Remove loaders with removeChild

Hello, I have a parent swf that loads in 6 little swfs. However, I have a button which should remove the loaders from the stage, no matter which one it is from the 6. At the moment I can only remove one of them because of the way(a stupid way) I have coded the application. So, when i click on the button which is supposed to remove whatever loader is currently sitting on top of my parent movie, it only removes one of the loaders - the one which is named first under my resetAssets function.

I can not have:

removeChild(ldr);
removeChild(ldr2);
removeChild(ldr3);
etc.

because only one of them is being displayed at the time and flash goes like "hey dude! where are the others you want me to remove then!?"

I suppose the whole code has been built up poorly and I should loop the swfs through one loader instead of having a loader for each swf.. Then I could just remove the loader no matter what sits in there..?

Well, I'm not good in coding and would appreciate help from anyone really as it is not a rare or difficult issue.

Code:

---

//imports
import flash.filters.*;
import flash.events.*;
import flash.display.Loader;
import flash.display.Sprite;       



var ldr:Loader = new Loader();
var req:URLRequest = new URLRequest("load_XML.swf");

var ldr2:Loader = new Loader();
var req2:URLRequest = new URLRequest("load_XML2.swf");

var ldr3:Loader = new Loader();
var req3:URLRequest = new URLRequest("load_XML3.swf");

var ldr4:Loader = new Loader();
var req4:URLRequest = new URLRequest("load_XML4.swf");

var ldr5:Loader = new Loader();
var req5:URLRequest = new URLRequest("load_XML5.swf");

var ldr6:Loader = new Loader();
var req6:URLRequest = new URLRequest("load_XML6.swf");


building_key.addEventListener(MouseEvent.CLICK, onClickKey);
building2_key.addEventListener(MouseEvent.CLICK, onClickKey);
building3_key.addEventListener(MouseEvent.CLICK, onClickKey);
library_key.addEventListener(MouseEvent.CLICK, onClickKey);
track_key.addEventListener(MouseEvent.CLICK, onClickKey);
roadblock_key.addEventListener(MouseEvent.CLICK, onClickKey);



function onClickKey(evt:MouseEvent):void {
       
        switch(evt.target.name) {
                case 'building_key':
                        ldr.load(req);
                        addChild(ldr);
                        break;
                case 'building2_key':
                        ldr2.load(req2);
                        addChild(ldr2);
                        break;
                case 'building3_key':
                        ldr3.load(req3);
                        addChild(ldr3);
                        break;
                case 'library_key':
                        ldr4.load(req4);
                        addChild(ldr4);
                        break;
                case 'track_key':
                        ldr5.load(req5);
                        addChild(ldr5);
                        break;
                case 'roadblock_key':
                        ldr6.load(req6);
                        addChild(ldr6);
                        break;
        }
       
}

/*function removeAllChildren($do:DisplayObjectContainer):void {
        while ($do.numChildren) {
                        $do.removeChildAt(0);
                }
        }
*/



//Filters
               
var myGlow:GlowFilter = new GlowFilter();
var unGlow:GlowFilter = new GlowFilter();

myGlow.color = 0x0070BC;
myGlow.alpha = 0.65;
myGlow.blurX = 15;
myGlow.blurY = 15;
myGlow.strength = 10;
unGlow.inner=true;
unGlow.color = 0x000000;
unGlow.blurX = 0;
unGlow.blurY = 0;


stop();

//Button Mode
this.building_key.buttonMode = true;
this.building2_key.buttonMode = true;
this.building3_key.buttonMode = true;
this.roadblock_key.buttonMode = true;
this.track_key.buttonMode = true;
this.library_key.buttonMode = true;
this.closeMe.buttonMode = true;
this.closeMe.visible = false;
//........................................................ Functions
function removeOverlisteners() {
        removeBuildingListener();
        removeBuildingListener2();
        removeBuildingListener3();
        removeBuildingListener4();
        removeBuildingListener5();
        removeBuildingListener6();
        this.building_key.visible = false;
        this.building2_key.visible = false;
        this.building3_key.visible = false;
        this.track_key.visible = false;
        this.library_key.visible = false;
        this.roadblock_key.visible = false;
        buildingline1.visible = false;
        buildingline2.visible = false;
        buildingline3.visible = false;
        trackline.visible = false;
        roadblockline.visible = false;
        libraryline.visible = false;
        this.closeMe.visible = true;
       
}

function resetAssets() {
        this.building_key.gotoAndStop(1);
        this.building2_key.gotoAndStop(1);
        this.building3_key.gotoAndStop(1);
        this.track_key.gotoAndStop(1);
        this.library_key.gotoAndStop(1);
        this.roadblock_key.gotoAndStop(1);
        this.building_key.visible = true;
        this.building2_key.visible = true;
        this.building3_key.visible = true;
        this.track_key.visible = true;
        this.library_key.visible = true;
        this.roadblock_key.visible = true;
        this.buildingline1.visible = true;
        this.buildingline2.visible = true;
        this.buildingline3.visible = true;
        this.trackline.visible = true;
        this.roadblockline.visible = true;
        this.libraryline.visible = true;
        building_mc.filters = [unGlow];
        building2_mc.filters = [unGlow];
        building3_mc.filters = [unGlow];
        track_mc.filters = [unGlow];
        roadblock_mc.filters = [unGlow];
        library_mc.filters = [unGlow];
        this.building_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver );
        this.building2_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver2 );
        this.building3_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver3 );
        this.library_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver4 );
        this.track_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver5 );
        this.roadblock_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver6 );
        this.building_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut);
        this.building2_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut2);
        this.building3_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut3);
        this.library_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut4);
        this.track_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut5);
        this.roadblock_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut6);
        this.closeMe.visible = false;
        removeChild(ldr);
        removeChild(ldr2);
        removeChild(ldr3);
        removeChild(ldr4);
        removeChild(ldr5);
        removeChild(ldr6);
       
       
}

this.closeMe.addEventListener( MouseEvent.MOUSE_DOWN, resetMe);

function resetMe(MouseEvent:Event):void {
        resetAssets();
        addDownListener();
        addDownListener2();
        addDownListener3();
        addDownListener4();
        addDownListener5();
        addDownListener6();
       
}





//........................................................ BUILDING 1
//Building KEY Event Listeners
this.building_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver );
this.building_key.addEventListener( MouseEvent.MOUSE_DOWN, buildingDown);
this.building_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut);


function buildingOver (MouseEvent:Event):void {
        building_mc.filters = [myGlow];
        building_key.scaleX += .3;
        building_key.scaleY += .3;
        removeBuildingListener();
}

function buildingDown (MouseEvent:Event):void {
        removeOverlisteners();
        building_key.visible = true;
        this.building_key.gotoAndStop(2);
        building_key.scaleX -= .3;
        building_key.scaleY -= .3;
        removeDownListener();
        removeBuildingOut();
//        ldr.load(req);
//        addChild(ldr);
        trace("Loader1");
        ldr.x = 76;
        ldr.y = 5;
       
}

function buildingOut (MouseEvent:Event):void {
        building_mc.filters = [unGlow];
        building_key.scaleX -= .3;
        building_key.scaleY -= .3;
        addBuildingListener();
       
}

function removeBuildingListener() {
        this.building_key.removeEventListener(MouseEvent.MOUSE_OVER, buildingOver);
}

function addBuildingListener() {
        this.building_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver);
}
/*
function addBuildingOutListener() {
        this.building_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut);
}
*/

function removeBuildingOut() {
        this.building_key.removeEventListener( MouseEvent.MOUSE_OUT, buildingOut);
}

function removeDownListener() {
        this.building_key.removeEventListener (MouseEvent.MOUSE_DOWN, buildingDown);
}

function addDownListener() {
        this.building_key.addEventListener (MouseEvent.MOUSE_DOWN, buildingDown);
}

trace ("done");
//........................................................ BUILDING 2
//Building KEY Event Listeners
this.building2_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver2 );
this.building2_key.addEventListener( MouseEvent.MOUSE_DOWN, buildingDown2);
this.building2_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut2);


function buildingOver2 (MouseEvent:Event):void {
        building2_mc.filters = [myGlow];
        building2_key.scaleX += .3;
        building2_key.scaleY += .3;
        removeBuildingListener2();
}

function buildingDown2 (MouseEvent:Event):void {
        removeOverlisteners();
        building2_key.visible = true;
        this.building2_key.gotoAndStop(2);
        building2_key.scaleX -= .3;
        building2_key.scaleY -= .3;
        removeDownListener2();
        removeBuildingOut2();
//        ldr2.load(req2);
//        addChild(ldr2);
        trace("Loader2");
        ldr2.x = 76;
        ldr2.y = 5;
       
}

function buildingOut2 (MouseEvent:Event):void {
        building2_mc.filters = [unGlow];
        building2_key.scaleX -= .3;
        building2_key.scaleY -= .3;
        addBuildingListener2();
       
