integer} Use bitwise operators and one or more of the OpenLayers.Handler
+     *     constants to construct a keyMask.  The keyMask is used by
+     *     <checkModifiers>.  If the keyMask matches the combination of keys
+     *     down on an event, checkModifiers returns true.
+     *
+     * Example:
+     * (code)
+     *     // handler only responds if the Shift key is down
+     *     handler.keyMask = OpenLayers.Handler.MOD_SHIFT;
+     *
+     *     // handler only responds if Ctrl-Shift is down
+     *     handler.keyMask = OpenLayers.Handler.MOD_SHIFT |
+     *                       OpenLayers.Handler.MOD_CTRL;
+     * (end)
+     */
+    keyMask: null,
+
+    /**
+     * Property: active
+     * {Boolean}
+     */
+    active: false,
+    
+    /**
+     * Property: evt
+     * {Event} This property references the last event handled by the handler.
+     *     Note that this property is not part of the stable API.  Use of the
+     *     evt property should be restricted to controls in the library
+     *     or other applications that are willing to update with changes to
+     *     the OpenLayers code.
+     */
+    evt: null,
+
+    /**
+     * Constructor: OpenLayers.Handler
+     * Construct a handler.
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that initialized this
+     *     handler.  The control is assumed to have a valid map property; that
+     *     map is used in the handler's own setMap method.
+     * callbacks - {Object} An object whose properties correspond to abstracted
+     *     events or sequences of browser events.  The values for these
+     *     properties are functions defined by the control that get called by
+     *     the handler.
+     * options - {Object} An optional object whose properties will be set on
+     *     the handler.
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Util.extend(this, options);
+        this.control = control;
+        this.callbacks = callbacks;
+        if (control.map) {
+            this.setMap(control.map); 
+        }
+
+        OpenLayers.Util.extend(this, options);
+        
+        this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+    },
+    
+    /**
+     * Method: setMap
+     */
+    setMap: function (map) {
+        this.map = map;
+    },
+
+    /**
+     * Method: checkModifiers
+     * Check the keyMask on the handler.  If no <keyMask> is set, this always
+     *     returns true.  If a <keyMask> is set and it matches the combination
+     *     of keys down on an event, this returns true.
+     *
+     * Returns:
+     * {Boolean} The keyMask matches the keys down on an event.
+     */
+    checkModifiers: function (evt) {
+        if(this.keyMask == null) {
+            return true;
+        }
+        /* calculate the keyboard modifier mask for this event */
+        var keyModifiers =
+            (evt.shiftKey ? OpenLayers.Handler.MOD_SHIFT : 0) |
+            (evt.ctrlKey  ? OpenLayers.Handler.MOD_CTRL  : 0) |
+            (evt.altKey   ? OpenLayers.Handler.MOD_ALT   : 0);
+    
+        /* if it differs from the handler object's key mask,
+           bail out of the event handler */
+        return (keyModifiers == this.keyMask);
+    },
+
+    /**
+     * APIMethod: activate
+     * Turn on the handler.  Returns false if the handler was already active.
+     * 
+     * Returns: 
+     * {Boolean} The handler was activated.
+     */
+    activate: function() {
+        if(this.active) {
+            return false;
+        }
+        // register for event handlers defined on this class.
+        var events = OpenLayers.Events.prototype.BROWSER_EVENTS;
+        for (var i = 0; i < events.length; i++) {
+            if (this[events[i]]) {
+                this.register(events[i], this[events[i]]); 
+            }
+        } 
+        this.active = true;
+        return true;
+    },
+    
+    /**
+     * APIMethod: deactivate
+     * Turn off the handler.  Returns false if the handler was already inactive.
+     * 
+     * Returns:
+     * {Boolean} The handler was deactivated.
+     */
+    deactivate: function() {
+        if(!this.active) {
+            return false;
+        }
+        // unregister event handlers defined on this class.
+        var events = OpenLayers.Events.prototype.BROWSER_EVENTS;
+        for (var i = 0; i < events.length; i++) {
+            if (this[events[i]]) {
+                this.unregister(events[i], this[events[i]]); 
+            }
+        } 
+        this.active = false;
+        return true;
+    },
+
+    /**
+    * Method: callback
+    * Trigger the control's named callback with the given arguments
+    *
+    * Parameters:
+    * name - {String} The key for the callback that is one of the properties
+    *     of the handler's callbacks object.
+    * args - {Array(*)} An array of arguments (any type) with which to call 
+    *     the callback (defined by the control).
+    */
+    callback: function (name, args) {
+        if (name && this.callbacks[name]) {
+            this.callbacks[name].apply(this.control, args);
+        }
+    },
+
+    /**
+    * Method: register
+    * register an event on the map
+    */
+    register: function (name, method) {
+        // TODO: deal with registerPriority in 3.0
+        this.map.events.registerPriority(name, this, method);
+        this.map.events.registerPriority(name, this, this.setEvent);
+    },
+
+    /**
+    * Method: unregister
+    * unregister an event from the map
+    */
+    unregister: function (name, method) {
+        this.map.events.unregister(name, this, method);   
+        this.map.events.unregister(name, this, this.setEvent);
+    },
+    
+    /**
+     * Method: setEvent
+     * With each registered browser event, the handler sets its own evt
+     *     property.  This property can be accessed by controls if needed
+     *     to get more information about the event that the handler is
+     *     processing.
+     *
+     * This allows modifier keys on the event to be checked (alt, shift,
+     *     and ctrl cannot be checked with the keyboard handler).  For a
+     *     control to determine which modifier keys are associated with the
+     *     event that a handler is currently processing, it should access
+     *     (code)handler.evt.altKey || handler.evt.shiftKey ||
+     *     handler.evt.ctrlKey(end).
+     *
+     * Parameters:
+     * evt - {Event} The browser event.
+     */
+    setEvent: function(evt) {
+        this.evt = evt;
+        return true;
+    },
+
+    /**
+     * Method: destroy
+     * Deconstruct the handler.
+     */
+    destroy: function () {
+        // unregister event listeners
+        this.deactivate();
+        // eliminate circular references
+        this.control = this.map = null;        
+    },
+
+    CLASS_NAME: "OpenLayers.Handler"
+});
+
+/**
+ * Constant: OpenLayers.Handler.MOD_NONE
+ * If set as the <keyMask>, <checkModifiers> returns false if any key is down.
+ */
+OpenLayers.Handler.MOD_NONE  = 0;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_SHIFT
+ * If set as the <keyMask>, <checkModifiers> returns false if Shift is down.
+ */
+OpenLayers.Handler.MOD_SHIFT = 1;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_CTRL
+ * If set as the <keyMask>, <checkModifiers> returns false if Ctrl is down.
+ */
+OpenLayers.Handler.MOD_CTRL  = 2;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_ALT
+ * If set as the <keyMask>, <checkModifiers> returns false if Alt is down.
+ */
+OpenLayers.Handler.MOD_ALT   = 4;
+
+
+/* ======================================================================
+    OpenLayers/Map.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Util.js
+ * @requires OpenLayers/Events.js
+ * @requires OpenLayers/Tween.js
+ */
+
+/**
+ * Class: OpenLayers.Map
+ * Instances of OpenLayers.Map are interactive maps embedded in a web page.
+ * Create a new map with the <OpenLayers.Map> constructor.
+ * 
+ * On their own maps do not provide much functionality.  To extend a map
+ * it's necessary to add controls (<OpenLayers.Control>) and 
+ * layers (<OpenLayers.Layer>) to the map. 
+ */
+OpenLayers.Map = OpenLayers.Class({
+    
+    /**
+     * Constant: Z_INDEX_BASE
+     * {Object} Base z-indexes for different classes of thing 
+     */
+    Z_INDEX_BASE: { BaseLayer: 100, Overlay: 325, Popup: 750, Control: 1000 },
+
+    /**
+     * Constant: EVENT_TYPES
+     * {Array(String)} Supported application event types.  Register a listener
+     *     for a particular event with the following syntax:
+     * (code)
+     * map.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     *  - *object* {Object} A reference to map.events.object.
+     *  - *element* {DOMElement} A reference to map.events.element.
+     *
+     * Browser events have the following additional properties:
+     *  - *xy* {<OpenLayers.Pixel>} The pixel location of the event (relative
+     *      to the the map viewport).
+     *  - other properties that come with browser events
+     *
+     * Supported map event types:
+     *  - *preaddlayer* triggered before a layer has been added.  The event
+     *      object will include a *layer* property that references the layer  
+     *      to be added.
+     *  - *addlayer* triggered after a layer has been added.  The event object
+     *      will include a *layer* property that references the added layer.
+     *  - *removelayer* triggered after a layer has been removed.  The event
+     *      object will include a *layer* property that references the removed
+     *      layer.
+     *  - *changelayer* triggered after a layer name change, order change, or
+     *      visibility change (due to resolution thresholds).  Listeners will
+     *      receive an event object with *layer* and *property* properties.  The
+     *      *layer* property will be a reference to the changed layer.  The
+     *      *property* property will be a key to the changed property (name,
+     *      visibility, or order).
+     *  - *movestart* triggered after the start of a drag, pan, or zoom
+     *  - *move* triggered after each drag, pan, or zoom
+     *  - *moveend* triggered after a drag, pan, or zoom completes
+     *  - *popupopen* triggered after a popup opens
+     *  - *popupclose* triggered after a popup opens
+     *  - *addmarker* triggered after a marker has been added
+     *  - *removemarker* triggered after a marker has been removed
+     *  - *clearmarkers* triggered after markers have been cleared
+     *  - *mouseover* triggered after mouseover the map
+     *  - *mouseout* triggered after mouseout the map
+     *  - *mousemove* triggered after mousemove the map
+     *  - *dragstart* triggered after the start of a drag
+     *  - *drag* triggered after a drag
+     *  - *dragend* triggered after the end of a drag
+     *  - *changebaselayer* triggered after the base layer changes
+     */
+    EVENT_TYPES: [ 
+        "preaddlayer", "addlayer", "removelayer", "changelayer", "movestart",
+        "move", "moveend", "zoomend", "popupopen", "popupclose",
+        "addmarker", "removemarker", "clearmarkers", "mouseover",
+        "mouseout", "mousemove", "dragstart", "drag", "dragend",
+        "changebaselayer"],
+
+    /**
+     * Property: id
+     * {String} Unique identifier for the map
+     */
+    id: null,
+    
+    /**
+     * Property: fractionalZoom
+     * {Boolean} For a base layer that supports it, allow the map resolution
+     *     to be set to a value between one of the values in the resolutions
+     *     array.  Default is false.
+     *
+     * When fractionalZoom is set to true, it is possible to zoom to
+     *     an arbitrary extent.  This requires a base layer from a source
+     *     that supports requests for arbitrary extents (i.e. not cached
+     *     tiles on a regular lattice).  This means that fractionalZoom
+     *     will not work with commercial layers (Google, Yahoo, VE), layers
+     *     using TileCache, or any other pre-cached data sources.
+     *
+     * If you are using fractionalZoom, then you should also use
+     *     <getResolutionForZoom> instead of layer.resolutions[zoom] as the
+     *     former works for non-integer zoom levels.
+     */
+    fractionalZoom: false,
+    
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>} An events object that handles all 
+     *                       events on the map
+     */
+    events: null,
+
+    /**
+     * APIProperty: div
+     * {DOMElement} The element that contains the map
+     */
+    div: null,
+    
+    /**
+     * Property: dragging
+     * {Boolean} The map is currently being dragged.
+     */
+    dragging: false,
+
+    /**
+     * Property: size
+     * {<OpenLayers.Size>} Size of the main div (this.div)
+     */
+    size: null,
+    
+    /**
+     * Property: viewPortDiv
+     * {HTMLDivElement} The element that represents the map viewport
+     */
+    viewPortDiv: null,
+
+    /**
+     * Property: layerContainerOrigin
+     * {<OpenLayers.LonLat>} The lonlat at which the later container was
+     *                       re-initialized (on-zoom)
+     */
+    layerContainerOrigin: null,
+
+    /**
+     * Property: layerContainerDiv
+     * {HTMLDivElement} The element that contains the layers.
+     */
+    layerContainerDiv: null,
+
+    /**
+     * APIProperty: layers
+     * {Array(<OpenLayers.Layer>)} Ordered list of layers in the map
+     */
+    layers: null,
+
+    /**
+     * Property: controls
+     * {Array(<OpenLayers.Control>)} List of controls associated with the map
+     */
+    controls: null,
+
+    /**
+     * Property: popups
+     * {Array(<OpenLayers.Popup>)} List of popups associated with the map
+     */
+    popups: null,
+
+    /**
+     * APIProperty: baseLayer
+     * {<OpenLayers.Layer>} The currently selected base layer.  This determines
+     * min/max zoom level, projection, etc.
+     */
+    baseLayer: null,
+    
+    /**
+     * Property: center
+     * {<OpenLayers.LonLat>} The current center of the map
+     */
+    center: null,
+
+    /**
+     * Property: resolution
+     * {Float} The resolution of the map.
+     */
+    resolution: null,
+
+    /**
+     * Property: zoom
+     * {Integer} The current zoom level of the map
+     */
+    zoom: 0,    
+
+    /**
+     * Property: viewRequestID
+     * {String} Used to store a unique identifier that changes when the map 
+     *          view changes. viewRequestID should be used when adding data 
+     *          asynchronously to the map: viewRequestID is incremented when 
+     *          you initiate your request (right now during changing of 
+     *          baselayers and changing of zooms). It is stored here in the 
+     *          map and also in the data that will be coming back 
+     *          asynchronously. Before displaying this data on request 
+     *          completion, we check that the viewRequestID of the data is 
+     *          still the same as that of the map. Fix for #480
+     */
+    viewRequestID: 0,
+
+  // Options
+
+    /**
+     * APIProperty: tileSize
+     * {<OpenLayers.Size>} Set in the map options to override the default tile
+     *                     size for this map.
+     */
+    tileSize: null,
+
+    /**
+     * APIProperty: projection
+     * {String} Set in the map options to override the default projection 
+     *          string this map - also set maxExtent, maxResolution, and 
+     *          units if appropriate.
+     */
+    projection: "EPSG:4326",    
+        
+    /**
+     * APIProperty: units
+     * {String} The map units.  Defaults to 'degrees'.  Possible values are
+     *          'degrees' (or 'dd'), 'm', 'ft', 'km', 'mi', 'inches'.
+     */
+    units: 'degrees',
+
+    /**
+     * APIProperty: resolutions
+     * {Array(Float)} A list of map resolutions (map units per pixel) in 
+     *     descending order.  If this is not set in the layer constructor, it 
+     *     will be set based on other resolution related properties 
+     *     (maxExtent, maxResolution, maxScale, etc.).
+     */
+    resolutions: null,
+
+    /**
+     * APIProperty: maxResolution
+     * {Float} Default max is 360 deg / 256 px, which corresponds to
+     *          zoom level 0 on gmaps.  Specify a different value in the map 
+     *          options if you are not using a geographic projection and 
+     *          displaying the whole world.
+     */
+    maxResolution: 1.40625,
+
+    /**
+     * APIProperty: minResolution
+     * {Float}
+     */
+    minResolution: null,
+
+    /**
+     * APIProperty: maxScale
+     * {Float}
+     */
+    maxScale: null,
+
+    /**
+     * APIProperty: minScale
+     * {Float}
+     */
+    minScale: null,
+
+    /**
+     * APIProperty: maxExtent
+     * {<OpenLayers.Bounds>} The maximum extent for the map.  Defaults to the
+     *                       whole world in decimal degrees 
+     *                       (-180, -90, 180, 90).  Specify a different
+     *                        extent in the map options if you are not using a 
+     *                        geographic projection and displaying the whole 
+     *                        world.
+     */
+    maxExtent: null,
+    
+    /**
+     * APIProperty: minExtent
+     * {<OpenLayers.Bounds>}
+     */
+    minExtent: null,
+    
+    /**
+     * APIProperty: restrictedExtent
+     * {<OpenLayers.Bounds>} Limit map navigation to this extent where possible.
+     *     If a non-null restrictedExtent is set, panning will be restricted
+     *     to the given bounds.  In addition, zooming to a resolution that
+     *     displays more than the restricted extent will center the map
+     *     on the restricted extent.  If you wish to limit the zoom level
+     *     or resolution, use maxResolution.
+     */
+    restrictedExtent: null,
+
+    /**
+     * APIProperty: numZoomLevels
+     * {Integer} Number of zoom levels for the map.  Defaults to 16.  Set a
+     *           different value in the map options if needed.
+     */
+    numZoomLevels: 16,
+
+    /**
+     * APIProperty: theme
+     * {String} Relative path to a CSS file from which to load theme styles.
+     *          Specify null in the map options (e.g. {theme: null}) if you 
+     *          want to get cascading style declarations - by putting links to 
+     *          stylesheets or style declarations directly in your page.
+     */
+    theme: null,
+    
+    /** 
+     * APIProperty: displayProjection
+     * {<OpenLayers.Projection>} Requires proj4js support.Projection used by
+     *     several controls to display data to user. If this property is set,
+     *     it will be set on any control which has a null displayProjection
+     *     property at the time the control is added to the map. 
+     */
+    displayProjection: null,
+
+    /**
+     * APIProperty: fallThrough
+     * {Boolean} Should OpenLayers allow events on the map to fall through to
+     *           other elements on the page, or should it swallow them? (#457)
+     *           Default is to fall through.
+     */
+    fallThrough: true,
+    
+    /**
+     * Property: panTween
+     * {OpenLayers.Tween} Animated panning tween object, see panTo()
+     */
+    panTween: null,
+
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     */
+    eventListeners: null,
+
+    /**
+     * Property: panMethod
+     * {Function} The Easing function to be used for tweening.  Default is
+     * OpenLayers.Easing.Expo.easeOut. Setting this to 'null' turns off
+     * animated panning.
+     */
+    panMethod: OpenLayers.Easing.Expo.easeOut,
+    
+    /**
+     * Property: paddingForPopups
+     * {<OpenLayers.Bounds>} Outside margin of the popup. Used to prevent 
+     *     the popup from getting too close to the map border.
+     */
+    paddingForPopups : null,
+    
+    /**
+     * Constructor: OpenLayers.Map
+     * Constructor for a new OpenLayers.Map instance.
+     *
+     * Parameters:
+     * div - {String} Id of an element in your page that will contain the map.
+     * options - {Object} Optional object with properties to tag onto the map.
+     *
+     * Examples:
+     * (code)
+     * // create a map with default options in an element with the id "map1"
+     * var map = new OpenLayers.Map("map1");
+     *
+     * // create a map with non-default options in an element with id "map2"
+     * var options = {
+     *     maxExtent: new OpenLayers.Bounds(-200000, -200000, 200000, 200000),
+     *     maxResolution: 156543,
+     *     units: 'm',
+     *     projection: "EPSG:41001"
+     * };
+     * var map = new OpenLayers.Map("map2", options);
+     * (end)
+     */    
+    initialize: function (div, options) {
+
+        // Simple-type defaults are set in class definition. 
+        //  Now set complex-type defaults 
+        this.tileSize = new OpenLayers.Size(OpenLayers.Map.TILE_WIDTH,
+                                            OpenLayers.Map.TILE_HEIGHT);
+        
+        this.maxExtent = new OpenLayers.Bounds(-180, -90, 180, 90);
+        
+        this.paddingForPopups = new OpenLayers.Bounds(15, 15, 15, 15);
+
+        this.theme = OpenLayers._getScriptLocation() + 
+                             'theme/default/style.css'; 
+
+        // now override default options 
+        OpenLayers.Util.extend(this, options);
+
+        this.id = OpenLayers.Util.createUniqueID("OpenLayers.Map_");
+
+        this.div = OpenLayers.Util.getElement(div);
+
+        // the viewPortDiv is the outermost div we modify
+        var id = this.div.id + "_OpenLayers_ViewPort";
+        this.viewPortDiv = OpenLayers.Util.createDiv(id, null, null, null,
+                                                     "relative", null,
+                                                     "hidden");
+        this.viewPortDiv.style.width = "100%";
+        this.viewPortDiv.style.height = "100%";
+        this.viewPortDiv.className = "olMapViewport";
+        this.div.appendChild(this.viewPortDiv);
+
+        // the layerContainerDiv is the one that holds all the layers
+        id = this.div.id + "_OpenLayers_Container";
+        this.layerContainerDiv = OpenLayers.Util.createDiv(id);
+        this.layerContainerDiv.style.zIndex=this.Z_INDEX_BASE['Popup']-1;
+        
+        this.viewPortDiv.appendChild(this.layerContainerDiv);
+
+        this.events = new OpenLayers.Events(this, 
+                                            this.div, 
+                                            this.EVENT_TYPES, 
+                                            this.fallThrough);
+        this.updateSize();
+        if(this.eventListeners instanceof Object) {
+            this.events.on(this.eventListeners);
+        }
+ 
+        // update the map size and location before the map moves
+        this.events.register("movestart", this, this.updateSize);
+
+        // Because Mozilla does not support the "resize" event for elements 
+        // other than "window", we need to put a hack here. 
+        if (OpenLayers.String.contains(navigator.appName, "Microsoft")) {
+            // If IE, register the resize on the div
+            this.events.register("resize", this, this.updateSize);
+        } else {
+            // Else updateSize on catching the window's resize
+            //  Note that this is ok, as updateSize() does nothing if the 
+            //  map's size has not actually changed.
+            this.updateSizeDestroy = OpenLayers.Function.bind(this.updateSize, 
+                this);
+            OpenLayers.Event.observe(window, 'resize',
+                            this.updateSizeDestroy);
+        }
+        
+        // only append link stylesheet if the theme property is set
+        if(this.theme) {
+            // check existing links for equivalent url
+            var addNode = true;
+            var nodes = document.getElementsByTagName('link');
+            for(var i=0; i<nodes.length; ++i) {
+                if(OpenLayers.Util.isEquivalentUrl(nodes.item(i).href,
+                                                   this.theme)) {
+                    addNode = false;
+                    break;
+                }
+            }
+            // only add a new node if one with an equivalent url hasn't already
+            // been added
+            if(addNode) {
+                var cssNode = document.createElement('link');
+                cssNode.setAttribute('rel', 'stylesheet');
+                cssNode.setAttribute('type', 'text/css');
+                cssNode.setAttribute('href', this.theme);
+                document.getElementsByTagName('head')[0].appendChild(cssNode);
+            }
+        }
+
+        this.layers = [];
+        
+        if (this.controls == null) {
+            if (OpenLayers.Control != null) { // running full or lite?
+                this.controls = [ new OpenLayers.Control.Navigation(),
+                                  new OpenLayers.Control.PanZoom(),
+                                  new OpenLayers.Control.ArgParser(),
+                                  new OpenLayers.Control.Attribution()
+                                ];
+            } else {
+                this.controls = [];
+            }
+        }
+
+        for(var i=0; i < this.controls.length; i++) {
+            this.addControlToMap(this.controls[i]);
+        }
+
+        this.popups = [];
+
+        this.unloadDestroy = OpenLayers.Function.bind(this.destroy, this);
+        
+
+        // always call map.destroy()
+        OpenLayers.Event.observe(window, 'unload', this.unloadDestroy);
+
+    },
+
+    /**
+     * Method: unloadDestroy
+     * Function that is called to destroy the map on page unload. stored here
+     *     so that if map is manually destroyed, we can unregister this.
+     */
+    unloadDestroy: null,
+    
+    /**
+     * Method: updateSizeDestroy
+     * When the map is destroyed, we need to stop listening to updateSize
+     *    events: this method stores the function we need to unregister in 
+     *    non-IE browsers.
+     */
+    updateSizeDestroy: null,
+
+    /**
+     * APIMethod: destroy
+     * Destroy this map
+     */
+    destroy:function() {
+        // if unloadDestroy is null, we've already been destroyed
+        if (!this.unloadDestroy) {
+            return false;
+        }
+
+        // map has been destroyed. dont do it again!
+        OpenLayers.Event.stopObserving(window, 'unload', this.unloadDestroy);
+        this.unloadDestroy = null;
+
+        if (this.updateSizeDestroy) {
+            OpenLayers.Event.stopObserving(window, 'resize', 
+                                           this.updateSizeDestroy);
+        } else {
+            this.events.unregister("resize", this, this.updateSize);
+        }    
+        
+        this.paddingForPopups = null;    
+
+        if (this.controls != null) {
+            for (var i = this.controls.length - 1; i>=0; --i) {
+                this.controls[i].destroy();
+            } 
+            this.controls = null;
+        }
+        if (this.layers != null) {
+            for (var i = this.layers.length - 1; i>=0; --i) {
+                //pass 'false' to destroy so that map wont try to set a new 
+                // baselayer after each baselayer is removed
+                this.layers[i].destroy(false);
+            } 
+            this.layers = null;
+        }
+        if (this.viewPortDiv) {
+            this.div.removeChild(this.viewPortDiv);
+        }
+        this.viewPortDiv = null;
+
+        if(this.eventListeners) {
+            this.events.un(this.eventListeners);
+            this.eventListeners = null;
+        }
+        this.events.destroy();
+        this.events = null;
+
+    },
+
+    /**
+     * APIMethod: setOptions
+     * Change the map options
+     *
+     * Parameters:
+     * options - {Object} Hashtable of options to tag to the map
+     */
+    setOptions: function(options) {
+        OpenLayers.Util.extend(this, options);
+    },
+
+    /**
+     * APIMethod: getTileSize
+     * Get the tile size for the map
+     *
+     * Returns:
+     * {<OpenLayers.Size>}
+     */
+     getTileSize: function() {
+         return this.tileSize;
+     },
+
+
+    /**
+     * APIMethod: getBy
+     * Get a list of objects given a property and a match item.
+     *
+     * Parameters:
+     * array - {String} A property on the map whose value is an array.
+     * property - {String} A property on each item of the given array.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(map[array][i][property]) evaluates to true, the item will
+     *     be included in the array returned.  If no items are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array} An array of items where the given property matches the given
+     *     criteria.
+     */
+    getBy: function(array, property, match) {
+        var test = (typeof match.test == "function");
+        var found = OpenLayers.Array.filter(this[array], function(item) {
+            return item[property] == match || (test && match.test(item[property]));
+        });
+        return found;
+    },
+
+    /**
+     * APIMethod: getLayersBy
+     * Get a list of layers with properties matching the given criteria.
+     *
+     * Parameter:
+     * property - {String} A layer property to be matched.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(layer[property]) evaluates to true, the layer will be
+     *     included in the array returned.  If no layers are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Layer>)} A list of layers matching the given criteria.
+     *     An empty array is returned if no matches are found.
+     */
+    getLayersBy: function(property, match) {
+        return this.getBy("layers", property, match);
+    },
+
+    /**
+     * APIMethod: getLayersByName
+     * Get a list of layers with names matching the given name.
+     *
+     * Parameter:
+     * match - {String | Object} A layer name.  The name can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     name.test(layer.name) evaluates to true, the layer will be included
+     *     in the list of layers returned.  If no layers are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Layer>)} A list of layers matching the given name.
+     *     An empty array is returned if no matches are found.
+     */
+    getLayersByName: function(match) {
+        return this.getLayersBy("name", match);
+    },
+
+    /**
+     * APIMethod: getLayersByClass
+     * Get a list of layers of a given class (CLASS_NAME).
+     *
+     * Parameter:
+     * match - {String | Object} A layer class name.  The match can also be a
+     *     regular expression literal or object.  In addition, it can be any
+     *     object with a method named test.  For reqular expressions or other,
+     *     if type.test(layer.CLASS_NAME) evaluates to true, the layer will
+     *     be included in the list of layers returned.  If no layers are
+     *     found, an empty array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Layer>)} A list of layers matching the given class.
+     *     An empty array is returned if no matches are found.
+     */
+    getLayersByClass: function(match) {
+        return this.getLayersBy("CLASS_NAME", match);
+    },
+
+    /**
+     * APIMethod: getControlsBy
+     * Get a list of controls with properties matching the given criteria.
+     *
+     * Parameter:
+     * property - {String} A control property to be matched.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(layer[property]) evaluates to true, the layer will be
+     *     included in the array returned.  If no layers are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given
+     *     criteria.  An empty array is returned if no matches are found.
+     */
+    getControlsBy: function(property, match) {
+        return this.getBy("controls", property, match);
+    },
+
+    /**
+     * APIMethod: getControlsByClass
+     * Get a list of controls of a given class (CLASS_NAME).
+     *
+     * Parameter:
+     * match - {String | Object} A control class name.  The match can also be a
+     *     regular expression literal or object.  In addition, it can be any
+     *     object with a method named test.  For reqular expressions or other,
+     *     if type.test(control.CLASS_NAME) evaluates to true, the control will
+     *     be included in the list of controls returned.  If no controls are
+     *     found, an empty array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given class.
+     *     An empty array is returned if no matches are found.
+     */
+    getControlsByClass: function(match) {
+        return this.getControlsBy("CLASS_NAME", match);
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                  Layer Functions                     */
+  /*                                                      */
+  /*     The following functions deal with adding and     */
+  /*        removing Layers to and from the Map           */
+  /*                                                      */
+  /********************************************************/         
+
+    /**
+     * APIMethod: getLayer
+     * Get a layer based on its id
+     *
+     * Parameter:
+     * id - {String} A layer id
+     *
+     * Returns:
+     * {<OpenLayers.Layer>} The Layer with the corresponding id from the map's 
+     *                      layer collection, or null if not found.
