function menu_hide(id){
			var currentmenu = document.getElementById("menu" + id);
			if (currentmenu)
			currentmenu.style.display = 'none';
		}

		function menu_show(id){
			var currentmenu = document.getElementById("menu" + id);
			if (currentmenu)
			currentmenu.style.display = 'block';
		}

  		var nohideid = '';

		function ShowSubmenu(id)
		{
            nohideid = id;
			if (document.getElementById(id)){
			document.getElementById(id).style.display = 'block';
			document.getElementById(id).style.visibility = 'visible';
			}
		}

  		function TryHideSubmenu(id)
  		{
          nohideid = '';
          setTimeout('HideSubmenu("'+id+'")', 1);
  		}

  		function HideSubmenu(id)
  		{
  			if(nohideid != id)
  			{	if(document.getElementById(id)){
  				document.getElementById(id).style.display = 'none';
				document.getElementById(id).style.visibility = 'hidden';
				}
  			}
  		}