Including the Forms.js javascript file in your site will automatically add AJAX functionality to all your forms that have a class name of 'ajax'.

The Tree javascript class is designed to take a standard HTML unordered list and automatically transform it into a collapsible tree. Each list can contain one or more collapsible trees, nested to any depth. CSS classes are assigned to each node in the Tree at run-time, making the HTML code as clean as possible.

The goal of the Fixedbox class is to enable elements to behave like they have "fixed" positioning, without having to overcome any browser hurdles.