rem: this.offset = this.cumulativeOffset(element); 
add: this.offset = Element.cumulativeOffset(element); 
context:   within: function(element, x, y) {    if (this.includeScrollOffsets)      return this.withinIncludingScrolloffsets(element, x, y);    this.xcomp = x;    this.ycomp = y;    this.offset = this.cumulativeOffset(element);    return (y >= this.offset[1] &&            y <  this.offset[1] + element.offsetHeight &&            x >= this.offset[0] &&            x <  this.offset[0] + element.offsetWidth);  },
meta: 9100	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9100/2d4247a14ff4ce25ad80cbc65b787dfde7ddb16e/prototype.js/buggy/typo3/contrib/prototype/prototype.js