Anonymous

--------------[test.html]
<html>
<head>
 <script type="text/javascript" src="mootools.js"></script>
 <script type="text/javascript" src="x.js"></script>
</head>
<body>
<script>
var n=new abc();
n.say();
</script>
</body>
</html>

--------------[x.js]
var abc = new Class({
	say: function(){
		alert('hi');
	}
});