code: function(evt) {
          if (OpenLayers.Util.mouseLeft(evt, this.map.viewPortDiv)) {
              this.clearTimer();
              this.callback('move', [evt]);
          }
          return true;
      }
docs: Method: mouseout
  Called when the mouse goes out of the map.
  
  Parameters:
  evt - {<OpenLayers.Event>}
  
  Returns:
  {Boolean} Continue propagating this event.