共享偶写的模仿WIN关机效果函数 http://bbs.blueidea.com/thread-2755043-1-1.html

<script>
function msg(info){
var p=document.createElement("DIV");
if (!info) var info='^_^ 谢谢捧场！！';
p.id="p";
p.style.position="absolute";
p.style.width=document.body.scrollWidth;
p.style.height=(document.body.offsetHeight>document.body.scrollHeight)?'100%':document.body.scrollHeight;
p.style.zIndex='998';
p.style.top='0px';
p.style.left='0%';
p.style.backgroundColor="gray";
p.style.opacity='0.5';
p.style.filter="alpha(opacity=80)";
document.body.appendChild(p);
var p1=document.createElement("DIV");
var top=parseInt(parseInt(document.body.scrollHeight)*0.25)+document.body.scrollTop;
p1.style.position="absolute";
p1.style.width="300px";
p1.id="p1";
var left=Math.ceil(((document.body.scrollWidth)-parseInt(p1.style.width.replace('px','')))/2)+document.body.scrollLeft;
p1.style.height="200px";
p1.style.zIndex='999';
p1.style.top=top+'px';
p1.style.left=left+'px';
p1.style.border="0px solid red";
var html="";
html+="<center>"
html+="<div class='p3' style='height:1px;overflow:hidden;background:red;width:294px;border-left:1px solid red;border-right:1px solid red;'></div>"
html+="<div class='p2' style='height:1px;overflow:hidden;background:red;width:296px;border-left:1px solid red;border-right:1px solid red;'></div>"
html+="<div class='p2' style='height:1px;overflow:hidden;background:red;width:298px;border-left:1px solid red;border-right:1px solid red;'></div>"
html+="<div class='p1' style='height:20px;overflow:hidden;background:red;width:300px;border-left:1px solid red;border-right:1px solid red;color:#fff;font-size:9pt;font-weight:bold;text-align:left;'> ⊙ 提示</div>"
html+="<div id='c' style='height:150px;width:300px;background-color:#FEEACB;overflow:hidden;border-left:1px solid red;border-right:1px solid red;padding-top:40px;font-size:9pt;'>"+info+"<br><br><br>[ <a href='javascript:this.cancle()'>关闭</a> ]</div>"
html+="<div class='p1' style='height:1px;overflow:hidden;background:#FEEACB;width:298px;border-left:1px solid red;border-right:1px solid red;'></div>"
html+="<div class='p2' style='height:1px;overflow:hidden;background:#FEEACB;width:296px;border-left:1px solid red;border-right:1px solid red;'></div>"
html+="<div class='p3' style='height:1px;overflow:hidden;background:red;width:294px;border-left:1px solid red;border-right:1px solid red'></div>"
html+="</center>"
document.body.appendChild(p1);
p1.innerHTML=html;
var arr=document.getElementsByTagName("select");
var i=0;
while(i<arr.length){
arr[i].style.visibility='hidden';
i++;
}
this.cancle=function(){
document.body.removeChild(document.getElementById('p'));
document.body.removeChild(document.getElementById('p1'));
var arr=document.getElementsByTagName("select");
var i=0;
while(i<arr.length){
arr[i].style.visibility='visible';
i++;
}
}
}
</script>
<input value='shout Down' type='button' onClick='msg()' />



--需要修改