function checkMailing(arrayCheck){
	var email_reg_exp 	= /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
	if (document.mailing.username.value == ""){
		alert(arrayCheck["nome"]);
		document.mailing.username.focus();
	}
	else if (document.mailing.username.value != "" && !email_reg_exp.test(document.mailing.username.value)){
		alert(arrayCheck["email1"]);
		document.mailing.username.value = '';
		document.mailing.username.focus();
	}
	else{
		document.mailing.action = 'modules/Mailing/subscribe.php';
		document.mailing.submit();
	}
}