function show(actual, marad_sarga) {	
		var submenu;
		var menuitem;
		submenu = "sub_" + actual;
		menuitem = "menuitem_" + actual;
		
		hideall(marad_sarga);
		document.getElementById(submenu).style.display = "block";
		document.getElementById(menuitem).style.background = "#f8f7f2";
	}
	function hideall(marad_sarga) {
		marad_sarga = "menuitem_" + marad_sarga;
		document.getElementById('sub_terapiak').style.display = "none";
		document.getElementById('sub_tanfolyamok').style.display = "none";
		
		document.getElementById('menuitem_terapiak').style.background = "white";
		document.getElementById('menuitem_tanfolyamok').style.background = "white";		
		document.getElementById(marad_sarga).style.background = "#f8f7f2";		
	}
	function ellenorzes() {
		var submenu;
		alert('**');
	}