I have one question, let me take an example. when a user visits: http://www.ruby-forum.com/topic/new?forum_id=3 it will show a form that has forum, name, email, subject, text five fields for posting. right? I want to provide more features on this form page, when the user choose a different forum from the first drop list, the form will show more different fields, such as a time selecor, or an option or what ever I want to show to my users. how can I do use ruby/rails or javascript? thanks in advance. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---