Sec. 5. (a) If a judge appointed to act as judge of the domestic relations court is:
(1) on vacation;
(2) absent; or
(3) for any reason unable to perform the judge's duties;
a majority of the judges of the superior and circuit courts may appoint another of the judges to act as judge of the domestic relations court during that period.
(b) A judge appointed under subsection (a) has all the powers and authority of the judge of the domestic relations court in cases under this chapter.