You can place this JavaScript tree menu anywhere on your web page, attaching the tree
to any object.
Set up tree parameters to determine the look of the tree.
Specify whether the tree items will be loaded dynamically from XML. dhtmlxTree uses
AJAX for fast and flexible data loading.
Parameters passed to the constructor are:
object to attach tree to (should be loaded before calling constructor)
width of the tree
height of the tree
identifier of level parent to tree root level
Specify Additional parameters of the tree:
setImagePath(url) - method specifies the path to the folder with tree icons