Using scriptaculous scripts in CI

[eluser]Computerzworld[/eluser]
Hello. I am using scriptaculous autocomplete script. In that one the javascript is written in querystring format(like http://www.example.com?key=value) and according to CI format which I have used the format is like /key/value. How can I get the value from the url? Please help me. Thanks in advance.

[eluser]Computerzworld[/eluser]
got the solution instead of getting result using

Code:

$uri = $this->uri->uri_to_assoc(3);

i used traditional $_REQUEST['urlkey'] and I got the values......