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 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 fcecasovac(par)
{
    for(i=1;i<5;i++) {
      div = "div-casovac-" + i;
      if (i != par) document.getElementById(div).style.display = "none";
    }
    div = "div-casovac-" + par;
    document.getElementById(div).style.display = "block";
    par++;
    if (par > 4) par = 1;
    casovac = window.setTimeout("fcecasovac(" + par + ");", 3600);
}

function check_rok (retezec) {
    cislo = parseInt(retezec);
    if ((cislo == retezec) && ((retezec.length) == 4)) vysledek = 0;
      else vysledek = 1;
    return vysledek;
}  


function check_email (retezec) {
    x = retezec.split("@");  
    if ((x[0]) && (x[1])) vysledek = 0;
      else vysledek = 1;
    return vysledek;
}


function Zmenvybava() {
  vybava_pom = "~" + document.getElementById('vybava_pom').value + ";";
  vybava = document.getElementById('vybava').value;
  if (vybava.indexOf(vybava_pom) >= 0) {
    vybava = vybava.replace(vybava_pom,"");
    vybava_pom = "";
    document.getElementById('vybava').value = vybava; 
  } 
  else
    document.getElementById('vybava').value += vybava_pom;

}