Function to change alpha of a movie clip

Hi all, I am having this bit of code not working for me. I want to have a function 'thisAplha'to analyze a mc's alpha stage, and depending on it either appear or disappear it. Basically I am trying to disappear/appear on screen the inv0 mc when you click it.
Actionscripit:
stop(); var mbx = _root.page.MsgBox; var mouseXspace = this._xmouse+20; var mouseYspace = this._ymouse+20; var css = new TextField.StyleSheet(); cssurl = "includes/default.css"; css.load(cssurl); css.onLoad = function(success) { if (success) { for (i=0; i<=6; i++) { this.eval("txt"+i).html = true; this.eval("txt"+i).multiline = true; this.eval("txt"+i).wordWrap = true; this.eval("txt"+i).styleSheet = css; eval("txt"+i).htmlText = eval("_root.page.data.label"+i); } } }; inv0.onRelease = function() { thisAlpha(inv0); //inv0._alpha = 100; mbx.lockCenter(false); mbx.lockWidth("300"); mbx.setAutoSize(); mbx._x = mouseXspace; mbx._y = mouseYspace; mbx.setMsgBoxStyle(_root.page.lessonTwo); mbx.popup(_root.page.data.text1); }; inv1.onRelease = function() { inv1._alpha = 100; mbx.lockCenter(false); mbx.lockWidth("300"); mbx.setAutoSize(); mbx._x = mouseXspace; mbx._y = mouseYspace; mbx.setMsgBoxStyle(_root.page.lessonTwo); mbx.popup(_root.page.data.text2); }; inv2.onRelease = function() { inv2._alpha = 100; mbx.lockCenter(false); mbx.lockWidth("300"); mbx.setAutoSize(); mbx._x = mouseXspace; mbx._y = mouseYspace; mbx.setMsgBoxStyle(_root.page.lessonTwo); mbx.popup(_root.page.data.text3); }; function thisAlpha(yeah:MovieClip) { if (this[yeah]._alpha <= 50) { this[yeah]._alpha = 100; trace; } if (this[yeah]._alpha >= 51) { this[yeah]._alpha = 0; } else { this[yeah]._alpha = 40; } }
Thank you all.
Mauricio

code:
stop();
var mbx = _root.page.MsgBox;
var mouseXspace = this._xmouse+20;
var mouseYspace = this._ymouse+20;
var css = new TextField.StyleSheet();
cssurl = "includes/default.css";
css.load(cssurl);
css.onLoad = function(success) {
    if (success) {
        for (i=0; i<=6; i++) {
            this.eval("txt"+i).html = true;
            this.eval("txt"+i).multiline = true;
            this.eval("txt"+i).wordWrap = true;
            this.eval("txt"+i).styleSheet = css;
            eval("txt"+i).htmlText = eval("_root.page.data.label"+i);
inv0.onRelease = function() {
    thisAlpha(inv0);
    //inv0._alpha = 100;
    mbx.lockCenter(false);
    mbx.lockWidth("300");
    mbx.setAutoSize();
    mbx._x = mouseXspace;
    mbx._y = mouseYspace;
    mbx.setMsgBoxStyle(_root.page.lessonTwo);
    mbx.popup(_root.page.data.text1);
inv1.onRelease = function() {
    inv1._alpha = 100;
    mbx.lockCenter(false);
    mbx.lockWidth("300");
    mbx.setAutoSize();
    mbx._x = mouseXspace;
    mbx._y = mouseYspace;
    mbx.setMsgBoxStyle(_root.page.lessonTwo);
    mbx.popup(_root.page.data.text2);
inv2.onRelease = function() {
    inv2._alpha = 100;
    mbx.lockCenter(false);
    mbx.lockWidth("300");
    mbx.setAutoSize();
    mbx._x = mouseXspace;
    mbx._y = mouseYspace;
    mbx.setMsgBoxStyle(_root.page.lessonTwo);
    mbx.popup(_root.page.data.text3);
function thisAlpha(yeah:MovieClip) {
    if (this[yeah]._alpha <= 50) {
        this[yeah]._alpha = 100;
        trace;
    if (this[yeah]._alpha >= 51) {
        this[yeah]._alpha = 0;
    } else {
        this[yeah]._alpha = 40;

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Date: Thu, 9 Jun 2011 13:47:57 -0600
From: [email protected]
To: [email protected]
Subject: removeChild for movie clip that was added in another function?
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