html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.gauges.circular([{value: 7.5}]);

    chart.axis();

    chart.needle();

​

    // Set event listener on the chart.

    chart.listenOnce('click', function (e) {

        chart.title('You can\'t click anymore');

    });

​

    chart.title('Click on the chart');

    chart.container('container');

    chart.draw();

});