怎么让整个页面不可用

如何让整个页面不可用？
disabled设为true可以变成灰色
但是还可以响应各种事件，可以点击

如果让页面不可用，就像弹出了模态对话框那样

[解决办法]
用一个Iframe把屏幕占满
[解决办法]
用div把整个页面盖住就行.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN " "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns= "http://www.w3.org/1999/xhtml " xml:lang= "zh-CN " lang= "zh-CN ">
<head>
<meta name= "verify-v1 " content= "P4T6fFCiPVxqMWZ2eztyXVzMHlnwD0wLQOq6LBHN5Y8= " />
<title>
政策文件_中国电力工程造价信息网 </title>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 " />
<meta http-equiv= "Content-Language " content= "gb2312 " />
<meta name= "KeyWords " content= "电力工程造价,价格信息,装材,设备,电力工程 " />
<meta name= "description " content= "电力工程造价信息 " />
<style type= "text/css ">
*{
margin:0;padding:0;
}
</style>
</head>
<body>

<div class= "cecmbody " id= "cecmpolicy ">
<div class= "leftClass ">

 测试 测试 
 测试 测试 测试 测试 测试 
 测试 测试 测试 测试 测试 测试 测试 测试 
 测试 测试 测试 测试 
 测试 测试 测试 测试 测试 测试 测试 测试 
 测试 测试 测试 测试 
 测试 测试 测试 测试 测试 测试 测试 测试 
<input type= "button " value= "点击这里 " onclick= "sAlert( 'Microsoft Windows XP ',this); " /> 测试 测试 测试 测试 
 测试 测试 测试 测试 测试 测试 测试 测试 
 测试 测试 测试 测试 
 测试 测试 测试 测试 测试 测试 测试 测试 
 测试 测试 测试 测试 
 测试 测试 测试 测试 测试 测试 测试 测试 

</div>

<script type= "text/javascript " 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;\ "> [系统提示] </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);
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*100;
}else{
obj.style.filter= "alpha(opacity=\ " "+(opacity*100)+ "\ ") ";
}
}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(){
//alertFram.style.display = "none ";
//shield.style.display = "none ";
document.body.removeChild(alertFram);
document.body.removeChild(shield);
eSrc.focus();
document.body.onselectstart = function(){return true;}
document.body.oncontextmenu = function(){return true;}
}
document.getElementById( "do_OK ").focus();
eSrc.blur();
document.body.onselectstart = function(){return false;}
document.body.oncontextmenu = function(){return false;}
}
</script>
</body>
</html>
[解决办法]
function lockScreen(){
var oPop = document.createElement( "DIV ");
var x,y,w,h;
x = 0;
y = 0;
w = screen.availWidth;
h = screen.availHeight;
oPop.style.position = "absolute ";
oPop.style.top = 0;
oPop.style.left = 0;
oPop.style.width = w;

oPop.style.height = h;
oPop.style.zIndex = 10000;
oPop.style.backgroundColor = "gray ";
oPop.style.filter = "alpha(opacity=50) ";
document.body.insertAdjacentElement( "beforeEnd ",oPop);
oPop.setCapture();
}
[解决办法]
禁止事件冒泡，将所有事件的returnValue=false

怎么让整个页面不可用

热点推荐