redmine/app/views/news/new.html.erb

<h2><%=l(:label_news_new)%></h2>

<%= labelled_form_for @news, :url => project_news_index_path(@project),
                                           :html => { :id => 'news-form', :multipart => true } do |f| %>
  <%= render :partial => 'news/form', :locals => { :f => f } %>
  <%= submit_tag l(:button_create) %>
  <%= link_to_remote l(:label_preview),
                     { :url => preview_news_path(:project_id => @project),
                       :method => 'get',
                       :update => 'preview',
                       :with => "Form.serialize('news-form')"
                     }, :accesskey => accesskey(:preview) %>
<% end %>
<div id="preview" class="wiki"></div>