Sylesheet wird nicht angenommen

[compuboy1010]

Meine TextArea zeigt keinerlei Veränderung, wenn ich am Stylesheet etwas verändere. Sieht jemand den Grund?

function displayDescription():Void {
    var naStyle:TextField.StyleSheet = new TextField.StyleSheet();
    naStyle.setStyle("html", {fontFamily:"Verdana, sans-serif", fontSize:"10px", color:"#000000"});
    naStyle.setStyle("body", {color:"#000000"});
    this.mcSection.removeMovieClip();
    this.createEmptyMovieClip("mcSection", getNextHighestDepth());
    this.onEnterFrame = function():Void  {
        delete this.onEnterFrame;
        this.mcSection.moveTo(0, 0);
        this.mcSection.attachMovie("productSlideshow", "mcProductSlideshow", this.mcSection.getNextHighestDepth(), {_x:0, _y:50});
        this.mcSection.createClassObject(TextArea, "descr_ta", this.mcSection.getNextHighestDepth());
        this.mcSection.descr_ta.styleSheet = naStyle;
        this.mcSection.descr_ta.html = true;
        this.mcSection.descr_ta.editable = false;
        this.mcSection.descr_ta.move(160, 75);
        this.mcSection.descr_ta.setSize(200, 200);
        this.mcSection.descr_ta.wordWrap = true;
        this.mcSection.descr_ta.text = _global.sDescription;
        this.mcSection.descr_ta.hScrollPolicy = "off";
        this.mcSection.descr_ta.redraw();
    };
}