I'll get the specs, maybe a flow chart, and visuals that show what I'm after to you in the week ahead (would pdfs be best to send?).
Re "By the way..." I'm open to better ideas, but I was thinking of providing a cookie that holds the path to the image folder where the currently required collection of images is found. The cookie would be planted just before 'our' window is opened from elsewhere via newWin or similar. I'll explain why cookies, instead of just passing the path as a parameter in newWin, next week.
...thanks very much for looking at this for me.