The Teetor Totter Balancer

Your problem is simple.  There is a teeter-totter with 10 spots on which to hang things.  The fulcrum is in the middle.
When the user clicks on a weight, that weight should increase.
You simply have to decide weather the teeter-totter will lean left, right, or be balanced.

Points	Task
1	Weight change when you click on them.
1	Weight decrease when you click below them, and increase when you click above them.
1	The lever leans the right way.
1	The lever has more than 3 positions (more than lean-left, middle, and lean-right).
1	If you click FAR from the weights, the weights don't change.
1	If the lever leans too far, then the kid falls off.
1	If the total weight exceeds a fixed limit, the teeter breaks.
-1	Every day after Mon Mar 15th.

The Applet