The legislature may from time to time, by general or local laws applicable to or operative in Lauderdale county, fix, regulate, and alter the fees, commissions, allowances, and salaries, including the method and basis of their compensation, to be charged or received by the judge of probate, sheriff, tax assessor, tax collector, and clerk and register of the circuit court of Lauderdale county; and may place any or all of such officers on a salary and provide for the fees, commissions, allowances, and percentages collectible by such officers to be paid into the treasury from which their salaries are paid.