--- a/css/screen.css	Mon Mar 14 17:21:35 2011 +0100
+++ b/css/screen.css	Tue Mar 15 14:58:31 2011 +0100
@@ -245,3 +245,19 @@
     margin: 2em 2em 0.25em 0;
 }
 
+#star a {
+    display: block;
+    overflow: hidden;
+    width: 16px;
+    height: 16px;
+    text-indent: 16px;
+    background: url('../img/star_off.png') no-repeat 50% 50%;
+    position: absolute;
+    top: 64px;
+    left: 3%;
+    margin-left: 17.5em;
+    margin-top: -0.2em;
+}
+#star a.unsubscribe {
+    background-image: url('../img/star_on.png');
+}

--- a/europython.py	Mon Mar 14 17:21:35 2011 +0100
+++ b/europython.py	Tue Mar 15 14:58:31 2011 +0100
@@ -68,5 +68,36 @@
     }
     del _
 
+    def subscribeLink(self, page):
+        """ Return subscribe/unsubscribe link to valid users
+
+        @rtype: unicode
+        @return: subscribe or unsubscribe link
+        """
+        if not ((self.cfg.mail_enabled or
+                 self.cfg.jabber_enabled) and self.request.user.valid):
+            return ''
+
+        _ = self.request.getText
+        if self.request.user.isSubscribedTo([page.page_name]):
+            action, text = 'unsubscribe', _("Unsubscribe")
+        else:
+            action, text = 'subscribe', _("Subscribe")
+        if action in self.request.cfg.actions_excluded:
+            return ''
+        return page.link_to(self.request, text=text,
+                            querystr={'action': action},
+                            css_class='nbsubscribe %s' % action,
+                            rel='nofollow')
+
+    def wikipanel(self, d):
+        """ Create wiki panel """
+        _ = self.request.getText
+        html = [
+            u'<div id="star">', self.subscribeLink(d['page']), '</div>',
+            u'<div class="sidepanel">', self.navibar(d), u'</div>',
+            ]
+        return u'\n'.join(html)
+
 def execute(request):
     return Theme(request)