# A dynamic Thermometer chart

This goes in the documents header:

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

Put this where you want the chart to show up:

    <canvas id="cvs" width="100" height="400">
        [No canvas support]
    </canvas>

This is the code that generates the chart:

    <script>
        window.onload = function ()
        {
            var value = RGraph.random(0, 100)

            if (typeof thermometer == 'undefined') {

                // A global on purpose
                thermometer = new RGraph.Thermometer({
                    id: 'cvs',
                    min: 0,
                    max: 100,
                    value: value,
                    options: {
                        textAccessible: true
                    }
                });
            } else {
                thermometer.value = value;
            }

            thermometer.grow()

            setTimeout(function ()
            {
                RGraph.clear(thermometer.canvas);
                func();
            }, 5000);
        };
    </script>

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