Smooth Motion

Hello everyone, this is only my second thread. I am trying to use a Smooth Motion function as available from Actionscript.org. I am some sort of newbie or novice with this.

http://www.actionscript.org/actionscripts_library/Movieclip_Object/

I want to implement it. I have set up a button to move a movieclip’s y axis on release. Very basic.[indent][font=Courier New]on (release) {[/font]
[font=Courier New] setProperty ("_root.orange_mc", _y, Number(getproperty("_root.orange_mc", _y))+10);[/font]
[font=Courier New] xpos = _x;[/font]
[font=Courier New] ypos = _y;[/font]
[font=Courier New] }[/font]
[/indent]How do I use that Smooth Motion (rubberband) function in what I have? Thanks.