As used in this subchapter, "order of support or costs" or "judgment of spousal support, support or costs" means a judgment or order for spousal support or payment of money instead of spousal support, for support of children, for support pending a divorce action, for payment of related costs and attorney's fees or for alteration of an existing judgment or order for the custody or support of a child.   [PL 1997, c. 537, §49 (NEW); PL 1997, c. 537, §62 (AFF).]