public static function instance()
 {
     if (self::$instance === null) {
         self::$instance = new X_PageParser_AuthDeposit_Volatile();
     }
     return self::$instance;
 }
 /**
  * @return the $authDeposit
  */
 public function getAuthDeposit()
 {
     if ($this->authDeposit === null) {
         $this->authDeposit = X_PageParser_AuthDeposit_Volatile::instance();
     }
     return $this->authDeposit;
 }