[SOLVED] Form method GET in SEO-Friendly URL schema

[eluser]sirtea[/eluser]
Hello.

I'm trying to create a search page with codeigniter. Something like:

<form action="http://whatever.com/books/search" method="get">
<input type="text" name="query" />
<input type="submit" />
</form>

I expect to generate a URL like http://whatever.com/books/search/hamlet
and every user could use this kind of URL directly.

However, http protocol generates http://whatever.com/books/search?query=hamlet
I have read a lot of times about how to accept normal GET parameters, but I don't want this.
I want the HTML to pass directly the codeigniter-style URL.

I am looking at two possible solutions:
a) javascript onclick(), intercepting submit button and redirecting according to query
(concatenate the target URL on-the-fly/submit)
b) POSTing parameters to a fake method, who redirects at the concatenation of parameters

¿Any other idea?

Thanks