function displayLastWeek(now, lang) {
		var y = parseInt(document.getElementById('ajax_year').value);
		var w = parseInt(document.getElementById('weekno').innerHTML);
		var now = y+'/'+w;
		new Ajax.Request('ajaxserver.php', {
			method: 'get',
			parameters: {
				operation: 'displaylastweek',
				attribute: now+'|'+lang
			},
			onSuccess: function(transport) {
				var rt = transport.responseText;
				var rtArr = rt.split('|');
				document.getElementById('ajax_year').value = rtArr[0];
				document.getElementById('weekno').innerHTML = rtArr[1];
				document.getElementById('meal_mon').innerHTML = rtArr[2];
				document.getElementById('meal_tue').innerHTML = rtArr[3];
				document.getElementById('meal_wed').innerHTML = rtArr[4];
				document.getElementById('meal_thu').innerHTML = rtArr[5];
				document.getElementById('meal_fri').innerHTML = rtArr[6];
			},
			onFailure: function() {
				alert('A művelet végrehajtása közben hiba történt - elnézését kérjük!');
			}
		});
	}
	
	function displayNextWeek(now, lang) {
		var y = parseInt(document.getElementById('ajax_year').value);
		var w = parseInt(document.getElementById('weekno').innerHTML);
		var now = y+'/'+w;
		new Ajax.Request('ajaxserver.php', {
			method: 'get',
			parameters: {
				operation: 'displaynextweek',
				attribute: now+'|'+lang
			},
			onSuccess: function(transport) {
				var rt = transport.responseText;
				var rtArr = rt.split('|');
				document.getElementById('ajax_year').value = rtArr[0];
				document.getElementById('weekno').innerHTML = rtArr[1];
				document.getElementById('meal_mon').innerHTML = rtArr[2];
				document.getElementById('meal_tue').innerHTML = rtArr[3];
				document.getElementById('meal_wed').innerHTML = rtArr[4];
				document.getElementById('meal_thu').innerHTML = rtArr[5];
				document.getElementById('meal_fri').innerHTML = rtArr[6];
			},
			onFailure: function() {
				alert('A művelet végrehajtása közben hiba történt - elnézését kérjük!');
			}
		});
	}
	
	function CloseAll() {
		HideSub('sm_rolunk');
		HideSub('sm_kornyezetunk');
		HideSub('sm_tanterv');
		HideSub('sm_napirend');
		HideSub('sm_galeria');
		HideSub('sm_nyarifoglalkozasok');
		HideSub('sm_hirek');
	}
	
	function GetSub(item, top) {
		CloseAll();
		$(item).style.position = 'absolute';
		$(item).style.top = top+'px';
		var pros = Math.round(parseInt(parseInt($('ccirc').offsetWidth)-1260)/2);
		$(item).style.left = parseInt(parseInt($('menubar').offsetWidth)+pros)+'px';
		$(item).style.display = 'block';
	}
	
	function HideSub(item) {
		$(item).style.display = 'none';
	}