摘要：
原来HTML里是document.bodyXHTML里是document.documentElement都指的是<body>节点(OR元素)可以这样兼容：function getBodyObj(){return (document.documentElement) ? document.documentElement : document.body ;}在DHTML文档中对documentElement的说明是：Object that receives the reference to the document element，The root node of a typical 阅读全文
