custom javascript

Easy-configurable, Ajax-enabled JavaScript combobox with autocomplete support.

User interface JavaScript libraries to makeyour web sites and web application.

A highly documented and well tested, suite of JavaScript libraries .

The Dojo Toolkit is an JavaScript toolkit for building web applications.

Powerful Javascript/CSS menus for your Drupal websites, with many options!

Tigra Tree Menu is a free JavaScript DHTML navigation system

The RISE AJAX code generator generates JavaScript code for web servce access.

This is definitely overkill unless you want to build a big app in Javascript.

Rich featured DHTML Javascript tree with Ajax support and powerful API

Ajax-based JavaScript calendar control. Lightweight, cross-browser, easy-to-use.