function setTab(name,cursel,n){
for(i=1;i<=n;i++){
var menu=document.getElementById(name+"_"+i);
var con=document.getElementById("con_"+name+"_"+i);
menu.className=i==cursel?"hover":"";
con.style.display=i==cursel?"block":"none";
}
}

var num=1;
function count1() {
  	setTab('tabs_1',num,3); 	
	}
function count2() {		
  	setTab('tabs_2',num,3);	
	}
function count() {
//	alert(num);
if(num>3) num=1;
count1();
count2();
num++;
}

setInterval("count()",5000);