ajax.js

asyncAjax(url){
  var def = deferred();
  var ajax = new XMLHttpRequest();
  ajax.open("GET", url);
  ajax.onreadystatechange = function() {
    if (request.readyState === 4 && request.status === 200) {
			def.resolve(JSON.parse(request.responseText));
		}
	};
  request.send();  
  return def.promise;
}

syncAjax(url){
  var ajax = new XMLHttpRequest();
  ajax.open("GET", url, false);
  request.send();
  JSON.parse(request.responseText);
}

dh