Animated GIF's are a special kind of GIF file (known as GIF89a)
that contain multiple images that are shown in a sequence at specific times and
locations on the screen. A looping option causes your Web browser to keep
showing the frames in the GIF file continually, and as a result, you see
animation oncreen. There are web sites which contain collections of animated
GIF's that can be used such as: http://www.webdeveloper.com/animations/
JPEG(Joint Photographic Experts Group) JPEG images can contain millions of colors. JPEG uses a lossy compression algorithm (meaning that some of the image data can become lost, depending onn how much compression is used when the image is saved) to reduce the amount of space it would otherwise require to store so many colors. JPEG compresses the image by dividing it into tiny cubes and averaging color values within the cubes.