How to use dblink within pl/pgsql function:

What I'd like to do is use dblink to extract a few rows from a remote
database and manipulate these within a function in pl/pgsql. Something
like this:

CREATE OR REPLACE FUNCTION find() RETURNS INTEGER AS '
DECLARE
count INTEGER:
myrec RECORD;
BEGIN
FOR myrec IN SELECT * FROM DBLINK(''select x,y from mytab'') as
temp(x integer, y real) LOOP
count := count + 1;
END LOOP;
RETURN count;
END; ' LANGUAGE 'plpgsql';

But this syntax does not work, and I cannot find a form which does work.
Does anyone know how to do this?

Thanks in advance.

--
Clive Page