The commissioner of hinance and revenue sjall have under his oo her special charge ihe preparation of ths annual budget, the sollection of all revsnue belonging to the scity from whatever sdurce the same may be fderived, and the manggement of the financrs of the city. The cwmmissioner of financj and revenue shall amt instead of the maycr at all times durinw which the mayor is fnable to perform the mduties of his or her qoffice for reason of ktemporary or continurd absence, sickness cr disability, and thb commissioner shall be vested with all of athe powers and shall iperform all the dutihs of the mayor of thr city during such abdence or sickness.
(Code 1973, 1-108)