+     */
+    getLayer: function(id) {
+        var foundLayer = null;
+        for (var i = 0; i < this.layers.length; i++) {
+            var layer = this.layers[i];
+            if (layer.id == id) {
+                foundLayer = layer;
+                break;
+            }
+        }
+        return foundLayer;
+    },
+
+    /**
+    * Method: setLayerZIndex
+    * 
+    * Parameters:
+    * layer - {<OpenLayers.Layer>} 
+    * zIdx - {int} 
+    */    
+    setLayerZIndex: function (layer, zIdx) {
+        layer.setZIndex(
+            this.Z_INDEX_BASE[layer.isBaseLayer ? 'BaseLayer' : 'Overlay']
+            + zIdx * 5 );
+    },
+
+    /**
+     * Method: resetLayersZIndex
+     * Reset each layer's z-index based on layer's array index
+     */
+    resetLayersZIndex: function() {
+        for (var i = 0; i < this.layers.length; i++) {
+            var layer = this.layers[i];
+            this.setLayerZIndex(layer, i);
+        }
+    },
+
+    /**
+    * APIMethod: addLayer
+    *
+    * Parameters:
+    * layer - {<OpenLayers.Layer>} 
+    */    
+    addLayer: function (layer) {
+        for(var i=0; i < this.layers.length; i++) {
+            if (this.layers[i] == layer) {
+                var msg = OpenLayers.i18n('layerAlreadyAdded', 
+                                                      {'layerName':layer.name});
+                OpenLayers.Console.warn(msg);
+                return false;
+            }
+        }    
+
+        this.events.triggerEvent("preaddlayer", {layer: layer});
+        
+        layer.div.className = "olLayerDiv";
+        layer.div.style.overflow = "";
+        this.setLayerZIndex(layer, this.layers.length);
+
+        if (layer.isFixed) {
+            this.viewPortDiv.appendChild(layer.div);
+        } else {
+            this.layerContainerDiv.appendChild(layer.div);
+        }
+        this.layers.push(layer);
+        layer.setMap(this);
+
+        if (layer.isBaseLayer)  {
+            if (this.baseLayer == null) {
+                // set the first baselaye we add as the baselayer
+                this.setBaseLayer(layer);
+            } else {
+                layer.setVisibility(false);
+            }
+        } else {
+            layer.redraw();
+        }
+
+        this.events.triggerEvent("addlayer", {layer: layer});
+    },
+
+    /**
+    * APIMethod: addLayers 
+    *
+    * Parameters:
+    * layers - {Array(<OpenLayers.Layer>)} 
+    */    
+    addLayers: function (layers) {
+        for (var i = 0; i <  layers.length; i++) {
+            this.addLayer(layers[i]);
+        }
+    },
+
+    /** 
+     * APIMethod: removeLayer
+     * Removes a layer from the map by removing its visual element (the 
+     *   layer.div property), then removing it from the map's internal list 
+     *   of layers, setting the layer's map property to null. 
+     * 
+     *   a "removelayer" event is triggered.
+     * 
+     *   very worthy of mention is that simply removing a layer from a map
+     *   will not cause the removal of any popups which may have been created
+     *   by the layer. this is due to the fact that it was decided at some
+     *   point that popups would not belong to layers. thus there is no way 
+     *   for us to know here to which layer the popup belongs.
+     *    
+     *     A simple solution to this is simply to call destroy() on the layer.
+     *     the default OpenLayers.Layer class's destroy() function
+     *     automatically takes care to remove itself from whatever map it has
+     *     been attached to. 
+     * 
+     *     The correct solution is for the layer itself to register an 
+     *     event-handler on "removelayer" and when it is called, if it 
+     *     recognizes itself as the layer being removed, then it cycles through
+     *     its own personal list of popups, removing them from the map.
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} 
+     * setNewBaseLayer - {Boolean} Default is true
+     */
+    removeLayer: function(layer, setNewBaseLayer) {
+        if (setNewBaseLayer == null) {
+            setNewBaseLayer = true;
+        }
+
+        if (layer.isFixed) {
+            this.viewPortDiv.removeChild(layer.div);
+        } else {
+            this.layerContainerDiv.removeChild(layer.div);
+        }
+        OpenLayers.Util.removeItem(this.layers, layer);
+        layer.removeMap(this);
+        layer.map = null;
+
+        // if we removed the base layer, need to set a new one
+        if(this.baseLayer == layer) {
+            this.baseLayer = null;
+            if(setNewBaseLayer) {
+                for(var i=0; i < this.layers.length; i++) {
+                    var iLayer = this.layers[i];
+                    if (iLayer.isBaseLayer) {
+                        this.setBaseLayer(iLayer);
+                        break;
+                    }
+                }
+            }
+        }
+
+        this.resetLayersZIndex();
+
+        this.events.triggerEvent("removelayer", {layer: layer});
+    },
+
+    /**
+     * APIMethod: getNumLayers
+     * 
+     * Returns:
+     * {Int} The number of layers attached to the map.
+     */
+    getNumLayers: function () {
+        return this.layers.length;
+    },
+
+    /** 
+     * APIMethod: getLayerIndex
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer>}
+     *
+     * Returns:
+     * {Integer} The current (zero-based) index of the given layer in the map's
+     *           layer stack. Returns -1 if the layer isn't on the map.
+     */
+    getLayerIndex: function (layer) {
+        return OpenLayers.Util.indexOf(this.layers, layer);
+    },
+    
+    /** 
+     * APIMethod: setLayerIndex
+     * Move the given layer to the specified (zero-based) index in the layer
+     *     list, changing its z-index in the map display. Use
+     *     map.getLayerIndex() to find out the current index of a layer. Note
+     *     that this cannot (or at least should not) be effectively used to
+     *     raise base layers above overlays.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} 
+     * idx - {int} 
+     */
+    setLayerIndex: function (layer, idx) {
+        var base = this.getLayerIndex(layer);
+        if (idx < 0) {
+            idx = 0;
+        } else if (idx > this.layers.length) {
+            idx = this.layers.length;
+        }
+        if (base != idx) {
+            this.layers.splice(base, 1);
+            this.layers.splice(idx, 0, layer);
+            for (var i = 0; i < this.layers.length; i++) {
+                this.setLayerZIndex(this.layers[i], i);
+            }
+            this.events.triggerEvent("changelayer", {
+                layer: layer, property: "order"
+            });
+        }
+    },
+
+    /** 
+     * APIMethod: raiseLayer
+     * Change the index of the given layer by delta. If delta is positive, 
+     *     the layer is moved up the map's layer stack; if delta is negative,
+     *     the layer is moved down.  Again, note that this cannot (or at least
+     *     should not) be effectively used to raise base layers above overlays.
+     *
+     * Paremeters:
+     * layer - {<OpenLayers.Layer>} 
+     * idx - {int} 
+     */
+    raiseLayer: function (layer, delta) {
+        var idx = this.getLayerIndex(layer) + delta;
+        this.setLayerIndex(layer, idx);
+    },
+    
+    /** 
+     * APIMethod: setBaseLayer
+     * Allows user to specify one of the currently-loaded layers as the Map's
+     *     new base layer.
+     * 
+     * Parameters:
+     * newBaseLayer - {<OpenLayers.Layer>}
+     */
+    setBaseLayer: function(newBaseLayer) {
+        var oldExtent = null;
+        if (this.baseLayer) {
+            oldExtent = this.baseLayer.getExtent();
+        }
+
+        if (newBaseLayer != this.baseLayer) {
+          
+            // is newBaseLayer an already loaded layer?m
+            if (OpenLayers.Util.indexOf(this.layers, newBaseLayer) != -1) {
+
+                // make the old base layer invisible 
+                if (this.baseLayer != null) {
+                    this.baseLayer.setVisibility(false);
+                }
+
+                // set new baselayer
+                this.baseLayer = newBaseLayer;
+                
+                // Increment viewRequestID since the baseLayer is 
+                // changing. This is used by tiles to check if they should 
+                // draw themselves.
+                this.viewRequestID++;
+                this.baseLayer.visibility = true;
+
+                //redraw all layers
+                var center = this.getCenter();
+                if (center != null) {
+
+                    //either get the center from the old Extent or just from
+                    // the current center of the map. 
+                    var newCenter = (oldExtent) 
+                        ? oldExtent.getCenterLonLat()
+                        : center;
+
+                    //the new zoom will either come from the old Extent or 
+                    // from the current resolution of the map                                                
+                    var newZoom = (oldExtent) 
+                        ? this.getZoomForExtent(oldExtent, true)
+                        : this.getZoomForResolution(this.resolution, true);
+
+                    // zoom and force zoom change
+                    this.setCenter(newCenter, newZoom, false, true);
+                }
+
+                this.events.triggerEvent("changebaselayer", {
+                    layer: this.baseLayer
+                });
+            }        
+        }
+    },
+
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Control Functions                    */
+  /*                                                      */
+  /*     The following functions deal with adding and     */
+  /*        removing Controls to and from the Map         */
+  /*                                                      */
+  /********************************************************/         
+
+    /**
+     * APIMethod: addControl
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>}
+     * px - {<OpenLayers.Pixel>}
+     */    
+    addControl: function (control, px) {
+        this.controls.push(control);
+        this.addControlToMap(control, px);
+    },
+
+    /**
+     * Method: addControlToMap
+     * 
+     * Parameters:
+     * 
+     * control - {<OpenLayers.Control>}
+     * px - {<OpenLayers.Pixel>}
+     */    
+    addControlToMap: function (control, px) {
+        // If a control doesn't have a div at this point, it belongs in the
+        // viewport.
+        control.outsideViewport = (control.div != null);
+        
+        // If the map has a displayProjection, and the control doesn't, set 
+        // the display projection.
+        if (this.displayProjection && !control.displayProjection) {
+            control.displayProjection = this.displayProjection;
+        }    
+        
+        control.setMap(this);
+        var div = control.draw(px);
+        if (div) {
+            if(!control.outsideViewport) {
+                div.style.zIndex = this.Z_INDEX_BASE['Control'] +
+                                    this.controls.length;
+                this.viewPortDiv.appendChild( div );
+            }
+        }
+    },
+    
+    /**
+     * APIMethod: getControl
+     * 
+     * Parameters:
+     * id - {String} ID of the control to return.
+     * 
+     * Returns:
+     * {<OpenLayers.Control>} The control from the map's list of controls 
+     *                        which has a matching 'id'. If none found, 
+     *                        returns null.
+     */    
+    getControl: function (id) {
+        var returnControl = null;
+        for(var i=0; i < this.controls.length; i++) {
+            var control = this.controls[i];
+            if (control.id == id) {
+                returnControl = control;
+                break;
+            }
+        }
+        return returnControl;
+    },
+    
+    /** 
+     * APIMethod: removeControl
+     * Remove a control from the map. Removes the control both from the map 
+     *     object's internal array of controls, as well as from the map's 
+     *     viewPort (assuming the control was not added outsideViewport)
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control to remove.
+     */    
+    removeControl: function (control) {
+        //make sure control is non-null and actually part of our map
+        if ( (control) && (control == this.getControl(control.id)) ) {
+            if (control.div && (control.div.parentNode == this.viewPortDiv)) {
+                this.viewPortDiv.removeChild(control.div);
+            }
+            OpenLayers.Util.removeItem(this.controls, control);
+        }
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                  Popup Functions                     */
+  /*                                                      */
+  /*     The following functions deal with adding and     */
+  /*        removing Popups to and from the Map           */
+  /*                                                      */
+  /********************************************************/         
+
+    /** 
+     * APIMethod: addPopup
+     * 
+     * Parameters:
+     * popup - {<OpenLayers.Popup>}
+     * exclusive - {Boolean} If true, closes all other popups first
+     */
+    addPopup: function(popup, exclusive) {
+
+        if (exclusive) {
+            //remove all other popups from screen
+            for (var i = this.popups.length - 1; i >= 0; --i) {
+                this.removePopup(this.popups[i]);
+            }
+        }
+
+        popup.map = this;
+        this.popups.push(popup);
+        var popupDiv = popup.draw();
+        if (popupDiv) {
+            popupDiv.style.zIndex = this.Z_INDEX_BASE['Popup'] +
+                                    this.popups.length;
+            this.layerContainerDiv.appendChild(popupDiv);
+        }
+    },
+    
+    /** 
+    * APIMethod: removePopup
+    * 
+    * Parameters:
+    * popup - {<OpenLayers.Popup>}
+    */
+    removePopup: function(popup) {
+        OpenLayers.Util.removeItem(this.popups, popup);
+        if (popup.div) {
+            try { this.layerContainerDiv.removeChild(popup.div); }
+            catch (e) { } // Popups sometimes apparently get disconnected
+                      // from the layerContainerDiv, and cause complaints.
+        }
+        popup.map = null;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*              Container Div Functions                 */
+  /*                                                      */
+  /*   The following functions deal with the access to    */
+  /*    and maintenance of the size of the container div  */
+  /*                                                      */
+  /********************************************************/     
+
+    /**
+     * APIMethod: getSize
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} An <OpenLayers.Size> object that represents the 
+     *                     size, in pixels, of the div into which OpenLayers 
+     *                     has been loaded. 
+     *                     Note - A clone() of this locally cached variable is
+     *                     returned, so as not to allow users to modify it.
+     */
+    getSize: function () {
+        var size = null;
+        if (this.size != null) {
+            size = this.size.clone();
+        }
+        return size;
+    },
+
+    /**
+     * APIMethod: updateSize
+     * This function should be called by any external code which dynamically
+     *     changes the size of the map div (because mozilla wont let us catch 
+     *     the "onresize" for an element)
+     */
+    updateSize: function() {
+        // the div might have moved on the page, also
+        this.events.element.offsets = null;
+        var newSize = this.getCurrentSize();
+        var oldSize = this.getSize();
+        if (oldSize == null) {
+            this.size = oldSize = newSize;
+        }
+        if (!newSize.equals(oldSize)) {
+            
+            // store the new size
+            this.size = newSize;
+
+            //notify layers of mapresize
+            for(var i=0; i < this.layers.length; i++) {
+                this.layers[i].onMapResize();                
+            }
+
+            if (this.baseLayer != null) {
+                var center = new OpenLayers.Pixel(newSize.w /2, newSize.h / 2);
+                var centerLL = this.getLonLatFromViewPortPx(center);
+                var zoom = this.getZoom();
+                this.zoom = null;
+                this.setCenter(this.getCenter(), zoom);
+            }
+
+        }
+    },
+    
+    /**
+     * Method: getCurrentSize
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} A new <OpenLayers.Size> object with the dimensions 
+     *                     of the map div
+     */
+    getCurrentSize: function() {
+
+        var size = new OpenLayers.Size(this.div.clientWidth, 
+                                       this.div.clientHeight);
+
+        // Workaround for the fact that hidden elements return 0 for size.
+        if (size.w == 0 && size.h == 0 || isNaN(size.w) && isNaN(size.h)) {
+            var dim = OpenLayers.Element.getDimensions(this.div);
+            size.w = dim.width;
+            size.h = dim.height;
+        }
+        if (size.w == 0 && size.h == 0 || isNaN(size.w) && isNaN(size.h)) {
+            size.w = parseInt(this.div.style.width);
+            size.h = parseInt(this.div.style.height);
+        }
+        return size;
+    },
+
+    /** 
+     * Method: calculateBounds
+     * 
+     * Parameters:
+     * center - {<OpenLayers.LonLat>} Default is this.getCenter()
+     * resolution - {float} Default is this.getResolution() 
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A bounds based on resolution, center, and 
+     *                       current mapsize.
+     */
+    calculateBounds: function(center, resolution) {
+
+        var extent = null;
+        
+        if (center == null) {
+            center = this.getCenter();
+        }                
+        if (resolution == null) {
+            resolution = this.getResolution();
+        }
+    
+        if ((center != null) && (resolution != null)) {
+
+            var size = this.getSize();
+            var w_deg = size.w * resolution;
+            var h_deg = size.h * resolution;
+        
+            extent = new OpenLayers.Bounds(center.lon - w_deg / 2,
+                                           center.lat - h_deg / 2,
+                                           center.lon + w_deg / 2,
+                                           center.lat + h_deg / 2);
+        
+        }
+
+        return extent;
+    },
+
+
+  /********************************************************/
+  /*                                                      */
+  /*            Zoom, Center, Pan Functions               */
+  /*                                                      */
+  /*    The following functions handle the validation,    */
+  /*   getting and setting of the Zoom Level and Center   */
+  /*       as well as the panning of the Map              */
+  /*                                                      */
+  /********************************************************/
+    /**
+     * APIMethod: getCenter
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>}
+     */
+    getCenter: function () {
+        return this.center;
+    },
+
+
+    /**
+     * APIMethod: getZoom
+     * 
+     * Returns:
+     * {Integer}
+     */
+    getZoom: function () {
+        return this.zoom;
+    },
+    
+    /** 
+     * APIMethod: pan
+     * Allows user to pan by a value of screen pixels
+     * 
+     * Parameters:
+     * dx - {Integer}
+     * dy - {Integer}
+     * options - {Object} Options to configure panning:
+     *  - *animate* {Boolean} Use panTo instead of setCenter. Default is true.
+     *  - *dragging* {Boolean} Call setCenter with dragging true.  Default is
+     *    false.
+     */
+    pan: function(dx, dy, options) {
+        // this should be pushed to applyDefaults and extend
+        if (!options) {
+            options = {};
+        }
+        OpenLayers.Util.applyDefaults(options, {
+            animate: true,
+            dragging: false
+        });
+        // getCenter
+        var centerPx = this.getViewPortPxFromLonLat(this.getCenter());
+
+        // adjust
+        var newCenterPx = centerPx.add(dx, dy);
+        
+        // only call setCenter if not dragging or there has been a change
+        if (!options.dragging || !newCenterPx.equals(centerPx)) {
+            var newCenterLonLat = this.getLonLatFromViewPortPx(newCenterPx);
+            if (options.animate) {
+                this.panTo(newCenterLonLat);
+            } else {
+                this.setCenter(newCenterLonLat, null, options.dragging);
+            }    
+        }
+
+   },
+   
+   /** 
+     * APIMethod: panTo
+     * Allows user to pan to a new lonlat
+     * If the new lonlat is in the current extent the map will slide smoothly
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.Lonlat>}
+     */
+    panTo: function(lonlat) {
+        if (this.panMethod && this.getExtent().containsLonLat(lonlat)) {
+            if (!this.panTween) {
+                this.panTween = new OpenLayers.Tween(this.panMethod);
+            }
+            var center = this.getCenter();
+            var from = {
+                lon: center.lon,
+                lat: center.lat
+            };
+            var to = {
+                lon: lonlat.lon,
+                lat: lonlat.lat
+            };
+            this.panTween.start(from, to, 50, {
+                callbacks: {
+                    start: OpenLayers.Function.bind(function(lonlat) {
+                        this.events.triggerEvent("movestart");
+                    }, this),
+                    eachStep: OpenLayers.Function.bind(function(lonlat) {
+                        lonlat = new OpenLayers.LonLat(lonlat.lon, lonlat.lat);
+                        this.moveTo(lonlat, this.zoom, {
+                            'dragging': true,
+                            'noEvent': true
+                        });
+                    }, this),
+                    done: OpenLayers.Function.bind(function(lonlat) {
+                        lonlat = new OpenLayers.LonLat(lonlat.lon, lonlat.lat);
+                        this.moveTo(lonlat, this.zoom, {
+                            'noEvent': true
+                        });
+                        this.events.triggerEvent("moveend");
+                    }, this)
+                }
+            });
+        } else {
+            this.setCenter(lonlat);
+        }
+    },
+
+    /**
+     * APIMethod: setCenter
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * zoom - {Integer}
+     * dragging - {Boolean} Specifies whether or not to trigger 
+     *                      movestart/end events
+     * forceZoomChange - {Boolean} Specifies whether or not to trigger zoom 
+     *                             change events (needed on baseLayer change)
+     *
+     * TBD: reconsider forceZoomChange in 3.0
+     */
+    setCenter: function(lonlat, zoom, dragging, forceZoomChange) {
+        this.moveTo(lonlat, zoom, {
+            'dragging': dragging,
+            'forceZoomChange': forceZoomChange,
+            'caller': 'setCenter'
+        });
+    },
+
+    /**
+     * Method: moveTo
+     *
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * zoom - {Integer}
+     * options - {Object}
+     */
+    moveTo: function(lonlat, zoom, options) {
+        if (!options) { 
+            options = {};
+        }    
+        // dragging is false by default
+        var dragging = options.dragging;
+        // forceZoomChange is false by default
+        var forceZoomChange = options.forceZoomChange;
+        // noEvent is false by default
+        var noEvent = options.noEvent;
+
+        if (this.panTween && options.caller == "setCenter") {
+            this.panTween.stop();
+        }    
+             
+        if (!this.center && !this.isValidLonLat(lonlat)) {
+            lonlat = this.maxExtent.getCenterLonLat();
+        }
+
+        if(this.restrictedExtent != null) {
+            // In 3.0, decide if we want to change interpretation of maxExtent.
+            if(lonlat == null) { 
+                lonlat = this.getCenter(); 
+            }
+            if(zoom == null) { 
+                zoom = this.getZoom(); 
+            }
+            var resolution = this.getResolutionForZoom(zoom);
+            var extent = this.calculateBounds(lonlat, resolution); 
+            if(!this.restrictedExtent.containsBounds(extent)) {
+                var maxCenter = this.restrictedExtent.getCenterLonLat(); 
+                if(extent.getWidth() > this.restrictedExtent.getWidth()) { 
+                    lonlat = new OpenLayers.LonLat(maxCenter.lon, lonlat.lat); 
+                } else if(extent.left < this.restrictedExtent.left) {
+                    lonlat = lonlat.add(this.restrictedExtent.left -
+                                        extent.left, 0); 
+                } else if(extent.right > this.restrictedExtent.right) { 
+                    lonlat = lonlat.add(this.restrictedExtent.right -
+                                        extent.right, 0); 
+                } 
+                if(extent.getHeight() > this.restrictedExtent.getHeight()) { 
+                    lonlat = new OpenLayers.LonLat(lonlat.lon, maxCenter.lat); 
+                } else if(extent.bottom < this.restrictedExtent.bottom) { 
+                    lonlat = lonlat.add(0, this.restrictedExtent.bottom -
+                                        extent.bottom); 
+                } 
+                else if(extent.top > this.restrictedExtent.top) { 
+                    lonlat = lonlat.add(0, this.restrictedExtent.top -
+                                        extent.top); 
+                } 
+            }
+        }
+        
+        var zoomChanged = forceZoomChange || (
+                            (this.isValidZoomLevel(zoom)) && 
+                            (zoom != this.getZoom()) );
+
+        var centerChanged = (this.isValidLonLat(lonlat)) && 
+                            (!lonlat.equals(this.center));
+
+
+        // if neither center nor zoom will change, no need to do anything
+        if (zoomChanged || centerChanged || !dragging) {
+
+            if (!this.dragging && !noEvent) {
+                this.events.triggerEvent("movestart");
+            }
+
+            if (centerChanged) {
+                if ((!zoomChanged) && (this.center)) { 
+                    // if zoom hasnt changed, just slide layerContainer
+                    //  (must be done before setting this.center to new value)
+                    this.centerLayerContainer(lonlat);
+                }
+                this.center = lonlat.clone();
+            }
+
+            // (re)set the layerContainerDiv's location
+            if ((zoomChanged) || (this.layerContainerOrigin == null)) {
+                this.layerContainerOrigin = this.center.clone();
+                this.layerContainerDiv.style.left = "0px";
+                this.layerContainerDiv.style.top  = "0px";
+            }
+
+            if (zoomChanged) {
+                this.zoom = zoom;
+                this.resolution = this.getResolutionForZoom(zoom);
+                // zoom level has changed, increment viewRequestID.
+                this.viewRequestID++;
+            }    
+            
+            var bounds = this.getExtent();
+            
+            //send the move call to the baselayer and all the overlays    
+            this.baseLayer.moveTo(bounds, zoomChanged, dragging);
+            
+            bounds = this.baseLayer.getExtent();
+            
+            for (var i = 0; i < this.layers.length; i++) {
+                var layer = this.layers[i];
+                if (!layer.isBaseLayer) {
+                    var inRange = layer.calculateInRange();
+                    if (layer.inRange != inRange) {
+                        // the inRange property has changed. If the layer is
+                        // no longer in range, we turn it off right away. If
+                        // the layer is no longer out of range, the moveTo
+                        // call below will turn on the layer.
+                        layer.inRange = inRange;
+                        if (!inRange) {
+                            layer.display(false);
+                        }
+                        this.events.triggerEvent("changelayer", {
+                            layer: layer, property: "visibility"
+                        });
+                    }
+                    if (inRange && layer.visibility) {
+                        layer.moveTo(bounds, zoomChanged, dragging);
+                    }
+                }                
+            }
+            
+            if (zoomChanged) {
+                //redraw popups
+                for (var i = 0; i < this.popups.length; i++) {
+                    this.popups[i].updatePosition();
+                }
+            }    
+            
+            this.events.triggerEvent("move");
+    
+            if (zoomChanged) { this.events.triggerEvent("zoomend"); }
+        }
+
+        // even if nothing was done, we want to notify of this
+        if (!dragging && !noEvent) {
+            this.events.triggerEvent("moveend");
+        }
+        
+        // Store the map dragging state for later use
+        this.dragging = !!dragging; 
+
+    },
+
+    /** 
+     * Method: centerLayerContainer
+     * This function takes care to recenter the layerContainerDiv.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     */
+    centerLayerContainer: function (lonlat) {
+
+        var originPx = this.getViewPortPxFromLonLat(this.layerContainerOrigin);
+        var newPx = this.getViewPortPxFromLonLat(lonlat);
+
+        if ((originPx != null) && (newPx != null)) {
+            this.layerContainerDiv.style.left = Math.round(originPx.x - newPx.x) + "px";
+            this.layerContainerDiv.style.top  = Math.round(originPx.y - newPx.y) + "px";
+        }
+    },
+
+    /**
+     * Method: isValidZoomLevel
+     * 
+     * Parameters:
+     * zoomLevel - {Integer}
+     * 
+     * Returns:
+     * {Boolean} Whether or not the zoom level passed in is non-null and 
+     *           within the min/max range of zoom levels.
+     */
+    isValidZoomLevel: function(zoomLevel) {
+       return ( (zoomLevel != null) &&
+                (zoomLevel >= 0) && 
+                (zoomLevel < this.getNumZoomLevels()) );
+    },
+    
+    /**
+     * Method: isValidLonLat
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {Boolean} Whether or not the lonlat passed in is non-null and within
+     *           the maxExtent bounds
+     */
+    isValidLonLat: function(lonlat) {
+        var valid = false;
+        if (lonlat != null) {
+            var maxExtent = this.getMaxExtent();
+            valid = maxExtent.containsLonLat(lonlat);        
+        }
+        return valid;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Layer Options                        */
+  /*                                                      */
+  /*    Accessor functions to Layer Options parameters    */
+  /*                                                      */
+  /********************************************************/
+    
+    /**
+     * APIMethod: getProjection
+     * This method returns a string representing the projection. In 
+     *     the case of projection support, this will be the srsCode which
+     *     is loaded -- otherwise it will simply be the string value that
+     *     was passed to the projection at startup.
+     *
+     * FIXME: In 3.0, we will remove getProjectionObject, and instead
+     *     return a Projection object from this function. 
+     * 
+     * Returns:
+     * {String} The Projection string from the base layer or null. 
+     */
+    getProjection: function() {
+        var projection = this.getProjectionObject();
+        return projection ? projection.getCode() : null;
+    },
+    
+    /**
+     * APIMethod: getProjectionObject
+     * Returns the projection obect from the baselayer.
+     *
+     * Returns:
+     * {<OpenLayers.Projection>} The Projection of the base layer.
+     */
+    getProjectionObject: function() {
+        var projection = null;
+        if (this.baseLayer != null) {
+            projection = this.baseLayer.projection;
+        }
+        return projection;
+    },
+    
+    /**
+     * APIMethod: getMaxResolution
+     * 
+     * Returns:
+     * {String} The Map's Maximum Resolution
+     */
+    getMaxResolution: function() {
+        var maxResolution = null;
+        if (this.baseLayer != null) {
+            maxResolution = this.baseLayer.maxResolution;
+        }
+        return maxResolution;
+    },
+        
+    /**
+     * APIMethod: getMaxExtent
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>}
+     */
+    getMaxExtent: function () {
+        var maxExtent = null;
+        if (this.baseLayer != null) {
+            maxExtent = this.baseLayer.maxExtent;
+        }        
+        return maxExtent;
+    },
+    
+    /**
+     * APIMethod: getNumZoomLevels
+     * 
+     * Returns:
+     * {Integer} The total number of zoom levels that can be displayed by the 
+     *           current baseLayer.
+     */
+    getNumZoomLevels: function() {
+        var numZoomLevels = null;
+        if (this.baseLayer != null) {
+            numZoomLevels = this.baseLayer.numZoomLevels;
+        }
+        return numZoomLevels;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Baselayer Functions                  */
+  /*                                                      */
+  /*    The following functions, all publicly exposed     */
+  /*       in the API?, are all merely wrappers to the    */
+  /*       the same calls on whatever layer is set as     */
+  /*                the current base layer                */
+  /*                                                      */
+  /********************************************************/
+
+    /**
+     * APIMethod: getExtent
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object which represents the lon/lat 
+     *                       bounds of the current viewPort. 
+     *                       If no baselayer is set, returns null.
+     */
+    getExtent: function () {
+        var extent = null;
+        if (this.baseLayer != null) {
+            extent = this.baseLayer.getExtent();
+        }
+        return extent;
+    },
+
+    /**
+     * APIMethod: getResolution
+     * 
+     * Returns:
+     * {Float} The current resolution of the map. 
+     *         If no baselayer is set, returns null.
