Currently, any circuit court may collect a civil case filing surcharge of an amount not to exceed $15 for the maintenance of a law library, the county's or circuit's family services and justice fund, or courtroom renovation and technology enhancement. If the circuit court reimburses the state for salaries of family court commissioners or is the circuit court in Jackson County, the surcharge may be up to $20. This act provides that the circuit court in the City of St. Louis may charge a filing surcharge up to $20.