function show(menu_item)
{
  document.getElementById("podmenu" + menu_item).style.visibility = "visible";
  document.getElementById("a-menu"+menu_item).className = "selected";
}

function hide(menu_item)
{
  document.getElementById("podmenu" + menu_item).style.visibility = "hidden";
  document.getElementById("a-menu"+menu_item).className="";
}

function ZmenLokaci() {
  adresa = location.href;
  adresa = adresa.split("&sekce");
  adr = adresa[0];
  adr += "&sekce=" + document.getElementById('sekce').value + "&nadpis_cs=" + document.getElementById('nadpis_cs').value + "&nadpis_it=" + document.getElementById('nadpis_it').value;
  location = adr;
}

function ZmenLokaci2() {
  adresa = location.href;
  adresa = adresa.split("&kod");
  adr = adresa[0];
  adr += "&kod=" + document.getElementById('kod').value;
  adr += "&nadpis_cs=" + document.getElementById('nadpis_cs').value;
  adr += "&nadpis_it=" + document.getElementById('nadpis_it').value;
  adr += "&sekce_produkty=" + document.getElementById('sekce_produkty').value;
  adr += "&podsekce_produkty=" + document.getElementById('podsekce_produkty').value;
  adr += "&znacka=" + document.getElementById('znacka').value;
  location = adr;
}