var speed3=25//速度数值越大速度越慢
imgdemo_2.innerHTML=imgdemo_1.innerHTML
function imgMarquee(){
if(imgdemo_2.offsetWidth-imgdemox.scrollLeft<=0)
imgdemox.scrollLeft-=imgdemo_1.offsetWidth
else{
imgdemox.scrollLeft++
}
}
var imgMyMar=setInterval(imgMarquee,speed3)
imgdemox.onmouseover=function() {clearInterval(imgMyMar)}
imgdemox.onmouseout=function() {imgMyMar=setInterval(imgMarquee,speed3)}