글 작성시, 제목에 게시판 이름이 자동으로 입력되게 하려고 합니다

<tr>            <th scope="row"><label for="wr_subject">제목<strong class="sound_only">필수</strong></label></th>            <td>                <div id="autosave_wrapper">                    <input type="text" name="wr_subject" value="<?php echo $subject ?>" id="wr_subject" required class="frm_input required" size="50" maxlength="255">                    <?php if ($is_member) { // 임시 저장된 글 기능 ?>                    <script src="<?php echo G5_JS_URL; ?>/autosave.js"></script>                    <button type="button" id="btn_autosave" class="btn_frmline">임시 저장된 글 (<span id="autosave_count"><?php echo $autosave_count; ?></span>)</button>                    <div id="autosave_pop">                        <strong>임시 저장된 글 목록</strong>                        <div><button type="button" class="autosave_close"><img src="<?php echo $board_skin_url; ?>/img/btn_close.gif" alt="닫기"></button></div>                        <ul></ul>                        <div><button type="button" class="autosave_close"><img src="<?php echo $board_skin_url; ?>/img/btn_close.gif" alt="닫기"></button></div>                    </div>                    <?php } ?>                </div>            </td>        </tr>