function displaysub(x)
		{
			if (x==1)
				{document.getElementById('submenu2').style.display = "none";
				document.getElementById('submenu3').style.display = "none";
				document.getElementById('submenu4').style.display = "none";
				document.getElementById('submenu1').style.display = "block"; }
			else if (x==2)
				{document.getElementById('submenu1').style.display = "none";
				document.getElementById('submenu3').style.display = "none";
				document.getElementById('submenu4').style.display = "none";
				document.getElementById('submenu2').style.display = "block"; }	
			else if (x==3)
				{document.getElementById('submenu1').style.display = "none";
				document.getElementById('submenu2').style.display = "none";
				document.getElementById('submenu4').style.display = "none";
				document.getElementById('submenu3').style.display = "block"; }		
			else
				{document.getElementById('submenu1').style.display = "none";
				document.getElementById('submenu2').style.display = "none";
				document.getElementById('submenu3').style.display = "none";
				document.getElementById('submenu4').style.display = "block";}
				hidesub2();
		}
function displaysub2()
	{document.getElementById('sub2menu2').style.display = "block";}
function hidesub2()
	{document.getElementById('sub2menu2').style.display = "none";}

function hidesub()
		{
			hidesub2();
			document.getElementById('submenu1').style.display = "none";
			document.getElementById('submenu2').style.display = "none";
			document.getElementById('submenu3').style.display = "none";
			document.getElementById('submenu4').style.display = "none";
		}
		
function displaysubEN()
		{
				document.getElementById('submenu1').style.display = "block"; 
		}

function hidesubEN()
		{
			hidesub();
		}