title: Source Code of Ext JS Examples
body: <p>I saw some examples from a JavaScript library: Ext JS i.e.:</p>
  
  <p><a href="http://dev.sencha.com/deploy/ext-4.0.0/examples/feed-viewer/feed-viewer.html" rel="nofollow">http://dev.sencha.com/deploy/ext-4.0.0/examples/feed-viewer/feed-viewer.html</a></p>
  
  <p>I have some knowledge about JQuery developed some applications. How can I get sources of that examples to try them myself and what should I download to run them?</p>