All ad valorem tax levies, levied by cities under the authority of article 12, section 5 of the constitution of the state of Kansas, are hereby limited or prohibited as authorized by said article 12, section 5, in the manner herein provided. Cities are hereby prohibited from levying any such taxes, the ordinance authorizing the levy of which does not specifically authorize the use of a portion of the proceeds of the levy to pay the principal of and interest on special obligation bonds issued by such city under the provisions of Kan. Stat. Ann. § 12-1774, and amendments thereto, to finance, in whole or in part, such redevelopment project.