function opensubmenu(menuid) {
	var submenucontainer = document.getElementById('submenucontainer');
	if ( submenucontainer == null ){
	return false;
	}
	submenus = submenucontainer.getElementsByTagName('div');		
	for (submenu_nr = 0;submenu_nr < submenus.length;submenu_nr++) {
		var submenu = submenus[submenu_nr];
		var onderdeellink = document.getElementById('onderdeel'+submenu_nr);
		if (typeof(submenu) == 'object') {
			if (submenu.id == 'submenu'+menuid) {
				submenu.style.display = 'inline';
				onderdeellink.style.borderColor = 'white';
			} else {
				submenu.style.display = 'none';
				onderdeellink.style.borderColor = '#5e5b59';
			}
		}
	}
}
function closesubmenu() {
	var submenucontainer = document.getElementById('submenucontainer');
		if ( submenucontainer == null ){
	return false;
	}submenus = submenucontainer.getElementsByTagName('div');		
	for (submenu_nr = 0;submenu_nr < submenus.length;submenu_nr++) {
		var submenu = submenus[submenu_nr];
		var onderdeellink = document.getElementById('onderdeel'+submenu_nr);
		if (typeof(submenu) == 'object') {
			submenu.style.display = 'none';
			onderdeellink.style.borderColor = '#5e5b59';
		}
	}
}