Flash Player 6.
my_btn.onRollOver
None.
Nothing.
Event handler; invoked when the pointer rolls over a button area.
You must define a function that executes when the event handler is invoked.
The following example defines a function for the onRollOver handler that sends a trace action to the Output window.
my_btn.onRollOver = function () {
trace ("onRollOver called");
};