functions

Dear Friends,
I have written a function as follows. Here I need to get the sum of balance
before the user provided date. The below function works well, but returns
records as a set of values, rather I need individual columns. What to do?
CREATE OR REPLACE FUNCTION aa(date)
RETURNS SETOF record AS
$BODY$SELECT docacctransactions.accgroupid, Sum(docacctransactions.credit)
AS OSC, Sum(docacctransactions.debit) AS OSD
FROM docs INNER JOIN docacctransactions ON docs.docid =
docacctransactions.docid
WHERE docs.includeinbalcalc=-1 AND docs.transactiontype<>1 AND
docs.docdate<=$1
GROUP BY docacctransactions.accgroupid;
$BODY$
LANGUAGE 'sql' VOLATILE
COST 100
ROWS 1000;
ALTER FUNCTION aa(date) OWNER TO sa;

I am using WinXP SP 2 with PostgreSQL 8.3 with ODBC
Please help.
CPK
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