Milonic JavaScript Menu

This is a Milonic module as far as I know.
Please see: http://milonic.com/treemenu/

I'm using the treeview.js for creating a nice treeview. The only thing that's missing is the ability to add icons to the nodes that provide additional functionality.

Here's that I'd like to do:

[+]--[+]----[E] [D] Some node
|
[+]----[E] [D] My Node Name
|
[+]----[E] [D] My other node name ...