function extend(subMenu, level)
	{
		if (! document.getElementById("mm" + subMenu)) return;
		main = document.getElementById("mm" + subMenu);
		if (! level==2)
		{
			for (i=0; i<20; i++)
			{
				if (document.getElementById("sm" + i))
				{
					if (i != subMenu)
					{
						document.getElementById("mm" + i).className = 'submenu';
						document.getElementById("sm" + i).className = 'smcollapsed';
					}
				}
				else break;
			}
		}
		
		/*
		else
		{
		  for (i=0; i<20; i++)
			{
				if (document.getElementById("sm" + i))
				{
					if (i != subMenu)
					{
						document.getElementById("mm" + i).className = 'submenu2';
						document.getElementById("sm" + i).className = 'smcollapsed';
					}
				}
				else break;
			}
		}
		*/
		
		if (main.className != "submenu" && main.className != "submenuexpanded")
		{
		  if (main.className == "submenu2")
		   {
			 main.className = 'submenuexpanded2';
			 document.getElementById("sm" + subMenu).className = 'smexpanded';
		   }
		  else
		   {
			 main.className = "submenu2";
			 document.getElementById("sm" + subMenu).className = 'smcollapsed';
		   }
		}
	    else
	     {
	       if (main.className == "submenu")
		    {
			  main.className = 'submenuexpanded';
			  document.getElementById("sm" + subMenu).className = 'smexpanded';
		    }
		   else 
		    {
			  main.className = "submenu";
			  document.getElementById("sm" + subMenu).className = 'smcollapsed';
		    }
	     }
				
	}