function validateNewsletter ()
{
	//var re_email = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*$/ ;
	var re_email = /^([_a-z0-9-]+(\.[_a-z0-9-]+)*)@([_a-z0-9-]+(\.[_a-z0-9-]+)*)\.([a-z]{2,6})$/i;

	t_email = re_email.test(document.fNewsletterSubscription.emailNewsletter.value);

	if (t_email) document.fNewsletterSubscription.submit();
	else {
	  alert("Error email address");
	 }
}