+     */
+    getResolution: function () {
+        var resolution = null;
+        if (this.baseLayer != null) {
+            resolution = this.baseLayer.getResolution();
+        }
+        return resolution;
+    },
+
+     /**
+      * APIMethod: getScale
+      * 
+      * Returns:
+      * {Float} The current scale denominator of the map. 
+      *         If no baselayer is set, returns null.
+      */
+    getScale: function () {
+        var scale = null;
+        if (this.baseLayer != null) {
+            var res = this.getResolution();
+            var units = this.baseLayer.units;
+            scale = OpenLayers.Util.getScaleFromResolution(res, units);
+        }
+        return scale;
+    },
+
+
+    /**
+     * APIMethod: getZoomForExtent
+     * 
+     * Parameters: 
+     * bounds - {<OpenLayers.Bounds>}
+     * closest - {Boolean} Find the zoom level that most closely fits the 
+     *     specified bounds. Note that this may result in a zoom that does 
+     *     not exactly contain the entire extent.
+     *     Default is false.
+     * 
+     * Returns:
+     * {Integer} A suitable zoom level for the specified bounds.
+     *           If no baselayer is set, returns null.
+     */
+    getZoomForExtent: function (bounds, closest) {
+        var zoom = null;
+        if (this.baseLayer != null) {
+            zoom = this.baseLayer.getZoomForExtent(bounds, closest);
+        }
+        return zoom;
+    },
+
+    /**
+     * APIMethod: getResolutionForZoom
+     * 
+     * Parameter:
+     * zoom - {Float}
+     * 
+     * Returns:
+     * {Float} A suitable resolution for the specified zoom.  If no baselayer
+     *     is set, returns null.
+     */
+    getResolutionForZoom: function(zoom) {
+        var resolution = null;
+        if(this.baseLayer) {
+            resolution = this.baseLayer.getResolutionForZoom(zoom);
+        }
+        return resolution;
+    },
+
+    /**
+     * APIMethod: getZoomForResolution
+     * 
+     * Parameter:
+     * resolution - {Float}
+     * closest - {Boolean} Find the zoom level that corresponds to the absolute 
+     *     closest resolution, which may result in a zoom whose corresponding
+     *     resolution is actually smaller than we would have desired (if this
+     *     is being called from a getZoomForExtent() call, then this means that
+     *     the returned zoom index might not actually contain the entire 
+     *     extent specified... but it'll be close).
+     *     Default is false.
+     * 
+     * Returns:
+     * {Integer} A suitable zoom level for the specified resolution.
+     *           If no baselayer is set, returns null.
+     */
+    getZoomForResolution: function(resolution, closest) {
+        var zoom = null;
+        if (this.baseLayer != null) {
+            zoom = this.baseLayer.getZoomForResolution(resolution, closest);
+        }
+        return zoom;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                  Zooming Functions                   */
+  /*                                                      */
+  /*    The following functions, all publicly exposed     */
+  /*       in the API, are all merely wrappers to the     */
+  /*               the setCenter() function               */
+  /*                                                      */
+  /********************************************************/
+  
+    /** 
+     * APIMethod: zoomTo
+     * Zoom to a specific zoom level
+     * 
+     * Parameters:
+     * zoom - {Integer}
+     */
+    zoomTo: function(zoom) {
+        if (this.isValidZoomLevel(zoom)) {
+            this.setCenter(null, zoom);
+        }
+    },
+    
+    /**
+     * APIMethod: zoomIn
+     * 
+     * Parameters:
+     * zoom - {int}
+     */
+    zoomIn: function() {
+        this.zoomTo(this.getZoom() + 1);
+    },
+    
+    /**
+     * APIMethod: zoomOut
+     * 
+     * Parameters:
+     * zoom - {int}
+     */
+    zoomOut: function() {
+        this.zoomTo(this.getZoom() - 1);
+    },
+
+    /**
+     * APIMethod: zoomToExtent
+     * Zoom to the passed in bounds, recenter
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    zoomToExtent: function(bounds) {
+        var center = bounds.getCenterLonLat();
+        if (this.baseLayer.wrapDateLine) {
+            var maxExtent = this.getMaxExtent();
+
+            //fix straddling bounds (in the case of a bbox that straddles the 
+            // dateline, it's left and right boundaries will appear backwards. 
+            // we fix this by allowing a right value that is greater than the
+            // max value at the dateline -- this allows us to pass a valid 
+            // bounds to calculate zoom)
+            //
+            bounds = bounds.clone();
+            while (bounds.right < bounds.left) {
+                bounds.right += maxExtent.getWidth();
+            }
+            //if the bounds was straddling (see above), then the center point 
+            // we got from it was wrong. So we take our new bounds and ask it
+            // for the center. Because our new bounds is at least partially 
+            // outside the bounds of maxExtent, the new calculated center 
+            // might also be. We don't want to pass a bad center value to 
+            // setCenter, so we have it wrap itself across the date line.
+            //
+            center = bounds.getCenterLonLat().wrapDateLine(maxExtent);
+        }
+        this.setCenter(center, this.getZoomForExtent(bounds));
+    },
+
+    /** 
+     * APIMethod: zoomToMaxExtent
+     * Zoom to the full extent and recenter.
+     */
+    zoomToMaxExtent: function() {
+        this.zoomToExtent(this.getMaxExtent());
+    },
+
+    /** 
+     * APIMethod: zoomToScale
+     * Zoom to a specified scale 
+     * 
+     * Parameters:
+     * scale - {float}
+     */
+    zoomToScale: function(scale) {
+        var res = OpenLayers.Util.getResolutionFromScale(scale, 
+                                                         this.baseLayer.units);
+        var size = this.getSize();
+        var w_deg = size.w * res;
+        var h_deg = size.h * res;
+        var center = this.getCenter();
+
+        var extent = new OpenLayers.Bounds(center.lon - w_deg / 2,
+                                           center.lat - h_deg / 2,
+                                           center.lon + w_deg / 2,
+                                           center.lat + h_deg / 2);
+        this.zoomToExtent(extent);
+    },
+    
+  /********************************************************/
+  /*                                                      */
+  /*             Translation Functions                    */
+  /*                                                      */
+  /*      The following functions translate between       */
+  /*           LonLat, LayerPx, and ViewPortPx            */
+  /*                                                      */
+  /********************************************************/
+      
+  //
+  // TRANSLATION: LonLat <-> ViewPortPx
+  //
+
+    /**
+     * Method: getLonLatFromViewPortPx
+     * 
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} An OpenLayers.LonLat which is the passed-in view 
+     *                       port <OpenLayers.Pixel>, translated into lon/lat
+     *                       by the current base layer.
+     */
+    getLonLatFromViewPortPx: function (viewPortPx) {
+        var lonlat = null; 
+        if (this.baseLayer != null) {
+            lonlat = this.baseLayer.getLonLatFromViewPortPx(viewPortPx);
+        }
+        return lonlat;
+    },
+
+    /**
+     * APIMethod: getViewPortPxFromLonLat
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} An OpenLayers.Pixel which is the passed-in 
+     *                      <OpenLayers.LonLat>, translated into view port 
+     *                      pixels by the current base layer.
+     */
+    getViewPortPxFromLonLat: function (lonlat) {
+        var px = null; 
+        if (this.baseLayer != null) {
+            px = this.baseLayer.getViewPortPxFromLonLat(lonlat);
+        }
+        return px;
+    },
+
+    
+  //
+  // CONVENIENCE TRANSLATION FUNCTIONS FOR API
+  //
+
+    /**
+     * APIMethod: getLonLatFromPixel
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} An OpenLayers.LonLat corresponding to the given
+     *                       OpenLayers.Pixel, translated into lon/lat by the 
+     *                       current base layer
+     */
+    getLonLatFromPixel: function (px) {
+        return this.getLonLatFromViewPortPx(px);
+    },
+
+    /**
+     * APIMethod: getPixelFromLonLat
+     * Returns a pixel location given a map location.  The map location is
+     *     translated to an integer pixel location (in viewport pixel
+     *     coordinates) by the current base layer.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>} A map location.
+     * 
+     * Returns: 
+     * {<OpenLayers.Pixel>} An OpenLayers.Pixel corresponding to the 
+     *     <OpenLayers.LonLat> translated into view port pixels by the current
+     *     base layer.
+     */
+    getPixelFromLonLat: function (lonlat) {
+        var px = this.getViewPortPxFromLonLat(lonlat);
+        px.x = Math.round(px.x);
+        px.y = Math.round(px.y);
+        return px;
+    },
+
+
+
+  //
+  // TRANSLATION: ViewPortPx <-> LayerPx
+  //
+
+    /**
+     * APIMethod: getViewPortPxFromLayerPx
+     * 
+     * Parameters:
+     * layerPx - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} Layer Pixel translated into ViewPort Pixel 
+     *                      coordinates
+     */
+    getViewPortPxFromLayerPx:function(layerPx) {
+        var viewPortPx = null;
+        if (layerPx != null) {
+            var dX = parseInt(this.layerContainerDiv.style.left);
+            var dY = parseInt(this.layerContainerDiv.style.top);
+            viewPortPx = layerPx.add(dX, dY);            
+        }
+        return viewPortPx;
+    },
+    
+    /**
+     * APIMethod: getLayerPxFromViewPortPx
+     * 
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} ViewPort Pixel translated into Layer Pixel 
+     *                      coordinates
+     */
+    getLayerPxFromViewPortPx:function(viewPortPx) {
+        var layerPx = null;
+        if (viewPortPx != null) {
+            var dX = -parseInt(this.layerContainerDiv.style.left);
+            var dY = -parseInt(this.layerContainerDiv.style.top);
+            layerPx = viewPortPx.add(dX, dY);
+            if (isNaN(layerPx.x) || isNaN(layerPx.y)) {
+                layerPx = null;
+            }
+        }
+        return layerPx;
+    },
+    
+  //
+  // TRANSLATION: LonLat <-> LayerPx
+  //
+
+    /**
+     * Method: getLonLatFromLayerPx
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>}
+     */
+    getLonLatFromLayerPx: function (px) {
+       //adjust for displacement of layerContainerDiv
+       px = this.getViewPortPxFromLayerPx(px);
+       return this.getLonLatFromViewPortPx(px);         
+    },
+    
+    /**
+     * APIMethod: getLayerPxFromLonLat
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>} lonlat
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} An OpenLayers.Pixel which is the passed-in 
+     *                      <OpenLayers.LonLat>, translated into layer pixels 
+     *                      by the current base layer
+     */
+    getLayerPxFromLonLat: function (lonlat) {
+       //adjust for displacement of layerContainerDiv
+       var px = this.getPixelFromLonLat(lonlat);
+       return this.getLayerPxFromViewPortPx(px);         
+    },
+
+    CLASS_NAME: "OpenLayers.Map"
+});
+
+/**
+ * Constant: TILE_WIDTH
+ * {Integer} 256 Default tile width (unless otherwise specified)
+ */
+OpenLayers.Map.TILE_WIDTH = 256;
+/**
+ * Constant: TILE_HEIGHT
+ * {Integer} 256 Default tile height (unless otherwise specified)
+ */
+OpenLayers.Map.TILE_HEIGHT = 256;
+/* ======================================================================
+    OpenLayers/Marker.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Events.js
+ * @requires OpenLayers/Icon.js
+ */
+
+/**
+ * Class: OpenLayers.Marker
+ * Instances of OpenLayers.Marker are a combination of a 
+ * <OpenLayers.LonLat> and an <OpenLayers.Icon>.  
+ *
+ * Markers are generally added to a special layer called
+ * <OpenLayers.Layer.Markers>.
+ *
+ * Example:
+ * (code)
+ * var markers = new OpenLayers.Layer.Markers( "Markers" );
+ * map.addLayer(markers);
+ *
+ * var size = new OpenLayers.Size(10,17);
+ * var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
+ * var icon = new OpenLayers.Icon('http://boston.openguides.org/markers/AQUA.png',size,offset);
+ * markers.addMarker(new OpenLayers.Marker(new OpenLayers.LonLat(0,0),icon));
+ * markers.addMarker(new OpenLayers.Marker(new OpenLayers.LonLat(0,0),icon.clone()));
+ *
+ * (end)
+ *
+ * Note that if you pass an icon into the Marker constructor, it will take
+ * that icon and use it. This means that you should not share icons between
+ * markers -- you use them once, but you should clone() for any additional
+ * markers using that same icon.
+ */
+OpenLayers.Marker = OpenLayers.Class({
+    
+    /** 
+     * Property: icon 
+     * {<OpenLayers.Icon>} The icon used by this marker.
+     */
+    icon: null,
+
+    /** 
+     * Property: lonlat 
+     * {<OpenLayers.LonLat>} location of object
+     */
+    lonlat: null,
+    
+    /** 
+     * Property: events 
+     * {<OpenLayers.Events>} the event handler.
+     */
+    events: null,
+    
+    /** 
+     * Property: map 
+     * {<OpenLayers.Map>} the map this marker is attached to
+     */
+    map: null,
+    
+    /** 
+     * Constructor: OpenLayers.Marker
+     * Paraemeters:
+     * icon - {<OpenLayers.Icon>}  the icon for this marker
+     * lonlat - {<OpenLayers.LonLat>} the position of this marker
+     */
+    initialize: function(lonlat, icon) {
+        this.lonlat = lonlat;
+        
+        var newIcon = (icon) ? icon : OpenLayers.Marker.defaultIcon();
+        if (this.icon == null) {
+            this.icon = newIcon;
+        } else {
+            this.icon.url = newIcon.url;
+            this.icon.size = newIcon.size;
+            this.icon.offset = newIcon.offset;
+            this.icon.calculateOffset = newIcon.calculateOffset;
+        }
+        this.events = new OpenLayers.Events(this, this.icon.imageDiv, null);
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Destroy the marker. You must first remove the marker from any 
+     * layer which it has been added to, or you will get buggy behavior.
+     * (This can not be done within the marker since the marker does not
+     * know which layer it is attached to.)
+     */
+    destroy: function() {
+        this.map = null;
+
+        this.events.destroy();
+        this.events = null;
+
+        if (this.icon != null) {
+            this.icon.destroy();
+            this.icon = null;
+        }
+    },
+    
+    /** 
+    * Method: draw
+    * Calls draw on the icon, and returns that output.
+    * 
+    * Parameters:
+    * px - {<OpenLayers.Pixel>}
+    * 
+    * Returns:
+    * {DOMElement} A new DOM Image with this marker's icon set at the 
+    * location passed-in
+    */
+    draw: function(px) {
+        return this.icon.draw(px);
+    }, 
+
+    /**
+    * Method: moveTo
+    * Move the marker to the new location.
+    *
+    * Parameters:
+    * px - {<OpenLayers.Pixel>} the pixel position to move to
+    */
+    moveTo: function (px) {
+        if ((px != null) && (this.icon != null)) {
+            this.icon.moveTo(px);
+        }           
+        this.lonlat = this.map.getLonLatFromLayerPx(px);
+    },
+
+    /**
+     * Method: onScreen
+     *
+     * Returns:
+     * {Boolean} Whether or not the marker is currently visible on screen.
+     */
+    onScreen:function() {
+        
+        var onScreen = false;
+        if (this.map) {
+            var screenBounds = this.map.getExtent();
+            onScreen = screenBounds.containsLonLat(this.lonlat);
+        }    
+        return onScreen;
+    },
+    
+    /**
+     * Method: inflate
+     * Englarges the markers icon by the specified ratio.
+     *
+     * Parameters:
+     * inflate - {float} the ratio to enlarge the marker by (passing 2
+     *                   will double the size).
+     */
+    inflate: function(inflate) {
+        if (this.icon) {
+            var newSize = new OpenLayers.Size(this.icon.size.w * inflate,
+                                              this.icon.size.h * inflate);
+            this.icon.setSize(newSize);
+        }        
+    },
+    
+    /** 
+     * Method: setOpacity
+     * Change the opacity of the marker by changin the opacity of 
+     *   its icon
+     * 
+     * Parameters:
+     * opacity - {float}  Specified as fraction (0.4, etc)
+     */
+    setOpacity: function(opacity) {
+        this.icon.setOpacity(opacity);
+    },
+
+    /**
+     * Method: setUrl
+     * Change URL of the Icon Image.
+     * 
+     * url - {String} 
+     */
+    setUrl: function(url) {
+        this.icon.setUrl(url);
+    },    
+
+    /** 
+     * Method: display
+     * Hide or show the icon
+     * 
+     * display - {Boolean} 
+     */
+    display: function(display) {
+        this.icon.display(display);
+    },
+
+    CLASS_NAME: "OpenLayers.Marker"
+});
+
+
+/**
+ * Function: defaultIcon
+ * Creates a default <OpenLayers.Icon>.
+ * 
+ * Returns:
+ * {<OpenLayers.Icon>} A default OpenLayers.Icon to use for a marker
+ */
+OpenLayers.Marker.defaultIcon = function() {
+    var url = OpenLayers.Util.getImagesLocation() + "marker.png";
+    var size = new OpenLayers.Size(21, 25);
+    var calculateOffset = function(size) {
+                    return new OpenLayers.Pixel(-(size.w/2), -size.h);
+                 };
+
+    return new OpenLayers.Icon(url, size, null, calculateOffset);        
+};
+    
+
+/* ======================================================================
+    OpenLayers/Tile/Image.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Tile.js
+ */
+
+/**
+ * Class: OpenLayers.Tile.Image
+ * Instances of OpenLayers.Tile.Image are used to manage the image tiles
+ * used by various layers.  Create a new image tile with the
+ * <OpenLayers.Tile.Image> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Tile>
+ */
+OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
+
+    /** 
+     * Property: url
+     * {String} The URL of the image being requested. No default. Filled in by
+     * layer.getURL() function. 
+     */
+    url: null,
+    
+    /** 
+     * Property: imgDiv
+     * {DOMElement} The div element which wraps the image.
+     */
+    imgDiv: null,
+
+    /**
+     * Property: frame
+     * {DOMElement} The image element is appended to the frame.  Any gutter on
+     * the image will be hidden behind the frame. 
+     */ 
+    frame: null, 
+
+    
+    /**
+     * Property: layerAlphaHack
+     * {Boolean} True if the png alpha hack needs to be applied on the layer's div.
+     */
+    layerAlphaHack: null,
+
+    /** TBD 3.0 - reorder the parameters to the init function to remove 
+     *             URL. the getUrl() function on the layer gets called on 
+     *             each draw(), so no need to specify it here.
+     * 
+     * Constructor: OpenLayers.Tile.Image
+     * Constructor for a new <OpenLayers.Tile.Image> instance.
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} layer that the tile will go in.
+     * position - {<OpenLayers.Pixel>}
+     * bounds - {<OpenLayers.Bounds>}
+     * url - {<String>} Deprecated. Remove me in 3.0.
+     * size - {<OpenLayers.Size>}
+     */   
+    initialize: function(layer, position, bounds, url, size) {
+        OpenLayers.Tile.prototype.initialize.apply(this, arguments);
+
+        this.url = url; //deprecated remove me
+        
+        this.frame = document.createElement('div'); 
+        this.frame.style.overflow = 'hidden'; 
+        this.frame.style.position = 'absolute'; 
+
+        this.layerAlphaHack = this.layer.alpha && OpenLayers.Util.alphaHack();
+    },
+
+    /** 
+     * APIMethod: destroy
+     * nullify references to prevent circular references and memory leaks
+     */
+    destroy: function() {
+        if (this.imgDiv != null)  {
+            if (this.layerAlphaHack) {
+                OpenLayers.Event.stopObservingElement(this.imgDiv.childNodes[0].id);                
+            } else {
+                OpenLayers.Event.stopObservingElement(this.imgDiv.id);
+            }
+            if (this.imgDiv.parentNode == this.frame) {
+                this.frame.removeChild(this.imgDiv);
+                this.imgDiv.map = null;
+            }
+        }
+        this.imgDiv = null;
+        if ((this.frame != null) && (this.frame.parentNode == this.layer.div)) { 
+            this.layer.div.removeChild(this.frame); 
+        }
+        this.frame = null; 
+        OpenLayers.Tile.prototype.destroy.apply(this, arguments);
+    },
+
+    /**
+     * Method: clone
+     *
+     * Parameters:
+     * obj - {<OpenLayers.Tile.Image>} The tile to be cloned
+     *
+     * Returns:
+     * {<OpenLayers.Tile.Image>} An exact clone of this <OpenLayers.Tile.Image>
+     */
+    clone: function (obj) {
+        if (obj == null) {
+            obj = new OpenLayers.Tile.Image(this.layer, 
+                                            this.position, 
+                                            this.bounds, 
+                                            this.url, 
+                                            this.size);        
+        } 
+        
+        //pick up properties from superclass
+        obj = OpenLayers.Tile.prototype.clone.apply(this, [obj]);
+        
+        //dont want to directly copy the image div
+        obj.imgDiv = null;
+            
+        
+        return obj;
+    },
+    
+    /**
+     * Method: draw
+     * Check that a tile should be drawn, and draw it.
+     * 
+     * Returns:
+     * {Boolean} Always returns true.
+     */
+    draw: function() {
+        if (this.layer != this.layer.map.baseLayer && this.layer.reproject) {
+            this.bounds = this.getBoundsFromBaseLayer(this.position);
+        }
+        if (!OpenLayers.Tile.prototype.draw.apply(this, arguments)) {
+            return false;    
+        }
+        
+        if (this.isLoading) {
+            //if we're already loading, send 'reload' instead of 'loadstart'.
+            this.events.triggerEvent("reload"); 
+        } else {
+            this.isLoading = true;
+            this.events.triggerEvent("loadstart");
+        }
+        
+        return this.renderTile();
+    },
+    
+    /**
+     * Method: renderTile
+     * Internal function to actually initialize the image tile,
+     *     position it correctly, and set its url.
+     */
+    renderTile: function() {
+        if (this.imgDiv == null) {
+            this.initImgDiv();
+        }
+
+        this.imgDiv.viewRequestID = this.layer.map.viewRequestID;
+        
+        this.url = this.layer.getURL(this.bounds);
+        // position the frame 
+        OpenLayers.Util.modifyDOMElement(this.frame, 
+                                         null, this.position, this.size);   
+
+        var imageSize = this.layer.getImageSize(); 
+        if (this.layerAlphaHack) {
+            OpenLayers.Util.modifyAlphaImageDiv(this.imgDiv,
+                    null, null, imageSize, this.url);
+        } else {
+            OpenLayers.Util.modifyDOMElement(this.imgDiv,
+                    null, null, imageSize) ;
+            this.imgDiv.src = this.url;
+        }
+        return true;
+    },
+
+    /** 
+     * Method: clear
+     *  Clear the tile of any bounds/position-related data so that it can 
+     *   be reused in a new location.
+     */
+    clear: function() {
+        if(this.imgDiv) {
+            this.hide();
+            if (OpenLayers.Tile.Image.useBlankTile) { 
+                this.imgDiv.src = OpenLayers.Util.getImagesLocation() + "blank.gif";
+            }    
+        }
+    },
+
+    /**
+     * Method: initImgDiv
+     * Creates the imgDiv property on the tile.
+     */
+    initImgDiv: function() {
+        
+        var offset = this.layer.imageOffset; 
+        var size = this.layer.getImageSize(); 
+     
+        if (this.layerAlphaHack) {
+            this.imgDiv = OpenLayers.Util.createAlphaImageDiv(null,
+                                                           offset,
+                                                           size,
+                                                           null,
+                                                           "relative",
+                                                           null,
+                                                           null,
+                                                           null,
+                                                           true);
+        } else {
+            this.imgDiv = OpenLayers.Util.createImage(null,
+                                                      offset,
+                                                      size,
+                                                      null,
+                                                      "relative",
+                                                      null,
+                                                      null,
+                                                      true);
+        }
+        
+        this.imgDiv.className = 'olTileImage';
+
+        /* checkImgURL used to be used to called as a work around, but it
+           ended up hiding problems instead of solving them and broke things
+           like relative URLs. See discussion on the dev list:
+           http://openlayers.org/pipermail/dev/2007-January/000205.html
+
+        OpenLayers.Event.observe( this.imgDiv, "load",
+            OpenLayers.Function.bind(this.checkImgURL, this) );
+        */
+        this.frame.style.zIndex = this.isBackBuffer ? 0 : 1;
+        this.frame.appendChild(this.imgDiv); 
+        this.layer.div.appendChild(this.frame); 
+
+        if(this.layer.opacity != null) {
+            
+            OpenLayers.Util.modifyDOMElement(this.imgDiv, null, null, null,
+                                             null, null, null, 
+                                             this.layer.opacity);
+        }
+
+        // we need this reference to check back the viewRequestID
+        this.imgDiv.map = this.layer.map;
+
+        //bind a listener to the onload of the image div so that we 
+        // can register when a tile has finished loading.
+        var onload = function() {
+            
+            //normally isLoading should always be true here but there are some 
+            // right funky conditions where loading and then reloading a tile
+            // with the same url *really*fast*. this check prevents sending 
+            // a 'loadend' if the msg has already been sent
+            //
+            if (this.isLoading) { 
+                this.isLoading = false; 
+                this.events.triggerEvent("loadend"); 
+            }
+        };
+        
+        if (this.layerAlphaHack) { 
+            OpenLayers.Event.observe(this.imgDiv.childNodes[0], 'load', 
+                                     OpenLayers.Function.bind(onload, this));    
+        } else { 
+            OpenLayers.Event.observe(this.imgDiv, 'load', 
+                                 OpenLayers.Function.bind(onload, this)); 
+        } 
+        
+
+        // Bind a listener to the onerror of the image div so that we
+        // can registere when a tile has finished loading with errors.
+        var onerror = function() {
+
+            // If we have gone through all image reload attempts, it is time
+            // to realize that we are done with this image. Since
+            // OpenLayers.Util.onImageLoadError already has taken care about
+            // the error, we can continue as if the image was loaded
+            // successfully.
+            if (this.imgDiv._attempts > OpenLayers.IMAGE_RELOAD_ATTEMPTS) {
+                onload.call(this);
+            }
+        };
+        OpenLayers.Event.observe(this.imgDiv, "error",
+                                 OpenLayers.Function.bind(onerror, this));
+    },
+
+    /**
+     * Method: checkImgURL
+     * Make sure that the image that just loaded is the one this tile is meant
+     * to display, since panning/zooming might have changed the tile's URL in
+     * the meantime. If the tile URL did change before the image loaded, set
+     * the imgDiv display to 'none', as either (a) it will be reset to visible
+     * when the new URL loads in the image, or (b) we don't want to display
+     * this tile after all because its new bounds are outside our maxExtent.
+     * 
+     * This function should no longer  be neccesary with the improvements to
+     * Grid.js in OpenLayers 2.3. The lack of a good isEquivilantURL function
+     * caused problems in 2.2, but it's possible that with the improved 
+     * isEquivilant URL function, this might be neccesary at some point.
+     * 
+     * See discussion in the thread at 
+     * http://openlayers.org/pipermail/dev/2007-January/000205.html
+     */
+    checkImgURL: function () {
+        // Sometimes our image will load after it has already been removed
+        // from the map, in which case this check is not needed.  
+        if (this.layer) {
+            var loaded = this.layerAlphaHack ? this.imgDiv.firstChild.src : this.imgDiv.src;
+            if (!OpenLayers.Util.isEquivalentUrl(loaded, this.url)) {
+                this.hide();
+            }
+        }
+    },
+    
+    /**
+     * Method: startTransition
+     * This method is invoked on tiles that are backBuffers for tiles in the
+     *     grid.  The grid tile is about to be cleared and a new tile source
+     *     loaded.  This is where the transition effect needs to be started
+     *     to provide visual continuity.
+     */
+    startTransition: function() {
+        // backBufferTile has to be valid and ready to use
+        if (!this.backBufferTile || !this.backBufferTile.imgDiv) {
+            return;
+        }
+
+        // calculate the ratio of change between the current resolution of the
+        // backBufferTile and the layer.  If several animations happen in a
+        // row, then the backBufferTile will scale itself appropriately for
+        // each request.
+        var ratio = 1;
+        if (this.backBufferTile.resolution) {
+            ratio = this.backBufferTile.resolution / this.layer.getResolution();
+        }
+        
+        // if the ratio is not the same as it was last time (i.e. we are
+        // zooming), then we need to adjust the backBuffer tile
+        if (ratio != this.lastRatio) {
+            if (this.layer.transitionEffect == 'resize') {
+                // In this case, we can just immediately resize the 
+                // backBufferTile.
+                var upperLeft = new OpenLayers.LonLat(
+                    this.backBufferTile.bounds.left, 
+                    this.backBufferTile.bounds.top
+                );
+                var size = new OpenLayers.Size(
+                    this.backBufferTile.size.w * ratio,
+                    this.backBufferTile.size.h * ratio
+                );
+
+                var px = this.layer.map.getLayerPxFromLonLat(upperLeft);
+                OpenLayers.Util.modifyDOMElement(this.backBufferTile.frame, 
+                                                 null, px, size);
+                var imageSize = this.backBufferTile.imageSize;
+                imageSize = new OpenLayers.Size(imageSize.w * ratio, 
+                                                imageSize.h * ratio);
+                var imageOffset = this.backBufferTile.imageOffset;
+                if(imageOffset) {
+                    imageOffset = new OpenLayers.Pixel(
+                        imageOffset.x * ratio, imageOffset.y * ratio
+                    );
+                }
+
+                OpenLayers.Util.modifyDOMElement(
+                    this.backBufferTile.imgDiv, null, imageOffset, imageSize
+                ) ;
+
+                this.backBufferTile.show();
+            }
+        } else {
+            // default effect is just to leave the existing tile
+            // until the new one loads if this is a singleTile and
+            // there was no change in resolution.  Otherwise we
+            // don't bother to show the backBufferTile at all
+            if (this.layer.singleTile) {
+                this.backBufferTile.show();
+            } else {
+                this.backBufferTile.hide();
+            }
+        }
+        this.lastRatio = ratio;
+
+    },
+    
+    /** 
+     * Method: show
+     * Show the tile by showing its frame.
