function in1() {
  var ajax = (window.XMLHttpRequest ? new XMLHttpRequest() : (window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : false));
  if(!ajax){
    alert("Tak tady to nepoběží!");
    return true;
  }
  ajax.onreadystatechange= function () {vysledek(ajax); } ;
  
  var jazyk   = document.getElementById("jazyk").value;
  var rozsah  = document.getElementById("rozsah").value;
  var uroven  = document.getElementById("uroven").value;
  var lektor  = document.getElementById("lektor").value;
  var typ     = document.getElementById("typ").value;
  var misto   = document.getElementById("misto").value;
  var cas     = document.getElementById("cas").value;
  
  var jazyk_txt = document.getElementById("jazyk_txt").value;
  var rozsah_txt = document.getElementById("rozsah_txt").value;
  var misto_txt  = document.getElementById("misto_txt").value;
  
  ajax.open("POST", "js/individualni.php", true);
  ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  ajax.send("rozsah="+rozsah+"&uroven="+uroven+"&lektor="+lektor+"&typ="+typ+"&misto="+misto+"&cas="+cas+"&misto_txt="+misto_txt+"&rozsah_txt="+rozsah_txt+"&jazyk="+jazyk+"&jazyk_txt="+jazyk_txt);
  
  return false
}


function vysledek(ajax){
  var txt;
  if (ajax.readyState == 4){ //bylo odpovězeno
    if (ajax.status == 200 || ajax.status==0){
      txt=ajax.responseText;
      document.getElementById('kurzy-indivdual').innerHTML = txt;
    }
      else alert("Chyba: "+ ajax.status +":"+ ajax.statusText);
  }
}