function openlinks(pagina,options)
{
 switch(pagina)
 {
  case 'archivio':
   parent.frames.topFrame.location.href = 'topcalendario.php'+options;
   parent.frames.mainFrame.location.href = 'archivio.php'+options;
   break;
  case 'calendario':
   parent.frames.topFrame.location.href = 'topcalendario.php'+options;
   parent.frames.mainFrame.location.href = 'calendario.php'+options;
   break;
  case 'spazio':
   parent.frames.leftFrame.location.href = 'menu.php'+options;
   parent.frames.mainFrame.location.href = 'spazio.php'+options;
   break;
  case 'materiale':
   parent.frames.leftFrame.location.href = 'menu.php'+options;
   parent.frames.mainFrame.location.href = 'materiale.php'+options;
   break;
  case 'press':
   parent.frames.leftFrame.location.href = 'menu.php'+options;
   parent.frames.mainFrame.location.href = 'press.php'+options;
   break;
  case 'registra':
   parent.frames.mainFrame.location.href = 'reg.php';
   break;
  case 'vivila':
   parent.frames.mainFrame.location.href = 'materiale_vvl.php';
 }
}