Event listener to check that function complete

programming flash
1

I am trying to create an event listener to check that a function has completed before the next action is run. In simple terms I have a module that is opened and closed via two functions… module_open() and module_close().

Each function has tween elements that must complete before the next element is processed… i.e the next function, etc.

This is the code I have ( have attempted to create an event listener but I seem doing something wrong. I am not even sure that it is possible to create an event listener that checks for a function finishing before calling the next function.


function onAbout(event:Event):void {

    module_close()
    module_close.addEventListener(Event.COMPLETE, onClose_Complete);
    
    function onClose_Complete():void{
    
    logo_block.gotoAndPlay("about");
    title_text.gotoAndStop("about");

    if (empty_mc_main.numChildren >0) {
        empty_mc_main.removeChildAt(0);
    }
    
    var myMovieClip:MovieClip = new about_page_mc();
    empty_mc_main.addChild(myMovieClip);
    
    living_btn.visible = false;
    lifestyle_btn.visible = false;
    elements_btn.visible = false;
    colour_btn.visible = false;
    
    }

}

I expect there is a standard way of doing this.

Any help much appreciated.

Thx