// scroll
var speed=30; //数字越大速度越慢 
var xscroll=document.getElementById("scroll"); 
var xscroll1=document.getElementById("scroll1"); 
var xscroll2=document.getElementById("scroll2"); 
xscroll2.innerHTML=xscroll1.innerHTML; 
function Marquee() { 
if(xscroll2.offsetWidth-xscroll.scrollLeft<=0) { xscroll.scrollLeft-=xscroll1.offsetWidth } else { xscroll.scrollLeft++; } 
} 
var MyMar=setInterval(Marquee,speed); 
xscroll.onmouseover=function() { clearInterval(MyMar) }; 
xscroll.onmouseout=function() { MyMar=setInterval(Marquee,speed) };