AJAX stands for Asynchronous JavaScript and XML . AJAX is a new technique for creating better, faster, and more interactive web applications with the help of XML, HTML, CSS, and Java Script Before you start ajax you will be much and more knowledge about javascript,its important for us.ajax is not difficult it can be easily implementation. Following advantage of ajax call : 1-Speed, 2-Interaction, 3-XMLHttpRequest, 4-Asynchronous call, 5-Form Validation, 6-Bandwidth Usage, What is XMLHttpRequest(XHR) : The XMLHttpRequest object is used to exchange data with a server behind the scenes, Its part of web pages,without reloading whole page. It has been available ever since Internet Explorer 5.5 was released in July 2000. XMLHttpRequest (XHR) is an API that can be used by JavaScript, JScript, VBScript, and other web browser scripting languages to transfer and manipulate XML data to and from a webserver using HTTP, establishing an independent connection ch...