$(document).ready(function(){
$('#tuandui ul li').hover(function(){
	$(this).addClass('ac');
	},function(){$(this).removeClass('ac')})
	
	$('#'+ceng).hover(function(){
					clearInterval(my1);
					clearInterval(my2);
					dong=1;
										   },function(){
					if(ji==1){my1=setInterval(huadong1,speed);}
					if(ji==2){my2=setInterval(huadong2,speed);}
					dong=0;
										   } )   
						   })
						   
						   function gundong(){
var speed=12; //数字越大速度越慢
var taba=document.getElementById("demoa");
var tab1a=document.getElementById("demo1a");
var tab2a=document.getElementById("demo2a");
tab2a.innerHTML=tab1a.innerHTML;
function Marquee(){
if(tab2a.offsetWidth-taba.scrollLeft<=0)
taba.scrollLeft-=tab1a.offsetWidth
else{
taba.scrollLeft++;
}
}
var MyMar=setInterval(Marquee,speed);
taba.onmouseover=function() {clearInterval(MyMar)};
taba.onmouseout=function() {MyMar=setInterval(Marquee,speed)};
}



var num=0;
var num2=0;
var my1;
var my2;
var ge;
var speed;
var dong=0;
var ceng;
var jianju;
var ji=1;

	function huadong(i,speed2,div,margin)
{        ge=i;
          speed=speed2;
		  ceng=div;
		  jianju=margin;
		 my1=setInterval(huadong1,speed2);
}
function huadong1()
{
	var m=$('#'+ceng+' ul li').length-ge;
	if(num<m)
	{
	var wid=$('#'+ceng+' ul li:eq('+num+')').width()+jianju;
    num2+=wid;
	$('#'+ceng+' ul').animate({'margin-left':'-'+num2+'px'},'slow');
	num++;
	}
	if(num==m&&dong==0){clearInterval(my1);clearInterval(my2);my2=setInterval(huadong2,speed);ji=2;}
	
}
	function huadong2()
{
	if(num>=1)
	{
			num--;
	var wid=$('#'+ceng+' ul li:eq('+num+')').width()+jianju;
    num2-=wid;
	$('#'+ceng+' ul').animate({'margin-left':'-'+num2+'px'},'slow');
	}	
	if(num<1&&dong==0){clearInterval(my2);clearInterval(my1);my1=setInterval(huadong1,speed);ji=1;}
}