Remarks to some problems (and the solutions I found) between the following browsers:

For Photos of 2005 (and newer) I wanted to use icons and shortcut keys to step for- and backwards through the pictures.

For the shortcut key I use the 'accesskey' keyword in the html file.

To make everything more easy to maintain, I'm using CSS (Cascading Style Sheet) and here I also found some problems between the browsers:

Alignment: I try to put everything in the middle.

In IE one can define icons (background pictures) in the CSS file and they will show on the screen: so if I wanted to change the name of the icon, I only had to do it in the one CSS file.

Not so in FF and OP: these browsers don't recognize them so I had to define every icon in each of the many html files instead of just once in the CSS file.

When clicking on the yellow Copyright line under each photo, I wanted you to be able to send a mail, so I wanted to start the mail program.
I did not want the mailadress inside the html, because 'webcrawlers' could find it and use the address to send spam to.
I also did not want to have to change many, many html files when the mailaddress changes, so by coding this in CSS I only need to change it in one place.

In IE the following code does the job:

The mail program starts right away.

In FF and OP it looks like:

For all 3 browsers:
In one CSS: a.Mike:active {background: url('mailto:wijchman@domainname.com?subject=Website fotos Winter 2005 Feedback');}
"a.Mike:active" becomes active when you press the shortcut key "w"

In OP, the mail program does NOT start at all !
In FF, the mail program starts once in a while... Don't know yet when it does, and when it doesn't, but it's real strange behaviour!!

Hope this info helps when viewing the photos in various browsers.