As'd isometry in flash

This is my first post in the Source/Experiments forum, so I’m not sure if this really goes here, but, it’ll get moved if it doesn’t. I’m working on a flash that draws a line of a certain slope (the only ones i’ll do are 1, -1, 1/2, -1/2, 2, -2, horiz., and vert.) by rescaling it based on a function call. My problem is that I wanted to be able to put a line at a certain place based on an mc in another line, but it doesn’t work. It gets the value from the mc itself, and doesn’t relate it to the entire movie’s stage. Check out the .fla to see what I mean.