// JavaScript Document
function processRequest(where)
{
  if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {    
      var elem = document.getElementById(where);
      elem.innerHTML = '';
      elem.innerHTML += httpRequest.responseText;
    }
    else
    {
        alert("Chyba pri nacitani stanky "+ httpRequest.status +":"+ httpRequest.statusText);
    }
  }
}

function zmenObsah(what,where)
{
  //var elem = document.getElementById(where);
  //elem.innerHTML = '<p> Načítá se... </p>';
  
  // z ceho nacitat obsah
  url = what;      
  
  if (window.ActiveXObject)
  {
    httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
  }
  else
  {
    httpRequest = new XMLHttpRequest();
  }
        
  httpRequest.open("GET", url, true);
  httpRequest.onreadystatechange= function () {processRequest(where); } ;
  httpRequest.send(null);        
}