agency.js
    //datepicker 선언
    $('#winter_from').datepicker();
    $('#winter_to').datepicker();
    $('#summer_from').datepicker();
    $('#summer_to').datepicker();
    $.datepicker.regional['ko'] = {
        closeText: '닫기',
        prevText: '이전달',
        nextText: '다음달',
        currentText: '오늘',
        monthNames: ['1월(JAN)','2월(FEB)','3월(MAR)','4월(APR)','5월(MAY)','6월(JUN)',
            '7월(JUL)','8월(AUG)','9월(SEP)','10월(OCT)','11월(NOV)','12월(DEC)'],
        monthNamesShort: ['1월','2월','3월','4월','5월','6월',
            '7월','8월','9월','10월','11월','12월'],
        dayNames: ['일','월','화','수','목','금','토'],
        dayNamesShort: ['일','월','화','수','목','금','토'],
        dayNamesMin: ['일','월','화','수','목','금','토'],
        // weekHeader: 'Wk',
        dateFormat: 'yy-mm-dd',
        firstDay: 0,
        isRTL: false,
        showMonthAfterYear: true,
        showOtherMonths: true,
        selectOtherMonths: true,
        yearSuffix: '',
        showOn: 'both',
        changeMonth: true,
        changeYear: true,
        yearRange: 'c-99:c+99',
    };





agency_product_set.html
               <div class="agency__orderDate_summer">
                                                <div class="orderDate_title">마감일:</div>
                                                <div class="orderDate_inputFrame">
                                                    <div class="input_frame">
                                                        <input type="text" id="summer_to" name="sum_to" class="datePicker" readonly="readonly" >
                                                    </div>
                                                </div>
                                            </div>
                                        </div>