javascript YUI 读码日记之 YAHOO.util.Dom – Part.4

var getXY = function() { // 判断是否是 IE if (document.documentElement.getBoundingClientRect) { // 注1 return function(el) { var box = el.getBoundingClientRect(); var rootNode = el.ownerDocument; return [box.left + Y.Dom.getDocumentScr