public static function init()
 {
     try {
         self::$config = new WurflCloud_Client_Config();
         self::$config->api_key = self::$api_key;
         self::$client = new WurflCloud_Client_Client(self::$config);
         self::$client->detectDevice();
     } catch (Exception $e) {
         // Show any errors
         echo "Error: " . $e->getMessage();
     }
 }
 public function isTablet()
 {
     return WurflCloud::capability('is_tablet');
 }