rem: Draggable._revertCache[element] = new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur, queue: {scope:'_draggable', position:'end'} }); 
add: new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur, queue: {scope:'_draggable', position:'end'} }); 
context:       reverteffect: function(element, top_offset, left_offset) {        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;        Draggable._revertCache[element] =          new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,            queue: {scope:'_draggable', position:'end'}          });      },
meta: 7994	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/7994/4d928369043aea712d094cb4d97db2674c85c8ac/dragdrop.js/clean/src/dragdrop.js