html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

​

    // create a data set

    var data = anychart.data.set([

      ["January", 12000, 10000, 7000, 11000],

      ["February", 15000, 12000, 9000, 13000],

      ["March", 16000, 15000, 14000, 12000],

      ["April", 15000, 11000, 13000, 10000],

      ["May", 10000, 9000, 11000, 6000]

    ]);

​

    // map the data

    var seriesData1 = data.mapAs({x: 0, value: 1});

    var seriesData2 = data.mapAs({x: 0, value: 2});

    var seriesData3 = data.mapAs({x: 0, value: 3});

    var seriesData4 = data.mapAs({x: 0, value: 4});

​

    // create a chart

    var chart = anychart.column();

​

    // create series, set the data and names

    var series1 = chart.column(seriesData1);

    var series2 = chart.column(seriesData2);

    var series3 = chart.column(seriesData3);

    var series4 = chart.column(seriesData4);

    series1.name("2015");

    series2.name("2016");

    series3.name("2017");

    series4.name("2018");

​

    /* prevent points from being selected

    when they are clicked on */

    chart.interactivity().selectionMode("none");

​

    /* prevent points from being deselected

    when a click happens outside of them */

    chart.interactivity().unselectOnClickOutOfPoint(false);

​

    // enable the legend

    var legend = chart.legend();

    legend.enabled(true);

​

    /* listen to the legendItemMouseDown event

    and prevent the default behavior of the legend */

    legend.listen("legendItemMouseDown", function(e) {

      e.preventDefault();

    });

​

    /* listen to the legendItemClick event,

    select / deselect the series,

    and configure the appearance of the legend item */

    legend.listen("legendItemClick", function(e) {

      var series = chart.getSeriesAt(e.itemIndex);

      var selected = series.meta("selected");

      if (!selected) {

        series.select();

        series.legendItem().iconFill("#455a64");

      } else {

        series.unselect();

        series.legendItem().iconFill(series.color());

      }

      series.meta("selected", !selected);

    });

​

    /* listen to the legendItemMouseOver event

    and prevent the default behavior of the legend

    if the series is selected */

    legend.listen("legendItemMouseOver", function(e) {

       if (chart.getSeriesAt(e.itemIndex).meta("selected")) {

         e.preventDefault();

       }

    });

​

    // set the chart title

    chart.title().useHtml(true);

    chart.title("Events: Legend Items (Multiple Series)<br><br>" +

                "<span style='font-size:12; font-style:italic'>" +

                "Click on Legend Items");

​

    // set the container id

    chart.container("container");

​

    // initiate drawing the chart

    chart.draw();

});