Index: base.rhtml
===================================================================
--- base.rhtml	(revision 3521)
+++ base.rhtml	(working copy)
@@ -40,10 +40,12 @@
     </div>
     
     <h1><%= page_header_title %></h1>
-    
-    <div id="main-menu">
-        <%= render_main_menu(@project) %>
+   
+    <%  menu_html = render_main_menu( @project ) %>
+    <div id="main-menu" class="<%= menu_html.nil? ? 'empty' : '' %>">
+        <%= menu_html %>
     </div>
+
 </div>
 
 <%= tag('div', {:id => 'main', :class => (has_content?(:sidebar) ? '' : 'nosidebar')}, true) %>