function validateFeedback(formId) {
    return new FeedbackFormValidation(formId).isValid;
}

var FeedbackFormValidation = Class.create({
    initialize: function(formId) {
        this.form = $(formId);
        this.errorMessages = $A();
        this.isValid = true;
        this.validateForm();
//        this.displayErrorMessages();
    },

    validateForm: function() {
        this.validateFirstName();
        this.validateLastName();
        this.validateFeedbackType();
        this.validateMessageTitle();
        this.validateMessageText();
        this.validateEmail();
    },

    validateFirstName: function() {
        var field = this.form.select('input#firstName').reduce();
        if (this.fieldIsNull(field)) {
            this.setErrorLabel(field);
            this.setValidity(false);
//            this.errorMessages.push('Please enter your First Name');
            this.displayErrorMessage(field, 'Please enter your First Name');
        }
    },

    validateLastName: function() {
        var field = this.form.select('input#lastName').reduce();
        if (this.fieldIsNull(field)) {
            this.setErrorLabel(field);
            this.setValidity(false);
//            this.errorMessages.push('Please enter your Last Name');
            this.displayErrorMessage(field, 'Please enter your Last Name');
        }
    },

    validateFeedbackType: function() {
        var field = this.form.select('select#feedbackType').reduce();
        if (field.value == 'Select One') {
            this.setErrorLabel(field);
            this.setValidity(false);
//            this.errorMessages.push('Please enter what type of Feedback you are providing');
            this.displayErrorMessage(field, 'Please enter what type of Feedback you are providing');
        }
    },

    validateMessageTitle: function() {
        var field = this.form.select('input#msgTitle').reduce();
        if (this.fieldIsNull(field)) {
            this.setErrorLabel(field);
            this.setValidity(false);
//            this.errorMessages.push('Please enter a Message Title');
            this.displayErrorMessage(field, 'Please enter a Message Title');
        }
    },

    validateMessageText: function() {
        var field = this.form.select('textarea#msgText').reduce();
        if (this.fieldIsNull(field)) {
            this.setErrorLabel(field);
            this.setValidity(false);
//            this.errorMessages.push('Please enter a Message');
            this.displayErrorMessage(field, 'Please enter a Message');
        }
    },

    validateEmail:function() {
        var field = this.form.select('input#emailAddr').reduce();
        if (this.fieldIsNull(field) || field.value == "youremail@address.com") {
            this.setErrorLabel(field);
            this.setValidity(false);
//            this.errorMessages.push('Please enter an Email Address');
            this.displayErrorMessage(field, 'Please enter an Email Address');
        } else {
            if(!this.checkEmailAddress(field.value)) {
                this.setErrorLabel(field);
                this.setValidity(false);
//                this.errorMessages.push('Please enter a vaild Email Address');
                this.displayErrorMessage(field, 'Please enter a vaild Email Address');
            }
        }
    },

    fieldIsNull: function(field) {
        if (field.value == null || field.value == "") {
            return true
        }
    },

    setErrorLabel: function(field) {
        this.form.select('label[for='+ field.id +']').reduce().addClassName('errorLabel');
    },

    displayErrorMessage: function(field, message) {
        var error = new Element('p', {'className': 'error-message'}).update(message);
        this.form.select('label[for='+ field.id +']').reduce().up().insert(error);
    },

    displayErrorMessages: function() {
        var messageContainer = this.form.select('ul#errorMessages').reduce();
        messageContainer.update();
        this.errorMessages.each(function(message) {
            var error = new Element('li', {'className': 'error-message'}).update(message);
            messageContainer.insert(error);
        })
        messageContainer.show();
        
    },

    checkEmailAddress: function (str) {
        var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
        if (filter.test(str)) {
            return true
        } else {
        }
    },

    setValidity: function(state) {
        if (!state && this.isValid) {
            this.isValid = false;
        }
    }
})