Ajax Technologies

It is used in combination with other technologies, we've discussed earlier

DOM: It represents the structure of XML and HTML documents and it is used for dynamic display and interaction with data.

XML or JSON: For carrying data to and from server. JSON (Javascript Object Notation) is like XML but short and faster than XML.

XMLHttpRequest: JavaScript object that performs asynchronous interaction with the server.

JavaScript: For asynchronous communication between client and server.

• Independently, it is used mainly for client-side validation.
• Loosely typed scripting language..
• JavaScript function is called when an event occurs in a page.

HTML/XHTML and CSS

It is used for displaying content, style and mainly used for presentation.