Description: (source)

This applet shows (and repeat it) a sequence of gif-files which have to be in a special sub-directory. You can define the delay before the next gif is shown.

Implementation:

Put the applet tag from this HTML-Document into your document. Copy every *.class into the same directory as your document is. Create there a sub-directory called duke (or as you have defined in your applet tag) and copy every gif-file with the naming convetion Tx.gif (x=1...n) into that directory.