$linechart->yAxis->title->rotation = 0;
$linechart->yAxis->title->x = 60;
$linechart->yAxis->title->y = -10;
$linechart->yAxis->plotLines = array(array('color' => '#808080', 'width' => 1, 'value' => 0));
$linechart->addSeries($series1);
$linechart->addSeries($series2);
$linechart->addSeries($series3);
$linechart->enableAutoStep();
?>
<head>
<!-- jQuery 1.6.1 -->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<!-- HighRoller: set the location of Highcharts library -->
<?php
echo HighRoller::setHighChartsLocation("_assets/highcharts/highcharts.js");
echo HighRoller::setHighChartsThemeLocation("_assets/highcharts/themes/highroller.js");
?>
</head>
<body>
<!-- HighRoller: linechart div container -->
<div id="linechart"></div>
<script type="text/javascript">
// example of how to define a tooltip formatter in a highcharts chart using using highroller
var myChartOptions = <?php
echo $linechart->getChartOptionsObject();
?>
// define your own formatter for tooltip
