jQuery UI provides a comprehensive set of core interaction plugins, UI widgets and visual effects that use a jQuery-style, event-driven architecture and a focus on web standards, accessiblity, flexible styling, and user-friendly design. All plugins are tested for compatibility in IE 6.0+, Firefox 3+, Safari 3.1+, Opera 9.6+, and Google Chrome.

“jQuery UI is a widget and interaction library built on top of the jQuery and JavaScript Libraries, that we can use to build highly interactive web applications. ”

This is very simple to write our own plug-in. Following is the syntax to create a method:
The guideline recommended by the jQuery team is as follows:

• Any methods or functions you attach must have a semicolon (;) at the end.

jQuery provides an interface for doing different kinds of excelent effects. jQuery methods are very useful to apply effects with minimum requirements.

AJAX is an acronym standing for Asynchronous JavaScript and XML and this technology help us to load data from the server without a browser page refresh.

jQuery Events

Events in JavaScript (and jQuery) occur when something happens to an element in the page. When an event occurs, it is said to have fired. Common events include: