Fiat 500 Speedometer

Fixed with the latest Highcharts. Still have @fontface problem with Firefox

HTML

<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/highcharts-more.js"></script>
<div id="container" style="min-width: 400px; height: 400px; margin: 0 auto"></div>
<link href='http://fonts.googleapis.com/css?family=Squada+One' rel='stylesheet' type='text/css'> 
    <style>        @font-face {           
        font-family: "digital";           
        src: url("http://joekuan.org/digital.ttf") format("truetype");       }    
    </style>

JavaScript

$(function () {
    var speedColor = '#474337';
    var rpmColor = '#BBB59C';
    var kmhArr = [ 0, 20, 40, 70, 100, 130, 160, 190, 220, 250, 280, 310, 340 ];
    var hiRef = '#A41E09';
    var dialColor = '#FA3421';
    var currentRpm = 0;
    var rpmAccel = [ 0, 0.1, 0.2, 0.3, 0.6, 0.7, 0.85, 0.9, 0.9, 1.1, 1.2, 1.3, 1.3, 1.35, 1.4, 1.46, 1.51, 1.53, 1.54, 1.55, 1.58, 1.6, 1.63, 1.67, 1.67, 1.68, 1.7, 1.6, 1.58, 1.54, 1.53, 1.52, 1.51, 1.64, 1.78, 1.83, 1.91, 2.2, 2.1, 2.24, 2.33, 2.43, 2.41, 2.4, 2.2, 2.1, 1.9, 1.8, 2.2, 2.4, 2.5, 2.7, 2.8, 2.9, 3.0, 3.3, 3.5, 3.8, 4.3, 4.4, 4.5, 4.6, 4.7, 4.96, 5.3, 5.4, 5.64, 5.7, 5.74, 5.82, 5.88,  5.91, 6.1, 6.18, 6.23, 6.3, 6.6, 6.7, 6.9, 7.1, 7.3, 7.4, 7.46, 7.5, 7.6, 7.9, 8.1, 8.2, 8.3, 8.35, 8.5, 8.6, 8.7, 8.75, 5.2, 5.0, 4.91, 4.8, 4.6, 4.6, 4.55, 4.43, 4.32, 4.2, 4.21, 4.24, 4.28, 4.3, 4.33, 4.34, 4.47, 4.53, 4.56, 4.55, 4.71, 4.74, 4.77, 4.85, 4.80, 4.9, 4.92, 4.95, 5.06, 5.12, 5.13, 5.20, 5.23, 5.25, 5.28, 5.29, 5.4, 5.41, 5.44, 5.6, 5.55, 5.58, 5.65, 5.69, 5.74, 5.79, 5.83, 5.88, 5.87, 5.93, 5.96, 5.99, 5.95, 6.2, 6.3, 6.3, 6.4, 6.8, 7.0, 7.4, 7.6, 7.8, 8.1, 8.3, 8.5, 8.7, 8.75, 8.8, 8.85, 8.90, 5.4, 5.34, 5.26, 5.21, 5.20, 5.17, 5.12, 5.08, 4.98, 4.83, 4.81, 4.77, 4.54, 4.65, 4.66, 4.44, 4.41, 4.3, 4.34, 4.28, 4.29, 4.25, 4.24, 4.22, 4.21, 4.19, 4.08, 4.03, 4.12, 4.03, 4.03, 4.05, 4.06, 4.07, 3.99, 3.96, 3.81, 3.81, 3.76, 3.7, 3.5, 3.55, 3.49, 3.41, 3.35, 3.31, 3.28, 3.21, 3.19, 3.14, 3.06, 3.01, 2.96, 2.90, 2.85, 2.81, 2.71, 2.65, 2.60, 2.54, 2.51, 2.43, 2.39, 2.33, 2.21, 2.18, 2.11, 2.07, 2.01, 1.99, 1.95, 1.84, 1.81, 1.78, 1.71, 1.65, 1.61, 1.55, 1.51, 1.44, 1.39, 1.31, 1.28, 1.21, 1.14, 1.06, 0.99, 0.98, 0.91, 0.93, 0.95, 0.91, 0.88, 0.81, 0.76, 0.71, 0.65, 0.59, 0.51, 0.44, 0.43, 0.31, 0.22, 0.20, 0.21, 0.20, 0.10, 0.9, 0.9, 0.8, 0.8, 0.7, 0.7, 0.6, 0.6, 0.5, 0.5, 0.4, 0.4, 0.3, 0.3, 0.2, 0.2, 0.1, 0.1, 0  ];
    var speedAccel = [ 0, 0, 0, 0, 0, 0, 2, 2, 3, 3, 4, 5, 6, 7.1, 8, 9.1, 10, 11, 11.5, 11.7, 12,...