The judge of each circuit court in which juries are impaneled shall, prior to the first day of July in each year, appoint for the next ensuing year ending on the following first day of July not less than two nor more than 15 persons as jury commissioners, who shall be competent to serve as jurors under the provisions of this chapter, and shall be citizens of intelligence, morality, and integrity. The judge of the circuit court of a county having the urban county executive form of government may appoint jury commissioners at any time prior to the first day of November in each year. Any one judge of the judicial circuit may make such appointment under this section. No practicing attorney-at-law, however, shall be appointed as a jury commissioner. Such appointment shall be certified by the judge to the clerk of the court for which the appointment is made, who shall enter the same on the civil order book of such court. A jury commissioner shall be eligible for reappointment. For the purpose of this section, the two divisions of the Circuit Court of the City of Richmond shall be deemed to be separate courts.