Live-search is a project mainly written in JavaScript, it's free.
== Live Search
Forked from http://andreaslagerkvist.com/jquery/live-search/
== Example Code
HTML
JS
jQuery('#jquery-live-search-example input[name="q"]').liveSearch({url: Router.urlForModule('SearchResults') + '&q='});
== Changes
New configuration options
Support for multiple search urls
$('#search).liveSearch({ url: ["one-search?q=", "two-search?q="] })
== License http://creativecommons.org/licenses/by/3.0
== Copyright 2008 Andreas Lagerkvist (andreaslagerkvist.com)
== Requires jquery, jquery.liveSearch.css