Ok, I have my draggable clip working, but want a close book to be clickable

I have a clip properly working with:

on (press) {
startDrag (this, false);
on (release) {

But I also want a close box at the top right corner to be clickable for an unload action.

How do I perform the 2nd areas clickable action if it is a sub-object of draggable mc.