单行文字水平向右滚动js实现

<mce:script type="text/javascript"><!--  

var speed=30  
var MyMar=setInterval(Marquee,speed)  
demo2.innerHTML=demo1.innerHTML  
demo.onmouseover=function() {clearInterval(MyMar)}   
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}  
function Marquee(){   
if(demo.scrollLeft<=0)   
   demo.scrollLeft+=demo2.offsetWidth   
else{   
   demo.scrollLeft--   
}   
}   
// --></mce:script>  

来源http://blog.csdn.net/fleplf/article/details/5634337

仅供参考，需要不少的修改