<HTML>
<HEAD>
<TITLE>始终在页面固定位置的层</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html" charset="gb2312">
</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: 240; height:90" align="center">正中...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc1(){
document.getElementById("Javascript.Div1").style.top=document.body.scrollTop+(document.body.clientHeight-document.getElementById("Javascript.Div1").offsetHeight)/2
document.getElementById("Javascript.Div1").style.left=document.body.scrollLeft+(document.body.clientWidth-document.getElementById("Javascript.Div1").offsetWidth)/2;
}
</SCRIPT>
<div id="Javascript.Div2" class="div" style="width: 240; height:90;" align="center">左上...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc2(){
document.getElementById("Javascript.Div2").style.top=document.body.scrollTop
document.getElementById("Javascript.Div2").style.left=document.body.scrollLeft;
}
</SCRIPT>
<div id="Javascript.Div3" class="div" style="width: 240; height:90;" align="center">左下...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc3(){
document.getElementById("Javascript.Div3").style.top=document.body.scrollTop+document.body.clientHeight-document.getElementById("Javascript.Div3").offsetHeight;
document.getElementById("Javascript.Div3").style.left=document.body.scrollLeft;
}
</SCRIPT>
<div id="Javascript.Div4" class="div" style="width: 240; height:90;" align="center">右上...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc4(){
document.getElementById("Javascript.Div4").style.top=document.body.scrollTop;
document.getElementById("Javascript.Div4").style.left=document.body.scrollLeft+document.body.clientWidth-document.getElementById("Javascript.Div4").offsetWidth;
}
</SCRIPT>
<div id="Javascript.Div5" class="div" style="width: 240; height:90;" align="center">右下...</div>
<SCRIPT LANGUAGE="JavaScript">
function sc5(){
document.getElementById("Javascript.Div5").style.top=document.body.scrollTop+document.body.clientHeight-document.getElementById("Javascript.Div5").offsetHeight;
document.getElementById("Javascript.Div5").style.left=document.body.scrollLeft+document.body.clientWidth-document.getElementById("Javascript.Div5").offsetWidth;;
}
</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: 0; left: 0; width: 10000; height: 4000;"></div>
</BODY>
</HTML>