function apriPopupFoto(nome, titolo, lar, alt, feat){
        var wdt = screen.width;
        var hgt = screen.height;
        var x = Math.round( (wdt / 2) - (lar / 2) - (100) );
        var y = Math.round( (hgt / 2) - (alt / 2) + (50) );
        window.open(nome, titolo, 'width=' + lar + ',height=' + alt + ',left=' + x + ',screenX=' + x + ',top=' + y + ',screenY=' + y + ',' + feat);
}