js文字列表无缝向上滚动代码

2016-01-23 网页编程网 网页编程网

<!DOCTYPE html><html><head><meta charset="utf-8">
<title>文字列表无缝向上滚动代码</title>
<style type="text/css">
*{
margin:0px;
padding:0px;
border:0px;
}
body{font-size:12px}
#demo{
overflow:hidden;
height:80px;
width:280px;
margin:90px auto;
position:relative;
}
#demo1{
height:auto;
text-align:left;
}
#demo2{
height:auto;
text-align:left;
}
#demo1 li{
list-style-type:none;
height:22px;
text-align:left;
text-indent:15px;
}
#demo2 li{
list-style-type:none;
height:22px;
text-align:left;
text-indent:15px;
}
</style>
<script type="text/javascript"> 
var speed=40 
window.onload=function(){
var demo=document.getElementById("demo"); 
var demo2=document.getElementById("demo2"); 
var demo1=document.getElementById("demo1"); 
demo2.innerHTML=demo1.innerHTML 
function Marquee(){ 
if(demo.scrollTop>=demo1.offsetHeight){
demo.scrollTop=0; 
}
else{ 
demo.scrollTop=demo.scrollTop+1;
} 
} 
var MyMar=setInterval(Marquee,speed) 
demo.onmouseover=function(){clearInterval(MyMar)} 
demo.onmouseout=function(){MyMar=setInterval(Marquee,speed)} 
}
</script>
</head>
<body>
<div id="demo">
<ul id="demo1">
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</ul>
<div id="demo2"></div>
</div>
</body></html>

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