;/*****************************************************************
 * カスタム関数 ENO
 *******************************************************************/
function checkDate(field, rules, i, options){
	var holiday = ["2026-10-05","2026-10-06","2026-10-13","2026-10-14","2026-10-19","2026-10-20","2026-10-26","2026-10-27","2026-11-02","2026-11-04","2026-11-09","2026-11-10","2026-11-16","2026-11-17","2026-11-24","2026-11-25","2026-11-30","2026-12-01","2026-12-07","2026-12-08","2026-12-14","2026-12-15","2026-12-21","2026-12-22","2026-12-28","2026-12-29"];
	var fieldDate = field.val();
	var xmasStart = "2026-12-23";
	var xmasEnd = "2026-12-25";
	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。";
	}
}