公告

JavaScript锁屏遮罩

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JavaScript锁屏</title>
<style type="text/css">
body {
    font-size:12px
}
#Screen {
    position:absolute;
    z-index: 9998;
    top: 0px;
    left: 0px;
    background: #000000;
    display: none;
    filter: alpha(Opacity=30);
    -moz-opacity:0.30;
}
#Message {
    position: absolute;
    z-index: 9999;
    display: none;
}
</style>
<script language="javascript">
// 获取宽度
function getWidth()
{
    var strWidth,clientWidth,bodyWidth;
    clientWidth = document.documentElement.clientWidth;
    bodyWidth = document.body.clientWidth;
    if(bodyWidth > clientWidth){
        strWidth = bodyWidth + 20;
    } else {
        strWidth = clientWidth;
    }
    return strWidth;
}
//获取高度
function getHeight()
{
    var strHeight,clientHeight,bodyHeight;
    clientHeight = document.documentElement.clientHeight;
    bodyHeight = document.body.clientHeight;
    if(bodyHeight > clientHeight){
        strHeight = bodyHeight + 30;
    } else {
        strHeight = clientHeight;
    }
    return strHeight+1000;
}
// 锁屏
function showScreen()
{
    var Msg = document.getElementById('Message');
    var Bg = document.getElementById('Screen');
    Bg.style.width = getWidth()+'px';
    Bg.style.height = getHeight()+'px';
    document.getElementById('Message').style.left=(document.body.clientWidth/2)-200+"px"; // alert(screen.height/2-240);
    document.getElementById('Message').style.top=screen.height/2-240+"px";
    Msg.style.display = 'block';
    Bg.style.display = 'block';
}
//解屏
function hideScreen()
{
    var Msg = document.getElementById('Message');
    var Bg = document.getElementById('Screen');
    Msg.style.display = 'none';
    Bg.style.display = 'none';
}
</script>
</head>
<body>
<div id="Message" style="border:#00BFFF solid 1px; background:#FFFFFF; width:400px; height:100px"><span style="cursor:pointer;" onclick="javascript:hideScreen();">关闭</span>
</div>
<div id="Screen"></div>
<p><span style="cursor:pointer;" onclick="javascript:showScreen();">锁屏</span></p>
<script language="javascript">showScreen();</script>
<p> </p>
<form id="form1" name="form1" method="post" action="">
ddddd
<select name="select">
    <option>adfsda</option>
</select>
</form>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
</body>
</html>

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>弹出提示</title>
<style>
* {margin:0;padding:0;font-size:12px;}
html,body {height:100%;width:100%;}
#content {background:#f8f8f8;padding:30px;height:100%;}
#content a {font-size:30px;color:#369;font-weight:700;}
#alert {border:1px solid #369;width:300px;height:150px;background:#e2ecf5;z-index:1000;position:absolute;display:none;}
#alert h4 {height:20px;background:#369;color:#fff;padding:5px 0 0 5px;}
#alert h4 span {float:left;}
#alert h4 span#close {margin-left:210px;font-weight:500;cursor:pointer;}
#alert p {padding:12px 0 0 30px;}
#alert p input {width:120px;margin-left:20px;}
#alert p input.myinp {border:1px solid #ccc;height:16px;}
#alert p input.sub {width:60px;margin-left:30px;}
</style>
</head>
<body>
<div id="content">
<a href="#">注册</a>
</div>
<div id="alert">
<h4><span>现在注册</span><span id="close">关闭</span></h4>
<p><label>用户名</label><input type="text" class="myinp" onmouseover="this.style.border='1px solid #f60'"

onfoucs="this.style.border='1px solid #f60'" onblur="this.style.border='1px solid #ccc'" /></p>
<p><label>密　码</label><input type="password" class="myinp" onmouseover="this.style.border='1px solid #f60'"

onfoucs="this.style.border='1px solid #f60'" onblur="this.style.border='1px solid #ccc'" /></p>
<p><input type="submit" value="注册" class="sub" /><input type="reset" value="重置" class="sub" /></p>
</div>
<script type="text/javascript">

var myAlert = document.getElementById("alert");
var reg = document.getElementById("content").getElementsByTagName("a")[0];
var mClose = document.getElementById("close");
reg.onclick = function()
{
myAlert.style.display = "block";
myAlert.style.position = "absolute";
myAlert.style.top = "50%";
myAlert.style.left = "50%";
myAlert.style.marginTop = "-75px";
myAlert.style.marginLeft = "-150px";
mybg = document.createElement("div");
mybg.setAttribute("id","mybg");
mybg.style.background = "#000";
mybg.style.width = "100%";
mybg.style.height = "100%";
mybg.style.position = "absolute";
mybg.style.top = "0";
mybg.style.left = "0";
mybg.style.zIndex = "500";
mybg.style.opacity = "0.3";
mybg.style.filter = "Alpha(opacity=30)";
document.body.appendChild(mybg);

document.body.style.overflow = "hidden";
}
mClose.onclick = function()
{
myAlert.style.display = "none";
mybg.style.display = "none";
}
</script>
</body>
</html>

posted on 2010-03-25 14:41 bingyu 阅读(845) 评论(0) 收藏举报

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公告

JavaScript锁屏 遮罩

JavaScript锁屏遮罩