Angle Bisector Theorem?

In the triangle $ABC$ , the bisector of $\angle A$ intersects the bisector of $\angle B$ at the point $I$ . $D$ is the foot of the perpendicular from $I$ onto $BC$ . Let the bisector of $\angle BIC$ intersect $BC$ at $H$ and the bisector of $AID$ intersect $AB$ at $J$ . Find $\angle JIH$ in degrees.