Код:
var mydate:Date = new Date();
var month:Number = mydate.getMonth();
var months:Array = new Array('JANUARY, 'FEBRUARY', 'MARCH', 'APRIL', 'MAY', 'JUNE', 'JULY', 'AUGUST', 'SEPTEMBER', 'OCTOBER', 'NOVEMBER', 'DECEMBER');
var current:String = months[month];