If you are on a PC running Internet Explorer, you can see the hidden pictures. Just highlight the pictures with your mouse or hit CTRL+a (performs a "select all"). Normally, that just makes an image look tinted, but these images are different. Incidentally, these are gif images, and there is no scripting or coding involved.

Hidden Pictures Within Pictures

Learn to Make Your Own

wolf amongst sheep forrest guy anakin vader obi-wan jacko ape leopard grass dali narcissus