title: jqPlot data renderer with multiple plots
body: <p>I have multiple plots, and, in line with the method shown in the example at the bottom of <a href="http://www.jqplot.com/deploy/dist/examples/selectorSyntax.html" rel="nofollow">this</a> page, I have been creating them like this: </p>
  
  <pre><code>$("div.container").jqplot(dataSeries1, dataSeries2, options);
  </code></pre>
  
  <p>However, I want to use a data renderer, reading from a JSON file.</p>
  
  <p>So how should the above incantation be modified to allow this? I know how data renderers work, but all the <a href="http://www.jqplot.com/deploy/dist/examples/data-renderers.html" rel="nofollow">examples</a> involve returning a data series for a single plot. Is it even possible to use a renderer with multiple plots? Simply returning [ dataSeries1, dataSeries2 ] doesn't work. I guess given that the signature for a renderer is</p>
  
  <pre><code>function(userData, plotObject, options) { ... return data }
  </code></pre>
  
  <p>It can only ever apply to a single plot at a time.</p>