Mouse cursor changing on mouse over a button

I´ve made a custom mouse cursor but the cliente wants that little hand when the mouse is over a button and/or links. Is that possible?

ummm try this…

name_of_ur_button.onrollOver = function () {
this.useHandCursor = true;
}

what about something like this felipegm:

custom_cursor._visible = false;
button.onRollOver = function () {
this.onEnterFrame = function () {
Mouse.hide();
updateAfterEvent();
custom_cursor._x = _xmouse;
custom_cursor._y = _ymouse;
custom_cursor._visible = true;

}
}

button.onRollOut = function () {
Mouse.show();
custom_cursor._visible = false;
delete this.onEnterFrame;
}