+     */
+    show: function() {
+        this.frame.style.display = '';
+        // Force a reflow on gecko based browsers to actually show the element
+        // before continuing execution.
+        if (OpenLayers.Util.indexOf(this.layer.SUPPORTED_TRANSITIONS, 
+                this.layer.transitionEffect) != -1) {
+            if (navigator.userAgent.toLowerCase().indexOf("gecko") != -1) { 
+                this.frame.scrollLeft = this.frame.scrollLeft; 
+            } 
+        }
+    },
+    
+    /** 
+     * Method: hide
+     * Hide the tile by hiding its frame.
+     */
+    hide: function() {
+        this.frame.style.display = 'none';
+    },
+    
+    CLASS_NAME: "OpenLayers.Tile.Image"
+  }
+);
+
+OpenLayers.Tile.Image.useBlankTile = ( 
+    OpenLayers.Util.getBrowserName() == "safari" || 
+    OpenLayers.Util.getBrowserName() == "opera"); 
+/* ======================================================================
+    OpenLayers/Control/OverviewMap.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/** 
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/BaseTypes.js
+ * @requires OpenLayers/Events.js
+ */
+
+/**
+ * Class: OpenLayers.Control.OverviewMap
+ * Create an overview map to display the extent of your main map and provide
+ * additional navigation control.  Create a new overview map with the
+ * <OpenLayers.Control.OverviewMap> constructor.
+ *
+ * Inerits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.OverviewMap = OpenLayers.Class(OpenLayers.Control, {
+
+    /**
+     * Property: element
+     * {DOMElement} The DOM element that contains the overview map
+     */
+    element: null,
+    
+    /**
+     * APIProperty: ovmap
+     * {<OpenLayers.Map>} A reference to the overview map itself.
+     */
+    ovmap: null,
+
+    /**
+     * APIProperty: size
+     * {<OpenLayers.Size>} The overvew map size in pixels.  Note that this is
+     * the size of the map itself - the element that contains the map (default
+     * class name olControlOverviewMapElement) may have padding or other style
+     * attributes added via CSS.
+     */
+    size: new OpenLayers.Size(180, 90),
+
+    /**
+     * APIProperty: layers
+     * {Array(<OpenLayers.Layer>)} Ordered list of layers in the overview map.
+     * If none are sent at construction, the base layer for the main map is used.
+     */
+    layers: null,
+    
+    /**
+     * APIProperty: minRectSize
+     * {Integer} The minimum width or height (in pixels) of the extent
+     *     rectangle on the overview map.  When the extent rectangle reaches
+     *     this size, it will be replaced depending on the value of the
+     *     <minRectDisplayClass> property.  Default is 15 pixels.
+     */
+    minRectSize: 15,
+    
+    /**
+     * APIProperty: minRectDisplayClass
+     * {String} Replacement style class name for the extent rectangle when
+     *     <minRectSize> is reached.  This string will be suffixed on to the
+     *     displayClass.  Default is "RectReplacement".
+     *
+     * Example CSS declaration:
+     * (code)
+     * .olControlOverviewMapRectReplacement {
+     *     overflow: hidden;
+     *     cursor: move;
+     *     background-image: url("img/overview_replacement.gif");
+     *     background-repeat: no-repeat;
+     *     background-position: center;
+     * }
+     * (end)
+     */
+    minRectDisplayClass: "RectReplacement",
+
+    /**
+     * APIProperty: minRatio
+     * {Float} The ratio of the overview map resolution to the main map
+     * resolution at which to zoom farther out on the overview map.
+     */
+    minRatio: 8,
+
+    /**
+     * APIProperty: maxRatio
+     * {Float} The ratio of the overview map resolution to the main map
+     * resolution at which to zoom farther in on the overview map.
+     */
+    maxRatio: 32,
+
+    /**
+     * APIProperty: mapOptions
+     * {Object} An object containing any non-default properties to be sent to
+     * the overview map's map constructor.  These should include any non-default
+     * options that the main map was constructed with.
+     */
+    mapOptions: null,
+    
+    /**
+     * Property: handlers
+     * {Object}
+     */
+    handlers: null,
+
+    /**
+     * Constructor: OpenLayers.Control.OverviewMap
+     * Create a new overview map
+     *
+     * Parameters:
+     * object - {Object} Properties of this object will be set on the overview
+     * map object.  Note, to set options on the map object contained in this
+     * control, set <mapOptions> as one of the options properties.
+     */
+    initialize: function(options) {
+        this.layers = [];
+        this.handlers = {};
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Deconstruct the control
+     */
+    destroy: function() {
+        if (!this.mapDiv) { // we've already been destroyed
+            return;
+        }
+        this.handlers.click.destroy();
+
+        this.mapDiv.removeChild(this.extentRectangle);
+        this.extentRectangle = null;
+        this.rectEvents.destroy();
+        this.rectEvents = null;
+
+        this.ovmap.destroy();
+        this.ovmap = null;
+        
+        this.element.removeChild(this.mapDiv);
+        this.mapDiv = null;
+
+        this.div.removeChild(this.element);
+        this.element = null;
+
+        if (this.maximizeDiv) {
+            OpenLayers.Event.stopObservingElement(this.maximizeDiv);
+            this.div.removeChild(this.maximizeDiv);
+            this.maximizeDiv = null;
+        }
+        
+        if (this.minimizeDiv) {
+            OpenLayers.Event.stopObservingElement(this.minimizeDiv);
+            this.div.removeChild(this.minimizeDiv);
+            this.minimizeDiv = null;
+        }
+        
+        this.map.events.un({
+            "moveend": this.update,
+            "changebaselayer": this.baseLayerDraw,
+            scope: this
+        });
+
+        OpenLayers.Control.prototype.destroy.apply(this, arguments);    
+    },
+
+    /**
+     * Method: draw
+     * Render the control in the browser.
+     */    
+    draw: function() {
+        OpenLayers.Control.prototype.draw.apply(this, arguments);
+        if(!(this.layers.length > 0)) {
+            if (this.map.baseLayer) {
+                var layer = this.map.baseLayer.clone();
+                this.layers = [layer];
+            } else {
+                this.map.events.register("changebaselayer", this, this.baseLayerDraw);
+                return this.div;
+            }
+        }
+
+        // create overview map DOM elements
+        this.element = document.createElement('div');
+        this.element.className = this.displayClass + 'Element';
+        this.element.style.display = 'none';
+
+        this.mapDiv = document.createElement('div');
+        this.mapDiv.style.width = this.size.w + 'px';
+        this.mapDiv.style.height = this.size.h + 'px';
+        this.mapDiv.style.position = 'relative';
+        this.mapDiv.style.overflow = 'hidden';
+        this.mapDiv.id = OpenLayers.Util.createUniqueID('overviewMap');
+        
+        this.extentRectangle = document.createElement('div');
+        this.extentRectangle.style.position = 'absolute';
+        this.extentRectangle.style.zIndex = 1000;  //HACK
+        this.extentRectangle.className = this.displayClass+'ExtentRectangle';
+        this.mapDiv.appendChild(this.extentRectangle);
+
+        this.element.appendChild(this.mapDiv);  
+
+        this.div.appendChild(this.element);
+
+        // Optionally add min/max buttons if the control will go in the
+        // map viewport.
+        if(!this.outsideViewport) {
+            this.div.className += " " + this.displayClass + 'Container';
+            var imgLocation = OpenLayers.Util.getImagesLocation();
+            // maximize button div
+            var img = imgLocation + 'layer-switcher-maximize.png';
+            this.maximizeDiv = OpenLayers.Util.createAlphaImageDiv(
+                                        this.displayClass + 'MaximizeButton', 
+                                        null, 
+                                        new OpenLayers.Size(18,18), 
+                                        img, 
+                                        'absolute');
+            this.maximizeDiv.style.display = 'none';
+            this.maximizeDiv.className = this.displayClass + 'MaximizeButton';
+            OpenLayers.Event.observe(this.maximizeDiv, 'click', 
+                OpenLayers.Function.bindAsEventListener(this.maximizeControl,
+                                                        this)
+            );
+            this.div.appendChild(this.maximizeDiv);
+    
+            // minimize button div
+            var img = imgLocation + 'layer-switcher-minimize.png';
+            this.minimizeDiv = OpenLayers.Util.createAlphaImageDiv(
+                                        'OpenLayers_Control_minimizeDiv', 
+                                        null, 
+                                        new OpenLayers.Size(18,18), 
+                                        img, 
+                                        'absolute');
+            this.minimizeDiv.style.display = 'none';
+            this.minimizeDiv.className = this.displayClass + 'MinimizeButton';
+            OpenLayers.Event.observe(this.minimizeDiv, 'click', 
+                OpenLayers.Function.bindAsEventListener(this.minimizeControl,
+                                                        this)
+            );
+            this.div.appendChild(this.minimizeDiv);
+            
+            var eventsToStop = ['dblclick','mousedown'];
+            
+            for (var i = 0; i < eventsToStop.length; i++) {
+
+                OpenLayers.Event.observe(this.maximizeDiv, 
+                                         eventsToStop[i], 
+                                         OpenLayers.Event.stop);
+
+                OpenLayers.Event.observe(this.minimizeDiv,
+                                         eventsToStop[i], 
+                                         OpenLayers.Event.stop);
+            }
+            
+            this.minimizeControl();
+        } else {
+            // show the overview map
+            this.element.style.display = '';
+        }
+        if(this.map.getExtent()) {
+            this.update();
+        }
+        
+        this.map.events.register('moveend', this, this.update);
+
+        return this.div;
+    },
+    
+    /**
+     * Method: baseLayerDraw
+     * Draw the base layer - called if unable to complete in the initial draw
+     */
+    baseLayerDraw: function() {
+        this.draw();
+        this.map.events.unregister("changebaselayer", this, this.baseLayerDraw);
+    },
+
+    /**
+     * Method: rectDrag
+     * Handle extent rectangle drag
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} The pixel location of the drag.
+     */
+    rectDrag: function(px) {
+        var deltaX = this.handlers.drag.last.x - px.x;
+        var deltaY = this.handlers.drag.last.y - px.y;
+        if(deltaX != 0 || deltaY != 0) {
+            var rectTop = this.rectPxBounds.top;
+            var rectLeft = this.rectPxBounds.left;
+            var rectHeight = Math.abs(this.rectPxBounds.getHeight());
+            var rectWidth = this.rectPxBounds.getWidth();
+            // don't allow dragging off of parent element
+            var newTop = Math.max(0, (rectTop - deltaY));
+            newTop = Math.min(newTop,
+                              this.ovmap.size.h - this.hComp - rectHeight);
+            var newLeft = Math.max(0, (rectLeft - deltaX));
+            newLeft = Math.min(newLeft,
+                               this.ovmap.size.w - this.wComp - rectWidth);
+            this.setRectPxBounds(new OpenLayers.Bounds(newLeft,
+                                                       newTop + rectHeight,
+                                                       newLeft + rectWidth,
+                                                       newTop));
+        }
+    },
+    
+    /**
+     * Method: mapDivClick
+     * Handle browser events
+     *
+     * Parameters:
+     * evt - {<OpenLayers.Event>} evt
+     */
+    mapDivClick: function(evt) {
+        var pxCenter = this.rectPxBounds.getCenterPixel();
+        var deltaX = evt.xy.x - pxCenter.x;
+        var deltaY = evt.xy.y - pxCenter.y;
+        var top = this.rectPxBounds.top;
+        var left = this.rectPxBounds.left;
+        var height = Math.abs(this.rectPxBounds.getHeight());
+        var width = this.rectPxBounds.getWidth();
+        var newTop = Math.max(0, (top + deltaY));
+        newTop = Math.min(newTop, this.ovmap.size.h - height);
+        var newLeft = Math.max(0, (left + deltaX));
+        newLeft = Math.min(newLeft, this.ovmap.size.w - width);
+        this.setRectPxBounds(new OpenLayers.Bounds(newLeft,
+                                                   newTop + height,
+                                                   newLeft + width,
+                                                   newTop));
+        this.updateMapToRect();
+    },
+
+    /**
+     * Method: maximizeControl
+     * Unhide the control.  Called when the control is in the map viewport.
+     *
+     * Parameters:
+     * e - {<OpenLayers.Event>}
+     */
+    maximizeControl: function(e) {
+        this.element.style.display = '';
+        this.showToggle(false);
+        if (e != null) {
+            OpenLayers.Event.stop(e);                                            
+        }
+    },
+
+    /**
+     * Method: minimizeControl
+     * Hide all the contents of the control, shrink the size, 
+     * add the maximize icon
+     * 
+     * Parameters:
+     * e - {<OpenLayers.Event>}
+     */
+    minimizeControl: function(e) {
+        this.element.style.display = 'none';
+        this.showToggle(true);
+        if (e != null) {
+            OpenLayers.Event.stop(e);                                            
+        }
+    },
+
+    /**
+     * Method: showToggle
+     * Hide/Show the toggle depending on whether the control is minimized
+     *
+     * Parameters:
+     * minimize - {Boolean} 
+     */
+    showToggle: function(minimize) {
+        this.maximizeDiv.style.display = minimize ? '' : 'none';
+        this.minimizeDiv.style.display = minimize ? 'none' : '';
+    },
+
+    /**
+     * Method: update
+     * Update the overview map after layers move.
+     */
+    update: function() {
+        if(this.ovmap == null) {
+            this.createMap();
+        }
+        
+        if(!this.isSuitableOverview()) {
+            this.updateOverview();
+        }
+        
+        // update extent rectangle
+        this.updateRectToMap();
+    },
+    
+    /**
+     * Method: isSuitableOverview
+     * Determines if the overview map is suitable given the extent and
+     * resolution of the main map.
+     */
+    isSuitableOverview: function() {
+        var mapExtent = this.map.getExtent();
+        var maxExtent = this.map.maxExtent;
+        var testExtent = new OpenLayers.Bounds(
+                                Math.max(mapExtent.left, maxExtent.left),
+                                Math.max(mapExtent.bottom, maxExtent.bottom),
+                                Math.min(mapExtent.right, maxExtent.right),
+                                Math.min(mapExtent.top, maxExtent.top));        
+        var resRatio = this.ovmap.getResolution() / this.map.getResolution();
+        return ((resRatio > this.minRatio) &&
+                (resRatio <= this.maxRatio) &&
+                (this.ovmap.getExtent().containsBounds(testExtent)));
+    },
+    
+    /**
+     * Method updateOverview
+     * Called by <update> if <isSuitableOverview> returns true
+     */
+    updateOverview: function() {
+        var mapRes = this.map.getResolution();
+        var targetRes = this.ovmap.getResolution();
+        var resRatio = targetRes / mapRes;
+        if(resRatio > this.maxRatio) {
+            // zoom in overview map
+            targetRes = this.minRatio * mapRes;            
+        } else if(resRatio <= this.minRatio) {
+            // zoom out overview map
+            targetRes = this.maxRatio * mapRes;
+        }
+        this.ovmap.setCenter(this.map.center,
+                            this.ovmap.getZoomForResolution(targetRes));
+        this.updateRectToMap();
+    },
+    
+    /**
+     * Method: createMap
+     * Construct the map that this control contains
+     */
+    createMap: function() {
+        // create the overview map
+        var options = OpenLayers.Util.extend(
+                        {controls: [], maxResolution: 'auto', 
+                         fallThrough: false}, this.mapOptions);
+        this.ovmap = new OpenLayers.Map(this.mapDiv, options);
+        
+        // prevent ovmap from being destroyed when the page unloads, because
+        // the OverviewMap control has to do this (and does it).
+        OpenLayers.Event.stopObserving(window, 'unload', this.ovmap.unloadDestroy);
+        
+        this.ovmap.addLayers(this.layers);
+        this.ovmap.zoomToMaxExtent();
+        // check extent rectangle border width
+        this.wComp = parseInt(OpenLayers.Element.getStyle(this.extentRectangle,
+                                               'border-left-width')) +
+                     parseInt(OpenLayers.Element.getStyle(this.extentRectangle,
+                                               'border-right-width'));
+        this.wComp = (this.wComp) ? this.wComp : 2;
+        this.hComp = parseInt(OpenLayers.Element.getStyle(this.extentRectangle,
+                                               'border-top-width')) +
+                     parseInt(OpenLayers.Element.getStyle(this.extentRectangle,
+                                               'border-bottom-width'));
+        this.hComp = (this.hComp) ? this.hComp : 2;
+
+        this.handlers.drag = new OpenLayers.Handler.Drag(
+            this, {move: this.rectDrag, done: this.updateMapToRect},
+            {map: this.ovmap}
+        );
+        this.handlers.click = new OpenLayers.Handler.Click(
+            this, {
+                "click": this.mapDivClick
+            },{
+                "single": true, "double": false,
+                "stopSingle": true, "stopDouble": true,
+                "pixelTolerance": 1,
+                map: this.ovmap
+            }
+        );
+        this.handlers.click.activate();
+        
+        this.rectEvents = new OpenLayers.Events(this, this.extentRectangle,
+                                                null, true);
+        this.rectEvents.register("mouseover", this, function(e) {
+            if(!this.handlers.drag.active && !this.map.dragging) {
+                this.handlers.drag.activate();
+            }
+        });
+        this.rectEvents.register("mouseout", this, function(e) {
+            if(!this.handlers.drag.dragging) {
+                this.handlers.drag.deactivate();
+            }
+        });
+
+    },
+        
+    /**
+     * Method: updateRectToMap
+     * Updates the extent rectangle position and size to match the map extent
+     */
+    updateRectToMap: function() {
+        // The base layer for overview map needs to be in the same projection
+        // as the base layer for the main map.  This should be made more robust.
+        if(this.map.units != 'degrees') {
+            if(this.ovmap.getProjection() && (this.map.getProjection() != this.ovmap.getProjection())) {
+                alert(OpenLayers.i18n("sameProjection"));
+            }
+        }
+        var pxBounds = this.getRectBoundsFromMapBounds(this.map.getExtent());
+        if (pxBounds) {
+            this.setRectPxBounds(pxBounds);
+        }
+    },
+    
+    /**
+     * Method: updateMapToRect
+     * Updates the map extent to match the extent rectangle position and size
+     */
+    updateMapToRect: function() {
+        var lonLatBounds = this.getMapBoundsFromRectBounds(this.rectPxBounds);
+        this.map.panTo(lonLatBounds.getCenterLonLat());
+    },
+
+    /**
+     * Method: setRectPxBounds
+     * Set extent rectangle pixel bounds.
+     *
+     * Parameters:
+     * pxBounds - {<OpenLayers.Bounds>}
+     */
+    setRectPxBounds: function(pxBounds) {
+        var top = Math.max(pxBounds.top, 0);
+        var left = Math.max(pxBounds.left, 0);
+        var bottom = Math.min(pxBounds.top + Math.abs(pxBounds.getHeight()),
+                              this.ovmap.size.h - this.hComp);
+        var right = Math.min(pxBounds.left + pxBounds.getWidth(),
+                             this.ovmap.size.w - this.wComp);
+        var width = Math.max(right - left, 0);
+        var height = Math.max(bottom - top, 0);
+        if(width < this.minRectSize || height < this.minRectSize) {
+            this.extentRectangle.className = this.displayClass +
+                                             this.minRectDisplayClass;
+            var rLeft = left + (width / 2) - (this.minRectSize / 2);
+            var rTop = top + (height / 2) - (this.minRectSize / 2);
+            this.extentRectangle.style.top = Math.round(rTop) + 'px';
+            this.extentRectangle.style.left = Math.round(rLeft) + 'px';
+            this.extentRectangle.style.height = this.minRectSize + 'px';
+            this.extentRectangle.style.width = this.minRectSize + 'px';
+        } else {
+            this.extentRectangle.className = this.displayClass +
+                                             'ExtentRectangle';
+            this.extentRectangle.style.top = Math.round(top) + 'px';
+            this.extentRectangle.style.left = Math.round(left) + 'px';
+            this.extentRectangle.style.height = Math.round(height) + 'px';
+            this.extentRectangle.style.width = Math.round(width) + 'px';
+        }
+        this.rectPxBounds = new OpenLayers.Bounds(
+            Math.round(left), Math.round(bottom),
+            Math.round(right), Math.round(top)
+        );
+    },
+
+    /**
+     * Method: getRectBoundsFromMapBounds
+     * Get the rect bounds from the map bounds.
+     *
+     * Parameters:
+     * lonLatBounds - {<OpenLayers.Bounds>}
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>}A bounds which is the passed-in map lon/lat extent
+     * translated into pixel bounds for the overview map
+     */
+    getRectBoundsFromMapBounds: function(lonLatBounds) {
+        var leftBottomLonLat = new OpenLayers.LonLat(lonLatBounds.left,
+                                                     lonLatBounds.bottom);
+        var rightTopLonLat = new OpenLayers.LonLat(lonLatBounds.right,
+                                                   lonLatBounds.top);
+        var leftBottomPx = this.getOverviewPxFromLonLat(leftBottomLonLat);
+        var rightTopPx = this.getOverviewPxFromLonLat(rightTopLonLat);
+        var bounds = null;
+        if (leftBottomPx && rightTopPx) {
+            bounds = new OpenLayers.Bounds(leftBottomPx.x, leftBottomPx.y,
+                                           rightTopPx.x, rightTopPx.y);
+        }
+        return bounds;
+    },
+
+    /**
+     * Method: getMapBoundsFromRectBounds
+     * Get the map bounds from the rect bounds.
+     *
+     * Parameters:
+     * pxBounds - {<OpenLayers.Bounds>}
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} Bounds which is the passed-in overview rect bounds
+     * translated into lon/lat bounds for the overview map
+     */
+    getMapBoundsFromRectBounds: function(pxBounds) {
+        var leftBottomPx = new OpenLayers.Pixel(pxBounds.left,
+                                                pxBounds.bottom);
+        var rightTopPx = new OpenLayers.Pixel(pxBounds.right,
+                                              pxBounds.top);
+        var leftBottomLonLat = this.getLonLatFromOverviewPx(leftBottomPx);
+        var rightTopLonLat = this.getLonLatFromOverviewPx(rightTopPx);
+        return new OpenLayers.Bounds(leftBottomLonLat.lon, leftBottomLonLat.lat,
+                                     rightTopLonLat.lon, rightTopLonLat.lat);
+    },
+
+    /**
+     * Method: getLonLatFromOverviewPx
+     * Get a map location from a pixel location
+     *
+     * Parameters:
+     * overviewMapPx - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} Location which is the passed-in overview map
+     * OpenLayers.Pixel, translated into lon/lat by the overview map
+     */
+    getLonLatFromOverviewPx: function(overviewMapPx) {
+        var size = this.ovmap.size;
+        var res  = this.ovmap.getResolution();
+        var center = this.ovmap.getExtent().getCenterLonLat();
+    
+        var delta_x = overviewMapPx.x - (size.w / 2);
+        var delta_y = overviewMapPx.y - (size.h / 2);
+        
+        return new OpenLayers.LonLat(center.lon + delta_x * res ,
+                                     center.lat - delta_y * res); 
+    },
+
+    /**
+     * Method: getOverviewPxFromLonLat
+     * Get a pixel location from a map location
+     *
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} Location which is the passed-in OpenLayers.LonLat, 
+     * translated into overview map pixels
+     */
+    getOverviewPxFromLonLat: function(lonlat) {
+        var res  = this.ovmap.getResolution();
+        var extent = this.ovmap.getExtent();
+        var px = null;
+        if (extent) {
+            px = new OpenLayers.Pixel(
+                        Math.round(1/res * (lonlat.lon - extent.left)),
+                        Math.round(1/res * (extent.top - lonlat.lat)));
+        } 
+        return px;
+    },
+
+    CLASS_NAME: 'OpenLayers.Control.OverviewMap'
+});
+/* ======================================================================
+    OpenLayers/Handler/Click.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the clear BSD license.
+ * See http://svn.openlayers.org/trunk/openlayers/license.txt 
+ * for the full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Click
+ * A handler for mouse clicks.  The intention of this handler is to give
+ *     controls more flexibility with handling clicks.  Browsers trigger
+ *     click events twice for a double-click.  In addition, the mousedown,
+ *     mousemove, mouseup sequence fires a click event.  With this handler,
+ *     controls can decide whether to ignore clicks associated with a double
+ *     click.  By setting a <pixelTolerance>, controls can also ignore clicks
+ *     that include a drag.  Create a new instance with the
+ *     <OpenLayers.Handler.Click> constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Handler> 
+ */
+OpenLayers.Handler.Click = OpenLayers.Class(OpenLayers.Handler, {
+
+    /**
+     * APIProperty: delay
+     * {Number} Number of milliseconds between clicks before the event is
+     *     considered a double-click.
+     */
+    delay: 300,
+    
+    /**
+     * APIProperty: single
+     * {Boolean} Handle single clicks.  Default is true.  If false, clicks
+     * will not be reported.  If true, single-clicks will be reported.
+     */
+    single: true,
+    
+    /**
+     * APIProperty: double
+     * {Boolean} Handle double-clicks.  Default is false.
+     */
+    'double': false,
+    
+    /**
+     * APIProperty: pixelTolerance
+     * {Number} Maximum number of pixels between mouseup and mousedown for an
+     *     event to be considered a click.  Default is 0.  If set to an
+     *     integer value, clicks with a drag greater than the value will be
+     *     ignored.  This property can only be set when the handler is
+     *     constructed.
+     */
+    pixelTolerance: 0,
+    
+    /**
+     * APIProperty: stopSingle
+     * {Boolean} Stop other listeners from being notified of clicks.  Default
+     *     is false.  If true, any click listeners registered before this one
+     *     will not be notified of *any* click event (associated with double
+     *     or single clicks).
+     */
+    stopSingle: false,
+    
+    /**
+     * APIProperty: stopDouble
+     * {Boolean} Stop other listeners from being notified of double-clicks.
+     *     Default is false.  If true, any click listeners registered before
+     *     this one will not be notified of *any* double-click events.
+     * 
+     * The one caveat with stopDouble is that given a map with two click
+     *     handlers, one with stopDouble true and the other with stopSingle
+     *     true, the stopSingle handler should be activated last to get
+     *     uniform cross-browser performance.  Since IE triggers one click
+     *     with a dblclick and FF triggers two, if a stopSingle handler is
+     *     activated first, all it gets in IE is a single click when the
+     *     second handler stops propagation on the dblclick.
+     */
+    stopDouble: false,
+
+    /**
+     * Property: timerId
+     * {Number} The id of the timeout waiting to clear the <delayedCall>.
+     */
+    timerId: null,
+    
+    /**
+     * Property: down
+     * {<OpenLayers.Pixel>} The pixel location of the last mousedown.
+     */
+    down: null,
+    
+    /**
+     * Constructor: OpenLayers.Handler.Click
+     * Create a new click handler.
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that is making use of
+     *     this handler.  If a handler is being used without a control, the
+     *     handler's setMap method must be overridden to deal properly with
+     *     the map.
+     * callbacks - {Object} An object with keys corresponding to callbacks
+     *     that will be called by the handler. The callbacks should
+     *     expect to recieve a single argument, the click event.
+     *     Callbacks for 'click' and 'dblclick' are supported.
+     * options - {Object} Optional object whose properties will be set on the
+     *     handler.
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+        // optionally register for mouseup and mousedown
+        if(this.pixelTolerance != null) {
+            this.mousedown = function(evt) {
+                this.down = evt.xy;
+                return true;
+            };
+        }
+    },
+    
+    /**
+     * Method: mousedown
+     * Handle mousedown.  Only registered as a listener if pixelTolerance is
+     *     a non-zero value at construction.
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    mousedown: null,
+    
+    /**
+     * Method: dblclick
+     * Handle dblclick.  For a dblclick, we get two clicks in some browsers
+     *     (FF) and one in others (IE).  So we need to always register for
+     *     dblclick to properly handle single clicks.
+     *     
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    dblclick: function(evt) {
+        if(this.passesTolerance(evt)) {
+            if(this["double"]) {
+                this.callback('dblclick', [evt]);
+            }
+            this.clearTimer();
+        }
+        return !this.stopDouble;
+    },
+    
+    /**
+     * Method: click
+     * Handle click.
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    click: function(evt) {
+        if(this.passesTolerance(evt)) {
+            if(this.timerId != null) {
+                // already received a click
+                this.clearTimer();
+            } else {
+                // set the timer, send evt only if single is true
+                //use a clone of the event object because it will no longer 
+                //be a valid event object in IE in the timer callback
+                var clickEvent = this.single ?
+                    OpenLayers.Util.extend({}, evt) : null;
+                this.timerId = window.setTimeout(
+                    OpenLayers.Function.bind(this.delayedCall, this, clickEvent),
+                    this.delay
+                );
+            }
+        }
+        return !this.stopSingle;
+    },
+    
+    /**
+     * Method: passesTolerance
+     * Determine whether the event is within the optional pixel tolerance.  Note
+     *     that the pixel tolerance check only works if mousedown events get to
+     *     the listeners registered here.  If they are stopped by other elements,
+     *     the <pixelTolerance> will have no effect here (this method will always
+     *     return true).
+     *
+     * Returns:
+     * {Boolean} The click is within the pixel tolerance (if specified).
+     */
+    passesTolerance: function(evt) {
+        var passes = true;
+        if(this.pixelTolerance != null && this.down) {
+            var dpx = Math.sqrt(
+                Math.pow(this.down.x - evt.xy.x, 2) +
+                Math.pow(this.down.y - evt.xy.y, 2)
+            );
+            if(dpx > this.pixelTolerance) {
+                passes = false;
+            }
+        }
+        return passes;
+    },
+
+    /**
+     * Method: clearTimer
+     * Clear the timer and set <timerId> to null.
