An SVG Semi-circular Progress chart with a tooltip

A Semi-circular Progress which has a tooltip enabled. The center label has decimals enabled but other than that this is a pretty basic progress bar.

This goes in the documents header:
<script src="RGraph.svg.common.core.js"></script>
<script src="RGraph.svg.semicircularprogress.js"></script>
Put this where you want the chart to show up:
<div style="width: 450px; height: 250px" id="chart-container"></div>
This is the code that generates the chart:
    new RGraph.SVG.SemiCircularProgress({
        id: 'chart-container',
        min: 0,
        max: 10,
        value: 7.8,
        options: {
            labelsCenterDecimals: 1