A basic Meter chart

This goes in the documents header:

<script src="RGraph.common.core.js"></script>
<script src="RGraph.meter.js"></script>

Put this where you want the chart to show up:

<canvas id="cvs" width="600" height="300">
    [No canvas support]
</canvas>

This is the code that generates the chart:

<script>
    window.onload = function ()
    {
        var meter = new RGraph.Meter({
            id: 'cvs',
            min: 0,
            max: 100,
            value: 45,
            options: {
                greenColor: 'Gradient(green:#040)',
                yellowColor: 'Gradient(#ff0:#440)',
                redColor: 'Gradient(#f00:#400)',
                valueText: true,
                valueTextUnitsPost: ',000k',
                textAccessible: false
            }
        }).draw();
    };
</script>