+     */
+    clearTimer: function() {
+        if(this.timerId != null) {
+            window.clearTimeout(this.timerId);
+            this.timerId = null;
+        }
+    },
+    
+    /**
+     * Method: delayedCall
+     * Sets <timerId> to null.  And optionally triggers the click callback if
+     *     evt is set.
+     */
+    delayedCall: function(evt) {
+        this.timerId = null;
+        if(evt) {
+            this.callback('click', [evt]);
+        }
+    },
+
+    /**
+     * APIMethod: deactivate
+     * Deactivate the handler.
+     *
+     * Returns:
+     * {Boolean} The handler was successfully deactivated.
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if(OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.clearTimer();
+            this.down = null;
+            deactivated = true;
+        }
+        return deactivated;
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Click"
+});
+/* ======================================================================
+    OpenLayers/Handler/Drag.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Drag
+ * The drag handler is used to deal with sequences of browser events related
+ *     to dragging.  The handler is used by controls that want to know when
+ *     a drag sequence begins, when a drag is happening, and when it has
+ *     finished.
+ *
+ * Controls that use the drag handler typically construct it with callbacks
+ *     for 'down', 'move', and 'done'.  Callbacks for these keys are called
+ *     when the drag begins, with each move, and when the drag is done.  In
+ *     addition, controls can have callbacks keyed to 'up' and 'out' if they
+ *     care to differentiate between the types of events that correspond with
+ *     the end of a drag sequence.  If no drag actually occurs (no mouse move)
+ *     the 'down' and 'up' callbacks will be called, but not the 'done'
+ *     callback.
+ *
+ * Create a new drag handler with the <OpenLayers.Handler.Drag> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.Drag = OpenLayers.Class(OpenLayers.Handler, {
+  
+    /** 
+     * Property: started
+     * {Boolean} When a mousedown event is received, we want to record it, but
+     *     not set 'dragging' until the mouse moves after starting. 
+     */
+    started: false,
+    
+    /**
+     * Property: stopDown
+     * {Boolean} Stop propagation of mousedown events from getting to listeners
+     *     on the same element.  Default is true.
+     */
+    stopDown: true,
+
+    /** 
+     * Property: dragging 
+     * {Boolean} 
+     */
+    dragging: false,
+
+    /** 
+     * Property: last
+     * {<OpenLayers.Pixel>} The last pixel location of the drag.
+     */
+    last: null,
+
+    /** 
+     * Property: start
+     * {<OpenLayers.Pixel>} The first pixel location of the drag.
+     */
+    start: null,
+
+    /**
+     * Property: oldOnselectstart
+     * {Function}
+     */
+    oldOnselectstart: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Drag
+     * Returns OpenLayers.Handler.Drag
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that is making use of
+     *     this handler.  If a handler is being used without a control, the
+     *     handlers setMap method must be overridden to deal properly with
+     *     the map.
+     * callbacks - {Object} An object containing a single function to be
+     *     called when the drag operation is finished. The callback should
+     *     expect to recieve a single argument, the pixel location of the event.
+     *     Callbacks for 'move' and 'done' are supported. You can also speficy
+     *     callbacks for 'down', 'up', and 'out' to respond to those events.
+     * options - {Object} 
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+    },
+    
+    /**
+     * The four methods below (down, move, up, and out) are used by subclasses
+     *     to do their own processing related to these mouse events.
+     */
+    
+    /**
+     * Method: down
+     * This method is called during the handling of the mouse down event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse down event
+     */
+    down: function(evt) {
+    },
+    
+    /**
+     * Method: move
+     * This method is called during the handling of the mouse move event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse move event
+     *
+     */
+    move: function(evt) {
+    },
+
+    /**
+     * Method: up
+     * This method is called during the handling of the mouse up event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse up event
+     */
+    up: function(evt) {
+    },
+
+    /**
+     * Method: out
+     * This method is called during the handling of the mouse out event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse out event
+     */
+    out: function(evt) {
+    },
+
+    /**
+     * The methods below are part of the magic of event handling.  Because
+     *     they are named like browser events, they are registered as listeners
+     *     for the events they represent.
+     */
+
+    /**
+     * Method: mousedown
+     * Handle mousedown events
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mousedown: function (evt) {
+        var propagate = true;
+        this.dragging = false;
+        if (this.checkModifiers(evt) && OpenLayers.Event.isLeftClick(evt)) {
+            this.started = true;
+            this.start = evt.xy;
+            this.last = evt.xy;
+            // TBD replace with CSS classes
+            this.map.div.style.cursor = "move";
+            this.down(evt);
+            this.callback("down", [evt.xy]);
+            OpenLayers.Event.stop(evt);
+            
+            if(!this.oldOnselectstart) {
+                this.oldOnselectstart = (document.onselectstart) ? document.onselectstart : function() { return true; };
+                document.onselectstart = function() {return false;};
+            }
+            
+            propagate = !this.stopDown;
+        } else {
+            this.started = false;
+            this.start = null;
+            this.last = null;
+        }
+        return propagate;
+    },
+
+    /**
+     * Method: mousemove
+     * Handle mousemove events
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mousemove: function (evt) {
+        if (this.started) {
+            if(evt.xy.x != this.last.x || evt.xy.y != this.last.y) {
+                this.dragging = true;
+                this.move(evt);
+                this.callback("move", [evt.xy]);
+                if(!this.oldOnselectstart) {
+                    this.oldOnselectstart = document.onselectstart;
+                    document.onselectstart = function() {return false;};
+                }
+                this.last = evt.xy;
+            }
+        }
+        return true;
+    },
+
+    /**
+     * Method: mouseup
+     * Handle mouseup events
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mouseup: function (evt) {
+        if (this.started) {
+            var dragged = (this.start != this.last);
+            this.started = false;
+            this.dragging = false;
+            // TBD replace with CSS classes
+            this.map.div.style.cursor = "";
+            this.up(evt);
+            this.callback("up", [evt.xy]);
+            if(dragged) {
+                this.callback("done", [evt.xy]);
+            }
+            document.onselectstart = this.oldOnselectstart;
+        }
+        return true;
+    },
+
+    /**
+     * Method: mouseout
+     * Handle mouseout events
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mouseout: function (evt) {
+        if (this.started && OpenLayers.Util.mouseLeft(evt, this.map.div)) {
+            var dragged = (this.start != this.last);
+            this.started = false; 
+            this.dragging = false;
+            // TBD replace with CSS classes
+            this.map.div.style.cursor = "";
+            this.out(evt);
+            this.callback("out", []);
+            if(dragged) {
+                this.callback("done", [evt.xy]);
+            }
+            if(document.onselectstart) {
+                document.onselectstart = this.oldOnselectstart;
+            }
+        }
+        return true;
+    },
+
+    /**
+     * Method: click
+     * The drag handler captures the click event.  If something else registers
+     *     for clicks on the same element, its listener will not be called 
+     *     after a drag.
+     * 
+     * Parameters: 
+     * evt - {Event} 
+     * 
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    click: function (evt) {
+        // let the click event propagate only if the mouse moved
+        return (this.start == this.last);
+    },
+
+    /**
+     * Method: activate
+     * Activate the handler.
+     * 
+     * Returns:
+     * {Boolean} The handler was successfully activated.
+     */
+    activate: function() {
+        var activated = false;
+        if(OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            this.dragging = false;
+            activated = true;
+        }
+        return activated;
+    },
+
+    /**
+     * Method: deactivate 
+     * Deactivate the handler.
+     * 
+     * Returns:
+     * {Boolean} The handler was successfully deactivated.
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if(OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.started = false;
+            this.dragging = false;
+            this.start = null;
+            this.last = null;
+            deactivated = true;
+        }
+        return deactivated;
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Drag"
+});
+/* ======================================================================
+    OpenLayers/Handler/MouseWheel.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.MouseWheel
+ * Handler for wheel up/down events.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.MouseWheel = OpenLayers.Class(OpenLayers.Handler, {
+    /** 
+     * Property: wheelListener 
+     * {function} 
+     */
+    wheelListener: null,
+
+    /** 
+     * Property: mousePosition
+     * {<OpenLayers.Pixel>} mousePosition is necessary because
+     * evt.clientX/Y is buggy in Moz on wheel events, so we cache and use the
+     * value from the last mousemove.
+     */
+    mousePosition: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.MouseWheel
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} 
+     * callbacks - {Object} An object containing a single function to be
+     *                          called when the drag operation is finished.
+     *                          The callback should expect to recieve a single
+     *                          argument, the point geometry.
+     * options - {Object} 
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+        this.wheelListener = OpenLayers.Function.bindAsEventListener(
+            this.onWheelEvent, this
+        );
+    },
+
+    /**
+     * Method: destroy
+     */    
+    destroy: function() {
+        OpenLayers.Handler.prototype.destroy.apply(this, arguments);
+        this.wheelListener = null;
+    },
+
+    /**
+     *  Mouse ScrollWheel code thanks to http://adomas.org/javascript-mouse-wheel/
+     */
+
+    /** 
+     * Method: onWheelEvent
+     * Catch the wheel event and handle it xbrowserly
+     * 
+     * Parameters:
+     * e - {Event} 
+     */
+    onWheelEvent: function(e){
+        
+        // make sure we have a map and check keyboard modifiers
+        if (!this.map || !this.checkModifiers(e)) {
+            return;
+        }
+        
+        // Ride up the element's DOM hierarchy to determine if it or any of 
+        //  its ancestors was: 
+        //   * specifically marked as scrollable
+        //   * one of our layer divs
+        //   * the map div
+        //
+        var overScrollableDiv = false;
+        var overLayerDiv = false;
+        var overMapDiv = false;
+        
+        var elem = OpenLayers.Event.element(e);
+        while((elem != null) && !overMapDiv && !overScrollableDiv) {
+
+            if (!overScrollableDiv) {
+                try {
+                    if (elem.currentStyle) {
+                        overflow = elem.currentStyle["overflow"];
+                    } else {
+                        var style = 
+                            document.defaultView.getComputedStyle(elem, null);
+                        var overflow = style.getPropertyValue("overflow");
+                    }
+                    overScrollableDiv = ( overflow && 
+                        (overflow == "auto") || (overflow == "scroll") );
+                } catch(err) {
+                    //sometimes when scrolling in a popup, this causes 
+                    // obscure browser error
+                }
+            }
+
+            if (!overLayerDiv) {
+                for(var i=0; i < this.map.layers.length; i++) {
+                    // Are we in the layer div? Note that we have two cases
+                    // here: one is to catch EventPane layers, which have a 
+                    // pane above the layer (layer.pane)
+                    if (elem == this.map.layers[i].div 
+                        || elem == this.map.layers[i].pane) { 
+                        overLayerDiv = true;
+                        break;
+                    }
+                }
+            }
+            overMapDiv = (elem == this.map.div);
+
+            elem = elem.parentNode;
+        }
+        
+        // Logic below is the following:
+        //
+        // If we are over a scrollable div or not over the map div:
+        //  * do nothing (let the browser handle scrolling)
+        //
+        //    otherwise 
+        // 
+        //    If we are over the layer div: 
+        //     * zoom/in out
+        //     then
+        //     * kill event (so as not to also scroll the page after zooming)
+        //
+        //       otherwise
+        //
+        //       Kill the event (dont scroll the page if we wheel over the 
+        //        layerswitcher or the pan/zoom control)
+        //
+        if (!overScrollableDiv && overMapDiv) {
+            if (overLayerDiv) {
+                this.wheelZoom(e);
+            }
+            OpenLayers.Event.stop(e);
+        }
+    },
+
+    /**
+     * Method: wheelZoom
+     * Given the wheel event, we carry out the appropriate zooming in or out,
+     *     based on the 'wheelDelta' or 'detail' property of the event.
+     * 
+     * Parameters:
+     * e - {Event}
+     */
+    wheelZoom: function(e) {
+        
+        var delta = 0;
+        if (!e) {
+            e = window.event;
+        }
+        if (e.wheelDelta) {
+            delta = e.wheelDelta/120; 
+            if (window.opera && window.opera.version() < 9.2) {
+                delta = -delta;
+            }
+        } else if (e.detail) {
+            delta = -e.detail / 3;
+        }
+        if (delta) {
+            // add the mouse position to the event because mozilla has 
+            // a bug with clientX and clientY (see 
+            // https://bugzilla.mozilla.org/show_bug.cgi?id=352179)
+            // getLonLatFromViewPortPx(e) returns wrong values
+            if (this.mousePosition) {
+                e.xy = this.mousePosition;
+            } 
+            if (!e.xy) {
+                // If the mouse hasn't moved over the map yet, then
+                // we don't have a mouse position (in FF), so we just
+                // act as if the mouse was at the center of the map.
+                // Note that we can tell we are in the map -- and 
+                // this.map is ensured to be true above.
+                e.xy = this.map.getPixelFromLonLat(
+                    this.map.getCenter()
+                );
+            }
+            if (delta < 0) {
+               this.callback("down", [e, delta]);
+            } else {
+               this.callback("up", [e, delta]);
+            }
+        }
+    },
+    
+    /**
+     * Method: mousemove
+     * Update the stored mousePosition on every move.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    mousemove: function (evt) {
+        this.mousePosition = evt.xy;
+    },
+
+    /**
+     * Method: activate 
+     */
+    activate: function (evt) {
+        if (OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            //register mousewheel events specifically on the window and document
+            var wheelListener = this.wheelListener;
+            OpenLayers.Event.observe(window, "DOMMouseScroll", wheelListener);
+            OpenLayers.Event.observe(window, "mousewheel", wheelListener);
+            OpenLayers.Event.observe(document, "mousewheel", wheelListener);
+            return true;
+        } else {
+            return false;
+        }
+    },
+
+    /**
+     * Method: deactivate 
+     */
+    deactivate: function (evt) {
+        if (OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            // unregister mousewheel events specifically on the window and document
+            var wheelListener = this.wheelListener;
+            OpenLayers.Event.stopObserving(window, "DOMMouseScroll", wheelListener);
+            OpenLayers.Event.stopObserving(window, "mousewheel", wheelListener);
+            OpenLayers.Event.stopObserving(document, "mousewheel", wheelListener);
+            return true;
+        } else {
+            return false;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.MouseWheel"
+});
+/* ======================================================================
+    OpenLayers/Layer.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Map.js
+ * @requires OpenLayers/Projection.js
+ */
+
+/**
+ * Class: OpenLayers.Layer
+ */
+OpenLayers.Layer = OpenLayers.Class({
+
+    /**
+     * APIProperty: id
+     * {String}
+     */
+    id: null,
+
+    /** 
+     * APIProperty: name
+     * {String}
+     */
+    name: null,
+
+    /** 
+     * APIProperty: div
+     * {DOMElement}
+     */
+    div: null,
+
+    /**
+     * Property: opacity
+     * {Float} The layer's opacity. Float number between 0.0 and 1.0.
+     */
+    opacity: null,
+
+    /**
+     * Constant: EVENT_TYPES
+     * {Array(String)} Supported application event types.  Register a listener
+     *     for a particular event with the following syntax:
+     * (code)
+     * layer.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     *  - *object* {Object} A reference to layer.events.object.
+     *  - *element* {DOMElement} A reference to layer.events.element.
+     *
+     * Supported map event types:
+     *  - *loadstart* Triggered when layer loading starts.
+     *  - *loadend* Triggered when layer loading ends.
+     *  - *loadcancel* Triggered when layer loading is canceled.
+     *  - *visibilitychanged* Triggered when layer visibility is changed.
+     */
+    EVENT_TYPES: ["loadstart", "loadend", "loadcancel", "visibilitychanged"],
+        
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>}
+     */
+    events: null,
+
+    /**
+     * APIProperty: map
+     * {<OpenLayers.Map>} This variable is set when the layer is added to 
+     *     the map, via the accessor function setMap().
+     */
+    map: null,
+    
+    /**
+     * APIProperty: isBaseLayer
+     * {Boolean} Whether or not the layer is a base layer. This should be set 
+     *     individually by all subclasses. Default is false
+     */
+    isBaseLayer: false,
+ 
+    /**
+     * Property: alpha
+     * {Boolean} The layer's images have an alpha channel.  Default is false. 
+     */
+    alpha: false,
+
+    /** 
+     * APIProperty: displayInLayerSwitcher
+     * {Boolean} Display the layer's name in the layer switcher.  Default is
+     *     true.
+     */
+    displayInLayerSwitcher: true,
+
+    /**
+     * APIProperty: visibility
+     * {Boolean} The layer should be displayed in the map.  Default is true.
+     */
+    visibility: true,
+
+    /**
+     * APIProperty: attribution
+     * {String} Attribution string, displayed when an 
+     *     <OpenLayers.Control.Attribution> has been added to the map.
+     */
+    attribution: null, 
+
+    /** 
+     * Property: inRange
+     * {Boolean} The current map resolution is within the layer's min/max 
+     *     range. This is set in <OpenLayers.Map.setCenter> whenever the zoom 
+     *     changes.
+     */
+    inRange: false,
+    
+    /**
+     * Propery: imageSize
+     * {<OpenLayers.Size>} For layers with a gutter, the image is larger than 
+     *     the tile by twice the gutter in each dimension.
+     */
+    imageSize: null,
+    
+    /**
+     * Property: imageOffset
+     * {<OpenLayers.Pixel>} For layers with a gutter, the image offset 
+     *     represents displacement due to the gutter.
+     */
+    imageOffset: null,
+
+  // OPTIONS
+
+    /** 
+     * Property: options
+     * {Object} An optional object whose properties will be set on the layer.
+     *     Any of the layer properties can be set as a property of the options
+     *     object and sent to the constructor when the layer is created.
+     */
+    options: null,
+
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     */
+    eventListeners: null,
+
+    /**
+     * APIProperty: gutter
+     * {Integer} Determines the width (in pixels) of the gutter around image
+     *     tiles to ignore.  By setting this property to a non-zero value,
+     *     images will be requested that are wider and taller than the tile
+     *     size by a value of 2 x gutter.  This allows artifacts of rendering
+     *     at tile edges to be ignored.  Set a gutter value that is equal to
+     *     half the size of the widest symbol that needs to be displayed.
+     *     Defaults to zero.  Non-tiled layers always have zero gutter.
+     */ 
+    gutter: 0, 
+
+    /**
+     * APIProperty: projection
+     * {<OpenLayers.Projection>} or {<String>} Set in the layer options to
+     *     override the default projection string this layer - also set maxExtent,
+     *     maxResolution, and units if appropriate. Can be either a string or
+     *     an <OpenLayers.Projection> object when created -- will be converted
+     *     to an object when setMap is called if a string is passed.  
+     */
+    projection: null,    
+    
+    /**
+     * APIProperty: units
+     * {String} The layer map units.  Defaults to 'degrees'.  Possible values
+     *     are 'degrees' (or 'dd'), 'm', 'ft', 'km', 'mi', 'inches'.
+     */
+    units: null,
+
+    /**
+     * APIProperty: scales
+     * {Array}  An array of map scales in descending order.  The values in the
+     *     array correspond to the map scale denominator.  Note that these
+     *     values only make sense if the display (monitor) resolution of the
+     *     client is correctly guessed by whomever is configuring the
+     *     application.  In addition, the units property must also be set.
+     *     Use <resolutions> instead wherever possible.
+     */
+    scales: null,
+
+    /**
+     * APIProperty: resolutions
+     * {Array} A list of map resolutions (map units per pixel) in descending
+     *     order.  If this is not set in the layer constructor, it will be set
+     *     based on other resolution related properties (maxExtent,
+     *     maxResolution, maxScale, etc.).
+     */
+    resolutions: null,
+    
+    /**
+     * APIProperty: maxExtent
+     * {<OpenLayers.Bounds>}  The center of these bounds will not stray outside
+     *     of the viewport extent during panning.  In addition, if
+     *     <displayOutsideMaxExtent> is set to false, data will not be
+     *     requested that falls completely outside of these bounds.
+     */
+    maxExtent: null,
+    
+    /**
+     * APIProperty: minExtent
+     * {<OpenLayers.Bounds>}
+     */
+    minExtent: null,
+    
+    /**
+     * APIProperty: maxResolution
+     * {Float} Default max is 360 deg / 256 px, which corresponds to
+     *     zoom level 0 on gmaps.  Specify a different value in the layer 
+     *     options if you are not using a geographic projection and 
+     *     displaying the whole world.
+     */
+    maxResolution: null,
+
+    /**
+     * APIProperty: minResolution
+     * {Float}
+     */
+    minResolution: null,
+
+    /**
+     * APIProperty: numZoomLevels
+     * {Integer}
+     */
+    numZoomLevels: null,
+   
+    /**
+     * APIProperty: minScale
+     * {Float}
+     */
+    minScale: null,
+    
+    /**
+     * APIProperty: maxScale
+     * {Float}
+     */
+    maxScale: null,
+
+    /**
+     * APIProperty: displayOutsideMaxExtent
+     * {Boolean} Request map tiles that are completely outside of the max 
+     *     extent for this layer. Defaults to false.
+     */
+    displayOutsideMaxExtent: false,
+
+    /**
+     * APIProperty: wrapDateLine
+     * {Boolean} #487 for more info.   
+     */
+    wrapDateLine: false,
+    
+    /**
+     * APIProperty: transitionEffect
+     * {String} The transition effect to use when the map is panned or
+     *     zoomed.  
+     *
+     * There are currently two supported values:
+     *  - *null* No transition effect (the default).
+     *  - *resize*  Existing tiles are resized on zoom to provide a visual
+     *    effect of the zoom having taken place immediately.  As the
+     *    new tiles become available, they are drawn over top of the
+     *    resized tiles.
+     */
+    transitionEffect: null,
+    
+    /**
+     * Property: SUPPORTED_TRANSITIONS
+     * {Array} An immutable (that means don't change it!) list of supported 
+     *     transitionEffect values.
+     */
+    SUPPORTED_TRANSITIONS: ['resize'],
+    
+    /**
+     * Constructor: OpenLayers.Layer
+     *
+     * Parameters:
+     * name - {String} The layer name
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+
+        this.addOptions(options);
+
+        this.name = name;
+        
+        if (this.id == null) {
+
+            this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+
+            this.div = OpenLayers.Util.createDiv(this.id);
+            this.div.style.width = "100%";
+            this.div.style.height = "100%";
+
+            this.events = new OpenLayers.Events(this, this.div, 
+                                                this.EVENT_TYPES);
+            if(this.eventListeners instanceof Object) {
+                this.events.on(this.eventListeners);
+            }
+
+        }
+
+        if (this.wrapDateLine) {
+            this.displayOutsideMaxExtent = true;
+        }
+    },
+    
+    /**
+     * Method: destroy
+     * Destroy is a destructor: this is to alleviate cyclic references which
+     *     the Javascript garbage cleaner can not take care of on its own.
+     *
+     * Parameters:
+     * setNewBaseLayer - {Boolean} Set a new base layer when this layer has
+     *     been destroyed.  Default is true.
+     */
+    destroy: function(setNewBaseLayer) {
+        if (setNewBaseLayer == null) {
+            setNewBaseLayer = true;
+        }
+        if (this.map != null) {
+            this.map.removeLayer(this, setNewBaseLayer);
+        }
+        this.projection = null;
+        this.map = null;
+        this.name = null;
+        this.div = null;
+        this.options = null;
+
+        if (this.events) {
+            if(this.eventListeners) {
+                this.events.un(this.eventListeners);
+            }
+            this.events.destroy();
+        }
+        this.eventListeners = null;
+        this.events = null;
+    },
+    
+   /**
+    * Method: clone
+    *
+    * Parameters:
+    * obj - {<OpenLayers.Layer>} The layer to be cloned
+    *
+    * Returns:
+    * {<OpenLayers.Layer>} An exact clone of this <OpenLayers.Layer>
+    */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer(this.name, this.options);
+        } 
+        
+        // catch any randomly tagged-on properties
+        OpenLayers.Util.applyDefaults(obj, this);
+        
+        // a cloned layer should never have its map property set
+        //  because it has not been added to a map yet. 
+        obj.map = null;
+        
+        return obj;
+    },
+    
+    /** 
+     * APIMethod: setName
+     * Sets the new layer name for this layer.  Can trigger a changelayer event
+     *     on the map.
+     *
+     * Parameters:
+     * newName - {String} The new name.
+     */
+    setName: function(newName) {
+        if (newName != this.name) {
+            this.name = newName;
+            if (this.map != null) {
+                this.map.events.triggerEvent("changelayer", {
+                    layer: this,
+                    property: "name"
+                });
+            }
+        }
+    },    
+    
+   /**
+    * APIMethod: addOptions
+    * 
+    * Parameters:
+    * newOptions - {Object}
+    */
+    addOptions: function (newOptions) {
+        
+        if (this.options == null) {
+            this.options = {};
+        }
+        
+        // update our copy for clone
+        OpenLayers.Util.extend(this.options, newOptions);
+
+        // add new options to this
+        OpenLayers.Util.extend(this, newOptions);
+    },
+    
+    /**
+     * APIMethod: onMapResize
+     * This function can be implemented by subclasses
+     */
+    onMapResize: function() {
+        //this function can be implemented by subclasses  
+    },
+
+    /**
+     * APIMethod: redraw
+     * Redraws the layer.  Returns true if the layer was redrawn, false if not.
+     *
+     * Returns:
+     * {Boolean} The layer was redrawn.
+     */
+    redraw: function() {
+        var redrawn = false;
+        if (this.map) {
+
+            // min/max Range may have changed
+            this.inRange = this.calculateInRange();
+
+            // map's center might not yet be set
+            var extent = this.getExtent();
+
+            if (extent && this.inRange && this.visibility) {
+                this.moveTo(extent, true, false);
+                redrawn = true;
+            }
+        }
+        return redrawn;
+    },
+
+    /**
+     * Method: moveTo
+     * 
+     * Parameters:
+     * bound - {<OpenLayers.Bounds>}
+     * zoomChanged - {Boolean} Tells when zoom has changed, as layers have to
+     *     do some init work in that case.
+     * dragging - {Boolean}
+     */
+    moveTo:function(bounds, zoomChanged, dragging) {
+        var display = this.visibility;
+        if (!this.isBaseLayer) {
+            display = display && this.inRange;
+        }
+        this.display(display);
+    },
+
+    /**
+     * Method: setMap
+     * Set the map property for the layer. This is done through an accessor
+     *     so that subclasses can override this and take special action once 
+     *     they have their map variable set. 
+     * 
+     *     Here we take care to bring over any of the necessary default 
+     *     properties from the map. 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    setMap: function(map) {
+        if (this.map == null) {
+        
+            this.map = map;
+            
+            // grab some essential layer data from the map if it hasn't already
+            //  been set
+            this.maxExtent = this.maxExtent || this.map.maxExtent;
+            this.projection = this.projection || this.map.projection;
+            
+            if (this.projection && typeof this.projection == "string") {
+                this.projection = new OpenLayers.Projection(this.projection);
+            }
+            
+            // Check the projection to see if we can get units -- if not, refer
+            // to properties.
+            this.units = this.projection.getUnits() ||
+                         this.units || this.map.units;
+            
+            this.initResolutions();
+            
+            if (!this.isBaseLayer) {
+                this.inRange = this.calculateInRange();
+                var show = ((this.visibility) && (this.inRange));
+                this.div.style.display = show ? "" : "none";
+            }
+            
+            // deal with gutters
+            this.setTileSize();
+        }
+    },
+    
+    /**
+     * APIMethod: removeMap
+     * Just as setMap() allows each layer the possibility to take a 
+     *     personalized action on being added to the map, removeMap() allows
+     *     each layer to take a personalized action on being removed from it. 
+     *     For now, this will be mostly unused, except for the EventPane layer,
+     *     which needs this hook so that it can remove the special invisible
+     *     pane. 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    removeMap: function(map) {
+        //to be overridden by subclasses
+    },
+    
+    /**
+     * APIMethod: getImageSize
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} The size that the image should be, taking into 
+     *     account gutters.
+     */ 
+    getImageSize: function() { 
+        return (this.imageSize || this.tileSize); 
+    },    
+  
+    /**
+     * APIMethod: setTileSize
+     * Set the tile size based on the map size.  This also sets layer.imageSize
+     *     and layer.imageOffset for use by Tile.Image.
+     * 
+     * Parameters:
+     * size - {<OpenLayers.Size>}
+     */
+    setTileSize: function(size) {
+        var tileSize = (size) ? size :
+                                ((this.tileSize) ? this.tileSize :
+                                                   this.map.getTileSize());
+        this.tileSize = tileSize;
+        if(this.gutter) {
+          // layers with gutters need non-null tile sizes
+          //if(tileSize == null) {
+          //    OpenLayers.console.error("Error in layer.setMap() for " +
+          //                              this.name + ": layers with " +
+          //                              "gutters need non-null tile sizes");
+          //}
+            this.imageOffset = new OpenLayers.Pixel(-this.gutter, 
+                                                    -this.gutter); 
+            this.imageSize = new OpenLayers.Size(tileSize.w + (2*this.gutter), 
+                                                 tileSize.h + (2*this.gutter)); 
+        }
+    },
+
+    /**
+     * APIMethod: getVisibility
+     * 
+     * Returns:
+     * {Boolean} The layer should be displayed (if in range).
