Springs: Elasticity, Physics, and Flash MX - PROBLEM!

The ball sits on the middle of a line. When the ball is dragged, it remains attached to the middle of the line and the line streches with it, but the edges of the line remain in the same place.

This is the line with the ball:
|
|
0
|
|

This is when streched:

_
__0
_/
/

(don’t mind the underscores _ EZboard doesn’t support unused spaces)

I just sent it to you. But the lines are a little bit late, I don’t know why…
pom 0]

Yes they are, but thanks anyway!