We start by including the donutRenderer plugin file. With donut charts, we can use seriesColors for each ring, so we create arrSeriesColors to store the colors of our outer rings. Then, we create innerRingColors to hold the matching colors for our inner ring wedges:

<script src="../js/jqplot.donutRenderer.min.js"></script>
<script src="../js/functions.js"></script>
<script>
var arrSeriesColors = "#4bb2c5", "#F4CA4A", "#EAA228", "#E4CAAB", "#00CC55", "#AED8D0", "#F2C185"];
var innerRingColors = [];

Next, we create our function to parse our remote data. Since we have multiple levels in our JSON, we decide to store the browsers and versions objects in variables to make our code a little easier to read. We pass the browser...