This sample shows, how to use fancytree as a navigation menu.
The tree initialization uses
<a href='URL', target='TARGET'>title</a>
activate handler then uses
to open the the pages in the embedded iframe.
A focused node will automatically be activated after 2 seconds (use the keyboard to try this out).
The [Toggle tree] button in the embedded welcome page also gives an example on how to access a tree that exists outside the own frame.