function pobierz(co)
{
  if(co == 'data'){
    var url = "http://localhost/data.php";
  }
  else if(co == 'czas'){
    var url = "http://localhost/czas.php";
  }
  startGETRequest(url, onComplete, onEnd);
}

function onComplete(responseText, responseXML)
{
  var dataDiv = document.getElementById("dataDiv");
  dataDiv.innerHTML = responseText;
}

function onEnd()
{
}
