diff --git a/mobile/skin/board/basic/list.skin.php b/mobile/skin/board/basic/list.skin.php
index 1674b5a03..01c2d759a 100644
--- a/mobile/skin/board/basic/list.skin.php
+++ b/mobile/skin/board/basic/list.skin.php
@@ -152,7 +152,7 @@ if ($is_nogood) $colspan++;
         <option value="wr_name,1"<?php echo get_selected($sfl, 'wr_name,1'); ?>>글쓴이</option>
         <option value="wr_name,0"<?php echo get_selected($sfl, 'wr_name,0'); ?>>글쓴이(코)</option>
     </select>
-    <input name="stx" value="<?php echo stripslashes($stx) ?>" placeholder="검색어(필수)" required class="required frm_input" size="15" maxlength="15">
+    <input name="stx" value="<?php echo stripslashes($stx) ?>" placeholder="검색어(필수)" required id="stx" class="required frm_input" size="15" maxlength="15">
     <input type="submit" value="검색" class="btn_submit">
     </form>
 </fieldset>
diff --git a/mobile/skin/board/gallery/list.skin.php b/mobile/skin/board/gallery/list.skin.php
index 01a1ff692..71d709dbe 100644
--- a/mobile/skin/board/gallery/list.skin.php
+++ b/mobile/skin/board/gallery/list.skin.php
@@ -176,7 +176,7 @@ $(window).on("load", function() {
         <option value="wr_name,1"<?php echo get_selected($sfl, "wr_name,1"); ?>>글쓴이</option>
         <option value="wr_name,0"<?php echo get_selected($sfl, "wr_name,0"); ?>>글쓴이(코)</option>
     </select>
-    <input name="stx" value="<?php echo stripslashes($stx) ?>" placeholder="검색어(필수)" required class="required" size="15" maxlength="15">
+    <input name="stx" value="<?php echo stripslashes($stx) ?>" placeholder="검색어(필수)" required id="stx" class="required" size="15" maxlength="15">
     <input type="submit" value="검색">
     </form>
 </fieldset>
diff --git a/skin/board/basic/list.skin.php b/skin/board/basic/list.skin.php
index d155f3e22..209879558 100644
--- a/skin/board/basic/list.skin.php
+++ b/skin/board/basic/list.skin.php
@@ -180,7 +180,7 @@ if ($is_nogood) $colspan++;
         <option value="wr_name,0"<?php echo get_selected($sfl, 'wr_name,0'); ?>>글쓴이(코)</option>
     </select>
     <label for="stx" class="sound_only">검색어<strong class="sound_only"> 필수</strong></label>
-    <input type="text" name="stx" value="<?php echo stripslashes($stx) ?>" required  class="frm_input required" size="15" maxlength="15">
+    <input type="text" name="stx" value="<?php echo stripslashes($stx) ?>" required id="stx"  class="frm_input required" size="15" maxlength="15">
     <input type="submit" value="검색" class="btn_submit">
     </form>
 </fieldset>
diff --git a/skin/board/gallery/list.skin.php b/skin/board/gallery/list.skin.php
index 9d1b7d417..b88a9771f 100644
--- a/skin/board/gallery/list.skin.php
+++ b/skin/board/gallery/list.skin.php
@@ -174,7 +174,7 @@ include_once(G5_LIB_PATH.'/thumbnail.lib.php');
         <option value="wr_name,0"<?php echo get_selected($sfl, 'wr_name,0'); ?>>글쓴이(코)</option>
     </select>
     <label for="stx" class="sound_only">검색어<strong class="sound_only"> 필수</strong></label>
-    <input type="text" name="stx" value="<?php echo stripslashes($stx) ?>" required class="frm_input required" size="15" maxlength="15">
+    <input type="text" name="stx" value="<?php echo stripslashes($stx) ?>" required id="stx" class="frm_input required" size="15" maxlength="15">
     <input type="submit" value="검색" class="btn_submit">
     </form>
 </fieldset>