function otvori_novi(url) {
          window.open(url, "mali_prozor", "height=120,width=390,directories=no," +
                                     "location=no,menubar=no," +
                                     "resizeable=yes,status=no,toolbar=no");
          return false;
}

function popup(url) {
          window.open(url, "mali_prozor", "height=550,width=500,directories=no," +
                                     "location=no,menubar=no," +
                                     "resizeable=yes,status=no,toolbar=no");
          return false;
}