openproject/app/views/messages/edit.html.erb

<h2><%= link_to h(@board.name), :controller => '/boards', :action => 'show', :project_id => @project, :id => @board %> &#187; <%=h @message.subject %></h2>

<%= form_for @message,
             :url => topic_path(@message),
             :method => :put,
             :html => {:multipart => true, :id => 'message-form'} do |f| %>
  <%= render :partial => 'form', :locals => {:f => f, :replying => !@message.parent.nil?} %>
  <%= submit_tag l(:button_save) %>
  <%= link_to l(:label_preview),
                preview_topic_path(@message),
                :class => 'preview',
                :id => 'message-form-preview' %>
<% end %>
<div id="preview" class="wiki"></div>