add:  if(this.element._revert) { this.element._revert.cancel(); this.element._revert = null; } 
context:   initDrag: function(event) {    if(Event.isLeftClick(event)) {          // abort on form elements, fixes a Firefox issue      var src = Event.element(event);      if(src.tagName && (        src.tagName=='INPUT' ||        src.tagName=='SELECT' ||        src.tagName=='BUTTON' ||        src.tagName=='TEXTAREA')) return;            var pointer = [Event.pointerX(event), Event.pointerY(event)];      var pos     = Position.cumulativeOffset(this.element);      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });            Draggables.activate(this);      Event.stop(event);    }  },
meta: 4973	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4973/08ca862091194b85b405f2c8d24c8c00908204ef/dragdrop.js/clean/src/dragdrop.js