function NoDateChk(){
	
	if( document.ypro_form_kensaku != undefined && document.ypro_form_kensaku.obj_no_date != undefined ){
		if( document.ypro_form_kensaku.obj_no_date.checked == false ){
			document.ypro_form_kensaku.elements["obj_year"].disabled = false;
			document.ypro_form_kensaku.elements["obj_month"].disabled = false;
			document.ypro_form_kensaku.elements["obj_day"].disabled = false;
		}else{
			document.ypro_form_kensaku.elements["obj_year"].disabled = true;
			document.ypro_form_kensaku.elements["obj_month"].disabled = true;
			document.ypro_form_kensaku.elements["obj_day"].disabled = true;
		}
	}
}