function popup(quale, largh, altezz)
{
  p_w = largh;
  p_x = (screen.width - p_w) / 2;
  p_h = altezz;
  p_y = ((screen.height - 45) - p_h) / 2;
  if (p_y < 0)
  	p_y = 0;
    
  win = window.open("popup.php?foto=" + quale, "popup","toolbar=no,left=" + p_x + ",top=" + p_y + ",width=" + p_w + ",height=" + p_h + ",directories=no,status=no,scrollbars=no,resizable=no,menubar=no,location=no,copyhistory=no");
}


function popup_n(pagina, largh, altezz)
{
  p_w = largh;
  p_x = (screen.width - p_w) / 2;
  p_h = altezz;
  p_y = (screen.height - p_h) / 2;
  if (p_y < 0) p_y = 0;
    
  win = window.open(pagina, "popup","toolbar=no,left=" + p_x + ",top=" + p_y + ",width=" + p_w + ",height=" + p_h + ",directories=no,status=no,scrollbars=no,resizable=no,menubar=no,location=no,copyhistory=no");
}

function popup_g(foto, largh, altezz)
{
  p_w = largh;
  p_x = (screen.width - p_w) / 2;
  p_h = altezz;
  p_y = ((screen.height - 45) - p_h) / 2;
  if (p_y < 0)
  	p_y = 0;
    
  win = window.open("popup_g.php?foto=" + foto, "popup","toolbar=no,left=" + p_x + ",top=" + p_y + ",width=" + p_w + ",height=" + p_h + ",directories=no,status=no,scrollbars=no,resizable=no,menubar=no,location=no,copyhistory=no");
}