function gostertakvim(month, year) {
	var url = "/calendar.htm?month=" + month + "&year=" + year;
	xmlhttp.open("GET", url, true);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4) {
			thisMonth = month;
			var calDiv = document.getElementById("calendar");
			calDiv.innerHTML = xmlhttp.responseText;
		}
	}

	xmlhttp.send(null);
}

function go(day) {
	var url = "/perfList.htm?pst=CALENDAR&d=" + day;
	window.location.href = url;
}