function checkType() {
	if (document.eventform.eventtype.value == "00") {
		document.eventform.eventdesc.disabled = false;
		document.eventform.eventdesc.focus();
	} else {
		document.eventform.eventdesc.disabled = true;
	}
}

function checkDesc() {
	if (document.eventform.eventtype.value == "00" && document.eventform.eventdesc.value == '') {
		return true;
	} else {
		return false;
	}
}

function checkDate(sDate, eDate) {
	// Format date is YYYY-MM-DD, to compare, must be YYYYMMDD
	var start = sDate.substr(0,4) + sDate.substr(5, 2) + sDate.substr(8, 2);
	var end = eDate.substr(0,4) + eDate.substr(5, 2) + eDate.substr(8, 2);
	return (parseInt(start) > parseInt(end)) ? true : false;
}

function submitEvent() {
	var startdate = document.eventform.TANGGAL_MULAI.value;
	var enddate = document.eventform.TANGGAL_SELESAI.value;
	if (checkDesc()) {
		alert("Anda harus mengisi Keterangan untuk event Lain-lain");
		return false;
	} else if (startdate == '') {
		alert("Anda belum mengisi Tanggal Mulai");
		return false;
	} else if (enddate == '') {
		alert("Anda belum mengisi Tanggal Akhir");
		return false;
	} else if (checkDate(startdate, enddate)) {
		alert("Tanggal Selesai tidak boleh sebelum Tanggal Mulai");
		return false;
	} else {
		return true;
	}
}

function updateCheckboxes(cb) {
	var elist = $('elist');
	var cbs = elist.getElementsByTagName('input');
	var ncbs = cbs.length;
	for (var i = 0; i < ncbs; ++i) {
		cbs[i].checked = cb.checked;
	}
}