Making a slide bar stay in position after a reload

I am making a widget in AS3, looks like a equalizer.

I’m having the problem when swf reloads, everything will reset. Is there a way to keep this from happening. I was thinking maybe XML.

I am thinking as the user scrubs it is writing the XY coordinate to the xml doc but i dont think that can work because the xml doc would then haft to be saved.

Any thoughts on what key words I need to search for in the net.