Simple Button Listener not so simple

Question

Here is code that works fine without the Listener:
myButton_Zoom = function () {
bt_zoombig_mc._visible = !bt_zoombig_mc._visible;
Now when I try to add a listener it will not listen. Here is
the code with the Listener:
listener = new Object();
listener.myButton_Zoom = function(objEvt) {
bt_zoombig_mc._visible = !bt_zoombig_mc._visible;
myList.addEventListener("myButton_Zoom",listener);
Can anybody please tell me why?

Answer 1

This is the same code as you attached above. It will not work
for 2 reasons.
Will not toggle visibility and will not call a function.
Maybe think from scratch and make 2 buttons:
ButtonUp_mc and ButtonDn_mc
Place ButtonUp_mc on top of the other.
Put the same code on both
If you can achieve the visibility then we are half way there.
Next, make 2 simple functions in the root like:
goto_frame = function () {
nextFrame();
goBack_frame = function () {
prevFrame();
One function is called from either button (goes to next frame
and then goes back)
The goes back function is on the bottom and executes with the
toggle code after
the user has clicked the top button and made it _visible =
false.
Now we need to call these functions when the user clicks
either button so
this function has to appear in the toggle code with the
Listener either embbeded
with the Listener code or, outside following the listener
code.
In short, the button executes the _visible code, then calls
the function.