Adding events to map while dragging in the zoombar, then removing them afterwards. This neccessitated adding a 'remove' to Events, to pop events off the end. No more problems with dragging off into the map accidentally.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@388 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Events.js

@@ -59,6 +59,10 @@ OpenLayers.Events.prototype = {
         var listeners = this.listeners[type];
         listeners.push( func.bindAsEventListener(obj) );
     },
+    
+    remove: function(type) {
+        this.listeners[type].pop();
+    },
 
     /**
     * @param {event} evt