[catilina]

вроде как заработало:

TextFormat.getFontFamily = function() {
return this.$fontList;
};
TextFormat.setFontFamily = function(fontList) {
if (typeof (fontList) == "string") {
fontList = fontList.split(",");
}
this.$fontList = fontList;
ASSetPropFlags(this, "$fontList", 1);
if (TextField.fontIsAvailable == undefined) {
var fontIsAvailable = TextField.fontIsAvailable={};
var found = TextField.getFontList();
var j = found.length, jName;
while (j--) {
jName = found[j];
fontIsAvailable[jName] = new Boolean(true);
fontIsAvailable[jName].correctCase = jName;
}
} else {
var fontIsAvailable = TextField.fontIsAvailable;
}
var n = fontList.length;
for (var i = 0; i<n; i++) {
if (fontIsAvailable[fontList[i]]) {
this.font = fontIsAvailable[fontList[i]].correctCase;
return;
}
}
};
with (TextFormat) {
prototype.addProperty("fontFamily", getFontFamily, setFontFamily);
}
myTextFormat = new TextFormat();
myTextFormat.fontFamily = "Verdana,Arial";
myTextField.setTextFormat(myTextFormat);

но все еще не работает для Unicode фонтов, типа "Arial Unicode MS"... SOS!!