function zobraz_foto(query_string,sirka,vyska) {
  okno_fotka = window.open("nabidka_foto.php?" + query_string + "&part=foto","okno_fotografie","width=" + (sirka+100) + ",height=" + (vyska+150) + ",menubar=no,directories=no,toolbar=no,location=no,status=no,scrollbars=yes,resizable=no");
  okno_fotka.focus();
}


function zobraz_okno(query_string) {
  okno_f = window.open("mail_formular.php?" + query_string,"okno_form","width=450,height=280,menubar=no,directories=no,toolbar=no,location=no,status=no,scrollbars=no,resizable=no");
  okno_f.focus();
}