Control mouse events on all buttons

What I make usually is have an array and set different levels of mouse blocking.

Example:

I have the menu, the contents, and lets say something else that appears on top of everything called animation.

mouse_block = new array(false,false,false)

The first false corresponds to the menu, the second to the contents, etc.

So, I check on every clickable mc if their level is false or true.

on(press){
if(mouse_block[1]){
//do what ever it is suposed to do
this.useHandCursor = true;
} else {
this.useHandCursor = false;
}
}

My problem is that I need to write that on every movieclip…

Can you point me a way of optimizing this?

I thought of using the prototype, but from what I know you can only create new methods an properties.

Is there a way of modifying the mouse events like onPress or onRollOver?.. or create your own mouse events using those as a starting point?

Thanks