crowdint/rails3-jquery-autocomplete — pull request #179 by risuiowa (2012-10-24 18:50:29+00:00)
Title: Added railsAutocomplete.source trigger

... This allows to add custom event binding behavior similar to what is currently supported in the select event. I'm using this to then autoclear fields when no matches are found in the source; however I imagine this could be used for other behaviors as well.