Individual alpha elements on a movieclip

Question

I have a movie clip that holds a button (latter a dynamic textfield -- (button is quicker for testing )).  I have the movie clip alpha set at .65 as I want the background image to bleed through slightly.  I put the button on the movieclip as I want it to be visible as the movieclip tweens on stage.  My question is, can I target the buttons alpha when the button is a part of my movie clip or does the movie clip and the button have to be seperate?
code:
package{
    import flash.display.*;
    import flash.events.*;
    import fl.transitions.Tween;
    import fl.transitions.easing.*;
    import fl.transitions.TweenEvent;
    public class coffeeAS extends MovieClip{
    public var myTweenMenuButton:Tween;
    public var myTweenPlatformA:Tween;
    public var menuButtonHolder_instance:menu_mc = new menu_mc();
    public var menuPlatform_instance:holderA_mc = new holderA_mc();
//    public var closeButtonMenu_instance:close_btn = new close_btn(); // btn alpha 1
        public function coffeeAS(){
            menuButtonHolder_instance.x = 812;
            menuButtonHolder_instance.y = 35;
            addChild(menuButtonHolder_instance);
            menuButtonHolder_instance.addEventListener(MouseEvent.CLICK, menuOnStage);
            menuPlatform_instance.x = 200;
            menuPlatform_instance.y = -320;
            menuPlatform_instance.alpha = .65;
//            closeButtonMenu_instance.alpha = 1; // btn alpha 1
            addChild(menuPlatform_instance);
            menuPlatform_instance.addEventListener(MouseEvent.CLICK, menuOffStage);
            function menuOnStage(event:MouseEvent):void{
                myTweenMenuButton = new Tween(menuButtonHolder_instance, "x", Strong.easeOut, 812, 900, 2, true);
                myTweenPlatformA = new Tween(menuPlatform_instance, "y", Strong.easeOut, -320, 100, 3, true);
            function menuOffStage(event:MouseEvent):void{
                myTweenMenuButton = new Tween(menuButtonHolder_instance, "x", Strong.easeOut, 900, 812, 2, true);
                myTweenPlatformA = new Tween(menuPlatform_instance, "y", Strong.easeOut, 100, -320, 3, true);

Answer 1

Thanks for the reply.
I was sort of wondering about that.  "...but the movieclip's alpha will define the maximum alpha of the button."
OK.  I can work with that.  Now I won't be chasing my tail for the next couple of hours trying to do something that doesn't work the way I was thinking.
I appreciate the help