Switching images...

I have used one interesting suggestion present in the post "Switch images at
timed interval" and put an effect in my web site
http://www.tortebomboniere.com/
using some photos of mine.
But I am not quite sure that the effect is right visible on other monitor -
resolutions - browsers different from mine.
Coud you please someone of you have a look and tell me something about?
Don't be too hard, I haven't very practice...
Many thanks
Paul