js实现兼容IE6与IE7的DIV高度

<bodyonload="setHeight()">
<scripttype="text/javascript">
functionsetHeight(){
varPageHeight=$("oPage").scrollHeight
varMaxHeight=507

if(PageHeight>MaxHeight)
{
$("oPageMain").style.height=$("oPage").scrollHeight+40+"px"
$("oRight").style.height=$("oPage").scrollHeight+120+"px"
$("oMain").style.height=$("oPage").scrollHeight+211+"px"
}
}
</script>