rem: element._opacity = Element.getOpacity(element); 
add: element._opacity = Element.getOpacity(element); Draggable._dragging[element] = true; 
context:       starteffect: function(element) {        element._opacity = Element.getOpacity(element);         new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});       },
meta: 7994	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/7994/c31fdc38f767373d22b3dd5a5072aa4962ca5b65/dragdrop.js/buggy/src/dragdrop.js