#include "isajet/pilot.h"
      LOGICAL FUNCTION LOGP(IERR)
C
C       SET AND CHECK LIMITS FOR JET MOMENTA
C
#include "isajet/itapes.inc"
#include "isajet/jetlim.inc"
#include "isajet/primar.inc"
#include "isajet/jetpar.inc"
#include "isajet/const.inc"
#include "isajet/dylim.inc"
#include "isajet/keys.inc"
#include "isajet/q1q2.inc"
      DATA PLOW/1.0/
      DATA UNDEF/-.9E9/
C
      LOGP=.TRUE.
      DO 10 I=1,NJET
      FIXP(I)=.FALSE.
      IF(PMIN(I).LT.UNDEF.AND.PMAX(I).LT.UNDEF)  PMAX(I)=HALFE
      IF(PMAX(I).GT.HALFE) PMAX(I)=HALFE
      IF(PMAX(I).LT.UNDEF) FIXP(I)=.TRUE.
      IF(PMIN(I).LT.UNDEF) PMIN(I)=PLOW
      IF(FIXP(I)) THEN
        PMAX(I)=PMIN(I)
        P(I)=PMIN(I)
      ENDIF
      IF(KEYS(3).AND.I.EQ.3.AND.QTMIN.GT.0) PMIN(I)=QTMIN
   10 CONTINUE
C
      RETURN
      END