The mayor with the advice and consent of the city commission shall designate two qualified electors of the city as alternate municipal judges, one of whom shall serve as acting municipal judge during the vacation, temporary absence, unavailability or incapacity of the municipal judge. The municipal judge, before absenting himself shall select, or upon his failure to select, the mayor shall select, one designee from those set forth above to serve as temporary municipal judge to exercise all powers of the municipal judge until the return of the municipal judge. Compensation of alternate municipal judges shall be fixed by the city commission. (Prior code § 5-2-4)