怎么实现层在滚动条移动的时候也跟着移动？？？如果用VBScript则最佳！！！

通用的广告代码float_image.js
================================
var adSrc4 = "b.gif" //your picture here
var adUrl4 = "#" // your link here
var adWidth4 = "80"
var adHeight4 = "80"// change var
var weny4 = 100
var wenx4 = 10document.ns = navigator.appName == "Netscape"
function load4()
{
if (navigator.appName == "Netscape") {
document.netease4.pageY=pageYOffset+window.innerHeight-adHeight4-weny4;
document.netease4.pageX=+window.innerWidth-adWidth4-wenx4;
move4();
}
else {
netease4.style.top=document.body.scrollTop+document.body.offsetHeight-adHeight4-weny4-20;
netease4.style.left=document.body.offsetWidth-adWidth4-wenx4-20;
move4();
}
}function move4() {
if(document.ns) {
document.netease4.top=pageYOffset+window.innerHeight-adHeight4-weny4;
document.netease4.left=+window.innerWidth-adWidth4-wenx4;
setTimeout("move4();",80)
}
else {
netease4.style.top=document.body.scrollTop+document.body.offsetHeight-adHeight4-weny4-20;
netease4.style.left=document.body.offsetWidth-adWidth4-wenx4-20;
setTimeout("move4();",80)
}
}function MM_reloadPage4(init) { //reloads the window if Nav4 resized
if (init==true)
with (navigator)
{
if ((appName=="Netscape")&&(parseInt(appVersion)==4))
{
document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage4;
}
}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH)
location.reload();
}MM_reloadPage4(true)if (navigator.appName == "Netscape") {
document.write("<layer id=netease4 top=300 width=" + adWidth4 + " height=" + adHeight4 + " ><a href=" + adUrl4 + " target=_blank><img src=" + adSrc4 + " border=0></a></layer>");
load4();
}
else {
document.write("<div id=netease4 style='top:300; position: absolute; width:" + adWidth4 + ";'><a href=" + adUrl4 + " target=_blank><img src=" + adSrc4 + " border=0></a></div>");
load4();
}==================
demo.htm
================
<TABLE width=750 height="800" border=0>
<TR align=middle>
<TD height=800px> </TD></TR></TABLE>
<SCRIPT language=javascript src="float_img.js"></SCRIPT>两个文件放在同一个目录里，再放一个a.gif

解决方案 »

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<img src="http://expert.csdn.net/images/csdn.gif" border=0 style="position: absolute; top:expression(document.body.scrollTop + document.body.clientHeight - this.clientHeight); left:expression(document.body.scrollLeft + document.body.clientWidth - this.clientWidth);">