Preheat oven to 325 degrees.  Spray the bottom of a baking pan with Pam.  Combine the juice, brown sugar, jelly and mustard in a bowl using a whisk.

Place the ham in the pan and pour 1/2 of the mixture over the top of it.

Cover the entire ham with foil.  Bake for 2 1/2 hours.  Remove from the oven and baste the ham with the remainder of the juice mixture.  Return to the oven uncovered for another hour or until the outside is slightly brown.  Remove from the oven and allow the ham to rest for at least 30 minutes before slicing.  Pour the drippings in a bowl and set aside to use for drizzling on top of the ham once it has been sliced.

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