removeChild Problems

[eightballmark]

Hi, I'm working on a game that needs certain pages to be loaded depending on a random generated number.

Here's what I've done to make each room load up

function onEssenButtonClick(event:MouseEvent):void
    {
        if (1 == theNumber){
        addChild(essenPage1);
        removeChild(mapPage);
        }
        if (2 == theNumber){
        addChild(essenPage2);
        removeChild(mapPage);
        }
    }
function onLibButtonClick(event:MouseEvent):void
    {
        if (1 == theNumber){
        addChild(libPage1);
        removeChild(mapPage);
        }
        if (2 == theNumber){
        addChild(libPage2);
        removeChild(mapPage);
        }
    }

Each of these rooms have the 'mapButton' on it and here's what I'm using to back out of the room.

function onMapButtonClick(event:MouseEvent):void
    {
    addChild(mapPage);
    removeChild(this);
    }

I'm getting this error:

ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
	at flash.display::DisplayObjectContainer/removeChild()
	at Main/onMapButtonClick()

I know I'm meant to put the relevant page inside removeChild"(this)" but the 'mapButton' applies to all pages and there is in total, 36 of them.

Please help.

[dawsonk]

maybe...

var thePage:MovieClip;
function onEssenButtonClick(event:MouseEvent):void {
	if (1==theNumber) {
		thePage=essenPage1;
		addChild(essenPage1);
		removeChild(mapPage);
	}
	if (2==theNumber) {
		thePage=essenPage22;
		addChild(essenPage2);
		removeChild(mapPage);
	}
}
function onLibButtonClick(event:MouseEvent):void {
	if (1==theNumber) {
		thePage=libPage1;
		addChild(libPage1);
		removeChild(mapPage);
	}
	if (2==theNumber) {
		thePage=libPage2;
		addChild(libPage2);
		removeChild(mapPage);
	}
}
function onMapButtonClick(event:MouseEvent):void {
	addChild(mapPage);
	removeChild(thePage);
}

[eightballmark]

It works! Thank you so much