element._revert = new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur}); 
new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur, queue: {scope:'_draggable', position:'end'} }); 
      reverteffect: function(element, top_offset, left_offset) {        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;        element._revert = new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur});      },
4999	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4999/15b6168787a6a25fd1fbbc41a3a5227b899071a9/dragdrop.js/clean/wp-includes/js/scriptaculous/dragdrop.js