Displaying banners ads is a common practice for showing advertisements on webpages to the visitors. Banners ads are normally created using standard graphic tools such as Photoshop, Painbrush Pro and other software. Banner ads can be static or animated. Animated images are animated GIF files or flash movies. Flash movies are created using Macromedia flash and the browsers must have installed flash plugin to view the movies. On the other hand, you can create some animated effect using JavaScript, like rotating static banner ads at a certain time interval.
Learn more about banner ads in JavaScript in our latest JavaScript tutorial:
http://javascript-tutor.net/index.php/lesson-28-managing-banner-ads-in-javascript/