Creating dynamic motion guides

Hopefully I am not repeating a question that has already been asked.

Anyway, I am trying to have a motion guide dynamically created depending on a few mouse variables (speed, direction, angle, etc.). I was wondering if it is possible to dynamically create motion guides & if so, how?

If it isn't possible, is there another way to perform a similar task?

okay, no answer

next question. Is it possible to create graphics (lines) through an equation in actionscript, say a parabola or a circle using the coordinate system?

Do you mean like this?

http://proto.layer51.com/d.aspx?f=952

yes! that's it exactly, thank you very very very much