dhtmlxTree is a JavaScript Tree Menu component that helps you to create user-friendly navigation system for commercial applications or a web site. This JavaScript Tree Control represents your data in the best way and creates advanced cross-browser navigation bar. Powerful client-side API allows you to change menu styles (folder images, fonts, indents, and colors) and manage any part or activity of the tree with javascript. You can define the structure of your tree with javascript or using simple XML-based formatted file or string. Dynamical loading of items by opening of subnodes, gives possibility to build unlimited hierarchical levels in your tree menu. dhtmlxTree has built-in checkboxes providing a handy tool for any kind of navigation system where selection lists are required. Drag-n-drop functionality (within one tree, between trees) can help you to add more features in utilization of your tree view application.