SCR_CURMOV

       To mov the cursor around the screen relative to its original position.

       scr_curmov [, cmd, n]

       cmd  --  An integer indicating the direction in which to move the curs.
                     0 : Up
                     1 : Down  (Default)
                     2 : Left
                     3 : Right
       n    --  The number of spaces to move the cursor.  If not specified
                (or if less than or equal to zero), this is set to one.

       None.

       None.

       This procedure will only work with DEC compatible equipment (or
       terminal emulators).

       A string containing the appropriate DEC terminal command is put
       together and printed.  NOTE:  In general, the DEC commands correspond
       to the ANSI escape sequences.

       Written by Michael R. Greason, STX, May 1990.
       Converted to IDL V5.0   W. Landsman   September 1997

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