Event.observe(window, 'load', 
    function() {
        $('feedback-form').observe('submit', 
            function(e) {
                Event.stop(e);
                var options = {
                    parameters: $H({
                        name: $('name').value, 
                        addr: $('addr').value, 
                        feedback: $('feedback-text').value,
                        ajax: true
                    }),
                    onFailure: function(transport) {
                        $('feedback-block').update('<span class="feedbackFail">Server is currently unable to process your request. Please use e-mail to write us.</span>');
                    }
                };
                new Ajax.Updater({success: $('feedback-block'), failure: null}, '/feedback.php', options);
            }
        );
    }
);