Make string of MCs invisible/visible...

Question

I have a map of states state when a particular state is clicked on, the fla centers on and zooms to that state.  When you click on a state a unique ID is pulled from an xml.  Using this ID, I can then call all the counties that are part of this state through the county's xml which is also loaded on my stage.
For example if I click on Arizona, it zooms and I get a trace of all the instance names of the counties within Arizona.
//call all instance names of Arizona counties
cldcnfips=(cntXml.Records.Record.(STATE_FIPS==cldstfips).afips.children());
trace(cldcnfips);
//The trace looks like this
a04001a04003a04005a04007a04009a04011a04012a04013a04015a04017a04019a04021a04023a04025a04027
//where "a" is the first character in each county's instance name
One of my first lines of code makes my counties invisible.
//dont show the counties yet
this.cnt.all_cnt.visible=false;
What I'd like to do is make just the called state's counties visible on zoom.
Since I've created a var which is a string of the counties I am interested in, can I specify that just those counties become visible?  I've tried this code but it does not work
this.cnt.all_cnt[cldcnfips].visible=true
I am worried that the string I am pulling as a reference for those counties (cldcnfips) might not work for calling those instances.
Does anyone have any suggestions or insights?

Answer 1

The only hitch is making all the states visible when i tween over to a new state...
For example.. This code is the final step in my tween.. It scales the parent mc and makes the state invisible..  It is rerun everytime a select a new state.
function zoomhide(){
          cnt.scaleX=scprop;
          cnt.scaleY=scprop;
          cnt.all_sts[calledfips].visible=false;
What code can I use to make all state visible so then when i rerun this function, only the selected state is invisible..
I tried placing
cnt.all_sts.visible=true;
Before zoomhide runs but this does not work..  If you'd like to see the whole function that is powering the zoom, tween and scale, here it is..
function ststwn(e:MouseEvent):void{
     //I tried using this to make everything visible before making the selected state invisible
        this.cnt.all_sts.visible=true;
     var calledfips:String;
     calledfips=stsXml.Records.Record.afips[e.currentTarget.ivar];     
     //create vars for x,y cordinates of clicked county (child)
     var calledx:Number;
     calledx=(cnt.all_sts[calledfips].x);
     var calledy:Number;
     calledy=(cnt.all_sts[calledfips].y);
     var goto:Point=new Point(0-calledx,0-calledy);
     TweenLite.to(cnt.all_sts,.5,{x:goto.x,y:goto.y});
     TweenLite.to(cnt.all_cnt,.5,{x:goto.x,y:goto.y});
     TweenLite.to(cnt.stsout,.5,{x:goto.x,y:goto.y,onComplete:twnn});
     var wprop:Number;
     wprop=stage.stageWidth/cnt.all_sts[calledfips].width;
     var hprop:Number;
     hprop=stage.stageHeight/cnt.all_sts[calledfips].height;
     var cldstfips:Number;
     cldstfips=(stsXml.Records.Record.(afips==calledfips).STATE_FIPS);
     var     cldcnfips;
     cldcnfips=(cntXml.Records.Record.(STATE_FIPS==cldstfips).afips.children());
     cnt.all_sts[calledfips].visible=true;
     function cnnn(){
               cnt.all_sts[calledfips].visible=false;
               if (wprop>hprop){
               var scprop:Number=hprop*.85;
                    } else {
                    var scprop:Number=wprop*.85;
     function twnn(){
          cnt.scaleX=scprop;
          cnt.scaleY=scprop;
          cnt.all_sts[calledfips].visible=false;