This folder contains copies of the required jQuery libraries for use with Dynatree 1.0 Currently using - jquery.js: jQuery 1.7.1 - jquery-ui.custom.js: jQuery UI 1.8.17 with all modules selected. - jquery.min.js and jquery-ui.custom.min.js: Minified versions of the above Current versions are always available at http://jqueryui.com/download Include the required libs like this: Alternatively the current libs may be we included from CDNs, for example