Listing users <%= text_field_tag 'search', @search %> <%= observe_field :search, # :frequency => 0.5, # :update => 'ajaxWrapper', # :before => "Element.show('spinner')", # :complete => "Element.hide('spinner')", # :url => {:action=>'search', :only_path => false}, # :with => "'search=' + encodeURIComponent(value)" %>