var $ = require('jquery'),
    XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest;

$.support.cors = true;
$.ajaxSettings.xhr = function() {
    return new XMLHttpRequest();
};

var najax = require('najax');
najax('http://www.google.com', function(html){ console.log(html); });
najax('http://www.google.com', { type:'POST' }, function(html){ console.log(html); });
najax({ url:'http://www.google.com', type:'POST', success: function(html){ console.log(html); });
najax({ url:'http://www.google.com', type:'POST' }).success(function(resp){}).error(function(err){});

najax.get, najax.post, najax.put, najax.delete...

if (typeof window === 'undefined') { // Running in NodeJS
  var domino=require('domino');
  var $=require('jquery')(domino.createWindow());
  var XMLHttpRequest=require('xmlhttprequest').XMLHttpRequest;
  $.support.cors=true; // cross domain
  $.ajaxSettings.xhr=function(){return new XMLHttpRequest();};
}