return two elements

Hello,

how can I write a function that return two or more elements?
I try to return a record but after I don't know how to assign returned value
to a variable. For example,

CREATE OR REPLACE FUNCTION test1() RETURNS record AS '
declare
rec record;
begin
select into rec \'01/01/2005\'::Date as dt_inici,
\'02/02/2005\'::Date as dt_fi;
return rec;
end; '
LANGUAGE 'plpgsql' VOLATILE;

CREATE OR REPLACE FUNCTION test2() RETURNS date AS '
declare
rec record;
begin
-- rec := test1(); << ERROR: syntax error at
or near "rec"
select into rec test1();
return rec.dt_inici; << ERROR: record "rec" has no field
"dt_inici"
end; '
LANGUAGE 'plpgsql' VOLATILE;

Can I return an array?, and how I take returned array?
I search postgres documentation but I don't find it

Thanks in advance,

pere