var ajaxQueue = $({});

$.ajaxQueue = function(ajaxOpts) {
  var oldComplete = ajaxOpts.complete;

  ajaxQueue.queue(function(next) {
    ajaxOpts.complete = function() {
      if (oldComplete) {
        oldComplete.apply(this, arguments);
      }
      next();
    };

    $.ajax(ajaxOpts);
  });
};