var xmlHttp;

function vytvorXMLHttpRequest(){
  if(window.ActiveXObject){
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  }
  else if (window.XMLHttpRequest){
    xmlHttp = new XMLHttpRequest();
  }
}

function anketa(answer){
  vytvorXMLHttpRequest();
  xmlHttp.onreadystatechange = function(){
      if(xmlHttp.readyState == 4){
        if(xmlHttp.status == 200){
            document.getElementById("anketa").innerHTML = xmlHttp.responseText;
        }
      }
  };

  xmlHttp.open("GET", "http://www.bek.sk/js/anketa.php?answer=" + answer, true);
  xmlHttp.send(null);
}