Resizable scrollbar with dynamic text?

Hello, again i’m new to Flash…hope this is an OK question…:smiley:

Is it possible to make a scrollbar where the “scrollable area” resizes (or changes ratio?) depending on the amount of dynamic text is added (from an external text/HTML file). If so, how can this be done?

I’m making a website where the owners only want to periodically update the external text file and DO NOT want to screw around with changing scrollarea heights, enlarging MC’s etc.

I stumbled across this :
http://www.kirupa.com/developer/flash5/menudragger2.htm

To my knowledge, it looks like it might be dynamically changing the ratio’s of the scrolling area? I’m trying to pick it apart and figure it out…

Is this possible?