rem: this.unregisterEvents(); 
add: Draggables.unregister(this); 
context:   destroy: function() {    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);    this.unregisterEvents();  },
meta: 3991	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3991/d29159eae8749c508d01bb447868321a3ba6bbfa/dragdrop.js/buggy/manager/media/script/scriptaculous/dragdrop.js