rem: new Effect2.MoveBy(element, -top_offset, -left_offset, {duration:0.4}); 
add: new Effect.MoveBy(element, -top_offset, -left_offset, {duration:0.4}); 
context:       reverteffect: function(element, top_offset, left_offset) {        new Effect2.MoveBy(element, -top_offset, -left_offset, {duration:0.4});      },
meta: 6415	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6415/0ffcceffac52cc4ed373eb9db27d6c776b5d96b7/dragdrop.js/clean/actionpack/lib/action_view/helpers/javascripts/dragdrop.js