For correctly displaying the degree symbol ('\xB0'), the UTF-8 encoding must be used.
For more details see https://www.w3.org/International/questions/qa-html-encoding-declarations.en
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
The following references must be added to the html page:
<link rel="stylesheet" type="text/css" href="draw/css/jquery.jqChart.css" />
<link rel="stylesheet" type="text/css" href="draw/css/jquery.jqRangeSlider.css" />
<link rel="stylesheet" type="text/css" href="draw/themes/smoothness/jquery-ui-1.8.21.css"/>
<link rel="stylesheet" type="text/css" media="screen"
href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.21/themes/smoothness/jquery-ui.css" />
<!--<link rel="stylesheet" type="text/css" href="draw/themes/le-frog/jquery-ui-1.8.20.css" />-->
<script src="draw/js/jquery-1.11.1.min.js" type="text/javascript"></script>
<script src="draw/js/jquery.jqChart.min.js" type="text/javascript"></script>
<script src="draw/js/jquery.jqRangeSlider.min.js" type="text/javascript"></script>
<script src="draw/js/jquery-ui.min.js" type="text/javascript"></script>
