var Error = {
    showMessages: function (messages) {
        for (var fieldName in messages) {
            var errors = messages[fieldName];
            var errorsHtml = '';
            for (var i = 0, n = errors.length; i < n; i++) {
                errorsHtml += errors[i] + '<br />';
            }
            $(fieldName + '-error').removeClass('x-hidden');
            $(fieldName + '-error').innerHTML = errorsHtml;
        }
    }
}