Updating text in gif files

It is common for Ajax applications to update the Ajax content multiple times without the surrounding page needing to be updated even once.

A simple example of Ajax would be a weather-forecast box in the middle of a web page.

Ajax could be used to populate the box every 5 minutes without needing to refresh the surrounding page.

The most common web server (or HTTP server) software on the Internet.

A small Java program that can be embedded in an HTML page.