move observers definition to top of object definition for readability

git-svn-id: http://svn.openlayers.org/trunk/openlayers@2984 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Events.js

@@ -10,6 +10,12 @@
  */
 OpenLayers.Event = {
 
+    /** A hashtable cache of the event observers, keyed by element.id
+     * 
+     * @type Object
+     */
+    observers: false,
+    
     /** @final @type int */
     KEY_BACKSPACE: 8,
 
@@ -113,12 +119,6 @@ OpenLayers.Event = {
         return element;
     },
 
-    /** A hashtable cache of the event observers, keyed by element.id
-     * 
-     * @type Object
-     */
-    observers: false,
-
     /** 
      * @param {DOMElement} element
      * @param {String} name