[mx 2004] fade in embedded text

programming flash
1

I’m trying to get some text to fade in and I’d like to do it purely actionscript if possible
I’ve already embedded the font. On the stage I have 2 movieclip buttons, and a dynamic text box (instance name t) this is the code I have, which works but the text just appears, and I’d like it to fade in. I’ve tried a bunch of thisngs with _alpha but it’s not working. Any help- I’d just like it to go from 0 to 100 when the movieclip buttons are pressed.


var headerText:String = "";


mc_btn.onRelease = function(){    
    headerText =  "fashion design";
    t.text = headerText;
}
    

    mc2_btn.onRelease = function(){
    headerText = "portfolio";
     t.text = headerText;
    
    }

Any help? Thanks!