title: How to get a value of a counter within a script tag
body: <p>I would like to retrieve the value of a counter made by a
   script I've not access to, to show it on another webpage.
  The remote webpage looks like this :</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;!doctype html&gt;
  &lt;html lang="fr-FR"&gt;
    &lt;head&gt;
      &lt;script&gt;
        window.changeTargetingData = {"Count":{"total":123456}, "Week":12345};
      &lt;/script&gt;
    &lt;/head&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>Is it possible to get the "total" value since it is inside a script tag ? And to refresh this value, say, every hour ?
  Thanks</p>