С учетом моего класса

Код:
import ru.inils.date.DateName;
var txt:TextField = this.createTextField ("time_txt", 1, Stage.width / 2 - 100, Stage.height / 2 - 10, 200, 20);
var fmt:TextFormat = new TextFormat ();
fmt.font = "Tahoma";
txt.border = true;
txt.borderColor = 0xff0000;
txt.background = true;
txt.backgroundColor = 0xcccccc;
txt.autoSize = true;
txt.textColor = 0xff0000;
txt.setNewTextFormat (fmt);
var yourDate:Date = new Date (2001, 1, 15);
function countup () {
var date:Date = new Date ();
date.setMilliseconds (0);
date.setSeconds (0);
date.setMinutes (0);
date.setHours (0);
var delta:Date = new Date (date.getTime () - yourDate.getTime ());
var years:String = '';
var months:String = '';
var days:String = '';
if (delta.getFullYear () - 1970 > 0) {
years = " " + String (delta.getFullYear () - 1970) + " " + DateName.getName (delta.getFullYear () - 1970, DateName.NAME_YEARS);
}
if (delta.getMonth () > 0) {
months = " " + String (delta.getMonth ()) + " " + DateName.getName (delta.getMonth (), DateName.NAME_MONTHS);
}
if (delta.getDate () > 0) {
days = " " + String (delta.getDate ()) + " " + DateName.getName (delta.getDate (), DateName.NAME_DAYS);
}
txt.text = "Со дня нашей свадьбы прошло:" + years + months + days;
}
interval = setInterval (countup, 1000);
countup ();