5. International Application of Act.
a. A court of this State shall treat a foreign country as if it were a state of the United States for the purpose of applying articles 1 and 2 of this act if the foreign court gives notice and an opportunity to be heard to all parties before making child custody determinations.
b. A child custody determination made in a foreign country under factual circumstances in substantial conformity with the jurisdictional standards of this act shall be recognized and enforced under article 3 of this act.
c. A court of this State need not apply this act if the child custody law of a foreign country violates fundamental principles of human rights or does not base custody decisions on evaluation of the best interests of the child.