function showsubmenu(sid)//ÏÔʾ²Ëµ¥
			{
				whichEl = eval("submenu" + sid);
				if (whichEl.style.display == "none")
				{
					eval("submenu" + sid + ".style.display=\"\";");
				}
				else
				{
					eval("submenu" + sid + ".style.display=\"none\";");
				}
			}
function disvis(sid)//Ç¿ÖÆÒþ²Ø
			{
				whichEl = eval("submenu" + sid);
					eval("submenu" + sid + ".style.display=\"none\";");
			}