I-Plan Supply: Fix narrow Columns

behindColumns (http://docs.amcharts.com/3/javascriptcharts/AmGraph#behindColumns) only seems to affect lines that are after columns, lines before are always below.

by Anton

HTML

<script src="https://www.amcharts.com/lib/3/amcharts.js"></script>
<script src="https://www.amcharts.com/lib/3/serial.js"></script>
<script src="https://www.amcharts.com/lib/3/themes/light.js"></script>
<div id="chartdiv"></div>

CSS

#chartdiv {
	width		: 100%;
	height		: 400px;
	font-size	: 11px;
}

JavaScript

var chart = AmCharts.makeChart("chartdiv", {
    "type": "serial",
    "theme": "light",
    "dataDateFormat": "YYYY-MM-DD",
    "valueAxes": [
      {
        "id": "default_axis",
        "titleColor": "#606060",
        "titleBold": false,
        "startOnAxis": false,
        "axisColor": "#909090",
        "gridAlpha": 0.1,
        "axisAlpha": 1.0
      }
    ],
    "categoryField": "DATEFROM",
    "categoryAxis": {
      "parseDates": true,
      "equalSpacing": true,
      "axisAlpha": 0,
      "gridAlpha": 0,
      "tickLength": 0
    },
    "chartCursor": {
      "enabled": true,
      "cursorPosition": "mouse",
      "fullWidth": false,
      "cursorAlpha": 0.0,
      "categoryBalloonEnabled": true,
      "categoryBalloonDateFormat": "",
      "valueBalloonsEnabled": false
    },
    "legend": {
      "position": "right",
      "valueText": "",
      "periodValueText": "",
      "textClickEnabled": true,
      "marginTop": 0,
      "verticalGap": 10
    },
    "graphs": [
      {
        "type": "column",
        "title": "Constrained Demand",
        "valueField": "CONSTRAINEDDEMAND",
        "fillAlphas": 1,
        "stackable": true,
        "balloonText": "[[title]] : [[value]]"
      },
      {
        "type": "line",
        "title": "Remaining Forecast",
        "valueField": "REMAININGFORECAST",
        "bullet": "round",
        "balloonText": "[[title]] : [[value]]"
      },
      {
        "type": "line",
        "title": "Forecast",
        "valueField": "FORECAST",
        "bullet": "round",
        "balloonText": "[[title]] : [[value]]"
      },
      {
        "type": "column",
        "fillAlphas": 1,
        "title": "Unallocated Forecast",
        "valueField": "UNALLOCATEDFORECAST",
        "balloonText": "[[title]] : [[value]]"
      },
      {
        "type": "line",
        "bullet": "round",
        "title": "Firm orders",
        "valueField": "FIRMORDERS",
        "balloonText": "[[title]] : [[value]]"
      }
    ],
   ...