diff --git a/adm/admin.head.php b/adm/admin.head.php
index dddb2bac7..9c35b557c 100644
--- a/adm/admin.head.php
+++ b/adm/admin.head.php
@@ -3,6 +3,20 @@ if (!defined('_GNUBOARD_')) exit;
 
 $begin_time = get_microtime();
 
+$files = glob(G5_ADMIN_PATH.'/css/admin_extend_*');
+if (is_array($files)) {
+    foreach ((array) $files as $k=>$css_file) {
+        
+        $fileinfo = pathinfo($css_file);
+        $ext = $fileinfo['extension'];
+        
+        if( $ext !== 'css' ) continue;
+        
+        $css_file = str_replace(G5_ADMIN_PATH, G5_ADMIN_URL, $css_file);
+        add_stylesheet('<link rel="stylesheet" href="'.$css_file.'">', $k);
+    }
+}
+
 include_once(G5_PATH.'/head.sub.php');
 
 function print_menu1($key, $no='')
@@ -124,7 +138,7 @@ function imageview(id, w, h)
                 $button_title = $menu['menu'.$key][0][1];
             ?>
             <li class="gnb_li<?php echo $current_class;?>">
-                <button type="button" class="btn_op menu-<?php echo $jj; ?>" title="<?php echo $button_title; ?>"><?php echo $button_title;?></button>
+                <button type="button" class="btn_op menu-<?php echo $key; ?> menu-order-<?php echo $jj; ?>" title="<?php echo $button_title; ?>"><?php echo $button_title;?></button>
                 <div class="gnb_oparea_wr">
                     <div class="gnb_oparea">
                         <h3><?php echo $menu['menu'.$key][0][1];?></h3>
diff --git a/adm/css/admin.css b/adm/css/admin.css
index a2071f79f..c030ac5df 100644
--- a/adm/css/admin.css
+++ b/adm/css/admin.css
@@ -58,18 +58,18 @@ h2{font-size: 1.083em;font-weight: bold;margin:10px 0}
 #gnb .gnb_ul{position:relative;height:100%;background:#ebebeb;width:50px}
 #gnb .gnb_li{border-bottom:1px solid #ddd }
 #gnb .gnb_li button{background-color: #ebebeb;border:0;width:50px;height:50px;text-indent:-999px;overflow:hidden;}
-#gnb .gnb_li .menu-1{background:url(../img/menu-1-1.png) 50% 50% no-repeat #ebebeb }
-#gnb .on .menu-1{background:url(../img/menu-1.png) 50% 50% no-repeat #fff}
-#gnb .gnb_li .menu-2{background:url(../img/menu-2-1.png) 50% 50% no-repeat #ebebeb }
-#gnb .on .menu-2{background:url(../img/menu-2.png) 50% 50% no-repeat #fff}
-#gnb .gnb_li .menu-3{background:url(../img/menu-3-1.png) 50% 50% no-repeat #ebebeb }
-#gnb .on .menu-3{background:url(../img/menu-3.png) 50% 50% no-repeat #fff}
-#gnb .gnb_li .menu-4{background:url(../img/menu-7-1.png) 50% 50% no-repeat #ebebeb }
-#gnb .on .menu-4{background:url(../img/menu-7.png) 50% 50% no-repeat #fff}
-#gnb .gnb_li .menu-5{background:url(../img/menu-6-1.png) 50% 50% no-repeat #ebebeb }
-#gnb .on .menu-5{background:url(../img/menu-6.png) 50% 50% no-repeat #fff}
-#gnb .gnb_li .menu-6{background:url(../img/menu-4-1.png) 50% 50% no-repeat #ebebeb }
-#gnb .on .menu-6{background:url(../img/menu-4.png) 50% 50% no-repeat #fff}
+#gnb .gnb_li .menu-100{background:url(../img/menu-1-1.png) 50% 50% no-repeat #ebebeb }
+#gnb .on .menu-100{background:url(../img/menu-1.png) 50% 50% no-repeat #fff}
+#gnb .gnb_li .menu-200{background:url(../img/menu-2-1.png) 50% 50% no-repeat #ebebeb }
+#gnb .on .menu-200{background:url(../img/menu-2.png) 50% 50% no-repeat #fff}
+#gnb .gnb_li .menu-300{background:url(../img/menu-3-1.png) 50% 50% no-repeat #ebebeb }
+#gnb .on .menu-300{background:url(../img/menu-3.png) 50% 50% no-repeat #fff}
+#gnb .gnb_li .menu-400{background:url(../img/menu-7-1.png) 50% 50% no-repeat #ebebeb }
+#gnb .on .menu-400{background:url(../img/menu-7.png) 50% 50% no-repeat #fff}
+#gnb .gnb_li .menu-500{background:url(../img/menu-6-1.png) 50% 50% no-repeat #ebebeb }
+#gnb .on .menu-500{background:url(../img/menu-6.png) 50% 50% no-repeat #fff}
+#gnb .gnb_li .menu-900{background:url(../img/menu-4-1.png) 50% 50% no-repeat #ebebeb }
+#gnb .on .menu-900{background:url(../img/menu-4.png) 50% 50% no-repeat #fff}
 #gnb .gnb_li button:hover{background-color:#f3f3f3}
 #gnb .gnb_oparea{display:none;position:absolute;top:0;left:50px;background:#fff;height:100%;width:170px;padding:20px;border-right:1px solid #dbdbdb;
 -webkit-box-shadow: 2px 0 2px  rgba(150,150,150,100.1);