rem: var containers = drop._containers; 
context:   isContained: function(element, drop) {    var containers = drop._containers;    var parentNode = element.parentNode;    var i = drop._containers_length;    do { if(parentNode==containers[i]) return true; } while (i--);    return false;  },
meta: 3991	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3991/d29159eae8749c508d01bb447868321a3ba6bbfa/dragdrop.js/buggy/manager/media/script/scriptaculous/dragdrop.js