diff --git a/AvocadoEdition_Light/adm/_common.php b/AvocadoEdition_Light/adm/_common.php
index 76fcbd9..fa95aa7 100644
--- a/AvocadoEdition_Light/adm/_common.php
+++ b/AvocadoEdition_Light/adm/_common.php
@@ -1,4 +1,5 @@
 <?php
 define('G5_IS_ADMIN', true);
-include_once('../common.php');
-include_once(G5_ADMIN_PATH . '/admin.lib.php');
+
+include_once '../common.php';
+include_once G5_ADMIN_PATH . '/admin.lib.php';
diff --git a/AvocadoEdition_Light/adm/_m.board.menu.php b/AvocadoEdition_Light/adm/_m.board.menu.php
index a32a412..b33712e 100644
--- a/AvocadoEdition_Light/adm/_m.board.menu.php
+++ b/AvocadoEdition_Light/adm/_m.board.menu.php
@@ -1,4 +1,7 @@
 <?php
+if (!defined('_GNUBOARD_'))
+  exit;
+
 $menu["board"] = new MenuCategory("board", "board", "게시판관리", "/board_list.php", true, 2, "", 0);
 
 $menu["board"]->addChildMenu("member", "게시판관리", G5_ADMIN_URL . "/board_list.php",  true, 1, "gear-wide-connected", 0);
diff --git a/AvocadoEdition_Light/adm/_m.member.menu.php b/AvocadoEdition_Light/adm/_m.member.menu.php
index d3bb6a6..4fa7507 100644
--- a/AvocadoEdition_Light/adm/_m.member.menu.php
+++ b/AvocadoEdition_Light/adm/_m.member.menu.php
@@ -1,4 +1,7 @@
 <?php
+if (!defined('_GNUBOARD_'))
+  exit;
+
 $menu["member"] = new MenuCategory("member", "member", "회원관리", "/member_list.php", true, 1, "", 0);
 
 $menu["member"]->addChildMenu("member", "회원관리", G5_ADMIN_URL . "/member_list.php",  true, 1, "gear-wide-connected", 0);
diff --git a/AvocadoEdition_Light/adm/_m.other.menu.php b/AvocadoEdition_Light/adm/_m.other.menu.php
index cc85321..98a662e 100644
--- a/AvocadoEdition_Light/adm/_m.other.menu.php
+++ b/AvocadoEdition_Light/adm/_m.other.menu.php
@@ -1,4 +1,7 @@
 <?php
+if (!defined('_GNUBOARD_'))
+  exit;
+
 $menu["other"] = new MenuCategory("other", "other", "기타관리", "/config_form.php", true, 99, "", 0);
 
 $menu["other"]->addChildMenu("other", "홈페이지 상세관리", G5_ADMIN_URL . "/config_form.php",  true, 1, "gear-wide-connected", 0);
diff --git a/AvocadoEdition_Light/adm/_m.site.menu.php b/AvocadoEdition_Light/adm/_m.site.menu.php
index 8215ae1..4255b76 100644
--- a/AvocadoEdition_Light/adm/_m.site.menu.php
+++ b/AvocadoEdition_Light/adm/_m.site.menu.php
@@ -1,4 +1,7 @@
 <?php
+if (!defined('_GNUBOARD_'))
+  exit;
+
 $menu["config"] = new MenuCategory("config", "config", "사이트 설정", "/site_config_form.php", true, 0, "", 0);
 
