随滚动条移动的层

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<html xmlns="http://www.w3.org/1999/xhtml">
<HEAD>
<TITLE>随滚动条移动的层 - 51windows.Net</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html" charset="gb2312">
<META NAME="Author" CONTENT="haiwa">
<META NAME="homepage" CONTENT="www.51windows.net">
</HEAD>
<style>
<!--
.div{
	position: absolute;
	border: 2px solid red;
	background-color: #EFEFEF;
	line-height:90px;
	font-size:12px;
	z-index:1000;
}
-->
</style>
<BODY>
<div id="Javascript.Div1" class="div" style="width: 240px; height:90px" align="center">正中...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc1(){
	document.getElementById("Javascript.Div1").style.top=(document.documentElement.scrollTop+(document.documentElement.clientHeight-document.getElementById("Javascript.Div1").offsetHeight)/2)+"px";
	document.getElementById("Javascript.Div1").style.left=(document.documentElement.scrollLeft+(document.documentElement.clientWidth-document.getElementById("Javascript.Div1").offsetWidth)/2)+"px";
}
</SCRIPT>


<div id="Javascript.Div2" class="div" style="width: 240px; height:90px" align="center">左上...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc2(){
	document.getElementById("Javascript.Div2").style.top=(document.documentElement.scrollTop)+"px";
	document.getElementById("Javascript.Div2").style.left=(document.documentElement.scrollLeft)+"px";
}
</SCRIPT>

<div id="Javascript.Div3" class="div" style="width: 240px; height:90px" align="center">左下...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc3(){
	document.getElementById("Javascript.Div3").style.top=(document.documentElement.scrollTop+document.documentElement.clientHeight-document.getElementById("Javascript.Div3").offsetHeight)+"px";
	document.getElementById("Javascript.Div3").style.left=(document.documentElement.scrollLeft)+"px";
}
</SCRIPT>

<div id="Javascript.Div4" class="div" style="width: 240px; height:90px" align="center">右上...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc4(){
	document.getElementById("Javascript.Div4").style.top=(document.documentElement.scrollTop)+"px";
	document.getElementById("Javascript.Div4").style.left=(document.documentElement.scrollLeft+document.documentElement.clientWidth-document.getElementById("Javascript.Div4").offsetWidth)+"px";
}
</SCRIPT>

<div id="Javascript.Div5" class="div" style="width: 240px; height:90px" align="center">右下...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc5(){
	document.getElementById("Javascript.Div5").style.top=(document.documentElement.scrollTop+document.documentElement.clientHeight-document.getElementById("Javascript.Div5").offsetHeight)+"px";
	document.getElementById("Javascript.Div5").style.left=(document.documentElement.scrollLeft+document.documentElement.clientWidth-document.getElementById("Javascript.Div5").offsetWidth)+"px";
}
</SCRIPT>


<SCRIPT LANGUAGE="JavaScript">
<!--
function scall(){
	sc1();sc2();sc3();sc4();sc5();
}
window.onscroll=scall;
window.onresize=scall;
window.onload=scall;
//-->
</SCRIPT>
<div style="position: absolute; top: 0px; left: 0px; width: 10000px; height: 4000px;"></div>
</BODY>
</HTML>