cursors from pl/pgsql

Hi all,

I'm trying to use a cursor returned by a function from another function. But I can't seem to get it working correctly. The error message is:
  ERROR:  cursor FOR loop must use a bound cursor variable
I am not sure how to bind it;

my code is similar to this:

create or replace function store_normalize(groupid_in varchar(20)) RETURNS int AS $$
DECLARE
    outputcursor refcursor;
    normrow_r record;
BEGIN
        perform normalize('outputcursor', groupid_in);
        for normrow_r in outputcursor loop
            insert into factordata(factorid, stockid, value, date)
            values (normrow_r.factorid, normrow_r.stockid, normrow_r.value, normrow_r.date);
        end loop;
        close ouputcursor;
        END LOOP;
     return 1;
END;
$$ LANGUAGE plpgsql;


CREATE OR REPLACE FUNCTION normalize(outputcursor refcursor,
    groupid_in varchar(20)
) RETURNS refcursor AS $$
BEGIN

OPEN outputcursor FOR
select * from factordata where groupid = groupid_in;

    RETURN outputcursor;
END;
$$ LANGUAGE plpgsql;

cheers.
Marc