var request;
var dest;

function processStateChange(){
  if (request.readyState == 4){
    contentDiv = document.getElementById(dest);
    if (request.status == 200){
response = request.responseText;
contentDiv.innerHTML = response;
    } else {
contentDiv.innerHTML = "Error: Status "+request.status;
    }
  }
}

function loadHTML(URL, destination){
  dest = destination;
  if (window.XMLHttpRequest){
    request = new XMLHttpRequest();
    request.onreadystatechange = processStateChange;
    request.open("GET", URL, true);
    request.send(null);
  } else if (window.ActiveXObject) {
    request = new ActiveXObject("Microsoft.XMLHTTP");
    if (request) {
request.onreadystatechange = processStateChange;
request.open("GET", URL, true);
request.send();
    }
  }
}