function samostatne_okno(soubor){
                okno_fotek = window.open(soubor,"okno_fotek","left=50,top=0,width=650,height=500,menubar=yes,location=no,toolbar=no,directories=no,status=yes,scrollbars=yes,resizeable=yes,copyhistory=yes");
                vyska_okna = screen.height - 20;
                okno_fotek.resizeTo(650,vyska_okna);
        }