How to get focus on a movieclip or sprite

This starting to get very annoying so I had to seek some help.

How can I cause a sprite or movieclip to get focus on a Mouse Event? I realized that this only happens when I put a textfield inside the movieclip/sprite. If I click in an area outside the textfield (but still within the movieclip/sprite) it will cause the mouse event BUT it will not get focus -

My objective is to let the button once pressed, to cause the currently focused object to lose focus. That focused object is an input textfield.

Does it make sense what Im trying to achieve?