}

function removeBuildingListener2() {
        this.building2_key.removeEventListener(MouseEvent.MOUSE_OVER, buildingOver2);
}

function addBuildingListener2() {
        this.building2_key.addEventListener(MouseEvent.MOUSE_OVER, buildingOver2);
}

function removeBuildingOut2() {
        this.building2_key.removeEventListener( MouseEvent.MOUSE_OUT, buildingOut2);
}
/*
function addBuildingOutListener2() {
        this.building2_key.addEventListener( MouseEvent.MOUSE_OUT, buildingOut2);
}
*/

function removeDownListener2() {
        this.building2_key.removeEventListener (MouseEvent.MOUSE_DOWN, buildingDown2);
}

function addDownListener2() {
        this.building2_key.addEventListener (MouseEvent.MOUSE_DOWN, buildingDown2);
}

trace ("done");


//Building 3

//Building 4

//Building 5

//Building 6

---

Code:

---

//imports
import flash.filters.*;
import flash.events.*;
import flash.display.Loader;
import flash.display.Sprite;

stop();

var dict:Dictionary = new Dictionary();
dict[this.building_key]={url:"load_XML.swf", mc:building_mc, aline:buildingline1, xval:76, yval:5};
dict[this.building2_key]={url:"load_XML2.swf", mc:building2_mc, aline:buildingline2, xval:76, yval:5};
dict[this.building3_key]={url:"load_XML3.swf", mc:building3_mc, aline:buildingline3, xval:76, yval:5};
dict[this.roadblock_key]={url:"load_XML4.swf", mc:roadblock_mc, aline:roadblockline, xval:76, yval:5};
dict[this.track_key]={url:"load_XML5.swf", mc:track_mc, aline:trackline, xval:76, yval:5};
dict[this.library_key]={url:"load_XML6.swf", mc:library_mc, aline:libraryline, xval:76, yval:5};

var ldr:Loader = new Loader();
addChild(ldr);
setListeners();

closeMe.buttonMode=true;
closeMe.visible=false;
closeMe.addEventListener(MouseEvent.CLICK, resetAssets);

function setListeners():void {
        for (var i in dict) {
                i.buttonMode=true;
                i.addEventListener(MouseEvent.CLICK, doClick);
                i.addEventListener(MouseEvent.MOUSE_OVER, doOver);
                i.addEventListener(MouseEvent.MOUSE_OUT, doOut);
        }
}
function clearListeners():void {
        for (var i in dict) {
                i.buttonMode=false;
                i.removeEventListener(MouseEvent.CLICK, doClick);
                i.removeEventListener(MouseEvent.MOUSE_OVER, doOver);
                i.removeEventListener(MouseEvent.MOUSE_OUT, doOut);
        }
}
function doClick(evt:MouseEvent):void {
        hideAssets();
        ldr.load(new URLRequest(dict[evt.currentTarget].url));
        evt.currentTarget.visible=true;
        evt.currentTarget.gotoAndStop(2);
        evt.currentTarget.scaleX-=.3;
        evt.currentTarget.scaleY-=.3;
        ldr.x=dict[evt.currentTarget].xval;
        ldr.y=dict[evt.currentTarget].yval;
}
function doOver(evt:Event):void {
        dict[evt.currentTarget].mc.filters=[myGlow];
        evt.currentTarget.scaleX+=.3;
        evt.currentTarget.scaleY+=.3;
}
function doOut(evt:Event):void {
        dict[evt.currentTarget].mc.filters=[unGlow];
        evt.currentTarget.scaleX-=.3;
        evt.currentTarget.scaleY-=.3;
}
function hideAssets():void {
        clearListeners();
        for (var i in dict) {
                i.visible=false;
                dict[i].aline.visible=false;
        }
        closeMe.visible=true;
}
function resetAssets(evt:Event=null):void {
        setListeners();
        for (var i in dict) {
                i.gotoAndStop(1);
                i.visible=true;
                dict[i].mc.filters=[unGlow];
                dict[i].aline.visible=true;
        }
        closeMe.visible=false;
        ldr.unloadAndStop();
}

//Filters
var myGlow:GlowFilter = new GlowFilter();
var unGlow:GlowFilter = new GlowFilter();
myGlow.color=0x0070BC;
myGlow.alpha=0.65;
myGlow.blurX=15;
myGlow.blurY=15;
myGlow.strength=10;
unGlow.inner=true;
unGlow.color=0x000000;
unGlow.blurX=0;
unGlow.blurY=0;

---