function resetta()
{
document.form_club.email_news.value="";
document.form_club.email_news.style.color = "#000000";
}



function controlloemail() 
{





EmailAddr = document.form_club.email_news.value;
   Filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
   if (!Filtro.test(EmailAddr))
      
      {
      alert("Controlla l'indirizzo e-mail inserito");
      document.form_club.email_news.focus();
      return false;
      }
	
}