var speed=50//速度数值越大速度越慢 
jinqi2.innerHTML=jinqi1.innerHTML 
function Marquee(){ 
if(jinqi.scrollLeft<=0) 
jinqi.scrollLeft+=jinqi2.offsetWidth 
else{ 
jinqi.scrollLeft-- 
} 
} 
var MyMar=setInterval(Marquee,speed) 
jinqi.onmouseover=function() {clearInterval(MyMar)} 
jinqi.onmouseout=function() {MyMar=setInterval(Marquee,speed)}