index.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script src="js/features/features.js"></script>
<script src="js/detect_lang.js"></script>
<script>
	window.onload=(function (){
		document.getElementById("detect").
			onclick=(function (){
					var lang=detect_lang(document.
						getElementById("code").value);
					document.getElementById("result").
						innerHTML="The result is "+lang+".";
			});
	})
</script>
<title>detect_code_lang</title>
</head>
<body>
	<textarea cols="70" rows="20" placeholder="Input your code here." id="code">int main()
{
    return 0;
}
</textarea>
    <div><button id="detect">Detect</button></div>
    <a id="result">The result will be shown here.</a>
</body>
</html>