Ontocat : latest version form svn . running . changes commited . Search widget : We need an example that can take some results from the returned json output of ontocat . MooTools version : http://www.ajaxdaddy.com/mootools-autocomplete.html or http://stackoverflow.com/questions/3805728/jquery-ui-autocomplete-with-a-json-datasource-generated-from-rails-not-working