does this require a stored procedure?

Is it possible to rewrite this SQL query so it returns one row having
the columns title and contentType, instead of two rows with the sname
column? I could write a stored procedure to lookup the title or
content-type based on the rec_id, but I would rather do it in a single
query if it's possible.

# SELECT rec_id, url, sname, sval FROM url, urlinfo
WHERE url.rec_id = 1821
AND url.rec_id = urlinfo.url_id
AND sname in('title','Content-Type');

rec_id | url | sname | sval
-------+--------------
+---------------------------------------------------------
1821 | http://.../ | title | Architectural Research
Consultants, Incorporated Contact Information
1821 | http://.../ | Content-Type | text/html
(2 rows)

mnogosearch=> \d urlinfo
Table "public.urlinfo"
Column | Type | Modifiers
--------+---------+-----------
url_id | integer | not null
sname | text | not null
sval | text | not null
Indexes: urlinfo_id btree (url_id)

Thanks,

Alex Rice, Software Developer
Architectural Research Consultants, Inc.
alrice(at)ARCplanning(dot)com
alrice(at)swcp(dot)com