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+C--------------------------------------------------------------------------
+ subroutine ftmkyj(ounit,keywrd,intval,comm,status)
+
+C modify an integer value header record
+C
+C ounit i fortran output unit number
+C keywrd c keyword name ( 8 characters, cols. 1- 8)
+C intval i keyword value
+C comm c keyword comment (47 characters, cols. 34-80)
+C OUTPUT PARAMETERS:
+C status i output error status (0 = ok)
+C
+C written by Wm Pence, HEASARC/GSFC, June 1991
+
+ character*(*) keywrd,comm
+ integer ounit,status,intval
+ character value*20,cmnt*48
+
+C find the old keyword
+ call ftgkey(ounit,keywrd,value,cmnt,status)
+
+C check for special symbol indicating that comment should not be changed
+ if (comm .ne. '&')then
+ cmnt=comm
+ end if
+
+C convert integer to character string
+ call fti2c(intval,value,status)
+
+C modify the keyword record
+ call ftmkey(ounit,keywrd,value,cmnt,status)
+ end