rem: this.xcomp = x + offsetcache[0] - this.deltaX + this.offset[0]; this.ycomp = y + offsetcache[1] - this.deltaY + this.offset[1]; 
context:   withinIncludingScrolloffsets: function(element, x, y) {    var offsetcache = this.realOffset(element);    this.offset = this.cumulativeOffset(element);    this.xcomp = x + offsetcache[0] - this.deltaX + this.offset[0];    this.ycomp = y + offsetcache[1] - this.deltaY + this.offset[1];    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: 4973	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4973/e2371ffc5409110da417048e1b81a38ed4e0c32e/prototype.js/buggy/lib/prototype.js