title: Prevent ordering in gRaphael pie chart
body: <p>I'm trying to draw two pie charts using <code>gRaphael</code>, like so:</p>
  
  <pre><code>var r = new Raphael(0, 0, '100%', '100%'); 
  
  r.piechart(100,120,80,[60,40]);
  r.piechart(300,120,80,[40,60]);
  </code></pre>
  
  <p>This produces the following picture:</p>
  
  <p><img src="https://i.stack.imgur.com/IYxvF.png" alt="Mmmmmm, pie"></p>
  
  <p>The two pie charts are identical even though the order of the arguments I passed to <code>r.piechart</code> is different. Is there any way I can prevent this from happening so that one of the charts will have the 60% blue slice on the bottom and the other one will remain as it is?</p>