Referring to current button inside mc

hi,

i want to reffer to the current button like:

this._xscale …

But the problem is that the above will also execute the function on the movieclip that contains this button. And i dont want this.

Is there another way to reffer to my button or should i just type its instance name?
It is just that i have a lot of buttons that i have to copy this code to so it would be easier to use a general name instead of replacing the buttons name for each new button.

thanks!