This radio tuner uses custom states to create a nifty scrollbar that seems to follow the cursor.
Here's how it works:
It's a big TIG! The colored squares in the scrollbar have Over states that target the big TIG. As the viewer's cursor moves over a square, the TIG is told to move the scrollbar thumb thingie. Notice that this only works when the cursor is over the square. (These squares were colored to make things clear for this example. In real life, you'd want to make them invisible.)
You might also notice that if you try to click and drag, the thumb doesn't follow the cursor (You'll have to cut me a break, I was lazy and didn't get to create the [duplicate] down states). :)
In addition to targeting the scrollbar thumb, the rollovers also target the tuner window. I used a cheap trick to get the tuner to bounce around. Dig into the file to see how it was done!