Js+CSS实现的间断和不间断文本滚动代码

<!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>Js+CSS间断和不间断文本滚动代码</title> 
<meta http-equiv="content-type" content="text/html;charset=gb2312"> 
<style type="text/css"> 
.box{width:150px;height:25px;line-height:25px;border:#bbb 1px solid;overflow:hidden;} 
.box ul{margin:0;padding:0} 
.box li{height:25px;line-height:25px;font-size:12px;text-align:center;list-style-type:none;} 
</style> 
</head> 
<body> 
 
<ul> 
<li style="background:#f8e2ac;">第一行</li> 
<li style="background:#f5f5f5;">第二行</li> 
<li style="background:#ffe6ec;">第三行</li> 
</ul> 
<br> 
 
<ul> 
<li style="background:#f8e2ac;">第一行</li> 
<li style="background:#f5f5f5;">第二行</li> 
<li style="background:#ffe6ec;">第三行</li> 
</ul> 
 
<script type="text/javascript"> 
function startmarquee(lh,speed,delay,index){ 
var t; 
var p=false; 
var o=document.getElementById("marqueebox"+index); 
o.innerHTML+=o.innerHTML; 
o.onmouseover=function(){p=true} 
o.onmouseout=function(){p=false} 
o.scrollTop = 0; 
function start(){ 
t=setInterval(scrolling,speed); 
if(!p){ o.scrollTop += 1;} 
} 
function scrolling(){ 
if(o.scrollTop%lh!=0){ 
o.scrollTop += 1; 
if(o.scrollTop>=o.scrollHeight/2) o.scrollTop = 0; 
}else{ 
clearInterval(t); 
setTimeout(start,delay); 
} 
} 
setTimeout(start,delay); 
} 
startmarquee(25,30,3000,0); 
startmarquee(25,40,0,1); 
</script> 
</body> 
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]