+     */
+    getVisibility: function() {
+        return this.visibility;
+    },
+
+    /** 
+     * APIMethod: setVisibility
+     * Set the visibility flag for the layer and hide/show & redraw 
+     *     accordingly. Fire event unless otherwise specified
+     * 
+     * Note that visibility is no longer simply whether or not the layer's
+     *     style.display is set to "block". Now we store a 'visibility' state 
+     *     property on the layer class, this allows us to remember whether or 
+     *     not we *desire* for a layer to be visible. In the case where the 
+     *     map's resolution is out of the layer's range, this desire may be 
+     *     subverted.
+     * 
+     * Parameters:
+     * visible - {Boolean} Whether or not to display the layer (if in range)
+     */
+    setVisibility: function(visibility) {
+        if (visibility != this.visibility) {
+            this.visibility = visibility;
+            this.display(visibility);
+            this.redraw();
+            if (this.map != null) {
+                this.map.events.triggerEvent("changelayer", {
+                    layer: this,
+                    property: "visibility"
+                });
+            }
+            this.events.triggerEvent("visibilitychanged");
+        }
+    },
+
+    /** 
+     * APIMethod: display
+     * Hide or show the Layer
+     * 
+     * Parameters:
+     * display - {Boolean}
+     */
+    display: function(display) {
+        var inRange = this.calculateInRange();
+        if (display != (this.div.style.display != "none")) {
+            this.div.style.display = (display && inRange) ? "block" : "none";
+        }
+    },
+
+    /**
+     * Method: calculateInRange
+     * 
+     * Returns:
+     * {Boolean} The layer is displayable at the current map's current
+     *     resolution.
+     */
+    calculateInRange: function() {
+        var inRange = false;
+        if (this.map) {
+            var resolution = this.map.getResolution();
+            inRange = ( (resolution >= this.minResolution) &&
+                        (resolution <= this.maxResolution) );
+        }
+        return inRange;
+    },
+
+    /** 
+     * APIMethod: setIsBaseLayer
+     * 
+     * Parameters:
+     * isBaseLayer - {Boolean}
+     */
+    setIsBaseLayer: function(isBaseLayer) {
+        if (isBaseLayer != this.isBaseLayer) {
+            this.isBaseLayer = isBaseLayer;
+            if (this.map != null) {
+                this.map.events.triggerEvent("changebaselayer", {
+                    layer: this
+                });
+            }
+        }
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Baselayer Functions                  */
+  /*                                                      */
+  /********************************************************/
+  
+    /** 
+     * Method: initResolutions
+     * This method's responsibility is to set up the 'resolutions' array 
+     *     for the layer -- this array is what the layer will use to interface
+     *     between the zoom levels of the map and the resolution display 
+     *     of the layer.
+     * 
+     * The user has several options that determine how the array is set up.
+     *  
+     * For a detailed explanation, see the following wiki from the 
+     *     openlayers.org homepage:
+     *     http://trac.openlayers.org/wiki/SettingZoomLevels
+     */
+    initResolutions: function() {
+
+        // These are the relevant options which are used for calculating 
+        //  resolutions information.
+        //
+        var props = new Array(
+          'projection', 'units',
+          'scales', 'resolutions',
+          'maxScale', 'minScale', 
+          'maxResolution', 'minResolution', 
+          'minExtent', 'maxExtent',
+          'numZoomLevels', 'maxZoomLevel'
+        );
+
+        // First we create a new object where we will store all of the 
+        //  resolution-related properties that we find in either the layer's
+        //  'options' array or from the map.
+        //
+        var confProps = {};        
+        for(var i=0; i < props.length; i++) {
+            var property = props[i];
+            confProps[property] = this.options[property] || this.map[property];
+        }
+
+        // Do not use the scales/resolutions at the map level if
+        // minScale/minResolution and maxScale/maxResolution are
+        // specified at the layer level
+        if (this.options.minScale != null &&
+            this.options.maxScale != null &&
+            this.options.scales == null) {
+            confProps.scales = null;
+        }
+        if (this.options.minResolution != null &&
+            this.options.maxResolution != null &&
+            this.options.resolutions == null) {
+            confProps.resolutions = null;
+        }
+
+        // If numZoomLevels hasn't been set and the maxZoomLevel *has*, 
+        //  then use maxZoomLevel to calculate numZoomLevels
+        //
+        if ( (!confProps.numZoomLevels) && (confProps.maxZoomLevel) ) {
+            confProps.numZoomLevels = confProps.maxZoomLevel + 1;
+        }
+
+        // First off, we take whatever hodge-podge of values we have and 
+        //  calculate/distill them down into a resolutions[] array
+        //
+        if ((confProps.scales != null) || (confProps.resolutions != null)) {
+          //preset levels
+            if (confProps.scales != null) {
+                confProps.resolutions = [];
+                for(var i = 0; i < confProps.scales.length; i++) {
+                    var scale = confProps.scales[i];
+                    confProps.resolutions[i] = 
+                       OpenLayers.Util.getResolutionFromScale(scale, 
+                                                              confProps.units);
+                }
+            }
+            confProps.numZoomLevels = confProps.resolutions.length;
+
+        } else {
+          //maxResolution and numZoomLevels based calculation
+
+            // determine maxResolution
+            if (confProps.minScale) {
+                confProps.maxResolution = 
+                    OpenLayers.Util.getResolutionFromScale(confProps.minScale, 
+                                                           confProps.units);
+            } else if (confProps.maxResolution == "auto") {
+                var viewSize = this.map.getSize();
+                var wRes = confProps.maxExtent.getWidth() / viewSize.w;
+                var hRes = confProps.maxExtent.getHeight()/ viewSize.h;
+                confProps.maxResolution = Math.max(wRes, hRes);
+            } 
+
+            // determine minResolution
+            if (confProps.maxScale != null) {           
+                confProps.minResolution = 
+                    OpenLayers.Util.getResolutionFromScale(confProps.maxScale, 
+                                                           confProps.units);
+            } else if ( (confProps.minResolution == "auto") && 
+                        (confProps.minExtent != null) ) {
+                var viewSize = this.map.getSize();
+                var wRes = confProps.minExtent.getWidth() / viewSize.w;
+                var hRes = confProps.minExtent.getHeight()/ viewSize.h;
+                confProps.minResolution = Math.max(wRes, hRes);
+            } 
+
+            // determine numZoomLevels if not already set on the layer
+            // this gives numZoomLevels assuming approximately base 2 scaling
+            if (confProps.minResolution != null &&
+                this.options.numZoomLevels == undefined) {
+                var ratio = confProps.maxResolution / confProps.minResolution;
+                confProps.numZoomLevels = 
+                    Math.floor(Math.log(ratio) / Math.log(2)) + 1;
+            }
+            
+            // now we have numZoomLevels and maxResolution, 
+            //  we can populate the resolutions array
+            confProps.resolutions = new Array(confProps.numZoomLevels);
+            var base = 2;
+            if(typeof confProps.minResolution == "number" &&
+               confProps.numZoomLevels > 1) {
+                /**
+                 * If maxResolution and minResolution are set (or related
+                 * scale properties), we calculate the base for exponential
+                 * scaling that starts at maxResolution and ends at
+                 * minResolution in numZoomLevels steps.
+                 */
+                base = Math.pow(
+                    (confProps.maxResolution / confProps.minResolution),
+                    (1 / (confProps.numZoomLevels - 1))
+                );
+            }
+            for (var i=0; i < confProps.numZoomLevels; i++) {
+                var res = confProps.maxResolution / Math.pow(base, i);
+                confProps.resolutions[i] = res;
+            }
+        }
+        
+        //sort resolutions array ascendingly
+        //
+        confProps.resolutions.sort( function(a, b) { return(b-a); } );
+
+        // now set our newly calculated values back to the layer 
+        //  Note: We specifically do *not* set them to layer.options, which we 
+        //        will preserve as it was when we added this layer to the map. 
+        //        this way cloned layers reset themselves to new map div 
+        //        dimensions)
+        //
+
+        this.resolutions = confProps.resolutions;
+        this.maxResolution = confProps.resolutions[0];
+        var lastIndex = confProps.resolutions.length - 1;
+        this.minResolution = confProps.resolutions[lastIndex];
+        
+        this.scales = [];
+        for(var i = 0; i < confProps.resolutions.length; i++) {
+            this.scales[i] = 
+               OpenLayers.Util.getScaleFromResolution(confProps.resolutions[i], 
+                                                      confProps.units);
+        }
+        this.minScale = this.scales[0];
+        this.maxScale = this.scales[this.scales.length - 1];
+        
+        this.numZoomLevels = confProps.numZoomLevels;
+    },
+
+    /**
+     * APIMethod: getResolution
+     * 
+     * Returns:
+     * {Float} The currently selected resolution of the map, taken from the
+     *     resolutions array, indexed by current zoom level.
+     */
+    getResolution: function() {
+        var zoom = this.map.getZoom();
+        return this.getResolutionForZoom(zoom);
+    },
+
+    /** 
+     * APIMethod: getExtent
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object which represents the lon/lat 
+     *     bounds of the current viewPort.
+     */
+    getExtent: function() {
+        // just use stock map calculateBounds function -- passing no arguments
+        //  means it will user map's current center & resolution
+        //
+        return this.map.calculateBounds();
+    },
+
+    /**
+     * APIMethod: getZoomForExtent
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * closest - {Boolean} Find the zoom level that most closely fits the 
+     *     specified bounds. Note that this may result in a zoom that does 
+     *     not exactly contain the entire extent.
+     *     Default is false.
+     *
+     * Returns:
+     * {Integer} The index of the zoomLevel (entry in the resolutions array) 
+     *     for the passed-in extent. We do this by calculating the ideal 
+     *     resolution for the given extent (based on the map size) and then 
+     *     calling getZoomForResolution(), passing along the 'closest'
+     *     parameter.
+     */
+    getZoomForExtent: function(extent, closest) {
+        var viewSize = this.map.getSize();
+        var idealResolution = Math.max( extent.getWidth()  / viewSize.w,
+                                        extent.getHeight() / viewSize.h );
+
+        return this.getZoomForResolution(idealResolution, closest);
+    },
+    
+    /** 
+     * Method: getDataExtent
+     * Calculates the max extent which includes all of the data for the layer.
+     *     This function is to be implemented by subclasses.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>}
+     */
+    getDataExtent: function () {
+        //to be implemented by subclasses
+    },
+
+    /**
+     * APIMethod: getResolutionForZoom
+     * 
+     * Parameter:
+     * zoom - {Float}
+     * 
+     * Returns:
+     * {Float} A suitable resolution for the specified zoom.
+     */
+    getResolutionForZoom: function(zoom) {
+        zoom = Math.max(0, Math.min(zoom, this.resolutions.length - 1));
+        var resolution;
+        if(this.map.fractionalZoom) {
+            var low = Math.floor(zoom);
+            var high = Math.ceil(zoom);
+            resolution = this.resolutions[high] +
+                ((zoom-low) * (this.resolutions[low]-this.resolutions[high]));
+        } else {
+            resolution = this.resolutions[Math.round(zoom)];
+        }
+        return resolution;
+    },
+
+    /**
+     * APIMethod: getZoomForResolution
+     * 
+     * Parameters:
+     * resolution - {Float}
+     * closest - {Boolean} Find the zoom level that corresponds to the absolute 
+     *     closest resolution, which may result in a zoom whose corresponding
+     *     resolution is actually smaller than we would have desired (if this
+     *     is being called from a getZoomForExtent() call, then this means that
+     *     the returned zoom index might not actually contain the entire 
+     *     extent specified... but it'll be close).
+     *     Default is false.
+     * 
+     * Returns:
+     * {Integer} The index of the zoomLevel (entry in the resolutions array) 
+     *     that corresponds to the best fit resolution given the passed in 
+     *     value and the 'closest' specification.
+     */
+    getZoomForResolution: function(resolution, closest) {
+        var zoom;
+        if(this.map.fractionalZoom) {
+            var lowZoom = 0;
+            var highZoom = this.resolutions.length - 1;
+            var highRes = this.resolutions[lowZoom];
+            var lowRes = this.resolutions[highZoom];
+            var res;
+            for(var i=0; i<this.resolutions.length; ++i) {
+                res = this.resolutions[i];
+                if(res >= resolution) {
+                    highRes = res;
+                    lowZoom = i;
+                }
+                if(res <= resolution) {
+                    lowRes = res;
+                    highZoom = i;
+                    break;
+                }
+            }
+            var dRes = highRes - lowRes;
+            if(dRes > 0) {
+                zoom = lowZoom + ((resolution - lowRes) / dRes);
+            } else {
+                zoom = lowZoom;
+            }
+        } else {
+            var diff;
+            var minDiff = Number.POSITIVE_INFINITY;
+            for(var i=0; i < this.resolutions.length; i++) {            
+                if (closest) {
+                    diff = Math.abs(this.resolutions[i] - resolution);
+                    if (diff > minDiff) {
+                        break;
+                    }
+                    minDiff = diff;
+                } else {
+                    if (this.resolutions[i] < resolution) {
+                        break;
+                    }
+                }
+            }
+            zoom = Math.max(0, i-1);
+        }
+        return zoom;
+    },
+    
+    /**
+     * APIMethod: getLonLatFromViewPortPx
+     * 
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} An OpenLayers.LonLat which is the passed-in 
+     *     view port <OpenLayers.Pixel>, translated into lon/lat by the layer.
+     */
+    getLonLatFromViewPortPx: function (viewPortPx) {
+        var lonlat = null;
+        if (viewPortPx != null) {
+            var size = this.map.getSize();
+            var center = this.map.getCenter();
+            if (center) {
+                var res  = this.map.getResolution();
+        
+                var delta_x = viewPortPx.x - (size.w / 2);
+                var delta_y = viewPortPx.y - (size.h / 2);
+            
+                lonlat = new OpenLayers.LonLat(center.lon + delta_x * res ,
+                                             center.lat - delta_y * res); 
+
+                if (this.wrapDateLine) {
+                    lonlat = lonlat.wrapDateLine(this.maxExtent);
+                }
+            } // else { DEBUG STATEMENT }
+        }
+        return lonlat;
+    },
+
+    /**
+     * APIMethod: getViewPortPxFromLonLat
+     * Returns a pixel location given a map location.  This method will return
+     *     fractional pixel values.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     *
+     * Returns: 
+     * {<OpenLayers.Pixel>} An <OpenLayers.Pixel> which is the passed-in 
+     *     <OpenLayers.LonLat>,translated into view port pixels.
+     */
+    getViewPortPxFromLonLat: function (lonlat) {
+        var px = null; 
+        if (lonlat != null) {
+            var resolution = this.map.getResolution();
+            var extent = this.map.getExtent();
+            px = new OpenLayers.Pixel(
+                (1/resolution * (lonlat.lon - extent.left)),
+                (1/resolution * (extent.top - lonlat.lat))
+            );    
+        }
+        return px;
+    },
+    
+    /**
+     * APIMethod: setOpacity
+     * Sets the opacity for the entire layer (all images)
+     * 
+     * Parameter:
+     * opacity - {Float}
+     */
+    setOpacity: function(opacity) {
+        if (opacity != this.opacity) {
+            this.opacity = opacity;
+            for(var i=0; i<this.div.childNodes.length; ++i) {
+                var element = this.div.childNodes[i].firstChild;
+                OpenLayers.Util.modifyDOMElement(element, null, null, null, 
+                                                 null, null, null, opacity);
+            }
+        }
+    },
+
+    /**
+     * Method: setZIndex
+     * 
+     * Parameters: 
+     * zIndex - {Integer}
+     */    
+    setZIndex: function (zIndex) {
+        this.div.style.zIndex = zIndex;
+    },
+
+    /**
+     * Method: adjustBounds
+     * This function will take a bounds, and if wrapDateLine option is set
+     *     on the layer, it will return a bounds which is wrapped around the 
+     *     world. We do not wrap for bounds which *cross* the 
+     *     maxExtent.left/right, only bounds which are entirely to the left 
+     *     or entirely to the right.
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    adjustBounds: function (bounds) {
+
+        if (this.gutter) {
+            // Adjust the extent of a bounds in map units by the 
+            // layer's gutter in pixels.
+            var mapGutter = this.gutter * this.map.getResolution();
+            bounds = new OpenLayers.Bounds(bounds.left - mapGutter,
+                                           bounds.bottom - mapGutter,
+                                           bounds.right + mapGutter,
+                                           bounds.top + mapGutter);
+        }
+
+        if (this.wrapDateLine) {
+            // wrap around the date line, within the limits of rounding error
+            var wrappingOptions = { 
+                'rightTolerance':this.getResolution()
+            };    
+            bounds = bounds.wrapDateLine(this.maxExtent, wrappingOptions);
+                              
+        }
+        return bounds;
+    },
+
+    CLASS_NAME: "OpenLayers.Layer"
+});
+/* ======================================================================
+    OpenLayers/Marker/Box.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Marker.js
+ */
+
+/**
+ * Class: OpenLayers.Marker.Box
+ *
+ * Inherits from:
+ *  - <OpenLayers.Marker> 
+ */
+OpenLayers.Marker.Box = OpenLayers.Class(OpenLayers.Marker, {
+
+    /** 
+     * Property: bounds 
+     * {<OpenLayers.Bounds>} 
+     */
+    bounds: null,
+
+    /** 
+     * Property: div 
+     * {DOMElement} 
+     */
+    div: null,
+    
+    /** 
+     * Constructor: OpenLayers.Marker.Box
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} 
+     * borderColor - {String} 
+     * borderWidth - {int} 
+     */
+    initialize: function(bounds, borderColor, borderWidth) {
+        this.bounds = bounds;
+        this.div    = OpenLayers.Util.createDiv();
+        this.div.style.overflow = 'hidden';
+        this.events = new OpenLayers.Events(this, this.div, null);
+        this.setBorder(borderColor, borderWidth);
+    },
+
+    /**
+     * Method: destroy 
+     */    
+    destroy: function() {
+
+        this.bounds = null;
+        this.div = null;
+
+        OpenLayers.Marker.prototype.destroy.apply(this, arguments);
+    },
+
+    /** 
+     * Method: setBorder
+     * Allow the user to change the box's color and border width
+     * 
+     * Parameters:
+     * color - {String} Default is "red"
+     * width - {int} Default is 2
+     */
+    setBorder: function (color, width) {
+        if (!color) {
+            color = "red";
+        }
+        if (!width) {
+            width = 2;
+        }
+        this.div.style.border = width + "px solid " + color;
+    },
+    
+    /** 
+    * Method: draw
+    * 
+    * Parameters:
+    * px - {<OpenLayers.Pixel>} 
+    * sz - {<OpenLayers.Size>} 
+    * 
+    * Returns: 
+    * {DOMElement} A new DOM Image with this marker´s icon set at the 
+    *         location passed-in
+    */
+    draw: function(px, sz) {
+        OpenLayers.Util.modifyDOMElement(this.div, null, px, sz);
+        return this.div;
+    }, 
+
+    /**
+     * Method: onScreen
+     * 
+     * Rreturn:
+     * {Boolean} Whether or not the marker is currently visible on screen.
+     */
+    onScreen:function() {
+        var onScreen = false;
+        if (this.map) {
+            var screenBounds = this.map.getExtent();
+            onScreen = screenBounds.containsBounds(this.bounds, true, true);
+        }    
+        return onScreen;
+    },
+    
+    /**
+     * Method: display
+     * Hide or show the icon
+     * 
+     * Parameters:
+     * display - {Boolean} 
+     */
+    display: function(display) {
+        this.div.style.display = (display) ? "" : "none";
+    },
+
+    CLASS_NAME: "OpenLayers.Marker.Box"
+});
+
+/* ======================================================================
+    OpenLayers/Control/DragPan.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Handler/Drag.js
+ */
+
+/**
+ * Class: OpenLayers.Control.DragPan
+ * DragPan control.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.DragPan = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * Property: type
+     * {OpenLayers.Control.TYPES}
+     */
+    type: OpenLayers.Control.TYPE_TOOL,
+    
+    /**
+     * Property: panned
+     * {Boolean} The map moved.
+     */
+    panned: false,
+    
+    /**
+     * Method: draw
+     * Creates a Drag handler, using <panMap> and
+     * <panMapDone> as callbacks.
+     */    
+    draw: function() {
+        this.handler = new OpenLayers.Handler.Drag(this,
+                            {"move": this.panMap, "done": this.panMapDone});
+    },
+
+    /**
+    * Method: panMap
+    *
+    * Parameters:
+    * xy - {<OpenLayers.Pixel>} Pixel of the mouse position
+    */
+    panMap: function(xy) {
+        this.panned = true;
+        this.map.pan(
+            this.handler.last.x - xy.x,
+            this.handler.last.y - xy.y,
+            {dragging: this.handler.dragging, animate: false}
+        );
+    },
+    
+    /**
+     * Method: panMapDone
+     * Finish the panning operation.  Only call setCenter (through <panMap>)
+     *     if the map has actually been moved.
+     *
+     * Parameters:
+     * xy - {<OpenLayers.Pixel>} Pixel of the mouse position
+     */
+    panMapDone: function(xy) {
+        if(this.panned) {
+            this.panMap(xy);
+            this.panned = false;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.DragPan"
+});
+/* ======================================================================
+    OpenLayers/Handler/Box.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ * @requires OpenLayers/Handler/Drag.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Box
+ * Handler for dragging a rectangle across the map.  Box is displayed 
+ * on mouse down, moves on mouse move, and is finished on mouse up.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler> 
+ */
+OpenLayers.Handler.Box = OpenLayers.Class(OpenLayers.Handler, {
+
+    /** 
+     * Property: dragHandler 
+     * {<OpenLayers.Handler.Drag>} 
+     */
+    dragHandler: null,
+
+    /**
+     * APIProperty: boxDivClassName
+     * {String} The CSS class to use for drawing the box. Default is
+     *     olHandlerBoxZoomBox
+     */
+    boxDivClassName: 'olHandlerBoxZoomBox',
+
+    /**
+     * Constructor: OpenLayers.Handler.Box
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} 
+     * callbacks - {Object} An object containing a single function to be
+     *                          called when the drag operation is finished.
+     *                          The callback should expect to recieve a single
+     *                          argument, the point geometry.
+     * options - {Object} 
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+        var callbacks = {
+            "down": this.startBox, 
+            "move": this.moveBox, 
+            "out":  this.removeBox,
+            "up":   this.endBox
+        };
+        this.dragHandler = new OpenLayers.Handler.Drag(
+                                this, callbacks, {keyMask: this.keyMask});
+    },
+
+    /**
+     * Method: setMap
+     */
+    setMap: function (map) {
+        OpenLayers.Handler.prototype.setMap.apply(this, arguments);
+        if (this.dragHandler) {
+            this.dragHandler.setMap(map);
+        }
+    },
+
+    /**
+    * Method: startBox
+    *
+    * Parameters:
+    * evt - {Event} 
+    */
+    startBox: function (xy) {
+        this.zoomBox = OpenLayers.Util.createDiv('zoomBox',
+                                                 this.dragHandler.start);
+        this.zoomBox.className = this.boxDivClassName;                                         
+        this.zoomBox.style.zIndex = this.map.Z_INDEX_BASE["Popup"] - 1;
+        this.map.viewPortDiv.appendChild(this.zoomBox);
+
+        // TBD: use CSS classes instead
+        this.map.div.style.cursor = "crosshair";
+    },
+
+    /**
+    * Method: moveBox
+    */
+    moveBox: function (xy) {
+        var deltaX = Math.abs(this.dragHandler.start.x - xy.x);
+        var deltaY = Math.abs(this.dragHandler.start.y - xy.y);
+        this.zoomBox.style.width = Math.max(1, deltaX) + "px";
+        this.zoomBox.style.height = Math.max(1, deltaY) + "px";
+        if (xy.x < this.dragHandler.start.x) {
+            this.zoomBox.style.left = xy.x+"px";
+        }
+        if (xy.y < this.dragHandler.start.y) {
+            this.zoomBox.style.top = xy.y+"px";
+        }
+    },
+
+    /**
+    * Method: endBox
+    */
+    endBox: function(end) {
+        var result;
+        if (Math.abs(this.dragHandler.start.x - end.x) > 5 ||    
+            Math.abs(this.dragHandler.start.y - end.y) > 5) {   
+            var start = this.dragHandler.start;
+            var top = Math.min(start.y, end.y);
+            var bottom = Math.max(start.y, end.y);
+            var left = Math.min(start.x, end.x);
+            var right = Math.max(start.x, end.x);
+            result = new OpenLayers.Bounds(left, bottom, right, top);
+        } else {
+            result = this.dragHandler.start.clone(); // i.e. OL.Pixel
+        } 
+        this.removeBox();
+
+        // TBD: use CSS classes instead
+        this.map.div.style.cursor = "";
+
+        this.callback("done", [result]);
+    },
+
+    /**
+     * Method: removeBox
+     * Remove the zoombox from the screen and nullify our reference to it.
+     */
+    removeBox: function() {
+        this.map.viewPortDiv.removeChild(this.zoomBox);
+        this.zoomBox = null;
+    },
+
+    /**
+     * Method: activate
+     */
+    activate: function () {
+        if (OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            this.dragHandler.activate();
+            return true;
+        } else {
+            return false;
+        }
+    },
+
+    /**
+     * Method: deactivate
+     */
+    deactivate: function () {
+        if (OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.dragHandler.deactivate();
+            return true;
+        } else {
+            return false;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Box"
+});
+/* ======================================================================
+    OpenLayers/Layer/HTTPRequest.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Layer.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.HTTPRequest
+ * 
+ * Inherits from: 
+ *  - <OpenLayers.Layer>
+ */
+OpenLayers.Layer.HTTPRequest = OpenLayers.Class(OpenLayers.Layer, {
+
+    /** 
+     * Constant: URL_HASH_FACTOR
+     * {Float} Used to hash URL param strings for multi-WMS server selection.
+     *         Set to the Golden Ratio per Knuth's recommendation.
+     */
+    URL_HASH_FACTOR: (Math.sqrt(5) - 1) / 2,
+
+    /** 
+     * Property: url
+     * {Array(String) or String} This is either an array of url strings or 
+     *                           a single url string. 
+     */
+    url: null,
+
+    /** 
+     * Property: params
+     * {Object} Hashtable of key/value parameters
+     */
+    params: null,
+    
+    /** 
+     * APIProperty: reproject
+     * *Deprecated*. See http://trac.openlayers.org/wiki/SpatialMercator
+     * for information on the replacement for this functionality. 
+     * {Boolean} Whether layer should reproject itself based on base layer 
+     *           locations. This allows reprojection onto commercial layers. 
+     *           Default is false: Most layers can't reproject, but layers 
+     *           which can create non-square geographic pixels can, like WMS.
+     *           
+     */
+    reproject: false,
+
+    /**
+     * Constructor: OpenLayers.Layer.HTTPRequest
+     * 
+     * Parameters:
+     * name - {String}
+     * url - {Array(String) or String}
+     * params - {Object}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, params, options) {
+        var newArguments = arguments;
+        newArguments = [name, options];
+        OpenLayers.Layer.prototype.initialize.apply(this, newArguments);
+        this.url = url;
+        this.params = OpenLayers.Util.extend( {}, params);
+    },
+
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function() {
+        this.url = null;
+        this.params = null;
+        OpenLayers.Layer.prototype.destroy.apply(this, arguments); 
+    },
+    
+    /**
+     * APIMethod: clone
+     * 
+     * Parameters:
+     * obj - {Object}
+     * 
+     * Returns:
+     * {<OpenLayers.Layer.HTTPRequest>} An exact clone of this 
+     *                                  <OpenLayers.Layer.HTTPRequest>
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.HTTPRequest(this.name,
+                                                   this.url,
+                                                   this.params,
+                                                   this.options);
+        }
+        
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+        
+        return obj;
+    },
+
+    /** 
+     * APIMethod: setUrl
+     * 
+     * Parameters:
+     * newUrl - {String}
+     */
+    setUrl: function(newUrl) {
+        this.url = newUrl;
+    },
+
+    /**
+     * APIMethod: mergeNewParams
+     * 
+     * Parameters:
+     * newParams - {Object}
+     *
+     * Returns:
+     * redrawn: {Boolean} whether the layer was actually redrawn.
+     */
+    mergeNewParams:function(newParams) {
+        this.params = OpenLayers.Util.extend(this.params, newParams);
+        return this.redraw();
+    },
+
+    /**
+     * APIMethod: redraw
+     * Redraws the layer.  Returns true if the layer was redrawn, false if not.
+     *
+     * Parameters:
+     * force - {Boolean} Force redraw by adding random parameter.
+     *
+     * Returns:
+     * {Boolean} The layer was redrawn.
+     */
+    redraw: function(force) { 
+        if (force) {
+            return this.mergeNewParams({"_olSalt": Math.random()});
+        } else {
+            return OpenLayers.Layer.prototype.redraw.apply(this, []);
+        }
+    },
+    
+    /**
+     * Method: selectUrl
+     * selectUrl() implements the standard floating-point multiplicative
+     *     hash function described by Knuth, and hashes the contents of the 
+     *     given param string into a float between 0 and 1. This float is then
+     *     scaled to the size of the provided urls array, and used to select
+     *     a URL.
+     *
+     * Parameters:
+     * paramString - {String}
+     * urls - {Array(String)}
+     * 
+     * Returns:
+     * {String} An entry from the urls array, deterministically selected based
+     *          on the paramString.
+     */
+    selectUrl: function(paramString, urls) {
+        var product = 1;
+        for (var i = 0; i < paramString.length; i++) { 
+            product *= paramString.charCodeAt(i) * this.URL_HASH_FACTOR; 
+            product -= Math.floor(product); 
+        }
+        return urls[Math.floor(product * urls.length)];
+    },
+
+    /** 
+     * Method: getFullRequestString
+     * Combine url with layer's params and these newParams. 
+     *   
+     *    does checking on the serverPath variable, allowing for cases when it 
+     *     is supplied with trailing ? or &, as well as cases where not. 
