function setDefaultSubmenu( menuid , active_menuid )
{
	clearTimeout(window);

	showSubmenu( menuid , active_menuid );
	window.setTimeout("showSubmenu('"+ active_menuid +"','"+ active_menuid +"')" , 5000 );
}

function showSubmenu( menuid , active_menuid )
{
	// doorloop de submenu's
	for ( i = 0 ; i < 6 ; i++)
	{
		if ( i != menuid )
		{
			// verberg alle submenu's behalve de geselecteerde
			document.getElementById('submenu' +i ).style.display = 'none'; 
			if ( i == active_menuid  )
				document.getElementById('mainmenu' + i ).className = 'active';
			else if ( i == menuid )
				document.getElementById('mainmenu' + i ).className = 'active2';
			else
				document.getElementById('mainmenu' + i ).className = 'notactive';
		}
	}
	
	// toon het juiste submenu
	if ( menuid < 6 )
	{
		var element = document.getElementById('submenu' + menuid );
		if( element.getElementsByTagName('li').length > 1 )
		{
			document.getElementById('submenu'+menuid).style.display = 'block';
		}
		document.getElementById('mainmenu' + menuid ).className = 'active2';
	}
}

function hideAllSubs()
{
	for( i =0; i < 6; i++ )
	{
		document.getElementById('submenu' + i ).style.display = 'none';
	}
}