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/Yahoo.js

@@ -12,6 +12,12 @@ document.write("<script src='http://api.maps.yahoo.com/ajaxymap?v=3.0&appid=euzu
 OpenLayers.Layer.Yahoo = Class.create();
 OpenLayers.Layer.Yahoo.prototype = Object.extend( new OpenLayers.Layer(), {
 
+    /** Yahoo layer is always a base layer.
+     * 
+     * @type Boolean
+     */
+    isBaseLayer: true,
+    
     /** @type Boolean */
     isFixed: true,
 
@@ -40,13 +46,6 @@ OpenLayers.Layer.Yahoo.prototype = Object.extend( new OpenLayers.Layer(), {
         this.map.events.register("addlayer", this, this.loadYMap);
     },
 
-    /** Yahoo layer is always a base class.
-     * @type Boolean
-     */
-    isBaseLayer: function() {
-        return true;
-    },
-    
     /** 
      * @param {OpenLayers.Bounds} bounds
      * @param {Boolean} zoomChanged