 $menu["config"]->addChildMenu("config", "환경설정", G5_ADMIN_URL . "/site_config_form.php", true, 1, "gear-wide-connected", 0);
diff --git a/AvocadoEdition_Light/adm/admin.head.php b/AvocadoEdition_Light/adm/admin.head.php
index 79220eb..ae86d55 100644
--- a/AvocadoEdition_Light/adm/admin.head.php
+++ b/AvocadoEdition_Light/adm/admin.head.php
@@ -1,50 +1,10 @@
 <?php
 if (!defined('_GNUBOARD_'))
   exit;
+
 $begin_time = get_microtime();
+
 include_once G5_PATH . '/head.sub.php';
-
-function print_menu1($key, $no)
-{
-  global $menu;
-
-  $str = print_menu2($key, $no);
-
-  return $str;
-}
-
-function print_menu2($key, $no)
-{
-  global $menu, $auth_menu, $is_admin, $auth, $g5, $sub_menu;
-
-  $str = "<ul class=\"gnb_2dul\">";
-  for ($i = 1; $i < count($menu[$key]); $i++) {
-    if ($is_admin != 'super' && (!array_key_exists($menu[$key][$i][0], $auth) || !strstr($auth[$menu[$key][$i][0]], 'r')))
-      continue;
-
-    if (($menu[$key][$i][4] == 1 && $gnb_grp_style == false) || ($menu[$key][$i][4] != 1 && $gnb_grp_style == true))
-      $gnb_grp_div = 'gnb_grp_div';
-    else
-      $gnb_grp_div = '';
-
-    if ($menu[$key][$i][4] == 1)
-      $gnb_grp_style = 'gnb_grp_style';
-    else
-      $gnb_grp_style = '';
-
-    $check_gnb_grp_style = "";
-    if ($menu[$key][$i][0] && isset($sub_menu) && $menu[$key][$i][0] == $sub_menu) {
-      $check_gnb_grp_style = "check";
-    }
-
-    $str .= '<li class="gnb_2dli ' . $check_gnb_grp_style . '"><a href="' . $menu[$key][$i][2] . '" class="gnb_2da ' . $gnb_grp_style . ' ' . $gnb_grp_div . '" data-text="' . $menu[$key][$i][1] . '">' . $menu[$key][$i][1] . '</a></li>';
-
-    $auth_menu[$menu[$key][$i][0]] = $menu[$key][$i][1];
-  }
-  $str .= "</ul>";
-
-  return $str;
-}
 ?>
 
 <script>
@@ -96,7 +56,7 @@ function print_menu2($key, $no)
       <?php
       $gnb_str = "<ul>";
       foreach ($menu as $key => $menuitem) {
-        $current_class = "";
+        $current_class = $menuitem->selected ? " gnb_1dli_air" : "";
         $gnb_str .= "<li class=\"gnb_1dli{$current_class}\" data-text=\"{$menuitem->name}\">" . PHP_EOL;
         $gnb_str .= "<a href=\"" . G5_ADMIN_URL . $menuitem->url . "\" class=\"gnb_1da\">";
         $gnb_str .= $menuitem->name;
diff --git a/AvocadoEdition_Light/classes/menucategory/menucategory.class.php b/AvocadoEdition_Light/classes/menucategory/menucategory.class.php
index 29ed0ab..ad6e3d8 100644
--- a/AvocadoEdition_Light/classes/menucategory/menucategory.class.php
+++ b/AvocadoEdition_Light/classes/menucategory/menucategory.class.php
@@ -11,10 +11,12 @@ class MenuCategory extends Menu
 
   public $key;
   public $childmenu;
+  public $selected;
 
   public function __construct($key, $mid, $name, $url, $display = true, $order = 0, $icon = '', $gnb_grp_div = 0)
   {
     $this->key = $key;
+    $this->selected = false;
     $this->childmenu = [];
     parent::__construct($mid, $name, $url, $display, $order, $icon, $gnb_grp_div);
   }
@@ -71,6 +73,7 @@ class MenuCategory extends Menu
       $check_gnb_grp_style = "";
       if (str_replace([G5_ADMIN_URL, "/adm"], ["", ""], $menu->url) == $sub_menu || in_array($sub_menu, $menu->suburl)) {
         $check_gnb_grp_style = "check";
+        $this->selected = true;
       }
   
       $str .= '<li class="gnb_2dli ' . $check_gnb_grp_style . '"><a href="' . $menu->url . '" class="gnb_2da ' . $gnb_grp_style . ' ' . $gnb_grp_div . '" data-text="' . $menu->name . '">' . $menu->name . '</a></li>';