Best practice to remove and reassign listeners to button

Question

Hello,
I'm trying, to remove and then reassign an MouseEvent.CLICK to a on stage button, using a second on stage button.
when first button is released, it works fine, but when 2nd is released, the 1st one MouseEvent should be cleared and re-assigned a second listenner.
what I'm missing here?
example code
bt_ok.addEventListener(MouseEvent.CLICK, log_in);
bt_pesquisa.addEventListener(MouseEvent.CLICK, pesquisar);
function log_in(e:MouseEvent) {
     var btn = getChildByName("bt_pesquisa");
     if(btn.hasEventListener(MouseEvent.CLICK)) {
          trace("existe um listener activo");
          if(btn.removeEventListener(MouseEvent.CLICK, pesquisar)) {
               trace ("1 remocao");
               btn.addEventListener(MouseEvent.CLICK, pesquisar_2)
          } else {
              trace ("not removed");
thanks for help
Pluda

Answer 1

Hello, thanks for reply
I get not removed, but my 2 buttons looses their listeners
actual code, the same trace results
import flash.events.*;
import fl.controls.Button;
bt_ok.addEventListener(MouseEvent.CLICK, log_in);
bt_pesquisa.addEventListener(MouseEvent.CLICK, pesquisar);
function log_in(e:MouseEvent) {
var btn=getChildByName("bt_pesquisa");
if (btn.hasEventListener(MouseEvent.CLICK)) {
trace("existe um listener activo");
if (! btn.removeEventListener(MouseEvent.CLICK,pesquisar)) {
trace("not removed");
} else {
trace("1 remocao");
btn.addEventListener(MouseEvent.CLICK, pesquisar_2);
function pesquisar(e:MouseEvent) {
trace("pesquisar");
function pesquisar_2(e:MouseEvent) {
trace("pesquisar 2");