具体代码如下：
<!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>code.js.cn </title>
<style>
a
{
display: block;
font-size: 15px;
line-height: 18px;
text-decoration: none;
color: #333;
font-family: Arial;
font-size: 12px;
}
.shell
{
background:no-repeat 4px 5px;
border: 1px solid #aaa;
width: 400px;
padding: 3px 2px 2px 20px;
}
#div1
{
height: 36px;
overflow: hidden;
}
</style>
</head>
<body>
<div class="shell">
<div id="div1">
<a>这是</a>
<a>我的</a>
<a>第一篇</a>
<a>博客</a>
</div>
</div>
</body>
<script>
var c, _ = Function;
with (o = document.getElementById("div1")) { innerHTML += innerHTML; onmouseover = _("c=1"); onmouseout = _("c=0"); }
(F = _("if(#%18||!c)#++,#%=o.scrollHeight>>1;setTimeout(F,#%18?10:3000);".replace(/#/g, "o.scrollTop")))();
</script>
</html>
滚动频率由setTimeout(F,#%18?10:3000)这个3000来控制。