+ getOffsetParent: function (el) {
+ el = Ext.getDom(el);
+ try {
+ // accessing offsetParent can throw "Unspecified Error" in IE6-8 (not 9)
+ return el.offsetParent;
+ } catch (e) {
+ var body = document.body; // safe bet, unless...
+ return (el == body) ? null : body;
+ }
+ },
+