--- a/zpt/project/project_index_html.zpt	Fri Sep 19 13:04:42 2014 +0200
+++ b/zpt/project/project_index_html.zpt	Tue Sep 30 12:37:21 2014 +0200
@@ -85,16 +85,18 @@
   <!-- right column -->
   <div class="sidebar" metal:fill-slot="sidebar">
 
-    <!-- this project is part of --
+    <!-- this project is part of -->
+    <tal:block tal:condition="oldnav">
     <div class="sideblock"
       tal:define="parents here/getSuperProjects;" tal:condition="parents">
       <div class="project parent">
         Part of:
         <a tal:define="parent python:parents[-1]" tal:content="parent/getLabel"
-           tal:attributes="href python:parent.getUrl(baseUrl=proBaseUrl)+test(here.isArchivedProject(),'?showArchive=yes','')" />
+           tal:attributes="href python:parent.getUrl(baseUrl=proBaseUrl)+test(here.isArchivedProject(),'?archived=2','')" />
       </div>
-      <!-- end parent --
+      <!-- end parent -->
     </div>
+    </tal:block>
     <!-- sideblock -->
 
     <!-- related projects -->
@@ -151,35 +153,36 @@
     </tal:block>
     <!-- related publications -->
 
-    <!-- projects covered --
+    <!-- projects covered -->
+    <tal:block tal:condition="oldnav">
     <div class="sideblock"
-         tal:define="showArchive python:(request.get('showArchive','no')=='yes');
-                     children here/getSubProjects;"
+         tal:define="children python:here.getSubProjects(archived=archived);"
          tal:condition="children">
       <h2>
         Projects
         <span class="proj_state">
-          <a href="?" tal:omit-tag="python:not (here.isArchivedProject() or showArchive)">current</a>
+          <a href="?" tal:omit-tag="python:not (here.isArchivedProject() or archived==2)">current</a>
           &nbsp; 
-          <a href="?showArchive=yes" tal:omit-tag="python:here.isArchivedProject() or showArchive">completed</a>
+          <a href="?archived=2" tal:omit-tag="python:here.isArchivedProject() or archived==2">completed</a>
         </span>
       </h2>
       <tal:y tal:repeat="child children">
-        <tal:x tal:condition="python:not (child.isArchivedProject() or showArchive)">
+        <tal:x tal:condition="python:not child.isArchivedProject()">
           <div class="project">
             <a tal:content="child/getLabel"
               tal:attributes="href python:child.getUrl(baseUrl=proBaseUrl)" />
           </div>
         </tal:x>
-        <tal:x tal:condition="python:child.isArchivedProject() and (here.isArchivedProject() or showArchive)">
+        <tal:x tal:condition="python:child.isArchivedProject()">
           <div class="project inactive" tal:define="started child/getStartedAt">
             <a tal:content="child/getLabel"
-              tal:attributes="href python:child.getUrl(baseUrl=proBaseUrl)" /> 
+              tal:attributes="href python:child.getUrl(baseUrl=proBaseUrl)+'?archived=2'" /> 
             (<span tal:condition="started" tal:content="string:$started-"/><tal:x tal:condition="not:started">Completed: </tal:x><span tal:content="child/getCompletedAt"/>)
           </div>
         </tal:x>
       </tal:y>
     </div>
+    </tal:block>
     <!-- projects covered -->
 
     <!-- custom info blocks -->