[OpenLayers-Users] Overlaying WMS layer on Google maps - help

[modala]

Hi, I am unable to overlay the WMS map on google maps. Can any one help me
with this code
	function init(){
		
		/* The full extent/bounds to which the Map can be zoomed */
		var fullBounds = new OpenLayers.Bounds(-90, 0, 70, 30);
		
		/* Map variable is assigned a OpenLayers.Map */
		map = new OpenLayers.Map("map", {
			div: "map",
			controls:[
					new OpenLayers.Control.Navigation(
						{mouseWheelOptions: {interval: 100}}
					),
					new OpenLayers.Control.PanZoomBar(),
					new OpenLayers.Control.Attribution(), 
					new OpenLayers.Control.LayerSwitcher(), 
					//new OpenLayers.Control.Permalink(), 
					//new OpenLayers.Control.OverviewMap()
				],
			maxExtent: fullBounds,
			projection: new OpenLayers.Projection("EPSG:900913"),
			displayProjection: new OpenLayers.Projection("EPSG:4326")
		});	

		/* This is the stylemap which styles i.e. colors, borders, etc the
selected features and clusters */
		var fStyle = new OpenLayers.Style({
                    pointRadius: "${radius}",
                    fillColor: "#ffcc66",
                    fillOpacity: 0.8,
                    strokeColor: "#cc6633",
                    strokeWidth: 2,
                    strokeOpacity: 0.8,
					label:"${count}",
					fontSize: "9px",
					fontWeight: "bold",
                }, {
                    context: {
                        radius: function(feature) {
                           /* The radius of the cluster is set based on the
number of features it contains*/
						   return Math.min(feature.cluster.length, 7) + 3;
                        },						
						count: function(feature) {
							/* This  displays the count of the features on the clusters */
							if (feature.cluster.length>1)
								return feature.cluster.length;
							else
								return "";							
						}
                    }
                });
		
		/* the Thesis variable is assigned a OpenLayers.Layer.Vector */		
		thesis = new OpenLayers.Layer.Vector("Thesis", {	
			projection: map.displayProjection,	
			strategies: [
					new OpenLayers.Strategy.Fixed(),
					/* Using the cluster strategy clusters the features that are too close
into clusters. */
					new OpenLayers.Strategy.Cluster({
						//distance:20 //This value can be changed to change the distance which
defines when to form clusters
					})
			],    
			protocol: new OpenLayers.Protocol.HTTP({
				/* The path to the KML files*/
				url: "kml_final1.kml",
				//url: "georeferences_July19_2_modified.kml",
				format: new OpenLayers.Format.KML({
					extractAttributes: true,
					maxDepth: 1,					
				})					
			}),
			/* This style map says that the default style is the fstyle which is
defined above, and upon selection, the one defined 
			   infront of 'select' gets activated */
			styleMap: new OpenLayers.StyleMap({
					"default": fStyle,
					"select": {
						fillColor: "#8aeeef",
						strokeColor: "#32a8a9",
					}
			})
		});
		
		/* This is an important function where once all the strategies are done
loading i.e. the features are done loading, the 
		   set of features is assigned to the all_featuresArray which was
initialized earlier.
		   thesis.strategies[i] can be selected to choose either the clusters or
the features, as per the order defined in the Vector	*/
		thesis.events.register("loadend", this, function(){		
			all_featuresArray = thesis.strategies[1].features;
		});				
		
		/* These are the base layers on top of which the Vector will be displayed
*/
		var gmap = new OpenLayers.Layer.Google("Google Streets", {numZoomLevels:
20, sphericalMercator: true} );
		var gmap_phy =  new OpenLayers.Layer.Google("Google Hybrid",  {type:
google.maps.MapTypeId.HYBRID, numZoomLevels: 20, sphericalMercator: true});
		var osm = new OpenLayers.Layer.OSM('Open Street Maps',
'http://tile.openstreetmap.org/${z}/${x}/${y}.png', {numZoomLevels: 20,
sphericalMercator: true} ); 		
		var wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://vmap0.tiles.osgeo.org/wms/vmap0", {isBaseLayer:false});
		wms.projection = (map.displayProjection, map.getProjectionObject())
		/* Add the above layers to the map */
		map.addLayers([ gmap, gmap_phy, osm, wms]);
		/* Add the vectors to the Map */
		map.addLayers([ thesis]);
	



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