The value of the selected element will be passed as a form parameter:
<%= form_start_tag :url=>{:controller=>'some_controller', :action=>'some_action'} %> <select name="my_select_box"> <option value="1">First Option</option> <option value="2">Second Option</option> </select> <%= form_end_tag %>
and
class Somecontroller def some_action value = params[:my_select_box] end end
Cheers, Max