Edit Topic

<%= error_messages_for :topic %> <% form_for :topic, :url => topic_path(@forum, @topic), :html => { :method => :put } do |f| -%> <%= render :partial => "form", :object => f %>
<%= submit_tag 'Save Changes', :or => link_to('Cancel', topic_path(@forum, @topic)) %> <% end -%>

Formatting Help
See also the Textile reference here. Don't worry about making mistakes - after adding a reply, you can edit your message as many times as you like.