右下脚弹出提示小窗口

<DIV id="epop"
style="BORDER: #042760 1px solid; Z-INDEX: 99999; VISIBILITY: hidden; WIDTH: 180px; POSITION: absolute; bottom: 6px; HEIGHT: 116px; BACKGROUND-COLOR: #c9d3f3; padding:1px;right:20px">
<table width=220 height=116 border=0 cellpadding="0" cellspacing="0" background="../../images/messenger_2.gif">
<tr>
<td height="20" colspan="2"><img src="../../images/messenger_5.gif" hspace="5" /></td>
</tr>
<tr>
<td align="center" height="96"><img src="../../images/messenger_8.gif" /></td>
<td style="color:#FF0000; font-size:12px"><? echo $msg?></td>
</tr>
</table>
</div>
<script language=JavaScript type=text/javascript>
var divTop,divLeft,divWidth,divHeight,docHeight,docWidth,objTimer,i = 0;
function getMsg()
{
try{
divTop = parseInt(document.getElementById("epop").style.top,10)
divLeft = parseInt(document.getElementById("epop").style.left,10)
divHeight = parseInt(document.getElementById("epop").offsetHeight,10)
divWidth = parseInt(document.getElementById("epop").offsetWidth,10)
docWidth = document.body.clientWidth;
docHeight = document.body.clientHeight;
document.getElementById("epop").style.top = parseInt(document.body.scrollTop,10) + docHeight + 10;// divHeight
document.getElementById("epop").style.left = parseInt(document.body.scrollLeft,10) + docWidth - divWidth
document.getElementById("epop").style.visibility="visible"
objTimer = window.setInterval("moveDiv()",10)
}
catch(e){}
}

function resizeDiv()
{
i+=1
if(i>1288) closeDiv()
try{
divHeight = parseInt(document.getElementById("epop").offsetHeight,10)
divWidth = parseInt(document.getElementById("epop").offsetWidth,10)
docWidth = document.body.clientWidth;
docHeight = document.body.clientHeight;
document.getElementById("epop").style.top = docHeight - divHeight + parseInt(document.body.scrollTop,10)
document.getElementById("epop").style.left = docWidth - divWidth + parseInt(document.body.scrollLeft,10)
}
catch(e){}
}

function moveDiv()
{
try
{
if(parseInt(document.getElementById("epop").style.top,10) <= (docHeight - divHeight + parseInt(document.body.scrollTop,10)))
{
window.clearInterval(objTimer)
objTimer = window.setInterval("resizeDiv()",1)
}
divTop = parseInt(document.getElementById("epop").style.top,10)
document.getElementById("epop").style.top = divTop - 1
}
catch(e){}
}

function closeDiv()
{
document.getElementById('epop').style.visibility='hidden';
if(objTimer) window.clearInterval(objTimer)
}
window.onload = getMsg;
window.onresize = resizeDiv;
window.onerror = function(){}
</SCRIPT>