function fenlei(x)
	{
		var idd2="table"+x;
		document.getElementById(idd2).style.background="url(images/list_menu_over.gif)"
		for(i=1;i<=99;i++)
		{
			if(i != x)
			{
				var idd="table"+i;
				document.getElementById(idd).style.background="url(images/list_menu_out.gif)"
			}
		}
		
	}
	function xiaosi(x)
	{
		var idt="table"+x;
		document.getElementById(idt).style.background="url(images/list_menu_out.gif)"
	}
	
		function xianshi(x)
	{
		var idd2="divs"+x;
		var y="a"+x;
		document.getElementById(idd2).style.display="block";
		document.getElementById(y).style.background="url(images/ar_menu2.gif)";
		for(i=1;i<=5;i++)
		{
			if(i != x)
			{
				var idd="divs"+i;
				document.getElementById(idd).style.display="none";
				var a="a"+i;
				document.getElementById(a).style.background="url(images/ar_menu1.gif)";
			}
		}
		
	}