Script being inherited by other objects; bug?

[Dave Cragg]

Hi Judy

I just realised it was yourself.

> Well, don't I feel stupid now?  ;-)

We all know that feeling.

But I learned something while answering your mail. To check what I  
wrote, I used an image with a transparent middle. (Like a doughnut.)  
As you pass the mouse over the transparent part, mouseLeave and  
mouseEnter messages get sent. I guess it makes sense, but I hadn't  
encountered it before. It would have caught me out one day. So thanks.

Cheers
Dave