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

function smaz_podmenu(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_cz=" + document.getElementById('nadpis_cz').value + "&nadpis_en=" + document.getElementById('nadpis_en').value;
  location = adr;
}

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

function ZmenLokaci2() {
  adresa = location.href;

//  adresa = adresa.split("&kod");
  adresa = adresa.split("&nadpis_cz");
  
  adr = adresa[0];
//  adr += "&kod=" + document.getElementById('kod').value;
  adr += "&nadpis_cz=" + document.getElementById('nadpis_cz').value;
  adr += "&nadpis_en=" + document.getElementById('nadpis_en').value;
  adr += "&sekce_produkty=" + document.getElementById('sekce_produkty').value;
  adr += "&podsekce_produkty=" + document.getElementById('podsekce_produkty').value;
//  adr += "&rozmery=" + document.getElementById('rozmery').value;
  location = adr;
}

function aktualizujOdkazy() {
  if(!document.getElementsByTagName) return false;
  var links = document.getElementsByTagName("a");
  for (var i=0; i < links.length; i++) {
    if(links[i].className.match("popup")) {
      links[i].onclick = function () {
        return !window.open(this.href);
      }
    }
  }
}
window.onload=aktualizujOdkazy;

function ZmenZalozku(i) {
  for (j=1; j<=5; j++) {
    if (j == i) {
      document.getElementById("div-zalozka1"+j).className = "toleft";
      document.getElementById("div-zalozka2"+j).className = "toleft hidden";
      document.getElementById("div-obsah"+j).className = "div-obsah";
    }
    else {
      document.getElementById("div-zalozka1"+j).className = "toleft hidden";
      document.getElementById("div-zalozka2"+j).className = "toleft";
      document.getElementById("div-obsah"+j).className = "div-obsah hidden";
    }
  }
}

function addOblibeneFirefox(nazev,url) { 
  if ((typeof window.sidebar == "object") && (typeof window.sidebar.addPanel == "function")) 
  { 
     window.sidebar.addPanel (nazev, url,""); 
  } 
} 

function otoc_kal(smer) {
    if (smer == 1) {
      aktualni = parseInt(document.getElementById("mesic_pom2").value);
      if (aktualni > 0) {
        mes2 = aktualni - 1;
        document.getElementById("mesic_pom2").value = mes2;
        for (k = 0; k <= 11; k++) {
          if (k == mes2) document.getElementById('divkal' + k).style.display = 'block';
          else document.getElementById('divkal' + k).style.display = 'none';
        }
      }
    }
    if (smer == 2) {
      aktualni = parseInt(document.getElementById("mesic_pom2").value);
      mes2 = aktualni + 1;
      if (aktualni < 11) {
        document.getElementById("mesic_pom2").value = mes2;
        for (k = 0; k <= 11; k++) {
          if (k == mes2) document.getElementById('divkal' + k).style.display = 'block';
          else document.getElementById('divkal' + k).style.display = 'none';
        }
      }
    }
}