<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=gb2312">
</HEAD><BODY>
<DIV id="floatDiv" style="position:absolute; border:1px solid black; background-color:#CCCCCC;top:0px; left:0px; width:200px; height:100px"></DIV>
aaa<br>
aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
</BODY>
<SCRIPT language="javascript">
document.body.onscroll = function()
{
floatDiv.style.top = document.body.scrollTop;
}
</SCRIPT>
</HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=gb2312">
</HEAD><BODY>
<DIV id="floatDiv" style="position:absolute; border:1px solid black; background-color:#CCCCCC;top:0px; left:0px; width:200px; height:100px"></DIV>
aaa<br>
aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
</BODY>
<SCRIPT language="javascript">
document.body.onscroll = function()
{
floatDiv.style.top = document.body.scrollTop;
}
</SCRIPT>
</HTML>
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<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=gb2312">
</HEAD><BODY>
<DIV id="floatDiv" style="position:absolute; border:1px solid black; background-color:#CCCCCC;top:520px; left:0px; width:200px; height:100px"></DIV>
aaa<br>
aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>aaa<br>
</BODY>
<SCRIPT language="javascript">
document.body.onscroll = function()
{
floatDiv.style.top = document.body.scrollTop+520;
}
</SCRIPT>
</HTML>
樓主可以結貼了