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