API docs

A Tree:

A dynamic tree with multiple node types:

The nodes of this tree are read from YQL, any replies rely on that service. The nodes have references to albums and artists so that by clicking on them or pressing enter while they have the focus, it will navigate away.

A tree with checkboxes for selection

This tree is built dynamically with randomized labels just to show selection, supposedly of files/folders. The Save button will list in the container below the JSON for those files/folders marked as selected.

The container for this tree has class="yui3-fw-treeview-checkbox" set because node selection is always active in TreeView, it just needs to be made visible through CSS styles, which the default stylesheet contains and this className activates.