function ValidateCard(currentValidity, owner, number, cvn) {
    return currentValidity 
		&& owner.IsValid()
		&& number.IsValid()
		&& cvn.IsValid()
		&& ValidateCardExpirationDate;
}

function ValidateAttendee(
    currentValidity,
    firstName,
    lastName,
    companyName,
    email,
    phone,
    addy1,
    addy2,
    city,
    zip) {

    return currentValidity
		&& firstName.IsValid()
		&& lastName.IsValid()
		&& companyName.IsValid()
		&& email.IsValid()
		&& phone.IsValid()
		&& addy1.IsValid()
		&& addy2.IsValid()
		&& city.IsValid()
		&& zip.IsValid();
}