(a) In Bullock County the following county officials shall receive an expense allowance in the amount specified as follows, viz:
District Attorney .................................. $400.00 per month
Sheriff ................................................. $400.00 per month
Circuit Judge ........................................ $400.00 per month
District Judge ....................................... $400.00 per month
Circuit Clerk ......................................... $400.00 per month
The expense allowances provided for by this section shall be in lieu of all other expense allowances provided by law and shall be paid out of the county general fund.
(b) The Bullock County Commission, in its discretion, shall pay the expense allowances if and when funds are available or if expense allowances are to be paid. The district attorney shall receive his or her expense allowance first and the sheriff shall receive his or her expense allowance second; Thereafter, if and when funds are available, the remaining officials, in an order determined by the county commission, shall receive their expense allowances.