Qooxdoo is an open source integrated AJAX framework that adheres to LGPL, or EPL (http://www.aliyun.com/zixun/aggregation/13428.html ">eclipse public License) licensed, can be used for commercial projects, it can create object-oriented JS class, can also develop rich client interface, even on the web page to develop a stand-alone program like the interface, is a good AJAX framework.
Using object-oriented JavaScript allows you to develop impressive cross-browser applications. It is not necessary to html,css knowledge. It includes a platform-independent development tool chain, a state-of-the-art graphical user interface tool and Advanced Client-server communication layer.
Qooxdoo 1.5 This is an ordinary minor release, and in many areas, including mobile frameworks, virtual widgets, transport layers, web fonts, and new features supported by developers, have been significantly improved.
Detailed update instructions SEE: http://qooxdoo.org/about/release_notes/1.5
Download Address: Http://downloads.sourceforge.net/qooxdoo/qooxdoo-1.5-sdk.zip