dhtmlxTree :: Ajax-Based JavaScript Tree 2.6

dhtmlxTree is a JavaScript DHTML treeview that provides a robust and flexible solution to represent and manage hierarchical data. The tree can load its content dynamically from server using Ajax or directly from on-page XML data-island. Ready-to-use solution for server-side integration is available (PHP, Java, .Net, CF). Advanced features include rich API, inline node editing, drag-and-drop, built-in checkboxes, and context menu. GPL-licensed.