//ÎÄ×Ö¹ö¶¯²¿·Ö
var speedtxt=40
var demox=document.getElementById("demox");
var demoz=document.getElementById("demoz");
var demoy=document.getElementById("demoy");
demoz.innerHTML=demoy.innerHTML
function Marqueetxt(){
 if(demoz.offsetTop-demox.scrollTop<=0)
  demox.scrollTop-=demoy.offsetHeight
 else{
  demox.scrollTop++
 }
}
var MyMartxt=setInterval(Marqueetxt,speedtxt)
demox.onmouseover=function() {clearInterval(MyMartxt)}
demox.onmouseout=function() {MyMartxt=setInterval(Marqueetxt,speedtxt)}