Syntax error

Syntax error

What is wrong with the syntax from the code below? I get SyntaxError: missing ; before statement:


<!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" />
<title>Untitled Document</title>

<script src="http://code.jquery.com/jquery-1.4.2.min.js"></script>

<script>
    $(document).ready(function(){
        $.getJSON("http://www.wikiwebwidget.com/api2/api.php?method=getAllUsers&jsoncallback=?",
            function(data) {
                console.log(data);
            }
        );
    });
</script>
</head>

<body>
</body>
</html>