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";
}
}


//<![CDATA[
var curFrame=1;//当前标签
var frameheight = 85;//单层高度
var speed = 5;//滚动速度
var waitTime = 4000;//自动播放间隔时间
var scrollItv;
var autoItv;
var maindiv = document.getElementById("main");
//autoItv = setInterval(autoSlide, waitTime);
function slideTo(id){
	curFrame = id;
	var curTop = maindiv.scrollTop;
	var tarTop = frameheight*(id-1);
	var step = curTop>tarTop?-speed:speed;
	clearInterval(autoItv);
	clearInterval(scrollItv);
	scrollItv = setInterval(function(){
		maindiv.scrollTop += step;
		if(Math.abs(maindiv.scrollTop-tarTop)<speed){
			clearInterval(scrollItv);
			maindiv.scrollTop = tarTop;
			autoItv = setInterval(autoSlide, waitTime);
		}
	},20);
	for(i=1;i<=4;i++){
		document.getElementById('led'+i).className='NUM1';
	}
	document.getElementById('led'+curFrame).className='NUM2';
}
function autoSlide(){
	if(curFrame<4){curFrame++;}else{curFrame=1;}
	slideTo(curFrame);
}
//]]>