(a) If a comptroller is elected or appointed in a municipality, the corporate authorities, by ordinance or resolution, may confer upon the comptroller the powers and provide for the performance of the duties that the corporate authorities deem necessary and proper.
     (b) All of the provisions of this Code relating to the powers and duties of a municipal clerk in connection with (i) the finances, (ii) the treasurer, (iii) the collector, and (iv) the receipt and disbursements of money shall be exercised and performed by the comptroller, if one is elected or appointed. For that purpose, wherever the word “clerk” is used in this Code, it means “comptroller”; and wherever the words “clerk’s office” are used, they mean “comptroller’s office”.