The AJAX tree menu has received some minor updates so we have decided to re-release the project. The tree menu now offers a option 'swapping' feature when only one top-level option can be expanded, when a second top-level option is selected any others are collapsed. The tree menu offers a convenient method for organising data, whether links or other information which can be grouped. In our example you will see the tree menu function as a navigation menu, but the tree menu can be used