my pgsql error?

Please could a kind soul help me with this.
I can't find _any_ - however cryptic - docs about plpgsql.

create function nice_date(date) returns varchar as '
declare
t alias for $1;
d text;
m text;
y text;
begin
day := rtrim(to_char(\'t\'::timestamp, \'Day\'));
month := rtrim(to_char(\'t\'::timestamp, \'DD Month\'));
year := rtrim(to_char(\'t\'::timestamp, \'YYYY\' ));
nd := d || m || y;
end;
return nd;
end;' language 'plpgsql';

It seems to load ok, but on exection I get this message.

chris=# select nice_date(date('today'));
NOTICE: plpgsql: ERROR during compile of nice_date near line 12
ERROR: parse error at or near "return"

Please, what am I doing wrong?

--
Sincerely etc.,

NAME Christopher Sawtell
CELL PHONE 021 257 4451
ICQ UIN 45863470
EMAIL csawtell @ xtra . co . nz
CNOTES ftp://ftp.funet.fi/pub/languages/C/tutorials/sawtell_C.tar.gz

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