var speed=10;var tab=document.getElementById("case_content");var tab1=document.getElementById("case_content1");var tab2=document.getElementById("case_content2");tab2.innerHTML=tab1.innerHTML;function Marquee(){if(tab2.offsetWidth-tab.scrollLeft<=0)tab.scrollLeft-=tab1.offsetWidth
else{tab.scrollLeft++;}}var MyMar=setInterval(Marquee,speed);tab.onmouseover=function(){clearInterval(MyMar)};tab.onmouseout=function(){MyMar=setInterval(Marquee,speed)};