文字列表无缝向上滚动JavaScript代码

<!DOCTYPE html>
<html>
<head>
<meta  charset=utf-8>
<title>文字列表无缝向上滚动JavaScript代码-代码库</title>

<style>
*{margin:0px;padding:0px;border:0px;}
body{font-size:12px}
a{color:#333333; text-decoration:none;}
a:hover{color:#FF0000; text-decoration:none;}
#demo1{
height:auto;
text-align:left;
}
#demo2{
height:auto;
text-align:left;
}
#demo1  li{
list-style-type:none;
height:22px;
background:url() no-repeat left center;
text-align:left;
text-indent:15px;
}
#demo2  li{
list-style-type:none;
height:22px;
background:url() no-repeat left center;
text-align:left;
text-indent:15px;
}
</style>
</head>
<body>
<div id="demo" style="overflow:hidden;height:125px;280px;">
    <ul id="demo1">  
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    </ul> 
    <div id="demo2"></div>
</div> 
<script> 
 

var speed = 80   //速度
 

var demo=document.getElementById("demo"); 
var demo2=document.getElementById("demo2"); 
var demo1=document.getElementById("demo1"); 


demo2.innerHTML=demo1.innerHTML

function Marquee(){
 
    if(demo2.offsetTop-demo.scrollTop <= 0){ 
      demo.scrollTop -= demo1.offsetHeight 
    }else{ 
      demo.scrollTop++
    } 

} 
var MyMar=setInterval(Marquee,speed)     

demo.onmouseover=function() {clearInterval(MyMar)}   //停止

demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}   //从新开始


</script> 
</body>
</html>
人如代码，规矩灵活；代码如诗，字句精伦。