cursors and function question

Hi

Is there any elegant way not a two steps way I can output the cursor value at each step?

testtbl table has this content

col1 | col2 | col3
------------+------------+------
E1 | CAT1 | 0
E1 | CAT2 | 0
E1 | CAT3 | 0
E4 | CAT1 | 0
E5 | CAT1 | 0
E6 | CAT1 | 0
E7 | CAT1 | 0

This works
BEGIN WORK;
DECLARE fooc CURSOR FOR SELECT * FROM testtbl;
FETCH ALL FROM fooc;
CLOSE fooc;
COMMIT WORK;

col1 | col2 | col3
------------+------------+------
E1 | CAT1 | 0
E1 | CAT2 | 0
E1 | CAT3 | 0
E4 | CAT1 | 0
E5 | CAT1 | 0
E6 | CAT1 | 0
E7 | CAT1 | 0

But
CREATE OR REPLACE FUNCTION foofunc()
RETURNS text AS $$
DECLARE
var2 RECORD;
cur CURSOR FOR SELECT * from testtbl;
BEGIN
OPEN cur;
LOOP
FETCH cur INTO var2;
return var2;
END LOOP;
CLOSE cur;
END; $$
LANGUAGE plpgsql;

select foofunc();
foofunc
-------------------------------
("E1 ","CAT1 ",0)

But I am looking to get

foofunc
-------------------------------
("E1 ","CAT1 ",0)
("E1 ","CATs ",0)
etc

Many thanks
— Armand