His second goal tied the game, 2-2, at 9:28 of the second period.
A goal by Joel Kwiatkowski gave Florida a 3-2 lead heading into the second intermission, and Jozef Stumpel capped the scoring with an empty-netter with about 20 seconds left.
Olesz also assisted on a goal, Chris Gratton had two assists, and Ed Belfour made 30 saves on 32 shots for the Panthers, who have won their last two games.
On the power play, Florida converted its only chance, and New Jersey went 0-for-2.
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