diff --git a/common.php b/common.php
index ce258eb7b..303b4be32 100644
--- a/common.php
+++ b/common.php
@@ -95,6 +95,7 @@ if (file_exists($dbconfig_file)) {
     $connect_db = sql_connect(G4_MYSQL_HOST, G4_MYSQL_USER, G4_MYSQL_PASSWORD) or die('MySQL Connect Error!!!');
     $select_db  = sql_select_db(G4_MYSQL_DB, $connect_db) or die('MySQL DB Error!!!');
     @mysql_query(" set names utf8 ");
+    if (defined(G4_TIMEZONE)) @mysql_query(" set time_zone = '".G4_TIMEZONE."'"); 
 } else {
 ?>
 
diff --git a/config.php b/config.php
index cfa9fd5a2..32c6e5abf 100644
--- a/config.php
+++ b/config.php
@@ -6,9 +6,10 @@
 // 이 상수가 정의되지 않으면 각각의 개별 페이지는 별도로 실행될 수 없음
 define('_GNUBOARD_', true);
 
+define('G4_TIMEZONE', 'Asia/Seoul');
+
 if (PHP_VERSION >= '5.3.0') {
-    //if (function_exists("date_default_timezone_set")) date_default_timezone_set("Asia/Seoul");
-    date_default_timezone_set("Asia/Seoul");
+    date_default_timezone_set(G4_TIMEZONE);
 }
 
  //==============================================================================
diff --git a/mobile/skin/board/basic/view_comment.skin.php b/mobile/skin/board/basic/view_comment.skin.php
index 36e83a6b2..bb0fe5aec 100644
--- a/mobile/skin/board/basic/view_comment.skin.php
+++ b/mobile/skin/board/basic/view_comment.skin.php
@@ -116,7 +116,7 @@ var char_max = parseInt(<?php echo $comment_max ?>); // 최대
             <th scope="row">내용</th>
             <td>
                 <?php if ($comment_min || $comment_max) { ?><strong id="char_cnt"><span id="char_count"></span>글자</strong><?php } ?>
-                <textarea id="wr_content" name="wr_content" required
+                <textarea id="wr_content" name="wr_content" required title="댓글 내용"
                 <?php if ($comment_min || $comment_max) { ?>onkeyup="check_byte('wr_content', 'char_count');"<?php } ?>><?php echo $c_wr_content; ?></textarea>
                 <?php if ($comment_min || $comment_max) { ?><script> check_byte('wr_content', 'char_count'); </script><?php } ?>
             </td>
@@ -125,7 +125,7 @@ var char_max = parseInt(<?php echo $comment_max ?>); // 최대
         </table>
 
         <div class="btn_confirm">
-            <input type="submit" class="btn_submit" value="댓글등록">
+            <input type="submit" value="댓글등록" id="btn_submit" class="btn_submit" accesskey="s">
         </div>
 
         </form>
@@ -233,6 +233,8 @@ var char_max = parseInt(<?php echo $comment_max ?>); // 최대
 
         <?php if($is_guest) echo chk_captcha_js(); ?>
 
+        document.getElementById("btn_submit").disabled = "disabled";
+
         return true;
     }
 
diff --git a/mobile/skin/board/basic/write.skin.php b/mobile/skin/board/basic/write.skin.php
index a4cd5f2e4..c24f751b6 100644
--- a/mobile/skin/board/basic/write.skin.php
+++ b/mobile/skin/board/basic/write.skin.php
@@ -234,6 +234,8 @@ function fwrite_submit(f)
 
     <?php if ($is_guest) { echo chk_captcha_js(); } ?>
 
+    document.getElementById("btn_submit").disabled = "disabled";
+
     return true;
 }
 </script>
diff --git a/mobile/skin/member/basic/register_form.skin.php b/mobile/skin/member/basic/register_form.skin.php
index 6c202e66b..139d58db6 100644
--- a/mobile/skin/member/basic/register_form.skin.php
+++ b/mobile/skin/member/basic/register_form.skin.php
@@ -226,7 +226,7 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
     <p>
         작성하신 내용을 제출하시려면 <strong><?php echo $w==''?'회원가입':'정보수정'; ?></strong> 버튼을, 작성을 취소하고 목록으로 돌아가시려면 <strong>취소</strong> 링크를 누르세요.
     </p>
-    <input type="submit" value="<?php echo $w==''?'회원가입':'정보수정'; ?>" class="btn_submit" accesskey="s">
+    <input type="submit" value="<?php echo $w==''?'회원가입':'정보수정'; ?>" id="btn_submit" class="btn_submit" accesskey="s">
     <a href="<?php echo $g4['path'] ?>/" class="btn_cancel">취소</a>
 </div>
 </form>
@@ -336,12 +336,19 @@ function fregisterform_submit(f)
         }
     }
 
-    if (typeof(f.mb_recommend) != 'undefined') {
+    if (typeof(f.mb_recommend) != 'undefined' && f.mb_recommend.value) {
         if (f.mb_id.value == f.mb_recommend.value) {
             alert('본인을 추천할 수 없습니다.');
             f.mb_recommend.focus();
             return false;
         }
+
+        var msg = reg_mb_recommend_check();
+        if (msg) {
+            alert(msg);
+            f.mb_recommend.select();
+            return false;
+        }
     }
 
