Add a button to page turning script

I’ve been messing around with this for a while now and I can’t figure out how it works.

I need to add a button that opens up the next/previous page. A forward/backwards control. Know what I mean?

Could someone please take a look at the attached script and see if you can figure it out?

http://home.no.net/praxiz/pageflipper.fla

PS: Sorry about the size :bored:

TIA,
praxiz