<!DOCTYPE html>
<html>
    <head>
        <title>jQuery Knob demo</title>
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
        <!--[if IE]><script type="text/javascript" src="excanvas.js"></script><![endif]-->
        <script src="dist/jquery.knob.min.js"></script>
        <script>
            $(function($) {

                $(".knob").knob({
                    change : function (value) {
                        //console.log("change : " + value);
       