Window to window?

Can I send information from one Blender (running python script) window to another.
http://www.door3.org/WindowExampleAnimated.gif
In this example when I move the slider in the left window the value would update the other window.

You can try this:

Coolsville!

Looks like I need to learn French as well as Python. :wink:

I had a chance to play with those scripts this evening. They worked out just the way I had hoped Thanks JMS!