var indirizzoEmail;
function checkEmailAddress(field) {

     var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\..{2,2}))$)\b/gi);
     
     if (goodEmail){
        indirizzoEmail = true;
     } 
     else {
        alert('Inserire un indirizzo email valido');
        field.focus();
        field.select();
        indirizzoEmail = false;
        }
  	return indirizzoEmail;
}


function visualizzaNews(idNews) {
	window.open('showNews.php?idNews=' + idNews,'news','width=500,height=400,resizable=1');
}