qooxdoo is an advanced open-source JavaScript-based GUI framework. It helps you to implement AJAX-enhanced web 2.0 applications - easier than ever before.
Chain.js – Data Binding Service for jQuery Chain.js is a jQuery plugin, providing unobtrusive data-binding capability that allows you to generate web contents automatically by binding your data to html. Unlike other data-binding frameworks and library, it uses pure DOM, instead of string-based innerHTML approach, so event binding won’t gone during rendering. This library can also be very helpful if you strictly separate your data from your HTML, e.g. developing using MVC-Pattern