#1 Set the step size.

[Vinicius Pitta Lima de Araujo]

Allow the user to set the step size instead of ever
user 1 to increase/decrease the value of the box.

[Vinicius Pitta Lima de Araujo]

Logged In: YES
user_id=950930

This change in the mouseDownArrow allow stop the infinity
executeUpdateVal but I don't find a final solution yet.

CODE:
//if a PeriodicalExecuter is updating the box value then
stop it before proceede and create a new PeriodicalExecuter
if(this.pe) {
this.pe.stop();
}
this.pe = new
PeriodicalExecuter(function(){spin.executeUpdateVal(box,diff)},
0.5);

[Vinicius Pitta Lima de Araujo]

Logged In: YES
user_id=950930

Sorry! I updated the wrong area. The attached file has the
setStepSize method.

[Vinicius Pitta Lima de Araujo]

Source changed to allow the user set the setp size.