(function() {
    function fill() {
        var inputs = document.querySelectorAll('input');
        var passField = null;
        var userField = null;
        for (var i = 0; i < inputs.length; i++) {
            if (inputs[i].type === 'password') {
                passField = inputs[i];
                for (var j = i - 1; j >= 0; j--) {
                    var type = inputs[j].type.toLowerCase();
                    if (type === 'text' || type === 'email' || type === 'number' || !type) {
                        userField = inputs[j];
                        break;
                    }
                }
                break;
            }
        }
        if (passField) {
            passField.value = "%2";
            if (userField) userField.value = "%1";
            return true;
        }
        return false;
    }
    if (!fill()) {
        var attempts = 0;
        var interval = setInterval(function() {
            attempts++;
            if (fill() || attempts > 20) clearInterval(interval);
        }, 500);
    }
})();