title: JQuery use in a Firefox extension
body: <p>I'm attempting to build an extension which creates div elements and uses jQuery to allow them to be subsequently dragged/resized by the user. I don't think I'm importing the jQuery files correctly however as any jQuery statements I use as part of my overlay.js file do absolutely nothing.</p>
  
  <p>I've added the following lines to my overlay.xul:</p>
  
  <pre><code>&lt;script type="application/x-javascript" src="jquerylib.js" /&gt;
  &lt;script type="application/x-javascript" src="jquery-ui.js" /&gt;
  &lt;script type="application/x-javascript" src="jquery-ui.css" /&gt;
  </code></pre>
  
  <p>However I am unsure what additional steps I need to take to allow functions in my overlay.js file to make use of these.</p>
  
  <p>Thank You</p>