function validate_email(x)
{
	var dobryEmail=/^[^@]+@([a-z0-9\-]+\.)+[a-z]{2,4}$/i;

	if (dobryEmail.test(x) == false)	return 1;
	else								return 0;
}

function postnewsletter(arg1,arg2,arg3) 
{
	if (validate_email(arg3) == 1)
	{
		alert('Niepoprawny adres e-mail');
		return;
	}
	
	advAJAX.submit
	(
		document.getElementById(arg1),
		{
			onSuccess : function(obj) 
			{
				document.getElementById(arg2).innerHTML = obj.responseText;
			}
		}
	);
	//alert(arg1+' '+arg2);
	//alert(document.getElementById('mailform'));
}