Thanks Anitarf! Using this system now. Very easy to use.
Some quick notes:
For amateur developers like me, you might want to include valid sample "y" values in your comments. The first value I tried was 150...needless to say, I couldn't see the message.
It doesn't actually seem to be centering for me, and I'm assuming it's because I'm on a widescreen. The values are a little off to the left. I doubt you can do anything about it...just thought I'd let you know. The effect is still good.