How can make it stop and slow?

1

please check out my attachments files. a 3dnav fla.

I have two question:
1.how can I make it stop when I rollover a button that have scaled biggest.

  1. I want to make it rotate in an Area.

How can I make it slowly when _xmouse not in an Area.for example,I want to make it rotate in 0,0,400,400.when _xmouse >400,how can I make it rotate slowly.

my English is bad.
pls help me! thanks a lot.