Mouse event - child button tutorial
One important aspect of AS3, which was not or only partially possible is to separate events with related objects. For example, there is a button or a MovieClip with button properties. In former Flash versions it was impossible to have a child of those objects with the same properties. In other words, if there is a button within a button, that was not recognized as a separate button, because events for the parent button were 'covering' the child button and preventing it from functioning. Using AS3 we can separate these events and this is shown with stage and buttons in this tutorial.