Adds a helper for preview links.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10031 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/messages/edit.html.erb

@@ -12,14 +12,7 @@
   <%= render :partial => 'form',
              :locals => {:f => f, :replying => !@message.parent.nil?} %>
   <%= submit_tag l(:button_save) %>
-  <%= link_to_remote l(:label_preview),
-                     { :url => { :controller => 'messages',
-                                 :action => 'preview', :board_id => @board, :id => @message },
-                       :method => 'post',
-                       :update => 'preview',
-                       :with => "Form.serialize('message-form')",
-                       :complete => "Element.scrollTo('preview')"
-                     }, :accesskey => accesskey(:preview) %>
+  <%= preview_link({:controller => 'messages', :action => 'preview', :board_id => @board, :id => @message}, 'message-form') %>
 <% end %>
 <div id="preview" class="wiki"></div>