This AJAXEvent ajaxStart registers a handler to be executed when the first Ajax request begins.
Whenever an Ajax request is about to be sent, jQuery checks whether there are any other outstanding Ajax requests. If none are in progress, jQuery triggers the ajaxStart event. Any and all handlers that have been registered with the .ajaxStart() method are executed at this time.
To observe this method in action, do the following Continue reading “jQuery ajaxStart”