rem: cumulativeOffset: function(element) { 
add: Position.cumulativeOffset = function(element) { 
context:   cumulativeOffset: function(element) {    var valueT = 0, valueL = 0;    do {      valueT += element.offsetTop  || 0;      valueL += element.offsetLeft || 0;      element = element.offsetParent;    } while (element);    return [valueL, valueT];  },
meta: 2355	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2355/9867ca01ad65827d23c0bf6cc14d8a64137e927d/prototype.js/clean/tracks/public/javascripts/prototype.js