Applying font type to radio buttons

How do you apply a font type to a radio button.  I thought I was doing it correctly, but it keeps showing as Arial.

I've embedded the font as AirCruiser and given it a class name.

I use the following code:

var font:AirCruiser=new AirCruiser();

var myformat:TextFormat = new TextFormat();

myformat.color = 0xFFFFFF;

myformat.font = font.fontname;

myformat.size = 48;

normalButton.setStyle("textFormat", myformat);

hardButton.setStyle("textFormat", myformat);

suicidalButton.setStyle("textFormat", myformat);

It takes the color and the size, but the font remains arial.

Any ideas what I'm doing wrong?