Re: Website Accessibility
The arrow keys are for scrolling. However, does your scrolling mechanism interfere with other things that need scrolling? Will, for example, an attempt to scroll the complete window (assuming it's small enough to require scrolling) also or (worse) instead scroll the images? Does your scrolling somehow interfere with the browser's own functions? (I know, for example, a page that catches keys in a way that Firefox's type-ahead-find doesn't work anymore.) Does Firefox's caret browsing still work? (Press F7 to activate it.) When exactly do you scroll the images? Whenever a key is pressed, or only if something inside that area has the keyboard focus? (Personally, I'd expect the latter, but I don't know about people who aren't as familiar with computers. My suggestion is that you get a bunch of people, some friends and family, and ask them to navigate your site without a mouse. If they can do it, you've passed. If they don't, ask them to navigate any other site without a mouse. If they can't do that either, then they're unsuitable testers; if they can, you screwed up.)
I think that about covers everything.