[Comment removed on request. -Philipp]

hmm it also gives a number of queries? what does this represent?

You could also try the "API" that Firefox 2 uses:
lxr.mozilla.org/seamonkey/sour ...
suggestqueries.google.com/comp ...

You don't get the query data, but you do get spelling suggestions and a format that's a lot easier to parse from JavaScript. For comparison, Yahoo offers the same format at ff.search.yahoo.com/gossip?out ... .

Cooooooooooool.

It's on AJAX for Dummies.