;/*****************************************************************
 * カスタム関数 ENO
 *******************************************************************/
function checkDate(field, rules, i, options){
	var holiday = ["2025-08-04","2025-08-12","2025-08-13","2025-08-18","2025-08-25","2025-08-26","2025-10-06","2025-10-07","2025-10-14","2025-10-20","2025-10-21","2025-10-27","2025-10-06","2025-10-07","2025-10-14","2025-10-20","2025-10-21","2025-10-27"];
	var fieldDate = field.val();
	var xmasStart = "2025-12-23";
	var xmasEnd = "2025-12-25";
	if (holiday.includes(fieldDate)) {
		 return "定休日のため、ケーキの予約はできません。";
	}
	if ((fieldDate >= xmasStart) && (fieldDate <= xmasEnd)) {
		 return "クリスマス期間中のため、通常のケーキは予約できません。";
	}
}