// 首页产品向左测展示


                var speed=30 
                marquePic2.innerHTML=marquePic1.innerHTML 
                function Marquee(){ 
                if(demo.scrollLeft>=marquePic1.scrollWidth){ 
                demo.scrollLeft=0 
                }else{ 
                demo.scrollLeft++ 
                }} 
                var MyMar=setInterval(Marquee,speed) 
                demo.onmouseover=function() {clearInterval(MyMar)} 
                demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}