These are examples of design of educational courses so pages are not completely functional.
Since these projects were created not for Internet it takes some time to load them.
Adapted for MSIE 4.x and higher only, sorry for the inconvenience.
The first one
The second - flash player required

Simple Flash screensaver. For 4.x and higher versions of Netscape & Explorer. GO
Another one. GO

An example of DHTML menu - for 4.x and higher IE&NN