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