NAME: SetPalette

     USE: Changes a specified palette color number with a specified
          color.  Color numbers range from 0 to 15 as do colors.
          Changes are seen immediately on the screen.

     DEPENDENCY:  Must first be in graphics mode.  The unit Graph
                  must also be placed in the uses section.

     SYNTAX: SetPalette(ColorNumber : Word; ColorValue : Byte);