+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
            return re.test(email);
        }

        var getJSON = function(uri, cb) {
            var xhr = new XMLHttpRequest();
            xhr.open('GET', uri, true);
            xhr.setRequestHeader('Content-Type', 'application/json;charset=UTF-8');
            xhr.send();
            xhr.onreadystatechange = function() {
                if (xhr.readyState === 4) {
                    cb(xhr.status, JSON.