Nevermind! Just found the answer on Message#
972354 >How can I detect if any given node is a root node? For example in the following tree
>
>
> A+
> ---AA
> ---AB
> ---AC
> B+
> ---BA
> ---BB
> ---BC
>
>
>how can I know A and B are root nodes?
>
>TIA,
>
>Enmanuel
I'm a mixture of Albert Einstein and Arnold Schwarzenegger. The only trouble is that I got Einstein's body and Schwarzenegger's brain
