function showsubmenu(i)
			{
				if (i=="1")
				   {
				      document.getElementById("all").style.display="inline";
					  document.getElementById("so1").className="current";
				   }
				else
				   {document.getElementById("all").style.display = "none";
				   document.getElementById("so1").className="";}
				if (i=="2")
				{
				   document.getElementById("hs").style.display = "inline";
				   document.getElementById("so2").className="current";
				   }
				else
				   {document.getElementById("hs").style.display="none";
				   document.getElementById("so2").className="";}
				if (i=="3")
				{
				   document.getElementById("pin").style.display="inline";
				   document.getElementById("so3").className="current";
				   }
				else
				   {document.getElementById("pin").style.display="none";	
				   document.getElementById("so3").className="";}
				if (i=="4")
				{
				   document.getElementById("jy").style.display="inline";
				   document.getElementById("so4").className="current";
				   }
				else
				   {document.getElementById("jy").style.display="none";	
				   document.getElementById("so4").className="";}
				if (i=="5")
				{
				   document.getElementById("edu").style.display="inline";
				   document.getElementById("so5").className="current";
				   }
				else
				   {document.getElementById("edu").style.display="none";
				   document.getElementById("so5").className="";}
				if (i=="6")
				{
				   document.getElementById("zixun").style.display="inline";
				   document.getElementById("so6").className="current";
				   }
				else
				   {document.getElementById("zixun").style.display="none";	
				   document.getElementById("so6").className="";}
				if (i=="7")
				{
				   document.getElementById("frd").style.display="inline";
				   document.getElementById("so7").className="current";
				   }
				else
				   {document.getElementById("frd").style.display="none";
				   document.getElementById("so7").className="";}
			}