--- a/src/ztfy/myams/viewlet/toplinks/interfaces.py	Wed Jul 02 10:29:06 2014 +0200
+++ b/src/ztfy/myams/viewlet/toplinks/interfaces.py	Wed Jul 02 10:30:01 2014 +0200
@@ -23,6 +23,10 @@
     """Top links viewlet manager interface"""
 
 
+#
+# Top dropdown menus viewlet
+#
+
 class ITopLinksMenu(IViewlet):
     """Top link menu"""
 
@@ -51,3 +55,35 @@
 
     viewlets = List(title=_("Top links menus"),
                     value_type=Object(schema=ITopLinksMenu))
+
+
+#
+# Top tabs viewlet
+#
+
+class ITopTabsTab(IViewlet):
+    """Top tabs tab"""
+
+    css_class = TextLine(title=_("Tab CSS class"),
+                         required=False)
+
+    label = TextLine(title=_("Tab label"))
+
+    click_handler = TextLine(title=_("Tab click handler"))
+
+    url = TextLine(title=_("Tab link location"))
+
+    data = Dict(title=_("Tab data attributes"),
+                key_type=TextLine(),
+                value_type=TextLine())
+
+
+class ITopTabsViewlet(IViewlet):
+    """Top tabs viewlet"""
+
+    label = TextLine(title=_("Main label"))
+
+    css_class = TextLine(title=_("Main CSS class"))
+
+    viewlets = List(title=_("Top tabs items"),
+                    value_type=Object(schema=ITopTabsTab))