JavaScript Charts: Floating bar chart

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        <script type="text/javascript">
            var chart;

            var chartData = [{
                name: "John",
                startTime: 8,
                endTime: 11,
                color: "#FF0F00"
            }, {
                name: "Joe",
                startTime: 10,
                endTime: 13,
                color: "#FF9E01"
            }, {
                name: "Susan",
                startTime: 11,
                endTime: 18,
                color: "#F8FF01"
            }, {
                name: "Eaton",
                startTime: 15,
                endTime: 19,
                color: "#04D215"
            }];


            AmCharts.ready(function () {
                // SERIAL CHART
                chart = new AmCharts.AmSerialChart();
                chart.dataProvider = chartData;
                chart.categoryField = "name";
                chart.rotate = true;
                chart.columnWidth = 0.9;
                chart.startDuration = 1;
                chart.marginRight = 30;

                // AXES
                // Category
                var categoryAxis = chart.categoryAxis;
                categoryAxis.gridAlpha = 0.1;
                categoryAxis.axisAlpha = 0;
                categoryAxis.gridPosition = "start";

                // Value
                var valueAxis = new AmCharts.ValueAxis();
                valueAxis.gridAlpha = 0.1;
                valueAxis.axisAlpha = 0;
                valueAxis.unit = ":00";
                chart.addValueAxis(valueAxis);

                // GRAPH                          
                var graph = new AmCharts.AmGraph();
                graph.valueField = "endTime";
                graph.openField = "startTime";
                graph.type = "column";
                graph.lineAlpha = 0;
                graph.colorField = "color";
                graph.fillAlphas = 0.8;
                chart.addGraph(graph);

                // WRITE                  
                chart.write("chartdiv");
            });
        </script>
        <div id="chartdiv" style="width: 100%; height: 400px;"></div>