func chartValueSelected(chartView: ChartViewBase, entry: ChartDataEntry, dataSetIndex: Int, highlight: ChartHighlight) {
  let markerPosition = chartView.getMarkerPosition(entry: entry, 	highlight: highlight)

  // Adding top marker
  floatingGraphReader.valueLabel.text = "\(entry.value)"
  floatingGraphReader.dateLabel.text = "\(months[entry.xIndex])"
  floatingGraphReader.center = CGPointMake(markerPosition.x, markerView.center.y)
  floatingGraphReader.hidden = false
}