jQuery is a well-known and famous lightweight, fast and concise JavaScript Library. jQuery simplifies various task for us like HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. jQuery is great library to reduce our JavaScript coding so they quote "jQuery: The Write Less, Do More". jQuery was released on January 2006 at BarCamp NYC by John Resig under the MIT License and the GNU General Public License, jQuery is free and open source software. jQuery is very versatile and easy to use, provides great flexibility in designing and development. Considering such great features of jQuery both Microsoft (jQuery will be distributed with Visual Studio) and Nokia (jQuery to develop applications for their WebKit-based Web Run-Time) are taking the major step of adopting jQuery as part of their official application development platform.