diff --git a/adm/_common.php b/adm/_common.php
index 074ed3b51..316c629c3 100644
--- a/adm/_common.php
+++ b/adm/_common.php
@@ -6,4 +6,6 @@ include_once(G5_ADMIN_PATH.'/admin.lib.php');
 if( isset($token) ){
     $token = @htmlspecialchars(strip_tags($token), ENT_QUOTES);
 }
+
+run_event('admin_common');
 ?>
\ No newline at end of file
diff --git a/adm/cache_file_delete.php b/adm/cache_file_delete.php
index 91435809d..544fad52b 100644
--- a/adm/cache_file_delete.php
+++ b/adm/cache_file_delete.php
@@ -10,6 +10,8 @@ if(function_exists('social_log_file_delete')){
     social_log_file_delete();
 }
 
+run_event('adm_cache_file_delete_before');
+
 $g5['title'] = '캐시파일 일괄삭제';
 include_once('./admin.head.php');
 ?>
@@ -31,6 +33,9 @@ $cnt=0;
 echo '<ul class="session_del">'.PHP_EOL;
 
 $files = glob(G5_DATA_PATH.'/cache/latest-*');
+$content_files = glob(G5_DATA_PATH.'/cache/content-*');
+
+$files = array_merge($files, $content_files);
 if (is_array($files)) {
     foreach ($files as $cache_file) {
         $cnt++;
@@ -44,6 +49,8 @@ if (is_array($files)) {
     }
 }
 
