Following is the list of useful AJAX Methods:
Methods and Description
jQuery.ajax( options )
Load a remote page using an HTTP request.
jQuery.ajaxSetup( options )
Setup global settings for AJAX requests.
jQuery.get( url, [data], [callback], [type] )
Load a remote page using an HTTP GET request.
jQuery.getJSON( url, [data], [callback] )
Load JSON data using an HTTP GET request.
jQuery.getScript( url, [callback] )
Loads and executes [...]


