});

  groups.add({
    id: 1,
    content: names[1],
    className: 'custom-style2',
    options: {
      style:'bar',
      drawPoints: {style: 'circle',
        size: 10
      }
    }});

  groups.add({
    id: 2,
    content: names[2],
    options: {
      yAxisOrientation: 'right', // right, left
      drawPoints: false
    }
  });

  groups.add({
    id: 3,
    content: names[3],
    className: 'custom-style3',
    options: {
      yAxisOrientation: 'right', // right, left
      drawPoints: {
        