求类似于163邮箱的消息提示框代码（弹出消息提示后，后面的界面点不了）。
同上。
[解决办法]
好了
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private void Button1_Click(object sender, System.EventArgs e)
{
string sMsg = "test ";
this.RegisterStartupScript( " ", " <script language=javascript defer> sAlert(\ " " + sMsg + "\ "); </script> ");
}
<body MS_POSITIONING= "GridLayout " onload = " ";>
<script language=javascript>
function sAlert(txt)
{
//var eSrc=(document.all)?window.event.srcElement:arguments[1];
var shield = document.createElement( "DIV ");
shield.id = "shield ";
shield.style.position = "absolute ";
shield.style.left = "0px ";
shield.style.top = "0px ";
shield.style.width = "100% ";
shield.style.height = document.body.scrollHeight+ "px ";
shield.style.background = "#333 ";
shield.style.textAlign = "center ";
shield.style.zIndex = "10000 ";
shield.style.filter = "alpha(opacity=0) ";
shield.style.opacity = 0;
var alertFram = document.createElement( "DIV ");
alertFram.id= "alertFram ";
alertFram.style.position = "absolute ";
alertFram.style.left = "50% ";
alertFram.style.top = "50% ";
alertFram.style.marginLeft = "-225px " ;
alertFram.style.marginTop = -75+document.documentElement.scrollTop+ "px ";
alertFram.style.width = "450px ";
alertFram.style.height = "150px ";
alertFram.style.background = "#ccc ";
alertFram.style.textAlign = "center ";
alertFram.style.lineHeight = "150px ";
alertFram.style.zIndex = "10001 ";
strHtml = " <ul style=\ "list-style:none;margin:0px;padding:0px;width:100%\ "> \n ";
strHtml += " <li style=\ "background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\ "> [提示] </li> \n ";
strHtml += " <li style=\ "background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\ "> "+txt+ " </li> \n ";
strHtml += " <li style=\ "background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\ "> <input type=\ "button\ " value=\ " 确 定 \ " id=\ "do_OK\ " onclick=\ "doOk()\ " /> </li> \n ";
strHtml += " </ul> \n ";
alertFram.innerHTML = strHtml;
document.body.appendChild(alertFram);
document.body.appendChild(shield);
//加个iframe拖住
adjustiFrame();
this.setOpacity = function(obj,opacity){
if(opacity> =1)opacity=opacity/100;
try{ obj.style.opacity=opacity; }catch(e){}
try{
if(obj.filters.length> 0&&obj.filters( "alpha ")){
obj.filters( "alpha ").opacity=opacity*150;
}else{
obj.style.filter= "alpha(opacity=\ " "+(opacity*150)+ "\ ") ";
}
}catch(e){}
}
var c = 0;
this.doAlpha = function(){
if (++c > 20){clearInterval(ad);return 0;}
setOpacity(shield,c);
}
var ad = setInterval( "doAlpha() ",1);
this.doOk = function(){
document.body.removeChild(alertFram);
document.body.removeChild(shield);
document.body.removeChild(document.getElementById( "ifName "));
document.body.onselectstart = function(){return true;}
document.body.oncontextmenu = function(){return true;}
}
document.getElementById( "do_OK ").focus();
document.body.onselectstart = function(){return false;}
document.body.oncontextmenu = function(){return false;}
}
function adjustiFrame()
{
// 如果没有IFrame，则创建之
if (!document.getElementById( "ifName "))
{
var newNode = document.createElement( "iFrame ");
newNode.setAttribute( "id ", "ifName ");
newNode.setAttribute( "src ", "javascript:false; ");
newNode.setAttribute( "scrolling ", "no ");
newNode.setAttribute( "frameborder ", "0 ");
document.body.appendChild(newNode);
}
iFrameDiv = document.getElementById( "ifName ");
var div = document.getElementById( "alertFram ");
// 调整IFrame的位置与div重合，并在div的下一层
try
{
iFrameDiv.style.position = "absolute ";
iFrameDiv.style.width = div.offsetWidth;
iFrameDiv.style.height = div.offsetHeight;
iFrameDiv.style.marginLeft = div.style.marginLeft;
iFrameDiv.style.marginTop = div.style.marginTop;
iFrameDiv.style.top = div.style.top;
iFrameDiv.style.left = div.style.left;
iFrameDiv.style.zIndex = div.style.zIndex - 1;
//iFrameDiv.style.visibility = div.style.visibility;
}
catch (e)
{
}
}
</script>
<form id= "Form1 " method= "post " runat= "server ">
<asp:Button id= "Button1 " style= "Z-INDEX: 101; LEFT: 224px; POSITION: absolute; TOP: 96px " runat= "server "
Text= "Button "> </asp:Button> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br>
<asp:DropDownList id=DropDownList1 style= "Z-INDEX: 102; LEFT: 424px; POSITION: absolute; TOP: 248px " runat= "server "> </asp:DropDownList>
<br>
<br> <br> <br> <br> <br> <br> <br> <br> <br>
<br> <br>
<br>
<br>
<br>
<br>
</form>
</body>
