amcharts Line with custom bullets

HTML

<script src="http://www.amcharts.com/lib/amcharts.js" type="text/javascript"></script>
<div id="chartdiv" style="width: 100%; height: 362px;"></div>

JavaScript

var lineChartData = [{
    date: new Date(2009, 10, 2),
    value: 5},
{
    date: new Date(2009, 10, 3),
    value: 15},
{
    date: new Date(2009, 10, 4),
    value: 13},
{
    date: new Date(2009, 10, 5),
    value: 17},
{
    date: new Date(2009, 10, 6),
    value: 15},
{
    date: new Date(2009, 10, 9),
    value: 19},
{
    date: new Date(2009, 10, 10),
    value: 21},
{
    date: new Date(2009, 10, 11),
    value: 20},
{
    date: new Date(2009, 10, 12),
    value: 20},
{
    date: new Date(2009, 10, 13),
    value: 19},
{
    date: new Date(2009, 10, 16),
    value: 25},
{
    date: new Date(2009, 10, 17),
    value: 24},
{
    date: new Date(2009, 10, 18),
    value: 26},
{
    date: new Date(2009, 10, 19),
    value: 27},
{
    date: new Date(2009, 10, 20),
    value: 25},
{
    date: new Date(2009, 10, 23),
    value: 29},
{
    date: new Date(2009, 10, 24),
    value: 28},
{
    date: new Date(2009, 10, 25),
    value: 30},
{
    date: new Date(2009, 10, 26),
    value: 72,
    customBullet: "http://www.amcharts.com/lib/images/redstar.png" // note, one line has a custom bullet defined
    },
{
    date: new Date(2009, 10, 27),
    value: 43},
{
    date: new Date(2009, 10, 30),
    value: 31},
{
    date: new Date(2009, 11, 1),
    value: 30},
{
    date: new Date(2009, 11, 2),
    value: 29},
{
    date: new Date(2009, 11, 3),
    value: 27},
{
    date: new Date(2009, 11, 4),
    value: 26}];

AmCharts.ready(function() {
    var chart = new AmCharts.AmSerialChart();
    chart.dataProvider = lineChartData;
    chart.pathToImages = "http://www.amcharts.com/lib/images/";
    chart.categoryField = "date";

    // sometimes we need to set margins manually
    // autoMargins should be set to false in order chart to use custom margin values
    
    chart.marginLeft = 0;
    chart.marginBottom = 22;
    chart.marginTop = 0;

    // AXES
    // category                
    var categoryAxis = chart.categoryAxis;
    categoryAxis.parseDates = true; // as our...