function DateUtil() {
}

DateUtil.getYYYYMMDD = function(date) {
	// return date.toISOString().slice(0,10);
	var yymmdd = date.getFullYear() + "-"
		+ ("0" + (date.getMonth() + 1)).slice(-2) + "-"
		+ ("0" + date.getDate()).slice(-2);
	return yymmdd;
}

DateUtil.getHHMMSS = function(date) {
	return StringUtil.getNumberStartWithZero(date.getHours(), 2) + ":"
		+ StringUtil.getNumberStartWithZero(date.getMinutes(), 2) + ":"
		+ StringUtil.getNumberStartWithZero(date.getSeconds(), 2);
}