// JavaScript Document
var speed=30; //数字越大速度越慢
var tab=document.getElementById("demo");
var tab1=document.getElementById("demo1");
var tab2=document.getElementById("demo2");
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)};

var tabs=document.getElementById("demos");
var tab1s=document.getElementById("demo1s");
var tab2s=document.getElementById("demo2s");
tab2s.innerHTML=tab1s.innerHTML;
function Marquees(){
if(tab2s.offsetWidth-tabs.scrollLeft<=0)
tabs.scrollLeft-=tab1s.offsetWidth
else{
tabs.scrollLeft++;
}
}
var MyMars=setInterval(Marquees,speed);
tabs.onmouseover=function() {clearInterval(MyMars)};
tabs.onmouseout=function() {MyMars=setInterval(Marquees,speed)};