A sketchy and interactive Meter chart with background and needle images

[No canvas support]

This goes in the documents header:
<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.dynamic.js"></script>
<script src="RGraph.meter.js"></script>
Put this where you want the chart to show up:
<canvas id="cvs" id="cvs" width="237" height="196">
    [No canvas support]
This is the code that generates the chart:
    meter = new RGraph.Meter({
        id: 'cvs',
        min: 0,
        max: 10,
        value: 5,
        options: {
            centerx: 116,
            centery: 136,
            backgroundColor: 'rgba(0,0,0,0)',
            backgroundImageUrl: '../images/meter-sketch.png', // DO NOT ADD / AT THE START OF THE PATH
            backgroundImageStretch: false,
            backgroundImageOffsetx: 5,
            backgroundImageOffsety: 6,
            needleColor: 'rgba(0,0,0,0)',
            needleImageUrl: '../images/meter-sketch-needle.png',// DO NOT ADD / AT THE START OF THE PATH
            needleImageOffsetx: -5,
            needleImageOffsety: -5,
            colorsRanges: [],
            tickmarksLargeCount: 0,
            tickmarksSmallCount: 0,
            border: false,
            labels: false,
            centerpinStroke: 'rgba(0,0,0,0)',
            centerpinFill: 'rgba(0,0,0,0)',
            anglesStart: 2.7,
            anglesEnd: 6.59

    meter.canvas.onclick = function (e)
        var value = meter.getValue(e);
        if (typeof value === 'number') {
            meter.value = value;