var tmd;
var bNN4 = document.layers;
var bIE4 = document.all && document.all.item;
var bW3CDOM = document.getElementById;
var bDOMBrowser = bNN4 || bIE4 || bW3CDOM;

function ClrTimer()
{
   timerID=tmd;
   clearTimeout(timerID);
}

function STimer()
{
   timerID=setTimeout('hideall()',1000);
   tmd = timerID;
}

function hideall()
{
 for (id=1; id<=6; id++)
  {
//   alert(id);

   if(bDOMBrowser ==bIE4)
   	{ document.getElementById('menu-l-'+id).style.visibility='hidden'; }
   if(bDOMBrowser ==bW3CDOM)
  	{ document.getElementById('menu-l-'+id).style.visibility='hidden'; }
   if(bDOMBrowser ==bNN4)
  	{ document.layers['menu-l-'+id].visibility="hidden"; }
  }
}

function show(id)
{
 hideall();
// alert(id);

 if(bDOMBrowser ==bIE4)
 	{ document.getElementById('menu-l-'+id).style.visibility='visible'; }
 if(bDOMBrowser ==bW3CDOM)
	{ document.getElementById('menu-l-'+id).style.visibility='visible'; }
 if(bDOMBrowser ==bNN4)
	{ document.layers['menu-l-'+id].visibility="visible"; }
}