5423 - Jurisdiction to modify determination.

     § 5423.  Jurisdiction to modify determination.        Except as otherwise provided in section 5424 (relating to     temporary emergency jurisdiction), a court of this Commonwealth     may not modify a child custody determination made by a court of     another state unless a court of this Commonwealth has     jurisdiction to make an initial determination under section 5421     (a)(1) or (2) (relating to initial child custody jurisdiction)     and:            (1)  the court of the other state determines it no longer        has exclusive, continuing jurisdiction under section 5422        (relating to exclusive, continuing jurisdiction) or that a        court of this Commonwealth would be a more convenient forum        under section 5427 (relating to inconvenient forum); or            (2)  a court of this Commonwealth or a court of the other        state determines that the child, the child's parents and any        person acting as a parent do not presently reside in the        other state.        Cross References.  Section 5423 is referred to in sections     5422, 5424, 5428 of this title.