output <?php get_parent(); ?> without hyphen in template

[bigthanks]

Using GS 3.1's new getPageField function:

Code:

<?php get_parent(0)!='' ? getPageField(get_parent(0),'title') : get_page_title();?>

displays parent title or current page title.

Let's say, on the main navigation I want to create a menu:
-Tutorial
-- GetSimple CMS
-- Wordpress

In the sidebar, I want create a child menu block:
GetSimple CMS : (title header)
-- Plugins (link)
--- How To Install Plugins (link)

Question: how to make the title child menu remain at "GetSimple CMS" even if a user is accessing the "How to Install Plugins"?
Please help and sorry for my english