function toonMenu(idsInput) {
	ids = idsInput.split('|');
	hide = document.getElementById('navigation').getElementsByTagName('li');
	for	(i=0; i < ids.length; i++) {
		elm = document.getElementById('item_'+ids[i]);
		if (elm.style.display == 'block') {
			elm.style.display = 'none';
		} else {
			elm.style.display = 'block';
		}
	}
}