(Find more about AJAX at http://ajaxtraining.blogspot.com )Working With JavaScript in Browsers.Ajax is actually a family of technologies that have been available for years. The means to make requests to the server using only JavaScript were built into Internet Explorer 5.5, but the possibilities of the technology were overlooked. It was only in 2005 that the techniques were rediscovered and used, notably to excellent effect in Google's» GMail web application.