function IsValidMailAddress(mail)
{
	var exp	= /^[\w-\.]+\@[\w\.-]+\.[a-z]{2,4}$/;
	return exp.test(mail);
	
}


function ConfirmMailAddress(form)
{
	if(IsValidMailAddress(form.mail.value) == false)
	{
		alert("Вы ввели неправильный e-mail адрес.");
		form.mail.focus();
		form.mail.select();
		return false;
	}

	return true;
}

function ConfirmMailAddressEn(form)
{
	if(IsValidMailAddress(form.mail.value) == false)
	{
		alert("The provided e-mail address is incorrect.");
		form.mail.focus();
		form.mail.select();
		return false;
	}

	return true;
}