+run_event('adm_cache_file_delete');
+
 echo '<li>완료됨</li></ul>'.PHP_EOL;
 echo '<div class="local_desc01 local_desc"><p><strong>최신글 캐시파일 '.$cnt.'건 삭제 완료됐습니다.</strong><br>프로그램의 실행을 끝마치셔도 좋습니다.</p></div>'.PHP_EOL;
 ?>
diff --git a/head.sub.php b/head.sub.php
index 9ff601018..32a3d0ccc 100644
--- a/head.sub.php
+++ b/head.sub.php
@@ -60,9 +60,9 @@ if($config['cf_add_meta'])
 <?php
 if (defined('G5_IS_ADMIN')) {
     if(!defined('_THEME_PREVIEW_'))
-        echo '<link rel="stylesheet" href="'.G5_ADMIN_URL.'/css/admin.css?ver='.G5_CSS_VER.'">'.PHP_EOL;
+        echo '<link rel="stylesheet" href="'.run_replace('head_css_url', G5_ADMIN_URL.'/css/admin.css?ver='.G5_CSS_VER, G5_URL).'">'.PHP_EOL;
 } else {
-    echo '<link rel="stylesheet" href="'.G5_CSS_URL.'/'.(G5_IS_MOBILE?'mobile':'default').'.css?ver='.G5_CSS_VER.'">'.PHP_EOL;
+    echo '<link rel="stylesheet" href="'.run_replace('head_css_url', G5_CSS_URL.'/'.(G5_IS_MOBILE ?'mobile':'default').'.css?ver='.G5_CSS_VER, G5_URL).'">'.PHP_EOL;
 }
 ?>
 <!--[if lte IE 8]>
@@ -83,16 +83,17 @@ var g5_cookie_domain = "<?php echo G5_COOKIE_DOMAIN ?>";
 var g5_admin_url = "<?php echo G5_ADMIN_URL; ?>";
 <?php } ?>
 </script>
-<script src="<?php echo G5_JS_URL ?>/jquery-1.12.4.min.js"></script>
-<script src="<?php echo G5_JS_URL ?>/jquery-migrate-1.4.1.min.js"></script>
-<script src="<?php echo G5_JS_URL ?>/jquery.menu.js?ver=<?php echo G5_JS_VER; ?>"></script>
-<script src="<?php echo G5_JS_URL ?>/common.js?ver=<?php echo G5_JS_VER; ?>"></script>
-<script src="<?php echo G5_JS_URL ?>/wrest.js?ver=<?php echo G5_JS_VER; ?>"></script>
-<script src="<?php echo G5_JS_URL ?>/placeholders.min.js"></script>
-<link rel="stylesheet" href="<?php echo G5_JS_URL ?>/font-awesome/css/font-awesome.min.css">
 <?php
+add_javascript('<script src="'.G5_JS_URL.'/jquery-1.12.4.min.js"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/jquery-migrate-1.4.1.min.js"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/jquery.menu.js?ver='.G5_JS_VER.'"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/common.js?ver='.G5_JS_VER.'"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/wrest.js?ver='.G5_JS_VER.'"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/placeholders.min.js"></script>', 1);
+add_stylesheet('<link rel="stylesheet" href="'.G5_JS_URL.'/font-awesome/css/font-awesome.min.css">', 1);
+
 if(G5_IS_MOBILE) {
-    echo '<script src="'.G5_JS_URL.'/modernizr.custom.70111.js"></script>'.PHP_EOL; // overflow scroll 감지
+    add_javascript('<script src="'.G5_JS_URL.'/modernizr.custom.70111.js"></script>', 2); // overflow scroll 감지
 }
 if(!defined('G5_IS_ADMIN'))
     echo $config['cf_add_script'];
diff --git a/theme/basic/head.sub.php b/theme/basic/head.sub.php
index 1a01570ec..fd7bd033e 100644
--- a/theme/basic/head.sub.php
+++ b/theme/basic/head.sub.php
@@ -49,7 +49,7 @@ if($config['cf_add_meta'])
     echo $config['cf_add_meta'].PHP_EOL;
 ?>
 <title><?php echo $g5_head_title; ?></title>
-<link rel="stylesheet" href="<?php echo G5_THEME_CSS_URL; ?>/<?php echo G5_IS_MOBILE ? 'mobile' : 'default'; ?>.css?ver=<?php echo G5_CSS_VER; ?>">
+<link rel="stylesheet" href="<?php echo run_replace('head_css_url', G5_THEME_CSS_URL.'/'.(G5_IS_MOBILE ? 'mobile' : 'default').'.css?ver='.G5_CSS_VER, G5_THEME_URL); ?>">
 <!--[if lte IE 8]>
 <script src="<?php echo G5_JS_URL ?>/html5.js"></script>
 <![endif]-->
@@ -65,16 +65,17 @@ var g5_sca       = "<?php echo isset($sca)?$sca:''; ?>";
 var g5_editor    = "<?php echo ($config['cf_editor'] && $board['bo_use_dhtml_editor'])?$config['cf_editor']:''; ?>";
 var g5_cookie_domain = "<?php echo G5_COOKIE_DOMAIN ?>";
 </script>
-<script src="<?php echo G5_JS_URL ?>/jquery-1.12.4.min.js"></script>
-<script src="<?php echo G5_JS_URL ?>/jquery-migrate-1.4.1.min.js"></script>
-<script src="<?php echo G5_JS_URL ?>/jquery.menu.js?ver=<?php echo G5_JS_VER; ?>"></script>
-<script src="<?php echo G5_JS_URL ?>/common.js?ver=<?php echo G5_JS_VER; ?>"></script>
-<script src="<?php echo G5_JS_URL ?>/wrest.js?ver=<?php echo G5_JS_VER; ?>"></script>
-<script src="<?php echo G5_JS_URL ?>/placeholders.min.js"></script>
-<link rel="stylesheet" href="<?php echo G5_JS_URL ?>/font-awesome/css/font-awesome.min.css">
 <?php
+add_javascript('<script src="'.G5_JS_URL.'/jquery-1.12.4.min.js"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/jquery-migrate-1.4.1.min.js"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/jquery.menu.js?ver='.G5_JS_VER.'"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/common.js?ver='.G5_JS_VER.'"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/wrest.js?ver='.G5_JS_VER.'"></script>', 1);
+add_javascript('<script src="'.G5_JS_URL.'/placeholders.min.js"></script>', 1);
+add_stylesheet('<link rel="stylesheet" href="'.G5_JS_URL.'/font-awesome/css/font-awesome.min.css">', 1);
+
 if(G5_IS_MOBILE) {
-    echo '<script src="'.G5_JS_URL.'/modernizr.custom.70111.js"></script>'.PHP_EOL; // overflow scroll 감지
+    add_javascript('<script src="'.G5_JS_URL.'/modernizr.custom.70111.js"></script>', 2); // overflow scroll 감지
 }
 if(!defined('G5_IS_ADMIN'))
     echo $config['cf_add_script'];