+
+ // Get offset adding all offsets, slow fall-back method
+ var getOffsetSlow = function(el){
+ var top = 0, left = 0;
+ do {
+ top += el.offsetTop || 0;
+ left += el.offsetLeft || 0;
+ el = el.offsetParent;
+ } while (el);
+
+ return {
+ left: left,
+ top: top
+ };
+ };
+