flash as question thanks . . . .

[melnet]

hi

i have debug for a few days. i still can't solve the problems. to hope anyone can help me thanks

http://hk.geocities.com/colokit/hw1.fla

1.when the ball touch the wall, i dont know how to reflect another side in smooth. it sometimes work, sometimes not work,it depense on number of speed.
2.when the ball stop, i dont wanna random the way(_rotation)when i type the space bar button and wanna keep going the way when i type the space bar button.

thanks for help ; ;