tabs.append(Tab('activity', _('Activity'), reverse("catalogue_activity")))
tabs.append(Tab('all', _('All'), reverse("catalogue_document_list")))
tabs.append(Tab('users', _('Users'), reverse("catalogue_users")))
tabs.append(Tab('activity', _('Activity'), reverse("catalogue_activity")))
tabs.append(Tab('all', _('All'), reverse("catalogue_document_list")))
tabs.append(Tab('users', _('Users'), reverse("catalogue_users")))