jsgauge - setValue gives Illegal invocation in Chrome
<p>I'm using <a href="http://code.google.com/p/jsgauge/" rel="nofollow">jsgauge</a> initialised with:</p>

<pre><code>$('#gauge').gauge('init');
</code></pre>

<p>If I try to call</p>

<pre><code>$('#gauge').gauge('setValue', 50);
</code></pre>

<p>With Chrome I get</p>

<blockquote>
  <p>Uncaught TypeError: Illegal invocation</p>
</blockquote>

<p>But it works on Firefox &amp; IE9.<br>
Do you have an idea of why ?</p>
