ON PETITION FOR REHEARING
(Opinion Nov. 4, 1998, 5 Cir., 158 F.3d 335)
Before DAVIS, DUHÉ and PARKER, Circuit Judges. •*728BY THE COURT:
The petition for rehearing filed in this case is GRANTED. Our November 4, 1998 opinion is withdrawn and the judgment VACATED. The case will be set for oral argument in due course.