javascript 单行文字向上跑马灯滚动显示

代码如下：
<html> <head> <script type="text/javascript"><!-- function startmarquee(lh,speed,delay) { var p=false; var t; var sh; var o=document.getElementById("marqueebox"); o.innerHTML+=o.innerHTML; o.style.marginTop=0; o.onmouseover=function(){p=true;} o.onmouseout=function(){p=false;} function start(){ sh = o.offsetHeight; o.style.height = sh; t=setInterval(scrolling,speed); if(!p) o.style.marginTop=parseInt(o.style.marginTop)-1+"px"; } function scrolling(){ if(parseInt(o.style.marginTop)%lh!=0){ o.style.marginTop=parseInt(o.style.marginTop)-1+"px"; if(Math.abs(parseInt(o.style.marginTop))>=sh/2) o.style.marginTop=0; }else{ clearInterval(t); setTimeout(start,delay); } } setTimeout(start,delay); } // --></script> </head> <body> 脚本之家 服务器常用软件 百度 浏览器 </body> <script type="text/javascript"><!-- startmarquee(18,20,3000); // --></script> </html>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]