html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.line([6, 10, 18, 11, 9]);

    chart.yScale().minimum(0);

    chart.xScale("linear");

​

    var controller = chart.annotations();

​

    var annotation = controller.ellipse();

​

    annotation.xAnchor(1.9);

    annotation.valueAnchor(17);

    annotation.secondXAnchor(2.1);

    annotation.secondValueAnchor(19);

​

    // Get markers.

    var annotationMarkers = annotation.markers();

    annotationMarkers.enabled(true);

​

    chart.title("Get and enable annotation markers.");

    chart.container("container");

    chart.draw();

});