onRollOut = function() {}
Invoked when the button loses focus. This can happen when the user clicks another button or area outside of the currently selected button. You must define a function that is executed when the event handler is invoked.
In the following example, a function that sends a trace() statement to the Output panel is defined for the onRollOut handler:
my_btn.onRollOut = function () {
trace ("onRollOut called");
};