function execute()
 {
     $context = $this->getContext();
     $controller = $context->getController();
     $request = $context->getRequest();
     $user = $context->getUser();
     $acs_user_info_row = $user->getAttribute('acs_user_info_row');
     // 更新対象となるユーザコミュニティIDを取得
     $user_community_id = $acs_user_info_row['user_community_id'];
     $form = $request->ACSGetParameters();
     // デザインの登録実行
     $ret = ACSUser::set_design($acs_user_info_row, $form['css_file']);
     if ($ret) {
         // 書き込み後、GETの処理へ
         header("Location: ./");
     }
 }