private static function get_client()
 {
     global $displetretsidx_option;
     if (!empty($displetretsidx_option['google_client_id']) && !empty($displetretsidx_option['google_client_secret']) && !empty($displetretsidx_option['google_api_key'])) {
         $client = new displetretsidx_Google_Client();
         //$client->setApplicationName("Google UserInfo PHP Starter Application");
         $client->setClientId($displetretsidx_option['google_client_id']);
         $client->setClientSecret($displetretsidx_option['google_client_secret']);
         $client->setDeveloperKey($displetretsidx_option['google_api_key']);
         $client->setRedirectUri(home_url('wp-login.php?loginGoogle=1'));
         $client->setScopes(array('https://www.googleapis.com/auth/userinfo.email', 'https://www.googleapis.com/auth/userinfo.profile'));
         return $client;
     }
     return false;
 }