Как вывести несколько графиков Canvas?

Может кто устанавливал на сайте графики Canvas? Подскажите, не могу вывести несколько графиков одновременно. Отображается только один график.
Подключаю графики из внешнего файла js, либо вставляю между head - бесполезно.

На странице вывожу так: <div id="chartContainer"></div> и <div id="chartContainer-2"></div>

Подключаю из внешнего файла или между head вот эти два скрипта (они идентичные, разница лишь в цвете графиков и значениях.):

window. onload = function () {
    var chart= new CanvasJS.Chart("chartContainer-2", {

      animationEnabled: true, 
      zoomEnabled:true,
      legend:{
        verticalAlign: "bottom",
        horizontalAlign: "center"
      },
      axisY:{
        includeZero: false,
        prefix: "$",
      gridColor: "#DDD",
      gridThickness: 1,
      gridDashType: "dot",
      tickThickness: 1,
      interval: 250,
        maximum: 1900
      },
     axisX:{      
            valueFormatString: "DD-MM-YY",
         gridColor: "#DDD",
         gridDashType: "dot",
         tickThickness: 1,
         gridThickness: 1
      },
    toolTip: {
        borderColor: "#61B057",
      backgroundColor: "#fbfbfb",
      borderThickness: 2,
      cornerRadius: 3,
      fontStyle: "normal",
      fontFamily: "tahoma"
      },
    data: [
      {
        type: "spline",
        markerSize: 8,
      markerColor: "#61B057",
      markerBorderColor: "#FFF",
        markerBorderThickness: 1,
      lineColor: "#61B057",
        toolTipContent: "{x} <strong>${y} <strong>",
        dataPoints: [
        { x: new Date(2017,06,01), y: 215.00 },
        { x: new Date(2017,06,02), y: 109.00 },
        { x: new Date(2017,06,03), y: 326.00 },
        { x: new Date(2017,06,04), y: 724.00 },
      { x: new Date(2017,06,05), y: 624.00 },
      { x: new Date(2017,06,06), y: 571.00 },
        { x: new Date(2017,06,07), y: 601.00 },
        { x: new Date(2017,06,08), y: 364.00 },
        { x: new Date(2017,06,09), y: 514.00 },
        { x: new Date(2017,06,10), y: 765.00 },
      { x: new Date(2017,06,11), y: 909.00 },
        { x: new Date(2017,06,12), y: 944.00 },
        { x: new Date(2017,06,13), y: 1186.00 },
        { x: new Date(2017,06,14), y: 1179.00 },
        { x: new Date(2017,06,18), y: 1182.00 },
      { x: new Date(2017,06,19), y: 989.00 },
        { x: new Date(2017,06,20), y: 1009.00 }
        ]
      }
      ]
    });
chart.render();
}  

window. onload = function () {
    var chart= new CanvasJS.Chart("chartContainer", {

      animationEnabled: true, 
      zoomEnabled:true,
      legend:{
        verticalAlign: "bottom",
        horizontalAlign: "center"
      },
      axisY:{
        includeZero: false,
        prefix: "$",
      gridColor: "#DDD",
      gridThickness: 1,
      gridDashType: "dot",
      tickThickness: 1,
      interval: 250,
        maximum: 1900
      },
     axisX:{      
            valueFormatString: "DD-MM-YY",
         gridColor: "#DDD",
         gridDashType: "dot",
         tickThickness: 1,
         gridThickness: 1
      },
    toolTip: {
        borderColor: "#337ba7",
      backgroundColor: "#fbfbfb",
      borderThickness: 2,
      cornerRadius: 3,
      fontStyle: "normal",
      fontFamily: "tahoma"
      },
    data: [
      {
        type: "spline",
        markerSize: 8,
      markerColor: "#337ba7",
      markerBorderColor: "#FFF",
        markerBorderThickness: 1,
      lineColor: "#337ba7",
        toolTipContent: "{x} <strong>${y} <strong>",
        dataPoints: [
        { x: new Date(2017,06,01), y: 215.00 },
        { x: new Date(2017,06,02), y: 409.00 },
        { x: new Date(2017,06,03), y: 526.00 },
        { x: new Date(2017,06,04), y: 624.00 },
    { x: new Date(2017,06,05), y: 624.00 },
    { x: new Date(2017,06,06), y: 871.00 },
        { x: new Date(2017,06,07), y: 901.00 },
        { x: new Date(2017,06,08), y: 964.00 },
        { x: new Date(2017,06,09), y: 914.00 },
        { x: new Date(2017,06,10), y: 1065.00 },
    { x: new Date(2017,06,11), y: 1109.00 },
        { x: new Date(2017,06,12), y: 944.00 },
        { x: new Date(2017,06,13), y: 1186.00 },
        { x: new Date(2017,06,14), y: 1239.00 },
        { x: new Date(2017,06,18), y: 1382.00 },
    { x: new Date(2017,06,19), y: 1419.00 },
        { x: new Date(2017,06,20), y: 1419.00 }
        ]
      }
      ]
    });
chart.render();
}