주문하기 페이지에서 정보 입력시 받으시는 분 정보할때 주문자와 동일이라는 라디오 버튼이 있는데

회원이 구매하기 페이지 이동하면 주문자와 동일이 체크되어져있고 밑에 있는 내용이 채워지게 하고싶은데... 현재는 버튼을 눌러야 되자나요 근데 그페이지 이동하자마자 바로 되게 하는방법이...;

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<!-- 받으시는 분 입력 시작 { -->
    <!-- } 받으시는 분 입력 끝 -->
        <h2>받으시는 분</h2>

        <div class="tbl_frm01 tbl_wrap">
            <table>
            <tbody>
            <?php
            if($is_member) {
                // 배송지 이력
                $addr_list = '';

                // 주문자와 동일
                $addr_list .= '<input type="radio" name="ad_sel_addr" value="same"   id="ad_sel_addr_same" checked="checked">'.PHP_EOL;
                $addr_list .= '<label for="ad_sel_addr_same">주문자와 동일</label>'.PHP_EOL;

               
                // 최근배송지
               

                $addr_list .= '<input type="radio" name="ad_sel_addr" value="new" id="od_sel_addr_new">'.PHP_EOL;
                $addr_list .= '<label for="od_sel_addr_new">신규배송지</label>'.PHP_EOL;

            } else {
                // 주문자와 동일
                $addr_list .= '<input type="checkbox" name="ad_sel_addr" value="same" id="ad_sel_addr_same">'.PHP_EOL;
                $addr_list .= '<label for="ad_sel_addr_same">주문자와 동일</label>'.PHP_EOL;
            }
            ?>
            <tr>
                <th scope="row">배송지선택</th>
                <td>
                    <?php echo $addr_list; ?>
                </td>
            </tr>
           
            <tr>
                <th scope="row"><label for="od_b_name">이름<strong class="sound_only"> 필수</strong></label></th>
                <td><input type="text" name="od_b_name" id="od_b_name" required class="frm_input required" maxlength="20"></td>
            </tr>
            <tr>
                <th scope="row"><label for="od_b_tel">전화번호<strong class="sound_only"> 필수</strong></label></th>
                <td><input type="text" name="od_b_tel" id="od_b_tel" required class="frm_input required" maxlength="20"></td>
            </tr>
            <tr>
                <th scope="row"><label for="od_b_hp">핸드폰</label></th>
                <td><input type="text" name="od_b_hp" id="od_b_hp" value="<?php echo $row['mb_hp'];?>" class="frm_input" maxlength="20"></td>
            </tr>
            <tr>
                <th scope="row">주소</th>
                <td id="sod_frm_addr">
                    <label for="od_b_zip" class="sound_only">우편번호<strong class="sound_only"> 필수</strong></label>
                    <input type="text" name="od_b_zip" id="od_b_zip" required class="frm_input required" size="5" maxlength="6">
                    <button type="button" class="btn_frmline" onclick="win_zip('forderform', 'od_b_zip', 'od_b_addr1', 'od_b_addr2', 'od_b_addr3', 'od_b_addr_jibeon');">주소 검색</button><br>
                    <input type="text" name="od_b_addr1" id="od_b_addr1" required class="frm_input frm_address required" size="60">
                    <label for="od_b_addr1">기본주소<strong class="sound_only"> 필수</strong></label><br>
                    <input type="text" name="od_b_addr2" id="od_b_addr2" class="frm_input frm_address" size="60">
                    <label for="od_b_addr2">상세주소</label>
                    <br>
                    <input type="text" name="od_b_addr3" id="od_b_addr3" readonly="readonly" class="frm_input frm_address" size="60">
                    <label for="od_b_addr3">참고항목</label><br>
                    <input type="hidden" name="od_b_addr_jibeon" value="">
                </td>
            </tr>
            <tr>
                <th scope="row"><label for="od_memo">전하실말씀</label></th>
                <td><textarea name="od_memo" id="od_memo"></textarea></td>
            </tr>
            </tbody>
            </table>
        </div>
    </section>
    <!-- } 받으시는 분 입력 끝 -->​

// 배송지선택
     $("input[name=ad_sel_addr]").on("click", function() {

        var addr = $(this).val().split(String.fromCharCode(30));

        if (addr[0] == "same") {
            if($(this).is(":checked"))
                gumae2baesong(true);
            else
                gumae2baesong(false);
        } else {
            if(addr[0] == "new") {
                for(i=0; i<10; i++) {
                    addr[i] = "";
                }
            }

            var f = document.forderform;
            f.od_b_name.value        = addr[0];
            f.od_b_tel.value         = addr[1];
            f.od_b_hp.value          = addr[2];
            f.od_b_zip.value         = addr[3] + addr[4];
            f.od_b_addr1.value       = addr[5];
            f.od_b_addr2.value       = addr[6];
            f.od_b_addr3.value       = addr[7];
            f.od_b_addr_jibeon.value = addr[8];
            f.ad_subject.value       = addr[9];

            var zip1 = addr[3].replace(/[^0-9]/g, "");
            var zip2 = addr[4].replace(/[^0-9]/g, "");

            if(zip1 != "" && zip2 != "") {
                var code = String(zip1) + String(zip2);

                if(zipcode != code) {
                    zipcode = code;
                    calculate_sendcost(code);
                }
            }
        }
    });​

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