Google search for gitter.im rooms

Javascript a google search on gitter.im to search gitter posts. The fastest way would be to search on site:gitter.im and the keyword, then filter on user selected specific rooms.
An example script can be found here http://www.javascriptkit.com/script/script2/google_site_search2.shtml

Start by locating the portal's existing search entry point and how room selections are represented. Review the linked Google site-search example and define the query and room-filter behavior described in the issue. Done means users can search Gitter posts on gitter.im and limit results to selected rooms.

Written by the indexing model from the issue text.