function nastav_barvu (id_barvy) {
  for(i = 0; i < document.forms.length; i++) {
    document.forms[i].id_barvy.value = id_barvy;
  }
}
function kontrola_poctu (formular) {
  var pocet = parseInt(formular.pocet.value,10);
  if (isNaN(pocet)) pocet = 0;
//  formular.pocet.value = pocet;
  if (pocet > 0) {
    return true;
  }  
  else {
    alert("Zadejte počet!!!")
    return false;
  }
}

function uloz_indentifikaci(formular) {
  document.cookie = "jmeno="+formular.jmeno.value+";";
  document.cookie = "prijmeni="+formular.prijmeni.value+";";
  document.cookie = "mobil="+formular.mobil.value+";";
  document.cookie = "telefon="+formular.telefon.value+";";
  document.cookie = "email="+formular.email.value+";";
  document.cookie = "mesic="+formular.mesic.value+";";
  document.cookie = "rok="+formular.rok.value+";";
  document.cookie = "lokalita="+formular.jmeno.value+";";
}