diff --git a/cyc-logo02.png b/cyc-logo02.png
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diff --git a/doc/menu.txt b/doc/menu.txt
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+Creating and Rendering Menus
+============================
+
+We first set up a test environment:
+
+    >>> from zope.app.testing import ztapi
+
diff --git a/interfaces.py b/interfaces.py
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+++ b/interfaces.py
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+#
+#  Copyright (c) 2005 Helmut Merz helmutm@cy55.de
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+"""
+cybertools interface definitions.
+
+$Id$
+"""
+
+from zope.interface import Interface
+from zope.app.container.interfaces import IOrderedContainer
+
+from zope.schema import Text, TextLine, List, Object, Int
+
+
+class IMenu(Interface):
+    """ A Menu.
+    """
+
diff --git a/menu.py b/menu.py
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+++ b/menu.py
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+#
+#  Copyright (c) 2005 Helmut Merz helmutm@cy55.de
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+"""
+Definition of the Menu class.
+
+$Id$
+"""
+
+from zope.interface import implements
+from zope.app.container.ordered import OrderedContainer
+from zope.app import zapi
+
+from interfaces import IMenu
+
+class Menu(OrderedContainer):
+
+    implements(IMenu)
+
+    title = u''
diff --git a/tests/__init__.py b/tests/__init__.py
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+++ b/tests/__init__.py
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+"""
+$Id$
+"""
+
diff --git a/tests/test_cybertools.py b/tests/test_cybertools.py
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+++ b/tests/test_cybertools.py
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+# $Id$
+
+import unittest
+from zope.testing.doctestunit import DocFileSuite
+from zope.app.testing import ztapi
+from zope.interface.verify import verifyClass
+#from zope.app.tests.setup import placelessSetUp
+from zope.app.testing.setup import placefulSetUp
+from zope.app.container.interfaces import IContained
+from zope.app.folder import Folder
+from zope.app import zapi
+
+from cybertools.menu import Menu
+from cybertools.interfaces import IMenu
+
+class TestMenu(unittest.TestCase):
+    "Test methods of the Menu class."
+
+    def setUp(self):
+#        placelessSetUp()
+        placefulSetUp()
+        self.f1 = Folder()
+        self.f1.__name__ = u'f1'
+        self.m1 = Menu()
+        self.f1['m1'] = self.m1
+
+    def tearDown(self):
+        pass
+
+    # the tests...
+
+    def testInterface(self):
+        self.assert_(IMenu.providedBy(Menu()),
+            'Interface IMenu is not implemented by class Menu.')
+        self.assert_(IContained.providedBy(Menu()),
+            'Interface IContained is not implemented by class Menu.')
+        verifyClass(IMenu, Menu)
+
+def test_suite():
+    return unittest.TestSuite((
+            unittest.makeSuite(TestMenu),
+            DocFileSuite('../doc/menu.txt'),
+            ))
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='test_suite')