jqPlot Line Chart

HTML

<link rel="stylesheet" href="http://www.prioritymarketers.com/jqplot/src/jquery.jqplot.css">
<script src="http://www.prioritymarketers.com/jqplot/src/jquery.jqplot.js"></script>
<script src="     http://www.prioritymarketers.com/jqplot/src/plugins/jqplot.barRenderer.js"></script>
<script src="     http://www.prioritymarketers.com/jqplot/src/plugins/jqplot.categoryAxisRenderer.js"></script>
<script src="     http://www.prioritymarketers.com/jqplot/src/plugins/jqplot.pointLabels.js"></script>
<script src="https://bitbucket.org/cleonello/jqplot/raw/b5a7796a9ebf/src/plugins/jqplot.dateAxisRenderer.js"></script>
<script src="https://raw.github.com/harbulot/jqplot/canvas_overlay_rectangle/plugins/jqplot.canvasOverlay.js"></script>
<div id="container">
<div id="chart"></div>
</div>

CSS

#container {
    height:80px;
    width:400px;
    padding-left: 10px;
    padding-right: 10px;
    background-color:#bbbbbb; color: #000000;
    /*background-color:#666666; color: #FFFFFF;*/
    
}
#chart {
    height:100%;
    width:100%;
    margin: 10px,10px,10px,10px;
}
/*modify the jqplot css to force style inheritance*/
.jqplot-target 
{
    color: inherit;
}

JavaScript

$(document).ready(function() {
    var chLines = [[
        [new Date('01/01/2004 00:00:00'), 0],
        [new Date('01/01/2005 00:00:00'), 0],
        [new Date('12/31/2006 00:00:00'), 0],
        [new Date('01/01/2007 00:00:00'), 0],
        [new Date('03/31/2008 00:00:00'), 0],
        [new Date('01/01/2009 00:00:00'), 0],
        [new Date('06/30/2010 00:00:00'), 0],
        [new Date('01/01/2011 00:00:00'), 0],
        [new Date('01/01/2012 00:00:00'), 0],
        [new Date('01/01/2013 00:00:00'), 0]
        ]];

    $.jqplot('chart', chLines, {
        grid: {
            background: "rgba(0,0,0,0.0)",
            drawBorder: false,
            shadow: false
        }, 
        axesDefaults: {
            rendererOptions: {
            drawBaseline: false
            }
        },
        seriesColors: ['rgba(0, 0, 0, 0.00)'],
        series: [{
            showMarker: false}],

        tickOptions: {
            formatString: '%d'
        },
        canvasOverlay: {
            show: true,
            objects: [
                {horizontalLine: {
                    name: '1',
                    y: .2,
                    lineWidth: 4,
                    color: "#9966FF",
                    shadow: false,
                    lineCap: 'square',
                    xmin: new Date('01/01/2004 00:00:00'),
                    xmax: new Date('01/01/2014 00:00:00')
                }},
                {horizontalLine: {
                    name: '2',
                    y: .6,
                    lineWidth: 4,
                    color: "#6699FF",
                    shadow: false,
                    lineCap: 'square',
                    xmin: new Date('04/20/2006 00:00:00'),
                    xmax: new Date('06/30/2010 00:00:00')
                    
                }}
            ]
        },
        axes: {
            xaxis: {
                renderer: $.jqplot.DateAxisRenderer,
                rendererOptions: {
                    tickRenderer:...