new layerswitcher, improved google layer, boxes layer, grid fix

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1096 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/WMS.js

@@ -18,6 +18,14 @@ OpenLayers.Layer.WMS.prototype =
                       format: "image/jpeg"
                      },
 
+    /** WMS layer by default is a base layer. 
+     *   If the user wishes to use a WMS as a datalayer, s/he needs only 
+     *   set this property to false.
+     * 
+     * @type Boolean
+     */
+    isBaseLayer: true,
+
     /**
     * @constructor
     *
@@ -74,15 +82,7 @@ OpenLayers.Layer.WMS.prototype =
 
         return obj;
     },    
-
-
-    /** WMS layer is never a base class. 
-     * @type Boolean
-     */
-    isBaseLayer: function() {
-        return (this.params.TRANSPARENT != 'true');
-    },
-    
+        
     /**
     * addTile creates a tile, initializes it, and 
     * adds it to the layer div.