function  setOkresy(){
 
	var select = document.getElementById('kraje');  
  var kraj = select.options[select.selectedIndex].value;

    var url='../inside/okresy.php?import_kraj='+kraj+'&okres=0' ;
    var semka2 = document.getElementById("semka2");      
    prepareRequest(url,semka2);
} 


function  setMesta(){
 
	var select = document.getElementById('kraje');
  var kraj = select.options[select.selectedIndex].value;
	var select2 = document.getElementById('okresy');
  var okres = select2.options[select2.selectedIndex].value;
          
        var url='../inside/okresy.php?import_kraj='+kraj+'&import_okres='+okres ;
        var semka2 = document.getElementById("semka2");      
 
        prepareRequest(url,semka2);
} 

function prepareRequest(url,semka){  
      
        if (window.ActiveXObject)
        {
          httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }
        else
        {
          httpRequest = new XMLHttpRequest();
        }
        httpRequest.open("GET", url, true);
        httpRequest.onreadystatechange= function () {processRequest(semka); } ;
        httpRequest.send(null);
}        	
	
function processRequest(semka)
{
 
  if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {   
      semka.innerHTML = httpRequest.responseText;
    }
    else
    {
        alert("Chyba pri nacitani stanky"+ httpRequest.status +":"+ httpRequest.statusText);
    }
  }
}