rem: var offsetcache = this.realOffset(element); 
add: var offsetcache = Element.cumulativeScrollOffset(element); 
context:   withinIncludingScrolloffsets: function(element, x, y) {    var offsetcache = this.realOffset(element);    this.xcomp = x + offsetcache[0] - this.deltaX;    this.ycomp = y + offsetcache[1] - this.deltaY;    this.offset = this.cumulativeOffset(element);    return (this.ycomp >= this.offset[1] &&            this.ycomp <  this.offset[1] + element.offsetHeight &&            this.xcomp >= this.offset[0] &&            this.xcomp <  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