Can't remember this scripting program

Hi there,

I can't for the life of me remember how I did this before, but I found a way so that when I hovered over certain things (checkboxes etc) I could find out all the properties and actions I could perform on them using applescript.

If I remember correctly there was a little window that used to tell you all the information.

I'm pretty sure it's built into Mac OS X
Any ideas what I'm on about?

Thanks

 

Found it.
It's called accessibility Inspector found in the developer apps.