/*滚动1*/
function scro(){
var speed=30//速度数值越大速度越慢
var xx = function(i){return document.getElementById(i);}
xx("marquePic2").innerHTML=xx("marquePic1").innerHTML
function Marquee3(){
if(xx("marquePic2").offsetWidth-xx("demo").scrollLeft<=0)
xx("demo").scrollLeft-=xx("marquePic1").offsetWidth
else{
xx("demo").scrollLeft++
}
}
var MyMar3=setInterval(Marquee3,speed)
xx("demo").onmouseover=function() {clearInterval(MyMar3)}
xx("demo").onmouseout=function() {MyMar3=setInterval(Marquee3,speed)}

}