18.37  T2MAIN 

     CALL T2MAIN(IARG,string)

This calls the TOPDRAWER main program.
     INPUT:  string
This  is  a command to perform.  If it is blank then TOPDRAWER will prompt
you until either a RETURN,STOP, or NEW PLOT command is typed.
     OUTPUT:  IARG
          = 1 if a CLEAR command was typed.
          = 2 if a STOP command was typed.


                                   NOTE

     This  subroutine  calls all other TOPDRAWER subroutines.  If you
     call it then all other subroutines  will  be  included  in  your
     program.