Valideringskod
*     *   *****      *     ******   *******  
*   **   *     *    **     *     *     *     
* **           *   * *     *     *     *     
**            *      *     ******      *     
* **        **       *     *           *     
*   **    **         *     *           *     
*     *  *******  *******  *        *******