javascript怎么实现浮动窗口

javascript实现浮动窗口的方法：首先创建HTML文件；然后通过“function showFAd(){...}”方法打开浮动广告；最后通过“function showFloat(){...}”方法实现打开浮动窗口即可。

本文操作环境：windows7系统、javascript1.8.5版、Dell G3电脑。

javascript怎么实现浮动窗口？

具体如下：

HTML部分：

<!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=utf-8 />
<title>无标题文档</title>
<style type=text/css>
*{ margin:0; padding:0;}
a img{ border:0;}
</style>
</head>
<body>
<div style=height:2000px; background:#ccc; display:none;>
</div>
<!--div id=floatAd style= position:fixed !important; position:absolute; _top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight)); z-index: 2147483647; left: 50%; margin-left: -240px !important; top: 50%; margin-top: -210px !important; background:url(images/onlineSay.jpg) no-repeat; width:487px; height:350px; cursor:pointer;>
<div onclick=closeFAd(); style= width:26px; height:26px; float:right;></div>
<div style=width:487px; height:320px; float:right; onclick=open_online();></div>
</div>
<div id=floatSide style= width:141px; height:579px; position:fixed !important; position:absolute; _top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight)); z-index: 99999; right:0; top:6%; background:url(images/onlineTel.gif);cursor:pointer; onclick=open_online();></div-->
</body>
</html>
<script type=text/javascript src=online.js></script>

JS部分：

// JavaScript Document
//浮动广告图片
var floatAdImg = images/onlineSay.jpg;
//浮动侧栏图片
var floatSideImg = images/onlineTel.gif;
//打开在线沟通
function open_online()
{
 window.open('http://p.qiao.baidu.com//im/index?siteid=7342332&ucid=7601325');
}
//浮动广告
document.writeln(<div id=\floatAd\ style=\ position:fixed !important; position:absolute; _top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight)); z-index: 2147483647; left: 50%; margin-left: -240px !important; top: 50%; margin-top: -210px !important; background:url(+floatAdImg+) no-repeat; width:487px; height:350px; cursor:pointer; display:none; \>);
document.writeln(<div onclick=\closeFAd();\ style=\ width:26px; height:26px; float:right;\></div>);
document.writeln(<div style=\width:487px; height:320px; float:right;\ onclick=\open_online();\></div>);
document.writeln(</div>);
//浮动侧栏
document.writeln(<div style=\ width:141px; height:579px; position:fixed !important; position:absolute; _top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight)); z-index: 99999; right:0; top:6%; background:url(+floatSideImg+);cursor:pointer;\ onclick=\open_online();\></div>);
//关闭浮动广告
function closeFAd()
{
 document.getElementById('floatAd').style.display = 'none';
}
//打开浮动广告
function showFAd()
{
 document.getElementById('floatAd').style.display = 'block';
}
//打开浮动窗口
function showFloat()
{
 document.getElementById('floatAd').style.display = 'block';
}
//打开窗口 20 秒仅执行一次
setTimeout(showFAd,20000);
//每个 30 秒执行一次
setInterval(showFloat,30000);

效果图如下：

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javascript怎么实现浮动窗口

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