function isEmail(email) {
	var valid_email_address = /^([a-zA-Z0-9_\.\-\+])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	return valid_email_address.test(email)
}
function isPhoneNumber(phone) {
	var valid_phone_number=/^[01]?[- .]?(\([2-9]\d{2}\)|[2-9]\d{2})[- .]?\d{3}[- .]?\d{4}$/;
	return valid_phone_number.test(phone)
}