     <?php if ($config['cf_kcpcert_use']) { ?>
@@ -371,6 +378,8 @@ function fregisterform_submit(f)
 
     <?php echo chk_captcha_js(); ?>
 
+    document.getElementById("btn_submit").disabled = "disabled";
+
     return true;
 }
 </script>
diff --git a/shop/list.skin.10.php b/shop/list.skin.10.php
index f9b8dd0e2..f52436e1f 100644
--- a/shop/list.skin.10.php
+++ b/shop/list.skin.10.php
@@ -21,7 +21,7 @@ for ($i=1; $row=sql_fetch_array($result); $i++)
 ?>
     <li class="sct_li <?php echo $sct_last; ?>">
         <a href="<?php echo $href; ?>" class="sct_a">
-            <span class="sct_img"><?php echo get_it_image($row['it_id'].'_s', $img_width, $img_height, '', $type); ?></span>
+            <span class="sct_img"><?php echo get_it_image($row['it_id'].'_m', $img_width, $img_height, '', $type); ?></span>
             <b><?php echo stripslashes($row['it_name']); ?></b>
             <?php if ($row['it_cust_amount'] && !$row['it_gallery']) { ?>
             <s><?php echo display_amount($row['it_cust_amount']); ?></s>
diff --git a/skin/board/basic/view_comment.skin.php b/skin/board/basic/view_comment.skin.php
index d50db1d12..6021e4b4e 100644
--- a/skin/board/basic/view_comment.skin.php
+++ b/skin/board/basic/view_comment.skin.php
@@ -117,7 +117,7 @@ var char_max = parseInt(<?php echo $comment_max ?>); // 최대
             <th scope="row">내용</th>
             <td>
                 <?php if ($comment_min || $comment_max) { ?><strong id="char_cnt"><span id="char_count"></span>글자</strong><?php } ?>
-                <textarea id="wr_content" name="wr_content" maxlength="10000" required class="required"
+                <textarea id="wr_content" name="wr_content" maxlength="10000" required class="required" title="댓글 내용"
                 <?php if ($comment_min || $comment_max) { ?>onkeyup="check_byte('wr_content', 'char_count');"<?php } ?>><?php echo $c_wr_content;  ?></textarea>
                 <?php if ($comment_min || $comment_max) { ?><script> check_byte('wr_content', 'char_count'); </script><?php } ?>
                 <script>
@@ -136,7 +136,7 @@ var char_max = parseInt(<?php echo $comment_max ?>); // 최대
         </table>
 
         <div class="btn_confirm">
-            <input type="submit" class="btn_submit" value="댓글등록">
+            <input type="submit" value="댓글등록" id="btn_submit" class="btn_submit" accesskey="s">
         </div>
 
         </form>
@@ -244,6 +244,8 @@ var char_max = parseInt(<?php echo $comment_max ?>); // 최대
 
         <?php if($is_guest) echo chk_captcha_js();  ?>
 
+        document.getElementById("btn_submit").disabled = "disabled";
+
         return true;
     }
 
diff --git a/skin/board/basic/write.skin.php b/skin/board/basic/write.skin.php
index 52cca5147..585b46a14 100644
--- a/skin/board/basic/write.skin.php
+++ b/skin/board/basic/write.skin.php
@@ -147,7 +147,7 @@ echo $option_hidden;
     <p>
        작성하신 내용을 제출하시려면 <strong>글쓰기</strong> 버튼을, 작성을 취소하고 목록으로 돌아가시려면 <strong>취소</strong> 링크를 누르세요.
     </p>
-    <input type="submit" value="글쓰기" id="btn_submit" accesskey="s" class="btn_submit">
+    <input type="submit" value="글쓰기" id="btn_submit" class="btn_submit" accesskey="s">
     <a href="./board.php?bo_table=<?php echo $bo_table ?>" class="btn_cancel">취소</a>
 </div>
 </form>
@@ -218,6 +218,8 @@ function fwrite_submit(f)
 
     <?php echo $captcha_js; // 캡챠 사용시 자바스크립트에서 입력된 캡챠를 검사함  ?>
 
+    document.getElementById("btn_submit").disabled = "disabled";
+    
     return true;
 }
 </script>
diff --git a/skin/member/basic/register_form.skin.php b/skin/member/basic/register_form.skin.php
index 3a724df2a..696efea2f 100644
--- a/skin/member/basic/register_form.skin.php
+++ b/skin/member/basic/register_form.skin.php
@@ -228,7 +228,7 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
     <p>
         작성하신 내용를 발송하시려면 <strong><?php echo $w==''?'회원가입':'정보수정'; ?></strong> 버튼을, 작성을 취소하고 창을 닫으시려면 <strong>취소</strong> 링크를 누르세요.
     </p>
-    <input type="submit" value="<?php echo $w==''?'회원가입':'정보수정'; ?>" class="btn_submit" accesskey="s">
+    <input type="submit" value="<?php echo $w==''?'회원가입':'정보수정'; ?>" id="btn_submit" class="btn_submit" accesskey="s">
     <a href="<?php echo $g4['path'] ?>/" class="btn_cancel">취소</a>
 </div>
 </form>
@@ -379,6 +379,8 @@ function fregisterform_submit(f)
 
     <?php echo chk_captcha_js();  ?>
 
+    document.getElementById("btn_submit").disabled = "disabled";
+
     return true;
 }
 </script>