libjs-extjs binary package in Ubuntu Precise i386

 A cross-browser JavaScript library for building rich internet applications.
 .
 The Ext JS library is widely use in numerous web applications. It includes:
 high performance, customizable UI widgets, well designed and extensible
 Component model, qn intuitive, easy to use API, Commercial and Open Source
 licenses available. Ext JS supports all major web browsers including:
 Internet Explorer 6+, FireFox 1.5+ (PC, Mac), Safari 3+, Opera 9+ (PC, Mac).
 .
 This package doesn't include the documentation that is available in the
 package libjs-extjs-doc.

Source package