function prepocitat(pocet_polozek) {
  retezec = "";
  for (i=0;i<pocet_polozek;i++) retezec += document.getElementById("inputks" + i).value + ",";
  document.getElementById("prepocet_pom").value = retezec;
}


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 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 ZmenLokaci_konfigurator() {
  adresa = location.href;
  adresa = adresa.split("?program");
  adr = adresa[0];
  adr += "?program=" + document.getElementById('program').value + "&delka=" + document.getElementById('delka').value + "&sirka=" + document.getElementById('sirka').value;
  location = adr;
}

function ZmenKryti_vyber(x) {
  if (x == 1) {
    document.getElementById('div-deska1').style.display = 'block';
    document.getElementById('div-deska2').style.display = 'none';
    document.getElementById('div-tvarnice').style.display = 'none';
    document.getElementById('div-kryti').style.display = 'block';
  }
  if (x == 2) {
    document.getElementById('div-deska1').style.display = 'none';
    document.getElementById('div-deska2').style.display = 'block';
    document.getElementById('div-tvarnice').style.display = 'none';
    document.getElementById('div-kryti').style.display = 'none';
  }
  if (x == 3) {
    document.getElementById('div-deska1').style.display = 'none';
    document.getElementById('div-deska2').style.display = 'none';
    document.getElementById('div-tvarnice').style.display = 'block';
    document.getElementById('div-kryti').style.display = 'block';
  }    

}