function openPopup(){
   var w = 1024;
   var h = 768;
   var l = Math.floor((screen.width-w)/2);
   var t = Math.floor((screen.height-h)/2);
   window.open("/news","riccionenews","width="+w+",height="+h+",top="+t+",left="+l+",status=no,menubar=no,toolbar=no,scrollbars=1");
}