//---------------------------------------------------------------------------------------------------------------------------------------
//------------ FILTR - UBYTOVÁNÍ --------------------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------------------------------------------
function stateChanged(){ 
  if(xmlHttp.readyState == 4 || xmlHttp.readyState == "complete"){ 
    var rettext = xmlHttp.responseText;

    if(rettext){
      var poletext = rettext.split("|");
      var pocet = poletext.length;

      if(pocet){
        var ide = poletext[0];
        document.getElementById(ide).innerHTML = poletext[1];
      }
    }
  }
}

 //--- funkce zavolá zadaný PHP skript se zadanými parametry ---
 function PHP(script,querystring){
   xmlHttp = GetXmlHttpObject();
   if(xmlHttp==null){
     window.alert("Váš prohlížeč bohužel nepodporuje HTTP požadavky!");
     return
   }
   var url = "/ajax/"+script;
   url = url+"?"+querystring;
   xmlHttp.onreadystatechange = stateChanged;
   xmlHttp.open("GET",url,true);
   xmlHttp.send(null);
 }

 //--- SELECT - Destinace ---
 function Lokalita(){
   var lokalita = document.getElementById('lokalita').options[document.getElementById('lokalita').selectedIndex].value;
   PHP("objednavka.php","lokalita="+lokalita);
 }