var buttons = 16;

function activated(i)	{
	inactivated();
	if (document.getElementsByTagName)	{	<!-- DOM -->
		active = i*3-2;
		document.getElementsByTagName('DIV')[active].style.visibility="visible";
	}
	else if (document.all)	{	<!-- Explorer -->
		active = i*3-2;
		document.all.tags('DIV')[active].style.visibility="visible";
	}
	else if (document.layers)	{	<!-- Netscape -->
		active = i*3-1;
		document.layers[active].visibility="show";
	}
}

function inactivated()	{
	if (document.getElementsByTagName)	{	<!-- DOM -->
		for (inactive = 1; inactive <= buttons*3; inactive+=3)	{
			document.getElementsByTagName('DIV')[inactive].style.visibility="hidden";
		}
	}
	else if (document.all)	{	<!-- Explorer -->
		for (inactive = 1; inactive <= buttons*3; inactive+=3)	{
			document.all.tags('DIV')[inactive].style.visibility="hidden";
		}
	}
	else if (document.layers)	{	<!-- Netscape -->
		for (inactive = 2; inactive <= buttons*3; inactive+=3)	{
			document.layers[inactive].visibility="hide";
		}
	}
}

function visited(i)	{
	if (window.geht_auf)	{ clearInterval(geht_auf); }
	if (document.getElementsByTagName)	{	<!-- DOM -->
		visit = i*3-1;
		for (unvisit = 2; unvisit <= buttons*3; unvisit+=3)	{
			document.getElementsByTagName('DIV')[unvisit].style.visibility="hidden";
		}
		document.getElementsByTagName('DIV')[visit].style.visibility="visible";
	}
	else if (document.all)	{	<!-- Explorer -->
		visit = i*3-1;
		for (unvisit = 2; unvisit <= buttons*3; unvisit+=3)	{
			document.all.tags('DIV')[unvisit].style.visibility="hidden";
		}
		document.all.tags('DIV')[visit].style.visibility="visible";
	}
	else if (document.layers)	{	<!-- Netscape -->
		visit = i*3-0;
		for (unvisit = 3; unvisit <= buttons*3; unvisit+=3)	{
			document.layers[unvisit].visibility="hide";
		}
		document.layers[visit].visibility="show";
	}
	parent.subnav.menu(i-1);
}