отправка формы ajax email send

common.js

$('#Popup-Form').submit(function() {		
		if (testPhone('#Phone')) {
			$.ajax({
				type: "POST",
				url: "mail.php",
				data: $(this).serialize()
			}).done(function() {
				$(this).find("input").val('');				
				$('#Popup-Form').trigger("reset");
				document.location.href = 'thankyou.html';
			});
		} else {
			document.getElementById('Phone').style.border = '1px solid red';
			document.getElementById('Phone').style.color = 'red';
		}
		return false;
	});

function testPhone(phoneName) {
	var re = /^[\d\(\)\+ -]+$/;

	return re.test($(phoneName).val());
}