rem: curtop += obj.offsetTop; 
add: curtop += obj.offsetTop - ((isOpera) ? 0 : obj.scrollTop); 
context: function findPosY(obj) {    var curtop = 0;    if (obj.offsetParent) {        while (obj.offsetParent) {            curtop += obj.offsetTop;            obj = obj.offsetParent;        }    } else if (obj.y) {        curtop += obj.y;    }    return curtop;}
meta: 779	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/779/3358e2fec701fc7523e126433c87428e7a540b5f/core.js/buggy/django/contrib/admin/media/js/core.js