A pyramid chart

[No canvas support]

This goes in the documents header:
<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.key.js"></script>
<script src="RGraph.pie.js"></script>
Put this where you want the chart to show up:
<canvas id="cvs" width="350" height="350">
    [No canvas support]
</canvas>
This is the code that generates the chart:
<script>
    window.onload = function ()
    {
        var donut = new RGraph.Pie({
            id: 'cvs',
            data: [66,12,33,66],
            options: {
                colors: ['#ccf','#aa0','#ff0','#ccf'],
                strokestyle: 'rgba(0,0,0,0)',
                centerx: 275,
                key: ['Sky','Dark side of pyramid','Sunny side of pyramid'],
                keyColors: ['#ccf','#aa0','#ff0'],
                keyPositionGraphBoxed: false,
                keyPositionY: 150,
                textSize: 20,
                textAccessible: true
            }
        }).draw();
    };
</script>