a. In the event that a spouse or dependent child has left the jurisdiction of the court in which the original petition was filed, but is still within the Commonwealth, and the accused is not within the jurisdiction embraced by such court, on motion of the spouse or child, or accused or the person having custody of such child, the court in which the original petition was filed may transfer the case to the court having original jurisdiction to hear such petitions in the county or city in this Commonwealth in which the spouse or child or accused resides. The court to which such case has been transferred shall have power to enforce such orders and decrees as may have been made in the court transferring the case as though the petition had been originally filed therein, and to make such other orders and decrees as may be necessary to enforce the provisions of this chapter.
b. In the event that an appeal is pending in a court of record in this Commonwealth from the decision of any court having jurisdiction to hear such petitions, upon motion of the spouse or child, or the person having custody of the child, stating that such spouse or child no longer resides within the jurisdiction of such court of record, such court, upon reaching its decision, may transfer the case to the court having original jurisdiction to hear such petitions in the county or city in which the spouse or child resides in the same manner and to the same effect as provided in subsection (a) hereof.