问一个比较有难度的问题

Question

层是随网页的。如果要保留，就要保留网页。你还是用 window.open 开个新窗吧。

Answer 1

<div id=epop style="BORDER-RIGHT:#455690 1px solid; BORDER-TOP:#a6b4cf 1px solid; Z-INDEX:99999; LEFT:0px; VISIBILITY:hidden; BORDER-LEFT:#a6b4cf 1px solid; WIDTH:180px; BORDER-BOTTOM:#455690 1px solid; POSITION:absolute; TOP:0px; HEIGHT:116px; BACKGROUND-COLOR:#c9d3f3">
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="BORDER-TOP:#ffffff 1px solid; BORDER-LEFT:#ffffff 1px solid" bgcolor="#cfdef4">
<tr><td height="24" width="26" style="FONT-SIZE:12px;BACKGROUND-IMAGE:url(Images/msgTopBg.gif);COLOR:#0f2c8c" valign="middle"><img src="Images/logo50_16.gif" hspace="5" align="absMiddle" vspace="1"/></td>
<td style="FONT-WEIGHT:normal;FONT-SIZE:9pt;BACKGROUND-IMAGE:url(Images/msgTopBg.gif);COLOR:#1f336b;PADDING-TOP:4px" valign="middle" width="100%">乐购告示牌</td>
<td style="BACKGROUND-IMAGE:url(Images/msgTopBg.gif);PADDING-TOP:2px" valign="middle" width="19" align="right"><img src="Images/msgClose.jpg" hspace="3" style="CURSOR:pointer" onclick="closeDiv()" title="关闭"/></td>
</tr>
<tr><td colspan="3" height="90" style="PADDING-RIGHT:1px;BACKGROUND-IMAGE:url(Images/msgBottomBg.jpg);PADDING-BOTTOM:1px">
<div style="BORDER-RIGHT: #b9c9ef 1px solid; PADDING-RIGHT: 13px; BORDER-TOP: #728eb8 1px solid; PADDING-LEFT: 13px; FONT-SIZE: 9pt; PADDING-BOTTOM: 13px; BORDER-LEFT: #728eb8 1px solid; WIDTH: 100%; COLOR: #1f336b; PADDING-TOP: 18px; BORDER-BOTTOM: #b9c9ef 1px solid; HEIGHT: 100%">现在申请网上开店，立即享受7大项费用全免！<br>
<div align="center"><a href="http://www.loogoo.com/shop.html" style="FONT-WEIGHT:bold;COLOR:navy">详情请看</a></div></div></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>
你可以复制成html看看效果，我想问一下，在asp.net后台，如何控制这个层
if not session("a") = nothing 
在这里触发，让层显示呢？
end if请教

Answer 2

首先注释掉window.onload = getMsg;
 window.onresize = resizeDiv;
这两句通过后台代码
if me.session("b") then
 Page.RegisterStartupScript("regJS","<script language=javascript>getMsg();window.onresize = resizeDiv;</script>");
end if
触发