Ja sou um AS3 ninja ?

as3-ninja.as

public static function carregaCombo(combo:DropDownList, funcao:Function, currentSelected:*=null, callback:Function=null):void
{
	funcao.apply(null, [function(event:ResultEvent):void {
		combo.dataProvider = event.result as ArrayCollection;
		
		if(currentSelected)
			selecionaCorrente(false, combo, currentSelected);
		
		if(callback!=null)
			callback.apply(null, [event]);
	}]);
}