load.js

/* Why do this ... */

load: function(url) {
  setTimeout(function () { doload(url) }, 1);
}

doload: function (url) {
  /* synchronous XHR */
  xhr.open("GET", url, false);
  xhr.send(null);
  
  /* do something with xhr.responseText ... */
}

/* ... instead of this? */

load: function(url) {
  xhr.open("GET", url, true);
  xhr.onreadystatechange = function() {
    /* do something with xhr.responseText ... */
  }
  
  xhr.send(null);
}