You must have seen a magical diary in one of the Harry Potters movies. Harry Potter finds this diary with nothing written in it. But when he starts writting in it, the diary erases what he just wrote and then just writes a reply back on the same page. Well, there are few clever people around who have tried to bring this diary in life with the help of Ajax. Click on this link to experience the magic, try typing "Hello" in the diary,http://pandorabots.com/pandora/talk?botid=c96f911b3e35f9e1
Now, you must be wondering what Ajax is. Well, Ajax (Asynchronous JavaScript and XML) is a group of inter-related web development techniques used for creating interactive web applications. A primary characteristic is the increased responsiveness and interactivity of web pages achieved by exchanging small amounts of data with the server "behind the scenes" so that entire web pages do not have to be reloaded each time there is a need to fetch data from the server. This is intended to increase the web page's interactivity, speed, functionality and usability.
To know more about Ajax visit the link below,
http://en.wikipedia.org/wiki/Ajax_(programming)
