源码下载：网站被封了，源码下载不了，但是这个源码很简单，相信有点基础的人都知道怎样用。
floatAd.js代码如下：
var lastScrollY=0;//滚动条距顶部位置
function heartBeat(){
var diffY;
if (document.documentElement && document.documentElement.scrollTop)
diffY = document.documentElement.scrollTop;
else if (document.body)
diffY = document.body.scrollTop
else
{/*Netscape stuff*/}
percent=.1*(diffY-lastScrollY);
if(percent>0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.getElementById("gvRightAd").style.top=parseInt(document.getElementById("gvRightAd").style.top)+percent+"px";
lastScrollY=lastScrollY+percent;
}
window.setInterval("heartBeat()",100);//每0.1秒钟执行一次
调用：function heartBeat(){
var diffY;
if (document.documentElement && document.documentElement.scrollTop)
diffY = document.documentElement.scrollTop;
else if (document.body)
diffY = document.body.scrollTop
else
{/*Netscape stuff*/}
percent=.1*(diffY-lastScrollY);
if(percent>0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.getElementById("gvRightAd").style.top=parseInt(document.getElementById("gvRightAd").style.top)+percent+"px";
lastScrollY=lastScrollY+percent;
}
window.setInterval("heartBeat()",100);//每0.1秒钟执行一次
<!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>
<title>最简单明了的QQ在线客服代码</title>
<script type="text/javascript" src="style/floatAd.js"></script>
</head>
<body style="height:1000px;">
<div id="gvRightAd" style='right:50px;POSITION:absolute;TOP:230px;text-align:center;117px;'>
<table style="117px;" cellpadding="0" cellspacing="0">
<tr>
<td><img src="images/qq/qqbg1.gif" alt="" /></td>
</tr>
<tr>
<td style="background:url(images/qq/qqbg2.gif) repeat-y;">
<div><!--这里的QQ代码请到http://imis.qq.com/webpresence/code.shtml申请-->
<a href="http://sighttp.qq.com/cgi-bin/check?sigkey=7cd7c4f0fe8acae47af475bfd5864dd2a9910c5e16692240f96d1d9343fa6e82b8685b01340a0c99b5f625bc523faf6d34ae463cf21aba0e"; target=_blank; onclick="var tempSrc='http://sighttp.qq.com/wpa.js?rantime='+Math.random()+'&sigkey=7cd7c4f0fe8acae47af475bfd5864dd2a9910c5e16692240f96d1d9343fa6e82b8685b01340a0c99b5f625bc523faf6d34ae463cf21aba0e';var oldscript=document.getElementById('testJs');var newscript=document.createElement('script');newscript.setAttribute('type','text/javascript'); newscript.setAttribute('id', 'testJs');newscript.setAttribute('src',tempSrc);if(oldscript == null){document.body.appendChild(newscript);}else{oldscript.parentNode.replaceChild(newscript, oldscript);}return false;"><img border="0" SRC='http://wpa.qq.com/pa?p=1:1090126549:1' alt="张老师"></a>
</div>
<div><a href="http://sighttp.qq.com/cgi-bin/check?sigkey=7cd7c4f0fe8acae4d6822fba4ae9ad0363e4805f0a646f849ad95f6a69ffc6c52caf5f5505cbbaa4d5666e4f402e1f9177da136fadfad826"; target=_blank; onclick="var tempSrc='http://sighttp.qq.com/wpa.js?rantime='+Math.random()+'&sigkey=7cd7c4f0fe8acae4d6822fba4ae9ad0363e4805f0a646f849ad95f6a69ffc6c52caf5f5505cbbaa4d5666e4f402e1f9177da136fadfad826';var oldscript=document.getElementById('testJs');var newscript=document.createElement('script');newscript.setAttribute('type','text/javascript'); newscript.setAttribute('id', 'testJs');newscript.setAttribute('src',tempSrc);if(oldscript == null){document.body.appendChild(newscript);}else{oldscript.parentNode.replaceChild(newscript, oldscript);}return false;"><img border="0" SRC='http://wpa.qq.com/pa?p=1:1131441761:1' alt="王老师"></a>
</div>
</td>
</tr>
<tr>
<td><img src="images/qq/qqbg3.gif" alt="" /></td>
</tr>
</table>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>最简单明了的QQ在线客服代码</title>
<script type="text/javascript" src="style/floatAd.js"></script>
</head>
<body style="height:1000px;">
<div id="gvRightAd" style='right:50px;POSITION:absolute;TOP:230px;text-align:center;117px;'>
<table style="117px;" cellpadding="0" cellspacing="0">
<tr>
<td><img src="images/qq/qqbg1.gif" alt="" /></td>
</tr>
<tr>
<td style="background:url(images/qq/qqbg2.gif) repeat-y;">
<div><!--这里的QQ代码请到http://imis.qq.com/webpresence/code.shtml申请-->
<a href="http://sighttp.qq.com/cgi-bin/check?sigkey=7cd7c4f0fe8acae47af475bfd5864dd2a9910c5e16692240f96d1d9343fa6e82b8685b01340a0c99b5f625bc523faf6d34ae463cf21aba0e"; target=_blank; onclick="var tempSrc='http://sighttp.qq.com/wpa.js?rantime='+Math.random()+'&sigkey=7cd7c4f0fe8acae47af475bfd5864dd2a9910c5e16692240f96d1d9343fa6e82b8685b01340a0c99b5f625bc523faf6d34ae463cf21aba0e';var oldscript=document.getElementById('testJs');var newscript=document.createElement('script');newscript.setAttribute('type','text/javascript'); newscript.setAttribute('id', 'testJs');newscript.setAttribute('src',tempSrc);if(oldscript == null){document.body.appendChild(newscript);}else{oldscript.parentNode.replaceChild(newscript, oldscript);}return false;"><img border="0" SRC='http://wpa.qq.com/pa?p=1:1090126549:1' alt="张老师"></a>
</div>
<div><a href="http://sighttp.qq.com/cgi-bin/check?sigkey=7cd7c4f0fe8acae4d6822fba4ae9ad0363e4805f0a646f849ad95f6a69ffc6c52caf5f5505cbbaa4d5666e4f402e1f9177da136fadfad826"; target=_blank; onclick="var tempSrc='http://sighttp.qq.com/wpa.js?rantime='+Math.random()+'&sigkey=7cd7c4f0fe8acae4d6822fba4ae9ad0363e4805f0a646f849ad95f6a69ffc6c52caf5f5505cbbaa4d5666e4f402e1f9177da136fadfad826';var oldscript=document.getElementById('testJs');var newscript=document.createElement('script');newscript.setAttribute('type','text/javascript'); newscript.setAttribute('id', 'testJs');newscript.setAttribute('src',tempSrc);if(oldscript == null){document.body.appendChild(newscript);}else{oldscript.parentNode.replaceChild(newscript, oldscript);}return false;"><img border="0" SRC='http://wpa.qq.com/pa?p=1:1131441761:1' alt="王老师"></a>
</div>
</td>
</tr>
<tr>
<td><img src="images/qq/qqbg3.gif" alt="" /></td>
</tr>
</table>
</div>
</body>
</html>