function BtHide(id)
	{
		var Div = document.getElementById(id);
		if (Div)
		{
			Div.style.display = "none";
		}
	}
	function BtShow(id)
	{
		var Div = document.getElementById(id);
		if (Div)
		{
			Div.style.display = "block";
		}
	}
	function BtTabRemove(index, head, divs)
	{
		var tab_heads = document.getElementById(head);
		if (tab_heads)
		{
			var lis = tab_heads.getElementsByTagName("li");
			var as = tab_heads.getElementsByTagName("a");
			for (var i = 0; i < as.length; i++)
			{
				lis[i].className = "";
				BtHide(divs + "_" + i);
				if (i == index)
				{
					lis[i].className = "current";
				}
			}
			BtShow(divs + "_" + index);
		}
	}
	function TabOn(head, divs)
	{
		var tab_heads = document.getElementById(head);
		if (tab_heads)
		{
			BtTabRemove(0, head, divs);
			var alis = tab_heads.getElementsByTagName("a");
			for (var i = 0; i < alis.length; i++)
			{
				alis[i].num = i;
				var innerText = alis[i].innerText;
				if (!innerText)
					innerText = alis[i].innerHTML;
				if (innerText != "最新" && alis[i].className == "nolink")
					alis[i].style.display = "none";
	            alis[i].onclick = function()
				{
					BtTabRemove(this.num, head, divs);
					this.blur();
					return false;
				}
				alis[i].onfocus = function()
				{
					BtTabRemove(this.num, head, divs);
				}
			}
		}
	}