[RESOLVED] Make onRelease only possible if previous image is displayed?

I have a gallery where if a thumbnail is selected it preloads, then fades out the current image and fades in the next. (Thanks Dawsonk).

If the user selects a thumbnail then selects a different thumbnail before the previous image has fully loaded (and faded to alpha=100) it is problematic. How could I code this so that a thumbnail could only be selected if there is an image displayed on screen?

My files are here http://board.flashkit.com/board/showthread.php?t=808636

I also need to do exactly the same thing with the main menu buttons. I've attached the .fla + dummy .swfs

Ok, solved it. I needed to say that the target_MC should be alpha=100 to let the button function.

Code:

---

current_btn.onRelease = function() {
                if (target_MC._alpha == 100) {

---

I was trying it before without == just =