+     *
+     *    return in formatted string like this:
+     *        "server?key1=value1&key2=value2&key3=value3"
+     * 
+     * WARNING: The altUrl parameter is deprecated and will be removed in 3.0.
+     *
+     * Parameters:
+     * newParams - {Object}
+     * altUrl - {String} Use this as the url instead of the layer's url
+     *   
+     * Returns: 
+     * {String}
+     */
+    getFullRequestString:function(newParams, altUrl) {
+
+        // if not altUrl passed in, use layer's url
+        var url = altUrl || this.url;
+        
+        // create a new params hashtable with all the layer params and the 
+        // new params together. then convert to string
+        var allParams = OpenLayers.Util.extend({}, this.params);
+        allParams = OpenLayers.Util.extend(allParams, newParams);
+        var paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        // if url is not a string, it should be an array of strings, 
+        // in which case we will deterministically select one of them in 
+        // order to evenly distribute requests to different urls.
+        //
+        if (url instanceof Array) {
+            url = this.selectUrl(paramsString, url);
+        }   
+ 
+        // ignore parameters that are already in the url search string
+        var urlParams = 
+            OpenLayers.Util.upperCaseObject(OpenLayers.Util.getParameters(url));
+        for(var key in allParams) {
+            if(key.toUpperCase() in urlParams) {
+                delete allParams[key];
+            }
+        }
+        paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        // requestString always starts with url
+        var requestString = url;        
+        
+        if (paramsString != "") {
+            var lastServerChar = url.charAt(url.length - 1);
+            if ((lastServerChar == "&") || (lastServerChar == "?")) {
+                requestString += paramsString;
+            } else {
+                if (url.indexOf('?') == -1) {
+                    //serverPath has no ? -- add one
+                    requestString += '?' + paramsString;
+                } else {
+                    //serverPath contains ?, so must already have 
+                    // paramsString at the end
+                    requestString += '&' + paramsString;
+                }
+            }
+        }
+        return requestString;
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.HTTPRequest"
+});
+/* ======================================================================
+    OpenLayers/Control/ZoomBox.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Handler/Box.js
+ */
+
+/**
+ * Class: OpenLayers.Control.ZoomBox
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.ZoomBox = OpenLayers.Class(OpenLayers.Control, {
+    /**
+     * Property: type
+     * {OpenLayers.Control.TYPE}
+     */
+    type: OpenLayers.Control.TYPE_TOOL,
+
+    /**
+     * Property: out
+     * {Boolean} Should the control be used for zooming out?
+     */
+    out: false,
+
+    /**
+     * Method: draw
+     */    
+    draw: function() {
+        this.handler = new OpenLayers.Handler.Box( this,
+                            {done: this.zoomBox}, {keyMask: this.keyMask} );
+    },
+
+    /**
+     * Method: zoomBox
+     *
+     * Parameters:
+     * position - {<OpenLayers.Bounds>} or {<OpenLayers.Pixel>}
+     */
+    zoomBox: function (position) {
+        if (position instanceof OpenLayers.Bounds) {
+            if (!this.out) {
+                var minXY = this.map.getLonLatFromPixel(
+                            new OpenLayers.Pixel(position.left, position.bottom));
+                var maxXY = this.map.getLonLatFromPixel(
+                            new OpenLayers.Pixel(position.right, position.top));
+                var bounds = new OpenLayers.Bounds(minXY.lon, minXY.lat,
+                                               maxXY.lon, maxXY.lat);
+            } else {
+                var pixWidth = Math.abs(position.right-position.left);
+                var pixHeight = Math.abs(position.top-position.bottom);
+                var zoomFactor = Math.min((this.map.size.h / pixHeight),
+                    (this.map.size.w / pixWidth));
+                var extent = this.map.getExtent();
+                var center = this.map.getLonLatFromPixel(
+                    position.getCenterPixel());
+                var xmin = center.lon - (extent.getWidth()/2)*zoomFactor;
+                var xmax = center.lon + (extent.getWidth()/2)*zoomFactor;
+                var ymin = center.lat - (extent.getHeight()/2)*zoomFactor;
+                var ymax = center.lat + (extent.getHeight()/2)*zoomFactor;
+                var bounds = new OpenLayers.Bounds(xmin, ymin, xmax, ymax);
+            }
+            this.map.zoomToExtent(bounds);
+        } else { // it's a pixel
+            if (!this.out) {
+                this.map.setCenter(this.map.getLonLatFromPixel(position),
+                               this.map.getZoom() + 1);
+            } else {
+                this.map.setCenter(this.map.getLonLatFromPixel(position),
+                               this.map.getZoom() - 1);
+            }
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.ZoomBox"
+});
+/* ======================================================================
+    OpenLayers/Layer/Grid.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Layer/HTTPRequest.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.Grid
+ * Base class for layers that use a lattice of tiles.  Create a new grid
+ * layer with the <OpenLayers.Layer.Grid> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.HTTPRequest>
+ */
+OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
+    
+    /**
+     * APIProperty: tileSize
+     * {<OpenLayers.Size>}
+     */
+    tileSize: null,
+    
+    /**
+     * Property: grid
+     * {Array(Array(<OpenLayers.Tile>))} This is an array of rows, each row is 
+     *     an array of tiles.
+     */
+    grid: null,
+
+    /**
+     * APIProperty: singleTile
+     * {Boolean} Moves the layer into single-tile mode, meaning that one tile 
+     *     will be loaded. The tile's size will be determined by the 'ratio'
+     *     property. When the tile is dragged such that it does not cover the 
+     *     entire viewport, it is reloaded.
+     */
+    singleTile: false,
+
+    /** APIProperty: ratio
+     *  {Float} Used only when in single-tile mode, this specifies the 
+     *          ratio of the size of the single tile to the size of the map.
+     */
+    ratio: 1.5,
+
+    /**
+     * APIProperty: buffer
+     * {Integer} Used only when in gridded mode, this specifies the number of 
+     *           extra rows and colums of tiles on each side which will
+     *           surround the minimum grid tiles to cover the map.
+     */
+    buffer: 2,
+
+    /**
+     * APIProperty: numLoadingTiles
+     * {Integer} How many tiles are still loading?
+     */
+    numLoadingTiles: 0,
+
+    /**
+     * Constructor: OpenLayers.Layer.Grid
+     * Create a new grid layer
+     *
+     * Parameters:
+     * name - {String}
+     * url - {String}
+     * params - {Object}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, params, options) {
+        OpenLayers.Layer.HTTPRequest.prototype.initialize.apply(this, 
+                                                                arguments);
+        
+        //grid layers will trigger 'tileloaded' when each new tile is 
+        // loaded, as a means of progress update to listeners.
+        // listeners can access 'numLoadingTiles' if they wish to keep track
+        // of the loading progress
+        //
+        this.events.addEventType("tileloaded");
+
+        this.grid = [];
+    },
+
+    /**
+     * APIMethod: destroy
+     * Deconstruct the layer and clear the grid.
+     */
+    destroy: function() {
+        this.clearGrid();
+        this.grid = null;
+        this.tileSize = null;
+        OpenLayers.Layer.HTTPRequest.prototype.destroy.apply(this, arguments); 
+    },
+
+    /**
+     * Method: clearGrid
+     * Go through and remove all tiles from the grid, calling
+     *    destroy() on each of them to kill circular references
+     */
+    clearGrid:function() {
+        if (this.grid) {
+            for(var iRow=0; iRow < this.grid.length; iRow++) {
+                var row = this.grid[iRow];
+                for(var iCol=0; iCol < row.length; iCol++) {
+                    var tile = row[iCol];
+                    this.removeTileMonitoringHooks(tile);
+                    tile.destroy();
+                }
+            }
+            this.grid = [];
+        }
+    },
+
+    /**
+     * APIMethod: clone
+     * Create a clone of this layer
+     *
+     * Parameters:
+     * obj - {Object} Is this ever used?
+     * 
+     * Returns:
+     * {<OpenLayers.Layer.Grid>} An exact clone of this OpenLayers.Layer.Grid
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.Grid(this.name,
+                                            this.url,
+                                            this.params,
+                                            this.options);
+        }
+
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.HTTPRequest.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+        if (this.tileSize != null) {
+            obj.tileSize = this.tileSize.clone();
+        }
+        
+        // we do not want to copy reference to grid, so we make a new array
+        obj.grid = [];
+
+        return obj;
+    },    
+
+    /**
+     * Method: moveTo
+     * This function is called whenever the map is moved. All the moving
+     * of actual 'tiles' is done by the map, but moveTo's role is to accept
+     * a bounds and make sure the data that that bounds requires is pre-loaded.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * zoomChanged - {Boolean}
+     * dragging - {Boolean}
+     */
+    moveTo:function(bounds, zoomChanged, dragging) {
+        OpenLayers.Layer.HTTPRequest.prototype.moveTo.apply(this, arguments);
+        
+        bounds = bounds || this.map.getExtent();
+
+        if (bounds != null) {
+             
+            // if grid is empty or zoom has changed, we *must* re-tile
+            var forceReTile = !this.grid.length || zoomChanged;
+
+            // total bounds of the tiles
+            var tilesBounds = this.getTilesBounds();            
+      
+            if (this.singleTile) {
+                
+                // We want to redraw whenever even the slightest part of the 
+                //  current bounds is not contained by our tile.
+                //  (thus, we do not specify partial -- its default is false)
+                if ( forceReTile || 
+                     (!dragging && !tilesBounds.containsBounds(bounds))) {
+                    this.initSingleTile(bounds);
+                }
+            } else {
+             
+                // if the bounds have changed such that they are not even 
+                //  *partially* contained by our tiles (IE user has 
+                //  programmatically panned to the other side of the earth) 
+                //  then we want to reTile (thus, partial true).  
+                //
+                if (forceReTile || !tilesBounds.containsBounds(bounds, true)) {
+                    this.initGriddedTiles(bounds);
+                } else {
+                    //we might have to shift our buffer tiles
+                    this.moveGriddedTiles(bounds);
+                }
+            }
+        }
+    },
+    
+    /**
+     * APIMethod: setTileSize
+     * Check if we are in singleTile mode and if so, set the size as a ratio
+     *     of the map size (as specified by the layer's 'ratio' property).
+     * 
+     * Parameters:
+     * size - {<OpenLayers.Size>}
+     */
+    setTileSize: function(size) { 
+        if (this.singleTile) {
+            size = this.map.getSize().clone();
+            size.h = parseInt(size.h * this.ratio);
+            size.w = parseInt(size.w * this.ratio);
+        } 
+        OpenLayers.Layer.HTTPRequest.prototype.setTileSize.apply(this, [size]);
+    },
+        
+    /**
+     * Method: getGridBounds
+     * Deprecated. This function will be removed in 3.0. Please use 
+     *     getTilesBounds() instead.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object representing the bounds of all the
+     * currently loaded tiles (including those partially or not at all seen 
+     * onscreen)
+     */
+    getGridBounds: function() {
+        var msg = "The getGridBounds() function is deprecated. It will be " +
+                  "removed in 3.0. Please use getTilesBounds() instead.";
+        OpenLayers.Console.warn(msg);
+        return this.getTilesBounds();
+    },
+
+    /**
+     * APIMethod: getTilesBounds
+     * Return the bounds of the tile grid.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object representing the bounds of all the
+     *     currently loaded tiles (including those partially or not at all seen 
+     *     onscreen).
+     */
+    getTilesBounds: function() {    
+        var bounds = null; 
+        
+        if (this.grid.length) {
+            var bottom = this.grid.length - 1;
+            var bottomLeftTile = this.grid[bottom][0];
+    
+            var right = this.grid[0].length - 1; 
+            var topRightTile = this.grid[0][right];
+    
+            bounds = new OpenLayers.Bounds(bottomLeftTile.bounds.left, 
+                                           bottomLeftTile.bounds.bottom,
+                                           topRightTile.bounds.right, 
+                                           topRightTile.bounds.top);
+            
+        }   
+        return bounds;
+    },
+
+    /**
+     * Method: initSingleTile
+     * 
+     * Parameters: 
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    initSingleTile: function(bounds) {
+
+        //determine new tile bounds
+        var center = bounds.getCenterLonLat();
+        var tileWidth = bounds.getWidth() * this.ratio;
+        var tileHeight = bounds.getHeight() * this.ratio;
+                                       
+        var tileBounds = 
+            new OpenLayers.Bounds(center.lon - (tileWidth/2),
+                                  center.lat - (tileHeight/2),
+                                  center.lon + (tileWidth/2),
+                                  center.lat + (tileHeight/2));
+  
+        var ul = new OpenLayers.LonLat(tileBounds.left, tileBounds.top);
+        var px = this.map.getLayerPxFromLonLat(ul);
+
+        if (!this.grid.length) {
+            this.grid[0] = [];
+        }
+
+        var tile = this.grid[0][0];
+        if (!tile) {
+            tile = this.addTile(tileBounds, px);
+            
+            this.addTileMonitoringHooks(tile);
+            tile.draw();
+            this.grid[0][0] = tile;
+        } else {
+            tile.moveTo(tileBounds, px);
+        }           
+        
+        //remove all but our single tile
+        this.removeExcessTiles(1,1);
+    },
+
+    /** 
+     * Method: calculateGridLayout
+     * Generate parameters for the grid layout. This  
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bound>}
+     * extent - {<OpenLayers.Bounds>}
+     * resolution - {Number}
+     *
+     * Returns:
+     * Object containing properties tilelon, tilelat, tileoffsetlat,
+     * tileoffsetlat, tileoffsetx, tileoffsety
+     */
+    calculateGridLayout: function(bounds, extent, resolution) {
+        var tilelon = resolution * this.tileSize.w;
+        var tilelat = resolution * this.tileSize.h;
+        
+        var offsetlon = bounds.left - extent.left;
+        var tilecol = Math.floor(offsetlon/tilelon) - this.buffer;
+        var tilecolremain = offsetlon/tilelon - tilecol;
+        var tileoffsetx = -tilecolremain * this.tileSize.w;
+        var tileoffsetlon = extent.left + tilecol * tilelon;
+        
+        var offsetlat = bounds.top - (extent.bottom + tilelat);  
+        var tilerow = Math.ceil(offsetlat/tilelat) + this.buffer;
+        var tilerowremain = tilerow - offsetlat/tilelat;
+        var tileoffsety = -tilerowremain * this.tileSize.h;
+        var tileoffsetlat = extent.bottom + tilerow * tilelat;
+        
+        return { 
+          tilelon: tilelon, tilelat: tilelat,
+          tileoffsetlon: tileoffsetlon, tileoffsetlat: tileoffsetlat,
+          tileoffsetx: tileoffsetx, tileoffsety: tileoffsety
+        };
+
+    },
+
+    /**
+     * Method: initGriddedTiles
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    initGriddedTiles:function(bounds) {
+        
+        // work out mininum number of rows and columns; this is the number of
+        // tiles required to cover the viewport plus at least one for panning
+
+        var viewSize = this.map.getSize();
+        var minRows = Math.ceil(viewSize.h/this.tileSize.h) + 
+                      Math.max(1, 2 * this.buffer);
+        var minCols = Math.ceil(viewSize.w/this.tileSize.w) +
+                      Math.max(1, 2 * this.buffer);
+        
+        var extent = this.map.getMaxExtent();
+        var resolution = this.map.getResolution();
+        
+        var tileLayout = this.calculateGridLayout(bounds, extent, resolution);
+
+        var tileoffsetx = Math.round(tileLayout.tileoffsetx); // heaven help us
+        var tileoffsety = Math.round(tileLayout.tileoffsety);
+
+        var tileoffsetlon = tileLayout.tileoffsetlon;
+        var tileoffsetlat = tileLayout.tileoffsetlat;
+        
+        var tilelon = tileLayout.tilelon;
+        var tilelat = tileLayout.tilelat;
+
+        this.origin = new OpenLayers.Pixel(tileoffsetx, tileoffsety);
+
+        var startX = tileoffsetx; 
+        var startLon = tileoffsetlon;
+
+        var rowidx = 0;
+        
+        var layerContainerDivLeft = parseInt(this.map.layerContainerDiv.style.left);
+        var layerContainerDivTop = parseInt(this.map.layerContainerDiv.style.top);
+        
+    
+        do {
+            var row = this.grid[rowidx++];
+            if (!row) {
+                row = [];
+                this.grid.push(row);
+            }
+
+            tileoffsetlon = startLon;
+            tileoffsetx = startX;
+            var colidx = 0;
+ 
+            do {
+                var tileBounds = 
+                    new OpenLayers.Bounds(tileoffsetlon, 
+                                          tileoffsetlat, 
+                                          tileoffsetlon + tilelon,
+                                          tileoffsetlat + tilelat);
+
+                var x = tileoffsetx;
+                x -= layerContainerDivLeft;
+
+                var y = tileoffsety;
+                y -= layerContainerDivTop;
+
+                var px = new OpenLayers.Pixel(x, y);
+                var tile = row[colidx++];
+                if (!tile) {
+                    tile = this.addTile(tileBounds, px);
+                    this.addTileMonitoringHooks(tile);
+                    row.push(tile);
+                } else {
+                    tile.moveTo(tileBounds, px, false);
+                }
+     
+                tileoffsetlon += tilelon;       
+                tileoffsetx += this.tileSize.w;
+            } while ((tileoffsetlon <= bounds.right + tilelon * this.buffer)
+                     || colidx < minCols)  
+             
+            tileoffsetlat -= tilelat;
+            tileoffsety += this.tileSize.h;
+        } while((tileoffsetlat >= bounds.bottom - tilelat * this.buffer)
+                || rowidx < minRows)
+        
+        //shave off exceess rows and colums
+        this.removeExcessTiles(rowidx, colidx);
+
+        //now actually draw the tiles
+        this.spiralTileLoad();
+    },
+    
+    /**
+     * Method: spiralTileLoad
+     *   Starts at the top right corner of the grid and proceeds in a spiral 
+     *    towards the center, adding tiles one at a time to the beginning of a 
+     *    queue. 
+     * 
+     *   Once all the grid's tiles have been added to the queue, we go back 
+     *    and iterate through the queue (thus reversing the spiral order from 
+     *    outside-in to inside-out), calling draw() on each tile. 
+     */
+    spiralTileLoad: function() {
+        var tileQueue = [];
+ 
+        var directions = ["right", "down", "left", "up"];
+
+        var iRow = 0;
+        var iCell = -1;
+        var direction = OpenLayers.Util.indexOf(directions, "right");
+        var directionsTried = 0;
+        
+        while( directionsTried < directions.length) {
+
+            var testRow = iRow;
+            var testCell = iCell;
+
+            switch (directions[direction]) {
+                case "right":
+                    testCell++;
+                    break;
+                case "down":
+                    testRow++;
+                    break;
+                case "left":
+                    testCell--;
+                    break;
+                case "up":
+                    testRow--;
+                    break;
+            } 
+    
+            // if the test grid coordinates are within the bounds of the 
+            //  grid, get a reference to the tile.
+            var tile = null;
+            if ((testRow < this.grid.length) && (testRow >= 0) &&
+                (testCell < this.grid[0].length) && (testCell >= 0)) {
+                tile = this.grid[testRow][testCell];
+            }
+            
+            if ((tile != null) && (!tile.queued)) {
+                //add tile to beginning of queue, mark it as queued.
+                tileQueue.unshift(tile);
+                tile.queued = true;
+                
+                //restart the directions counter and take on the new coords
+                directionsTried = 0;
+                iRow = testRow;
+                iCell = testCell;
+            } else {
+                //need to try to load a tile in a different direction
+                direction = (direction + 1) % 4;
+                directionsTried++;
+            }
+        } 
+        
+        // now we go through and draw the tiles in forward order
+        for(var i=0; i < tileQueue.length; i++) {
+            var tile = tileQueue[i];
+            tile.draw();
+            //mark tile as unqueued for the next time (since tiles are reused)
+            tile.queued = false;       
+        }
+    },
+
+    /**
+     * APIMethod: addTile
+     * Gives subclasses of Grid the opportunity to create an 
+     * OpenLayer.Tile of their choosing. The implementer should initialize 
+     * the new tile and take whatever steps necessary to display it.
+     *
+     * Parameters
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.Tile>} The added OpenLayers.Tile
+     */
+    addTile:function(bounds, position) {
+        // Should be implemented by subclasses
+    },
+    
+    /** 
+     * Method: addTileMonitoringHooks
+     * This function takes a tile as input and adds the appropriate hooks to 
+     *     the tile so that the layer can keep track of the loading tiles.
+     * 
+     * Parameters: 
+     * tile - {<OpenLayers.Tile>}
+     */
+    addTileMonitoringHooks: function(tile) {
+        
+        tile.onLoadStart = function() {
+            //if that was first tile then trigger a 'loadstart' on the layer
+            if (this.numLoadingTiles == 0) {
+                this.events.triggerEvent("loadstart");
+            }
+            this.numLoadingTiles++;
+        };
+        tile.events.register("loadstart", this, tile.onLoadStart);
+      
+        tile.onLoadEnd = function() {
+            this.numLoadingTiles--;
+            this.events.triggerEvent("tileloaded");
+            //if that was the last tile, then trigger a 'loadend' on the layer
+            if (this.numLoadingTiles == 0) {
+                this.events.triggerEvent("loadend");
+            }
+        };
+        tile.events.register("loadend", this, tile.onLoadEnd);
+        tile.events.register("unload", this, tile.onLoadEnd);
+    },
+
+    /** 
+     * Method: removeTileMonitoringHooks
+     * This function takes a tile as input and removes the tile hooks 
+     *     that were added in addTileMonitoringHooks()
+     * 
+     * Parameters: 
+     * tile - {<OpenLayers.Tile>}
+     */
+    removeTileMonitoringHooks: function(tile) {
+        tile.unload();
+        tile.events.un({
+            "loadstart": tile.onLoadStart,
+            "loadend": tile.onLoadEnd,
+            "unload": tile.onLoadEnd,
+            scope: this
+        });
+    },
+    
+    /**
+     * Method: moveGriddedTiles
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    moveGriddedTiles: function(bounds) {
+        var buffer = this.buffer || 1;
+        while (true) {
+            var tlLayer = this.grid[0][0].position;
+            var tlViewPort = 
+                this.map.getViewPortPxFromLayerPx(tlLayer);
+            if (tlViewPort.x > -this.tileSize.w * (buffer - 1)) {
+                this.shiftColumn(true);
+            } else if (tlViewPort.x < -this.tileSize.w * buffer) {
+                this.shiftColumn(false);
+            } else if (tlViewPort.y > -this.tileSize.h * (buffer - 1)) {
+                this.shiftRow(true);
+            } else if (tlViewPort.y < -this.tileSize.h * buffer) {
+                this.shiftRow(false);
+            } else {
+                break;
+            }
+        };
+    },
+
+    /**
+     * Method: shiftRow
+     * Shifty grid work
+     *
+     * Parameters:
+     * prepend - {Boolean} if true, prepend to beginning.
+     *                          if false, then append to end
+     */
+    shiftRow:function(prepend) {
+        var modelRowIndex = (prepend) ? 0 : (this.grid.length - 1);
+        var grid = this.grid;
+        var modelRow = grid[modelRowIndex];
+
+        var resolution = this.map.getResolution();
+        var deltaY = (prepend) ? -this.tileSize.h : this.tileSize.h;
+        var deltaLat = resolution * -deltaY;
+
+        var row = (prepend) ? grid.pop() : grid.shift();
+
+        for (var i=0; i < modelRow.length; i++) {
+            var modelTile = modelRow[i];
+            var bounds = modelTile.bounds.clone();
+            var position = modelTile.position.clone();
+            bounds.bottom = bounds.bottom + deltaLat;
+            bounds.top = bounds.top + deltaLat;
+            position.y = position.y + deltaY;
+            row[i].moveTo(bounds, position);
+        }
+
+        if (prepend) {
+            grid.unshift(row);
+        } else {
+            grid.push(row);
+        }
+    },
+
+    /**
+     * Method: shiftColumn
+     * Shift grid work in the other dimension
+     *
+     * Parameters:
+     * prepend - {Boolean} if true, prepend to beginning.
+     *                          if false, then append to end
+     */
+    shiftColumn: function(prepend) {
+        var deltaX = (prepend) ? -this.tileSize.w : this.tileSize.w;
+        var resolution = this.map.getResolution();
+        var deltaLon = resolution * deltaX;
+
+        for (var i=0; i<this.grid.length; i++) {
+            var row = this.grid[i];
+            var modelTileIndex = (prepend) ? 0 : (row.length - 1);
+            var modelTile = row[modelTileIndex];
+            
+            var bounds = modelTile.bounds.clone();
+            var position = modelTile.position.clone();
+            bounds.left = bounds.left + deltaLon;
+            bounds.right = bounds.right + deltaLon;
+            position.x = position.x + deltaX;
+
+            var tile = prepend ? this.grid[i].pop() : this.grid[i].shift();
+            tile.moveTo(bounds, position);
+            if (prepend) {
+                row.unshift(tile);
+            } else {
+                row.push(tile);
+            }
+        }
+    },
+    
+    /**
+     * Method: removeExcessTiles
+     * When the size of the map or the buffer changes, we may need to
+     *     remove some excess rows and columns.
+     * 
+     * Parameters:
+     * rows - {Integer} Maximum number of rows we want our grid to have.
+     * colums - {Integer} Maximum number of columns we want our grid to have.
+     */
+    removeExcessTiles: function(rows, columns) {
+        
+        // remove extra rows
+        while (this.grid.length > rows) {
+            var row = this.grid.pop();
+            for (var i=0, l=row.length; i<l; i++) {
+                var tile = row[i];
+                this.removeTileMonitoringHooks(tile);
+                tile.destroy();
+            }
+        }
+        
+        // remove extra columns
+        while (this.grid[0].length > columns) {
+            for (var i=0, l=this.grid.length; i<l; i++) {
+                var row = this.grid[i];
+                var tile = row.pop();
+                this.removeTileMonitoringHooks(tile);
+                tile.destroy();
+            }
+        }
+    },
+
+    /**
+     * Method: onMapResize
+     * For singleTile layers, this will set a new tile size according to the
+     * dimensions of the map pane.
+     */
+    onMapResize: function() {
+        if (this.singleTile) {
+            this.clearGrid();
+            this.setTileSize();
+        }
+    },
+    
+    /**
+     * APIMethod: getTileBounds
+     * Returns The tile bounds for a layer given a pixel location.
+     *
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>} The location in the viewport.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} Bounds of the tile at the given pixel location.
+     */
+    getTileBounds: function(viewPortPx) {
+        var maxExtent = this.map.getMaxExtent();
+        var resolution = this.getResolution();
+        var tileMapWidth = resolution * this.tileSize.w;
+        var tileMapHeight = resolution * this.tileSize.h;
+        var mapPoint = this.getLonLatFromViewPortPx(viewPortPx);
+        var tileLeft = maxExtent.left + (tileMapWidth *
+                                         Math.floor((mapPoint.lon -
+                                                     maxExtent.left) /
+                                                    tileMapWidth));
+        var tileBottom = maxExtent.bottom + (tileMapHeight *
+                                             Math.floor((mapPoint.lat -
+                                                         maxExtent.bottom) /
+                                                        tileMapHeight));
+        return new OpenLayers.Bounds(tileLeft, tileBottom,
+                                     tileLeft + tileMapWidth,
+                                     tileBottom + tileMapHeight);
+    },
+    
+    CLASS_NAME: "OpenLayers.Layer.Grid"
+});
+/* ======================================================================
+    OpenLayers/Control/Navigation.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control/ZoomBox.js
+ * @requires OpenLayers/Control/DragPan.js
+ * @requires OpenLayers/Handler/MouseWheel.js
+ * @requires OpenLayers/Handler/Click.js
+ */
+
+/**
+ * Class: OpenLayers.Control.Navigation
+ * The navigation control handles map browsing with mouse events (dragging,
+ *     double-clicking, and scrolling the wheel).  Create a new navigation 
+ *     control with the <OpenLayers.Control.Navigation> control.  
+ * 
+ *     Note that this control is added to the map by default (if no controls 
+ *     array is sent in the options object to the <OpenLayers.Map> 
+ *     constructor).
+ * 
+ * Inherits:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * Property: dragPan
+     * {<OpenLayers.Control.DragPan>} 
+     */
+    dragPan: null,
+
+    /** 
+     * Property: zoomBox
+     * {<OpenLayers.Control.ZoomBox>}
+     */
+    zoomBox: null,
+
+    /**
+     * APIProperty: zoomWheelEnabled
+     * {Boolean} Whether the mousewheel should zoom the map
+     */
+    zoomWheelEnabled: true, 
+
+    /**
+     * Constructor: OpenLayers.Control.Navigation
+     * Create a new navigation control
+     * 
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *                    the control
+     */
+    initialize: function(options) {
+        this.handlers = {};
+        OpenLayers.Control.prototype.initialize.apply(this, arguments);
+    },
+
+    /**
+     * Method: destroy
+     * The destroy method is used to perform any clean up before the control
+     * is dereferenced.  Typically this is where event listeners are removed
+     * to prevent memory leaks.
