html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

button {

    margin: 10px 0 0 10px;

}

anychart.onDocumentReady(function () {

​

    // set stage

    stage = anychart.graphics.create("container");

​

    // set layers

​

    //for the Winter Sales chart

    layer_1 = stage.layer();

    layer_1.zIndex(80);

    //for the Spring Sales chart

    layer_2 = stage.layer();

    //for the Summer Sales chart

    layer_3 = stage.layer();

    //for the Fall Sales chart

    layer_4 = stage.layer();

    //for the buttons

    layer_5 = stage.layer();

    layer_5.zIndex(100);

​

    // set data for the Winter Sales

    var data_1 = [

      {x: "Ice-Cream", value: 5000, fill:"#00FFFF"},

      {x: "Sweets", value: 10000, fill:"#0DD9E6"},

      {x: "Chocolates", value: 19000, fill:"#1AB2CC"},

      {x: "Hot chocolate", value: 16000, fill:"#268CB2"},

      {x: "Cookies", value: 9000, fill:"#336699"}

    ];

​

    // chart type

    var chart_1 = anychart.column();

    chart_1.title("Winter Sales");

    chart_1.padding(50, 0, 0, 0);

    var series_1 = chart_1.column(data_1);

    series_1.stroke(null);

​

    // draw

    chart_1.container(layer_1).draw();

​

    // set data for the Spring Sales

    var data_2 = [

      {x: "Ice-Cream", value: 10000, fill:"#FFCC99"},

      {x: "Sweets", value: 12000, fill:"#F2BFB2"},

      {x: "Chocolates", value: 13000, fill:"#E6B2CC"},

      {x: "Hot chocolate", value: 6000, fill:"#D9A6E6"},

      {x: "Cookies", value: 3000, fill:"#CC99FF"}

    ];

​

    // set series data

    var chart_2 = anychart.column();

    chart_2.title("Spring Sales");

    chart_2.padding(50, 0, 0, 0);

    var series_2 = chart_2.column(data_2);

    series_2.stroke(null);

​

    // draw

    chart_2.container(layer_2).draw();

​

    //set data for the Summer Sales

    var data_3 = [

      {x: "Ice-Cream", value: 16350, fill:"#CCFF33"},

      {x: "Sweets", value: 8930, fill:"#99EF50"},

      {x: "Chocolates", value: 3400, fill:"#66DF6C"},

      {x: "Hot chocolate", value: 2780, fill:"#33CF88"},

      {x: "Cookies", value: 2000, fill:"#00bfa5"}

    ];

​

    // set series data

    var chart_3 = anychart.column();

    chart_3.title("Summer Sales");

    chart_3.padding(50, 0, 0, 0);

    var series_3 = chart_3.column(data_3);

    series_3.stroke(null);

​

    // draw

    chart_3.container(layer_3);

    chart_3.draw();

​

    var data_4 = [

      {x: "Ice-Cream", value: 5000, fill:"#FFA000"},

      {x: "Sweets", value: 7000, fill:"#DF7800"},

      {x: "Chocolates", value: 8440, fill:"#C05000"},

      {x: "Hot chocolate", value: 9800, fill:"#A02800"},

      {x: "Cookies", value: 10250, fill:"#800000"}

    ];

​

​

    // set series data

    var chart_4 = anychart.column();

    chart_4.title("Fall Sales");

    chart_4.padding(50, 0, 0, 0);

    var series_4 = chart_4.column(data_4);

    series_4.stroke(null);

​

    // draw

    chart_4.container(layer_4).draw();

});

​

function winter() {

  stage.suspend();

  layer_1.zIndex(1000000);

  layer_2.zIndex(0);

  layer_3.zIndex(0);

  layer_4.zIndex(0);

  stage.resume();

};

​

function spring() {

  stage.suspend();

  layer_1.zIndex(0);

  layer_2.zIndex(1000000);

  layer_3.zIndex(0);

  layer_4.zIndex(0);

  stage.resume();

};

​

function summer() {

  stage.suspend();

  layer_1.zIndex(0);

  layer_2.zIndex(0);

  layer_3.zIndex(1000000);

  layer_4.zIndex(0);

  stage.resume();

};

​

function autumn() {

  stage.suspend();

  layer_1.zIndex(0);

  layer_2.zIndex(0);

  layer_3.zIndex(0);

  layer_4.zIndex(1000000);

  stage.resume();

};