[OpenLayers-Users] Set map initial center and zoom

[Raul David Orozco]

I'm here again with mi newbie questions. I've been dealing with this issue for a long time and I can't fix it no matter how hard I try.
I need to make OL set an initial coordinates and zoom so when I open the browser the map stars in some specific part of the world. 

I've done it perfectly with an example doing this:
var options = {
 			minResolution: "auto",
 			minExtent: new OpenLayers.Bounds(-1, -1, 1, 1),
 			maxResolution: "auto",
 			maxExtent: new OpenLayers.Bounds(-180, -90, 180, 90)
 		  };

            map = new OpenLayers.Map( 'map' , options);


            layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
                    "http://labs.metacarta.com/wms/vmap0", {layers: 'basic'});
            map.addLayer(layer);

            map.setCenter(new OpenLayers.LonLat(-73, 3), 3);
And it works just the way I want, but when I do this with my map:
var options = {
                            minResolution: "auto",
                            minExtent: new OpenLayers.Bounds(-1, -1, 1, 1),
                            maxResolution: "auto",
                            maxExtent: new OpenLayers.Bounds(-180, -90, 180, 90)
                 };

           var map = new OpenLayers.Map( 'map' , options);

  
 		var request = OpenLayers.Request.GET(
 		{url: "dir/smms/wms.php?VERSION=1.1.1&REQUEST=GetCapabilities&SERVICE=WMS",
 		success: function(response){
 						var XMLformat = new OpenLayers.Format.XML();
 						var xml = XMLformat.read(response.responseText);
 						var CAPformat = new OpenLayers.Format.WMSCapabilities();
 						var cap = CAPformat.read(xml);
 					 
 						for (var i=0; i<cap.capability.layers.length; i++) {
 							layer = cap.capability.layers[i];
 										layers_array[i] = new OpenLayers.Layer.WMS( layer.name, 
                                            "dir/smms/wms.php", 
                                            {'layers': layer.name, format: "image/png"}
                                            );
 										 							 
 						 
 							map.addLayer(layers_array[i]);
 						}
 							},
 			failure: function(response){
 						alert(response.status);
 						alert("GetCapabilities failed");
 							}
 		}); 
 				 
 		map.setCenter(new OpenLayers.LonLat(-73, 3), 3);

IT DOESN'T WORK, I get the error : maxExtent is null. What can I do??? I hope somebody can help me.


      ____________________________________________________________________________________
¡Obtén la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8. 
http://downloads.yahoo.com/ieak8/?l=e1
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/openlayers-users/attachments/20090814/cc4b3e3c/attachment.html