var firstname = new LiveValidation('field6');
firstname.add(Validate.Presence);

var lastname = new LiveValidation('field7');
lastname.add(Validate.Presence);

var email = new LiveValidation('UEmail');
email.add(Validate.Presence);
email.add(Validate.Email);

var zipcode = new LiveValidation('field8');
zipcode.add(Validate.Presence);

var automaticOnSubmit = document.BSFOptin.onsubmit;
document.BSFOptin.onsubmit = function(){
	var valid = automaticOnSubmit();
	if(valid) {
		document.BSFOptin.submit();
	}
	return false;
}