ยง 1222. Taxes to be in addition to others. Except as expressly
otherwise provided in this article, any tax imposed under the authority
of this article shall be in addition to any and all other taxes
authorized or imposed under any other provision of law. This article
shall not be construed as limiting the power of any city, county or
school district to impose any other tax which it is authorized to impose
under any other provision of law.