Ajax isn't complicated at all. It's basically HTTP requests via javascript. The request returns an XHR object (http://en.wikipedia.org/wiki/XMLHttpRequest http:

Ajax isn't complicated at all. It's basically HTTP requests via javascript. The request returns an XHR object (http://en.wikipedia.org/wiki/XMLHttpRequest http://en.wikipedia.org/wiki/XMLHttpRequest). Now along with this feature comes some differences from regular HTTP, but you can read those up in an article. Just remember the concept.