Because 1) your window is larger and 2) you don't have javascript blocked. This allowed the following script to run.
CODE
var imgs = [
new SlideImage('http://web.mac.com/dolphin1399/iWeb/Site/Photos_files/image001.jpg', 800, 543, 'Bambi and Thumper\n')]
I detest 'authors' who decide what size window I have on my screen.
Just another reason to block javascripts unless I want them to run. Thanks FF and NoScript!
AH, thanks. I probably need to install NoScript.
Dolphin, it wasn't a prob - just had me curious.