function showMenu(ID, subitems)
{
	var menu = eval("menu_" + ID);
	
	activeMenu = ID;
	menu.style.display = "";
}

function hideMenu(ID, subitems)
{
	var menu = eval("menu_" + ID);
	
	if (subitems > 0) 
	{
		menu.style.display = "none";
	}
}
function showLayer(layerName, shadowLayerName)
							{
								if (document.getElementById) // Netscape 6 and IE 5+
								{
									var targetElement = document.getElementById(layerName);
									targetElement.style.display = 'block';
								}
							}
					
							function showthisLayer(layerName)
							{
								if (document.getElementById) // Netscape 6 and IE 5+
								{
									document.getElementById("nadata").style.display = 'none';
									document.getElementById("entredatas").style.display = 'none';
									document.getElementById(layerName).style.display = 'block';
								}
							}
							function hideLayer(layerName)
							{
								if (document.getElementById) 
								{
									var targetElement = document.getElementById(layerName);
									targetElement.style.display = 'none';
								}
							}