title: How to use jquery in google chrome extension page action background.js?
body: <p>I'm developing a "page action" google chrome extension.  My manifest has:</p>
  
  <pre><code>...
  "background": { "scripts": ["background.js"] },
  ...
  </code></pre>
  
  <p>In my background.js file I have:</p>
  
  <pre><code>function doSomething() {
       alert("I was clicked!");
  }
  
  chrome.pageAction.onClicked.addListener(doSomething);
  </code></pre>
  
  <p>This works.  Now in my <code>doSomething</code> function I want to read some data on the current page.  It will be a lot easier for me to use jquery to read the data so I can easily target the exact data I want.  How can I incorporate jquery (preferrably served from google's CDN) so that it's accessible to my <code>doSomething</code> function?</p>