function getHTML(serverPage, objID) {
  var obj = document.getElementById(objID);
  obj.innerHTML = '<p>CompTracker updating...</p>';
  ajax.open("GET", serverPage);
  ajax.onreadystatechange = function() {
    if (ajax.readyState == 4){//complete
    	if (ajax.status == 200) {//OK
			obj.innerHTML = ajax.responseText;
		}else{//Not OK
			alert("There was a problem retrieving data: "+ajax.statusText);
		}
    }
  }
  ajax.send(null);
}