var n=0;
		var img_list="";
		var next_btn="";
		//切换代码
		window.onload=function(){
			window.img_list=weeband$getChildList("images_list","div")//用于切换DIV区域
		//var con_str_list=weeband$getChildList("con_str_list","div")//用户切换文字
			window.next_btn=weeband$getChildList("next_btn","div")
			setAuto();
			}
		function switchDiv(a_sign,div_sign,showNum,allNum,on_className,old_className){//a_sign:当前按钮标示  ；div_sign：DIV标识；showNum：显示的ID  ；allNum:ID个数 ； on_className:移到时间的；old_className,原class   
			for (i=1;i<allNum+1;i++){
			weeband$(a_sign+''+i).className=old_className;
			weeband$(div_sign+''+i).style.display='none';}
			weeband$(a_sign+''+showNum).className=on_className;
			weeband$(div_sign+''+showNum).style.display='block';
		}
		function weeband$(id){return document.getElementById(id);}
		function weeband$getChildList(id,tag){return weeband$(id).getElementsByTagName(tag);}
		function Mea(value){
			n=value;
			setBg(value);
			plays(value);
			cons(value);
			}
		function setBg(value){for(var i=0;i<img_list.length;i++)i==value?next_btn[i].className='but_on':next_btn[i].className='but_off'} 
		function plays(value){
			try
			{
				with (images_list)
				{
					filters[0].Apply();
					for(i=0;i<img_list.length;i++)i==value?children[i].style.display="block":children[i].style.display="none"; 
					filters[0].play(); 
				}
			}
			catch(e)
			{
				for(i=0;i<img_list.length;i++)i==value?img_list[i].style.display="block":img_list[i].style.display="none";
			}
		
			
		}
		function cons(value){
			try
			{
				//with (con_str_list)
				//{
				//		for(i=0;i<img_list.length;i++)i==value?children[i].style.display="block":children[i].style.display="none"; 		
				//}
			}
			catch(e)
			{
				//for(i=0;i<img_list.length;i++)i==value?con_str_list[i].style.display="block":con_str_list[i].style.display="none";
			}
		}
		
		function clearAuto(){clearInterval(autoStart)}
		function setAuto(){autoStart=setInterval("auto(n)", 3000)}
		function auto(){
			n++;
			if(n>(img_list.length-1))n=0;
			Mea(n);
		} 
		function sub(){
			n--;
			if(n<0)n=img_list.length-1;
			Mea(n);
		}