SUBROUTINE SETTAB(ITAB,ITBTBL)
      DIMENSION ITBTBL(1)
      COMMON /TKTRNX/ TMINVX,TMINVY,TMAXVX,TMAXVY,TREALX,TREALY,
     1 TIMAGX,TIMAGY,TRCOSF,TRSINF,TRSCAL,TRFACX,TRFACY,
     2 TRPAR1,TRPAR2,TRPAR3,TRPAR4,TRPAR5,TRPAR6,KMOFLG(8),KPAD2,
     3 KBAUDR,KGNFLG,KGRAFL,KHOMEY,KKMODE,KHORSZ,KVERSZ,KTBLSZ,
     4 KSIZEF,KLMRGN,KRMRGN,KFACTR,KTERM,KLINE,KZAXIS,KBEAMX,KBEAMY,
     5 KMOVEF,KPCHAR(5),KDASHT,KMINSX,KMINSY,KMAXSX,KMAXSY,KEYCON,
     6 KINLFT,KOTLFT,KUNIT
      KGNFLG=0
      IF(ITAB.LE.0)GO TO 10
      I=1
20    IF(ITBTBL(I).EQ.ITAB)GO TO 10
      IF(ITAB.LT.ITBTBL(I))GO TO 60
      IF(ITBTBL(I).EQ.0)GO TO 60
      I=I+1
      IF(I.LE.KTBLSZ)GO TO 20
30    KGNFLG=1
10    RETURN
60    ITEMP=ITBTBL(I)
      ITBTBL(I)=ITAB
70    IF(ITEMP.EQ.0)GO TO 10
      I=I+1
      IF(I.GT.KTBLSZ)GO TO 30
      ITEMPA=ITBTBL(I)
      ITBTBL(I)=ITEMP
      ITEMP=ITEMPA
      GO TO 70
      END