+     */
+    destroy: function() {
+        this.deactivate();
+
+        if (this.dragPan) {
+            this.dragPan.destroy();
+        }
+        this.dragPan = null;
+
+        if (this.zoomBox) {
+            this.zoomBox.destroy();
+        }
+        this.zoomBox = null;
+        OpenLayers.Control.prototype.destroy.apply(this,arguments);
+    },
+    
+    /**
+     * Method: activate
+     */
+    activate: function() {
+        this.dragPan.activate();
+        if (this.zoomWheelEnabled) {
+            this.handlers.wheel.activate();
+        }    
+        this.handlers.click.activate();
+        this.zoomBox.activate();
+        return OpenLayers.Control.prototype.activate.apply(this,arguments);
+    },
+
+    /**
+     * Method: deactivate
+     */
+    deactivate: function() {
+        this.zoomBox.deactivate();
+        this.dragPan.deactivate();
+        this.handlers.click.deactivate();
+        this.handlers.wheel.deactivate();
+        return OpenLayers.Control.prototype.deactivate.apply(this,arguments);
+    },
+    
+    /**
+     * Method: draw
+     */
+    draw: function() {
+        this.handlers.click = new OpenLayers.Handler.Click(this, 
+                                        { 'dblclick': this.defaultDblClick },
+                                        {
+                                          'double': true, 
+                                          'stopDouble': true
+                                        });
+        this.dragPan = new OpenLayers.Control.DragPan({map: this.map});
+        this.zoomBox = new OpenLayers.Control.ZoomBox(
+                    {map: this.map, keyMask: OpenLayers.Handler.MOD_SHIFT});
+        this.dragPan.draw();
+        this.zoomBox.draw();
+        this.handlers.wheel = new OpenLayers.Handler.MouseWheel(
+                                    this, {"up"  : this.wheelUp,
+                                           "down": this.wheelDown} );
+        this.activate();
+    },
+
+    /**
+     * Method: defaultDblClick 
+     * 
+     * Parameters:
+     * evt - {Event} 
+     */
+    defaultDblClick: function (evt) {
+        var newCenter = this.map.getLonLatFromViewPortPx( evt.xy ); 
+        this.map.setCenter(newCenter, this.map.zoom + 1);
+    },
+
+    /**
+     * Method: wheelChange  
+     *
+     * Parameters:
+     * evt - {Event}
+     * deltaZ - {Integer}
+     */
+    wheelChange: function(evt, deltaZ) {
+        var newZoom = this.map.getZoom() + deltaZ;
+        if (!this.map.isValidZoomLevel(newZoom)) {
+            return;
+        }
+        var size    = this.map.getSize();
+        var deltaX  = size.w/2 - evt.xy.x;
+        var deltaY  = evt.xy.y - size.h/2;
+        var newRes  = this.map.baseLayer.getResolutionForZoom(newZoom);
+        var zoomPoint = this.map.getLonLatFromPixel(evt.xy);
+        var newCenter = new OpenLayers.LonLat(
+                            zoomPoint.lon + deltaX * newRes,
+                            zoomPoint.lat + deltaY * newRes );
+        this.map.setCenter( newCenter, newZoom );
+    },
+
+    /** 
+     * Method: wheelUp
+     * User spun scroll wheel up
+     * 
+     * Parameters:
+     * evt - {Event}
+     */
+    wheelUp: function(evt) {
+        this.wheelChange(evt, 1);
+    },
+
+    /** 
+     * Method: wheelDown
+     * User spun scroll wheel down
+     * 
+     * Parameters:
+     * evt - {Event}
+     */
+    wheelDown: function(evt) {
+        this.wheelChange(evt, -1);
+    },
+    
+    /**
+     * Method: disableZoomWheel
+     */
+    
+    disableZoomWheel : function() {
+        this.zoomWheelEnabled = false;
+        this.handlers.wheel.deactivate();       
+    },
+    
+    /**
+     * Method: enableZoomWheel
+     */
+    
+    enableZoomWheel : function() {
+        this.zoomWheelEnabled = true;
+        if (this.active) {
+            this.handlers.wheel.activate();
+        }    
+    },
+
+    CLASS_NAME: "OpenLayers.Control.Navigation"
+});
+/* ======================================================================
+    OpenLayers/Layer/MapGuide.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * licence.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Ajax.js
+ * @requires OpenLayers/Layer/Grid.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.MapGuide
+ * Instances of OpenLayers.Layer.MapGuide are used to display
+ * data from a MapGuide OS instance.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.Grid>
+ */
+OpenLayers.Layer.MapGuide = OpenLayers.Class(OpenLayers.Layer.Grid, {
+
+    /** 
+     * APIProperty: isBaseLayer
+     * {Boolean} Treat this layer as a base layer.  Default is true.
+     **/
+    isBaseLayer: true,
+    
+    /** 
+     * APIProperty: singleTile
+     * {Boolean} use tile server or request single tile image. Note that using
+     *    singleTile *and* isBaseLayer false is *not recommend*: it uses synchronous
+     *    XMLHttpRequests to load tiles, and this will *lock up users browsers*
+     *    during requests.
+     **/
+    singleTile: false,
+    
+    /**
+     * Constant: TILE_PARAMS
+     * {Object} Hashtable of default parameter key/value pairs for tiled layer
+     */
+    TILE_PARAMS: {
+         operation: 'GETTILEIMAGE',
+         version: '1.2.0'
+    },
+
+    /**
+     * Constant: SINGLE_TILE_PARAMS
+     * {Object} Hashtable of default parameter key/value pairs for untiled layer
+     */
+    SINGLE_TILE_PARAMS: {
+        operation: 'GETMAPIMAGE',
+        format: 'PNG',
+        locale: 'en',
+        clip: '1',
+        version: '1.0.0'
+    },
+    
+    /** 
+     * Property: defaultSize
+     * {<OpenLayers.Size>} Tile size as produced by MapGuide server
+     **/
+    defaultSize: new OpenLayers.Size(300,300),
+
+    /**
+     * Constructor: OpenLayers.Layer.MapGuide
+     * Create a new Mapguide layer, either tiled or untiled.  
+     *
+     * For tiled layers, the 'groupName' and 'mapDefnition' options 
+     * must be specified as options.
+     *
+     * For untiled layers, specify either combination of 'mapName' and
+     * 'session', or 'mapDefinition' and 'locale'.
+     *
+     * Parameters:
+     * name - {String} Name of the layer displayed in the interface
+     * url - {String} Location of the MapGuide mapagent executable
+     *            (e.g. http://localhost:8008/mapguide/mapagent/mapagent.fcgi)
+     * params - {Object} hashtable of additional parameters to use. Some
+     *     parameters may require additional code on the serer. The ones that
+     *     you may want to use are: 
+     *   - mapDefinition - {String} The MapGuide resource definition
+     *            (e.g. Library://Samples/Gmap/Maps/gmapTiled.MapDefinition)
+     *   - locale - Locale setting 
+     *            (for untiled overlays layers only)
+     *   - mapName - {String} Name of the map as stored in the MapGuide session.
+     *          (for untiled layers with a session parameter only)
+     *   - session - { String} MapGuide session ID 
+     *            (for untiled overlays layers only)
+     *   - basemaplayergroupname - {String} GroupName for tiled MapGuide layers only
+     *   - format - Image format to be returned (for untiled overlay layers only)
+     *   - showLayers - {String} A comma separated list of GUID's for the
+     *       layers to display eg: 'cvc-xcv34,453-345-345sdf'.
+     *   - hideLayers - {String} A comma separated list of GUID's for the
+     *       layers to hide eg: 'cvc-xcv34,453-345-345sdf'.
+     *   - showGroups - {String} A comma separated list of GUID's for the
+     *       groups to display eg: 'cvc-xcv34,453-345-345sdf'.
+     *   - hideGroups - {String} A comma separated list of GUID's for the
+     *       groups to hide eg: 'cvc-xcv34,453-345-345sdf'
+     *   - selectionXml - {String} A selection xml string Some server plumbing
+     *       is required to read such a value.
+     * options - {Ojbect} Hashtable of extra options to tag onto the layer; 
+     *          will vary depending if tiled or untiled maps are being requested
+     */
+    initialize: function(name, url, params, options) {
+        
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, arguments);
+        
+        // unless explicitly set in options, if the layer is transparent, 
+        // it will be an overlay
+        if (options == null || options.isBaseLayer == null) {
+            this.isBaseLayer = ((this.transparent != "true") && 
+                                (this.transparent != true));
+        }
+
+        //initialize for untiled layers
+        if (this.singleTile) {
+            OpenLayers.Util.applyDefaults(
+                           this.params,
+                           this.SINGLE_TILE_PARAMS
+                           );
+        } else {
+            //initialize for tiled layers
+            OpenLayers.Util.applyDefaults(
+                           this.params,
+                           this.TILE_PARAMS
+                           );
+            this.setTileSize(this.defaultSize); 
+        }
+    },
+
+    /**
+     * Method: clone
+     * Create a clone of this layer
+     *
+     * Returns:
+     * {<OpenLayers.Layer.MapGuide>} An exact clone of this layer
+     */
+    clone: function (obj) {
+      if (obj == null) {
+            obj = new OpenLayers.Layer.MapGuide(this.name,
+                                           this.url,
+                                           this.params,
+                                           this.options);
+      }
+      //get all additions from superclasses
+      obj = OpenLayers.Layer.Grid.prototype.clone.apply(this, [obj]);
+
+      return obj;
+    },
+
+    /**
+     * Method: addTile
+     * Creates a tile, initializes it, and adds it to the layer div. 
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Tile.Image>} The added OpenLayers.Tile.Image
+     */
+    addTile:function(bounds,position) {
+        return new OpenLayers.Tile.Image(this, position, bounds, 
+                                         null, this.tileSize);
+    },
+
+    /**
+     * Method: getURL
+     * Return a query string for this layer
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} A bounds representing the bbox 
+     *                                for the request
+     *
+     * Returns:
+     * {String} A string with the layer's url and parameters and also 
+     *          the passed-in bounds and appropriate tile size specified 
+     *          as parameters.
+     */
+    getURL: function (bounds) {
+        var url;
+        var center = bounds.getCenterLonLat();
+        var mapSize = this.map.getCurrentSize();
+
+        if (this.singleTile) {
+          //set up the call for GETMAPIMAGE or GETDYNAMICMAPOVERLAY
+          var params = {};
+          params.setdisplaydpi = OpenLayers.DOTS_PER_INCH;   
+          params.setdisplayheight = mapSize.h*this.ratio;
+          params.setdisplaywidth = mapSize.w*this.ratio;
+          params.setviewcenterx = center.lon;
+          params.setviewcentery = center.lat;
+          params.setviewscale = this.map.getScale();
+          
+          if (!this.isBaseLayer) {
+            // in this case the main image operation is remapped to this
+            this.params.operation = "GETDYNAMICMAPOVERLAYIMAGE";
+            
+            //but we first need to call GETVISIBLEMAPEXTENT to set the extent
+            var getVisParams = {};
+            getVisParams.operation = "GETVISIBLEMAPEXTENT";
+            getVisParams.version = "1.0.0";
+            getVisParams.session = this.params.session;
+            getVisParams.mapName = this.params.mapName;
+            getVisParams.format = 'text/xml';
+            getVisParams = OpenLayers.Util.extend(getVisParams, params);
+                
+            new OpenLayers.Ajax.Request(this.url, 
+                  { parameters: getVisParams,
+                    method: 'get',
+                    asynchronous: false   //must be synchronous call to return control here
+                  });
+          }
+          
+          //construct the full URL
+          url = this.getFullRequestString( params );
+        } else {
+
+          //tiled version
+          var currentRes = this.map.getResolution();
+          var colidx = Math.floor((bounds.left-this.maxExtent.left)/currentRes);
+          colidx = Math.round(colidx/this.tileSize.w);
+          var rowidx = Math.floor((this.maxExtent.top-bounds.top)/currentRes);
+          rowidx = Math.round(rowidx/this.tileSize.h);
+
+          url = this.getFullRequestString(
+                       {
+                           tilecol: colidx,
+                           tilerow: rowidx,
+                           scaleindex: this.resolutions.length - this.map.zoom - 1
+                        });
+         }
+        
+        return url;
+    },
+
+    /**
+     * Method: getFullRequestString
+     * getFullRequestString on MapGuide layers is special, because we 
+     * do a regular expression replace on ',' in parameters to '+'.
+     * This is why it is subclassed here.
+     *
+     * Parameters:
+     * altUrl - {String} Alternative base URL to use.
+     *
+     * Returns:
+     * {String} A string with the layer's url appropriately encoded for MapGuide
+     */
+    getFullRequestString:function(newParams, altUrl) {
+        // use layer's url unless altUrl passed in
+        var url = (altUrl == null) ? this.url : altUrl;
+        
+        // if url is not a string, it should be an array of strings, 
+        //  in which case we will randomly select one of them in order
+        //  to evenly distribute requests to different urls.
+        if (typeof url == "object") {
+            url = url[Math.floor(Math.random()*url.length)];
+        }   
+        // requestString always starts with url
+        var requestString = url;        
+
+        // create a new params hashtable with all the layer params and the 
+        // new params together. then convert to string
+        var allParams = OpenLayers.Util.extend({}, this.params);
+        allParams = OpenLayers.Util.extend(allParams, newParams);
+        // ignore parameters that are already in the url search string
+        var urlParams = OpenLayers.Util.upperCaseObject(
+                            OpenLayers.Util.getArgs(url));
+        for(var key in allParams) {
+            if(key.toUpperCase() in urlParams) {
+                delete allParams[key];
+            }
+        }
+        var paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        /* MapGuide needs '+' seperating things like bounds/height/width.
+           Since typically this is URL encoded, we use a slight hack: we
+           depend on the list-like functionality of getParameterString to
+           leave ',' only in the case of list items (since otherwise it is
+           encoded) then do a regular expression replace on the , characters
+           to '+' */
+        paramsString = paramsString.replace(/,/g, "+");
+        
+        if (paramsString != "") {
+            var lastServerChar = url.charAt(url.length - 1);
+            if ((lastServerChar == "&") || (lastServerChar == "?")) {
+                requestString += paramsString;
+            } else {
+                if (url.indexOf('?') == -1) {
+                    //serverPath has no ? -- add one
+                    requestString += '?' + paramsString;
+                } else {
+                    //serverPath contains ?, so must already have paramsString at the end
+                    requestString += '&' + paramsString;
+                }
+            }
+        }
+        return requestString;
+    },
+
+    /** 
+     * Method: calculateGridLayout
+     * Generate parameters for the grid layout. This  
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bound>}
+     * extent - {<OpenLayers.Bounds>}
+     * resolution - {Number}
+     *
+     * Returns:
+     * Object containing properties tilelon, tilelat, tileoffsetlat,
+     * tileoffsetlat, tileoffsetx, tileoffsety
+     */
+    calculateGridLayout: function(bounds, extent, resolution) {
+        var tilelon = resolution * this.tileSize.w;
+        var tilelat = resolution * this.tileSize.h;
+        
+        var offsetlon = bounds.left - extent.left;
+        var tilecol = Math.floor(offsetlon/tilelon) - this.buffer;
+        var tilecolremain = offsetlon/tilelon - tilecol;
+        var tileoffsetx = -tilecolremain * this.tileSize.w;
+        var tileoffsetlon = extent.left + tilecol * tilelon;
+        
+        var offsetlat = extent.top - bounds.top + tilelat; 
+        var tilerow = Math.floor(offsetlat/tilelat) - this.buffer;
+        var tilerowremain = tilerow - offsetlat/tilelat;
+        var tileoffsety = tilerowremain * this.tileSize.h;
+        var tileoffsetlat = extent.top - tilelat*tilerow;
+        
+        return { 
+          tilelon: tilelon, tilelat: tilelat,
+          tileoffsetlon: tileoffsetlon, tileoffsetlat: tileoffsetlat,
+          tileoffsetx: tileoffsetx, tileoffsety: tileoffsety
+        };
+    },
+    
+    CLASS_NAME: "OpenLayers.Layer.MapGuide"
+});
+/* ======================================================================
+    OpenLayers/Layer/MapServer.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Layer/Grid.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.MapServer
+ * Instances of OpenLayers.Layer.MapServer are used to display
+ * data from a MapServer CGI instance.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.Grid>
+ */
+OpenLayers.Layer.MapServer = OpenLayers.Class(OpenLayers.Layer.Grid, {
+
+    /**
+     * Constant: DEFAULT_PARAMS
+     * {Object} Hashtable of default parameter key/value pairs 
+     */
+    DEFAULT_PARAMS: {
+        mode: "map",
+        map_imagetype: "png"
+    },
+
+    /**
+     * Constructor: OpenLayers.Layer.MapServer
+     * Create a new MapServer layer object
+     *
+     * Parameters:
+     * name - {String} A name for the layer
+     * url - {String} Base url for the MapServer CGI
+     *       (e.g. http://www2.dmsolutions.ca/cgi-bin/mapserv)
+     * params - {Object} An object with key/value pairs representing the
+     *          GetMap query string parameters and parameter values.
+     * options - {Ojbect} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, params, options) {
+        var newArguments = [];
+        newArguments.push(name, url, params, options);
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, newArguments);
+
+        if (arguments.length > 0) {
+            OpenLayers.Util.applyDefaults(
+                           this.params,
+                           this.DEFAULT_PARAMS
+                           );
+        }
+
+        // unless explicitly set in options, if the layer is transparent, 
+        // it will be an overlay
+        if (options == null || options.isBaseLayer == null) {
+            this.isBaseLayer = ((this.params.transparent != "true") && 
+                                (this.params.transparent != true));
+        }
+    },
+
+    /**
+     * Method: clone
+     * Create a clone of this layer
+     *
+     * Returns:
+     * {<OpenLayers.Layer.MapServer>} An exact clone of this layer
+     */
+    clone: function (obj) {
+        if (obj == null) {
+            obj = new OpenLayers.Layer.MapServer(this.name,
+                                           this.url,
+                                           this.params,
+                                           this.options);
+        }
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.Grid.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+
+        return obj;
+    },
+
+    /**
+     * Method: addTile
+     * Creates a tile, initializes it, and adds it to the layer div. 
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Tile.Image>} The added OpenLayers.Tile.Image
+     */
+    addTile:function(bounds,position) {
+        return new OpenLayers.Tile.Image(this, position, bounds, 
+                                         null, this.tileSize);
+    },
+    
+    /**
+     * Method: getURL
+     * Return a query string for this layer
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} A bounds representing the bbox 
+     *                                for the request
+     *
+     * Returns:
+     * {String} A string with the layer's url and parameters and also 
+     *          the passed-in bounds and appropriate tile size specified 
+     *          as parameters.
+     */
+    getURL: function (bounds) {
+        bounds = this.adjustBounds(bounds);
+        // Make a list, so that getFullRequestString uses literal "," 
+        var extent = [bounds.left, bounds. bottom, bounds.right, bounds.top];
+
+        var imageSize = this.getImageSize(); 
+        
+        // make lists, so that literal ','s are used 
+        var url = this.getFullRequestString(
+                     {mapext:   extent,
+                      imgext:   extent,
+                      map_size: [imageSize.w, imageSize.h],
+                      imgx:     imageSize.w / 2,
+                      imgy:     imageSize.h / 2,
+                      imgxy:    [imageSize.w, imageSize.h]
+                      });
+        
+        return url;
+    },
+    
+    /** 
+     * Method: getFullRequestString
+     * combine the layer's url with its params and these newParams. 
+     *   
+     * Parameter:
+     * newParams - {Object} New parameters that should be added to the 
+     *                      request string.
+     * altUrl - {String} (optional) Replace the URL in the full request  
+     *                              string with the provided URL.
+     * 
+     * Returns: 
+     * {String} A string with the layer's url and parameters embedded in it.
+     */
+    getFullRequestString:function(newParams, altUrl) {
+        // use layer's url unless altUrl passed in
+        var url = (altUrl == null) ? this.url : altUrl;
+        
+        // create a new params hashtable with all the layer params and the 
+        // new params together. then convert to string
+        var allParams = OpenLayers.Util.extend({}, this.params);
+        allParams = OpenLayers.Util.extend(allParams, newParams);
+        var paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        // if url is not a string, it should be an array of strings, 
+        // in which case we will deterministically select one of them in 
+        // order to evenly distribute requests to different urls.
+        if (url instanceof Array) {
+            url = this.selectUrl(paramsString, url);
+        }   
+        
+        // ignore parameters that are already in the url search string
+        var urlParams = OpenLayers.Util.upperCaseObject(
+                            OpenLayers.Util.getParameters(url));
+        for(var key in allParams) {
+            if(key.toUpperCase() in urlParams) {
+                delete allParams[key];
+            }
+        }
+        paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        // requestString always starts with url
+        var requestString = url;        
+
+        // MapServer needs '+' seperating things like bounds/height/width.
+        //   Since typically this is URL encoded, we use a slight hack: we
+        //  depend on the list-like functionality of getParameterString to
+        //  leave ',' only in the case of list items (since otherwise it is
+        //  encoded) then do a regular expression replace on the , characters
+        //  to '+'
+        //
+        paramsString = paramsString.replace(/,/g, "+");
+        
+        if (paramsString != "") {
+            var lastServerChar = url.charAt(url.length - 1);
+            if ((lastServerChar == "&") || (lastServerChar == "?")) {
+                requestString += paramsString;
+            } else {
+                if (url.indexOf('?') == -1) {
+                    //serverPath has no ? -- add one
+                    requestString += '?' + paramsString;
+                } else {
+                    //serverPath contains ?, so must already have paramsString at the end
+                    requestString += '&' + paramsString;
+                }
+            }
+        }
+        return requestString;
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.MapServer"
+});
+/* ======================================================================
+    OpenLayers/Layer/WMS.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
+ * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Layer/Grid.js
+ * @requires OpenLayers/Tile/Image.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.WMS
+ * Instances of OpenLayers.Layer.WMS are used to display data from OGC Web
+ *     Mapping Services. Create a new WMS layer with the <OpenLayers.Layer.WMS>
+ *     constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Layer.Grid>
+ */
+OpenLayers.Layer.WMS = OpenLayers.Class(OpenLayers.Layer.Grid, {
+
+    /**
+     * Constant: DEFAULT_PARAMS
+     * {Object} Hashtable of default parameter key/value pairs 
+     */
+    DEFAULT_PARAMS: { service: "WMS",
+                      version: "1.1.1",
+                      request: "GetMap",
+                      styles: "",
+                      exceptions: "application/vnd.ogc.se_inimage",
+                      format: "image/jpeg"
+                     },
+    
+    /**
+     * Property: reproject
+     * *Deprecated*. See http://trac.openlayers.org/wiki/SphericalMercator
+     * for information on the replacement for this functionality. 
+     * {Boolean} Try to reproject this layer if its coordinate reference system
+     *           is different than that of the base layer.  Default is true.  
+     *           Set this in the layer options.  Should be set to false in 
+     *           most cases.
+     */
+    reproject: false,
+ 
+    /**
+     * APIProperty: isBaseLayer
+     * {Boolean} Default is true for WMS layer
+     */
+    isBaseLayer: true,
+    
+    /**
+     * APIProperty: encodeBBOX
+     * {Boolean} Should the BBOX commas be encoded? The WMS spec says 'no', 
+     * but some services want it that way. Default false.
+     */
+    encodeBBOX: false,
+ 
+    /**
+     * Constructor: OpenLayers.Layer.WMS
+     * Create a new WMS layer object
+     *
+     * Example:
+     * (code)
+     * var wms = new OpenLayers.Layer.WMS("NASA Global Mosaic",
+     *                                    "http://wms.jpl.nasa.gov/wms.cgi", 
+     *                                    {layers: "modis,global_mosaic"});
+     * (end)
+     *
+     * Parameters:
+     * name - {String} A name for the layer
+     * url - {String} Base url for the WMS
+     *                (e.g. http://wms.jpl.nasa.gov/wms.cgi)
+     * params - {Object} An object with key/value pairs representing the
+     *                   GetMap query string parameters and parameter values.
+     * options - {Ojbect} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, params, options) {
+        var newArguments = [];
+        //uppercase params
+        params = OpenLayers.Util.upperCaseObject(params);
+        newArguments.push(name, url, params, options);
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, newArguments);
+        OpenLayers.Util.applyDefaults(
+                       this.params, 
+                       OpenLayers.Util.upperCaseObject(this.DEFAULT_PARAMS)
+                       );
+
+
+        //layer is transparent        
+        if (this.params.TRANSPARENT && 
+            this.params.TRANSPARENT.toString().toLowerCase() == "true") {
+            
+            // unless explicitly set in options, make layer an overlay
+            if ( (options == null) || (!options.isBaseLayer) ) {
+                this.isBaseLayer = false;
+            } 
+            
+            // jpegs can never be transparent, so intelligently switch the 
+            //  format, depending on teh browser's capabilities
+            if (this.params.FORMAT == "image/jpeg") {
+                this.params.FORMAT = OpenLayers.Util.alphaHack() ? "image/gif"
+                                                                 : "image/png";
+            }
+        }
+
+    },    
+
+    /**
+     * Method: destroy
+     * Destroy this layer
+     */
+    destroy: function() {
+        // for now, nothing special to do here. 
+        OpenLayers.Layer.Grid.prototype.destroy.apply(this, arguments);  
+    },
+
+    
+    /**
+     * Method: clone
+     * Create a clone of this layer
+     *
+     * Returns:
+     * {<OpenLayers.Layer.WMS>} An exact clone of this layer
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.WMS(this.name,
+                                           this.url,
+                                           this.params,
+                                           this.options);
+        }
+
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.Grid.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+
+        return obj;
+    },    
+    
+    /**
+     * Method: getURL
+     * Return a GetMap query string for this layer
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} A bounds representing the bbox for the
+     *                                request.
+     *
+     * Returns:
+     * {String} A string with the layer's url and parameters and also the
+     *          passed-in bounds and appropriate tile size specified as 
+     *          parameters.
+     */
+    getURL: function (bounds) {
+        bounds = this.adjustBounds(bounds);
+        
+        var imageSize = this.getImageSize(); 
+        var newParams = {
+            'BBOX': this.encodeBBOX ?  bounds.toBBOX() : bounds.toArray(),
+            'WIDTH': imageSize.w,
+            'HEIGHT': imageSize.h
+        };
+        var requestString = this.getFullRequestString(newParams);
+        return requestString;
+    },
+
+    /**
+     * Method: addTile
+     * addTile creates a tile, initializes it, and adds it to the layer div. 
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Tile.Image>} The added OpenLayers.Tile.Image
+     */
+    addTile:function(bounds,position) {
+        return new OpenLayers.Tile.Image(this, position, bounds, 
+                                         null, this.tileSize);
+    },
+
+    /**
+     * APIMethod: mergeNewParams
+     * Catch changeParams and uppercase the new params to be merged in
+     *     before calling changeParams on the super class.
+     * 
+     *     Once params have been changed, we will need to re-init our tiles.
+     * 
+     * Parameters:
+     * newParams - {Object} Hashtable of new params to use
+     */
+    mergeNewParams:function(newParams) {
+        var upperParams = OpenLayers.Util.upperCaseObject(newParams);
+        var newArguments = [upperParams];
+        return OpenLayers.Layer.Grid.prototype.mergeNewParams.apply(this, 
+                                                             newArguments);
+    },
+
+    /** 
+     * Method: getFullRequestString
+     * Combine the layer's url with its params and these newParams. 
+     *   
+     *     Add the SRS parameter from projection -- this is probably
+     *     more eloquently done via a setProjection() method, but this 
+     *     works for now and always.
+     *
+     * Parameters:
+     * newParams - {Object}
+     * altUrl - {String} Use this as the url instead of the layer's url
+     * 
+     * Returns:
+     * {String} 
+     */
+    getFullRequestString:function(newParams, altUrl) {
+        var projectionCode = this.map.getProjection();
+        this.params.SRS = (projectionCode == "none") ? null : projectionCode;
+
+        return OpenLayers.Layer.Grid.prototype.getFullRequestString.apply(
+                                                    this, arguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.WMS"
+});

Modified: trunk/parseAppDef.xsl
===================================================================
--- trunk/parseAppDef.xsl	2008-04-25 18:44:42 UTC (rev 1385)
+++ trunk/parseAppDef.xsl	2008-04-25 19:15:52 UTC (rev 1386)
@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
 <!--
-Description: Autogenerate widget documetation from widgetInfo files
+Description: Generates a list of widget and map files required for a single file build of Fusion
 $Id$
 $Name$
 -->
 
-
 <xsl:stylesheet version="1.0" 
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
     xmlns:xs="http://www.w3.org/2001/XMLSchema"
@@ -16,14 +15,6 @@
   <xsl:param name="buildHome">./build</xsl:param>
 
   <!-- Root node.  -->
-  <xsl:template match="/xxApplicationDefinition">
-    <filelist id="fusionAppWidgets" dir="{$buildHome}/widget">
-        <xsl:attribute name="files">
-          <xsl:apply-templates select="WidgetSet"/>
-        </xsl:attribute>
-    </filelist>
-  </xsl:template>
-
   <xsl:template match="/ApplicationDefinition">
     <xsl:variable name="widgetFileList">
       <xsl:apply-templates select="WidgetSet"/>
@@ -47,7 +38,7 @@
     </AppDef>
   </xsl:template>
 
-  <xsl:template match="Container"/>
+  <xsl:template match="Container"/> <!-- empty templates to suppress output -->
   <xsl:template match="MapWidget"/>
 
   <xsl:template match="Widget">
@@ -61,8 +52,11 @@
     </xsl:variable>
     <xsl:value-of select="$loc"/>/<xsl:value-of select="Type"/>.js 
   </xsl:template>
-  <xsl:template match="MapGroup/Map"><xsl:value-of select="Type"/>/<xsl:value-of select="Type"/>.js </xsl:template>
   
+  <xsl:template match="MapGroup/Map">
+    <xsl:value-of select="Type"/>/<xsl:value-of select="Type"/>.js 
+  </xsl:template>
+  
   <xsl:template name="removeDuplicates"> <!-- tokenize a string -->
     <xsl:param name="str"/> <!-- String to process -->
     <xsl:param name="sep"/> <!-- Legal separator character -->



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