var speed=60 gundongpic2.innerHTML=gundongpic1.innerHTML function Marquee(){ if(gundongpic2.offsetWidth-gundongpic.scrollLeft<=0) gundongpic.scrollLeft-=gundongpic1.offsetWidth else{ gundongpic.scrollLeft++ } } var MyMar=setInterval(Marquee,speed) gundongpic.onmouseover=function() {clearInterval(MyMar)} gundongpic.onmouseout=function() {MyMar=setInterval(Marquee,speed)}