SYNTAX        VHA_DBSEL(P1,P2,P3,P4,P5,P6,P7,P8,P9,P10,P11,P12)

PURPOSE       Builds function- and window-shell arround TBrowse

ARGUMENTS     P1 - NUMERIC
                 - OPTIONAL
                 - DEFAULT: 1
                 - upper line of window

              P2 - NUMERIC
                 - OPTIONAL
                 - DEFAULT: 1
                 - left column of window

              P3 - NUMERIC
                 - OPTIONAL
                 - DEFAULT: 23
                 - bottom line of window

              P4 - NUMERIC
                 - OPTIONAL
                 - DEFAULT: 78
                 - right column of window

              P5 - ARRAY (character)
                 - OPTIONAL
                 - DEFAULT: all fields in current database
                 - one-dimensional array with (database-)fields to
                   be shown

              P6 - ARRAY (character)
                 - OPTIONAL
                 - DEFAULT: fieldnames
                 - one-dimensional array with descriptions of fields
                   in P5

              P7 - ARRAY (numeric)
                 - OPTIONAL
                 - DEFAULT: empty
                 - one-dimensional array with numeric keyvalues which
                   are active

              P8 - ARRAY (character)
                 - MANDATORY if P7 is present
                 - one-dimensional array with functions to be performed
                   when corresponding key in P7 is pressed

              P9 - CHARACTER
                 - OPTIONAL
                 - DEFAULT: chr(0)
                 - top of database range

              P10- CHARACTER
                 - OPTIONAL
                 - DEFAULT: chr(254)
                 - bottom of database range

              P11- CHARACTER
                 - OPTIONAL
                 - DEFAULT: standard color value CL_BOX
                 - color

              P12- NUMERIC
                 - OPTIONAL
                 - DEFAULT: 3
                 - kind of border of window
                   see VHA_BOX() for values

RETURNS       NUMERIC