관리자: 버튼스타일 input -> button

adm/boardgroup_list.php

@@ -161,8 +161,8 @@ if ($i == 0)
 </table>
 
 <div class="btn_list">
-    <input type="button" value="선택수정" onclick="btn_check(this.form, 'update')">
-    <!-- <input type="button" value="선택삭제" onclick="btn_check(this.form, 'delete')"> -->
+    <button onclick="btn_check(this.form, 'update')">선택수정</button>
+    <!-- <button onclick="btn_check(this.form, 'delete')">선택삭제</button> -->
     <a href="./boardgroup_form.php">게시판그룹 추가</a>
 </div>