CS4 Actions change "Show Current Layer, Toggle With Others" MIA

Question

Greetings forumers,
I have been using Photoshop for years as a hobby and professionally. My employer recently upgraded our Mac Pro Quad-Core Intel Xeon computers to Photoshop CS4. The transition has been mostly painless accept for all the changes to the keyboard shortcuts (I'll live).
Recently we have come across an issue with one of our customer's workflows that we have not been able to get by using CS4. Or customer has a workflow that we must work within in order to provide them with the artwork files in a way they can use for other processes. The main parts of this workflow involve layer structure and a set of actions that they have been using since Photoshop 7. Our customer uses Photoshop CS3.
With the transition to Photoshop CS4 in our shop, one line of their action does not function in CS4.
Show Current Layer
Toggle With Others
What needs to happen is at the end of the action all layers need to be turned visible. In CS3, in the layer palette, by Control & Clicking the eye and selecting "Show/Hide all other layers" produced the recorded action 'Show Current Layer, Toggle With Others'. The names of the layers are not recorded. This is good because the action will work on any layer no matter what the name of the layer is. In essence all layers are made visible.
In CS4 performing the same above clicks produces a recorded action 'Show , ...' The diference is that in CS4 the action is recording the name of every layer that it is showing/hiding. Simply change the name of one of your layers and running the action again produces a verbose error box.
So any thoughts on how to make visible all layers in a document using an action that will work on any layered file?
We are constructing our files in CS4 and opening them in CS3 to run the action for our customer as a work around. Or we are manually toggling the visibility, but what fun is that when it used to be automatable?
Any help would be greatly appreciated.

Answer 1

You could try this script (CS4 only) to make all layers/groups visible. If it works for you, you could then call it as part of your action.
selectAllLayers();
var sl = getSelectedLayersIdx();
var sLayers = new Array();
for( var i = 0; i < sl.length; i++ ){
   makeActiveByIndex( [ sl[ i ] ], false );
   sLayers.push( activeDocument.activeLayer.name );
ShowAllLayers(sLayers);
function ShowAllLayers(layerNames) {
    var desc = new ActionDescriptor();
        var list = new ActionList();
            var ref = new ActionReference();
   for(var a in layerNames){
            ref.putName( charIDToTypeID('Lyr '), layerNames[a] );
   $.writeln(layerNames[a] );
        list.putReference( ref );
    desc.putList( charIDToTypeID('null'), list );
    executeAction( charIDToTypeID('Shw '), desc, DialogModes.NO );
function selectAllLayers(){ 
   var desc = new ActionDescriptor();
        var ref = new ActionReference();
        ref.putEnumerated( charIDToTypeID( "Lyr " ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Trgt" ) );
    desc.putReference( charIDToTypeID( "null" ), ref );
executeAction( stringIDToTypeID( "selectAllLayers" ), desc, DialogModes.NO );
   function getSelectedLayersIdx(){
      var selectedLayers = new Array;
      var ref = new ActionReference();
      ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
      var desc = executeActionGet(ref);
      if( desc.hasKey( stringIDToTypeID( 'targetLayers' ) ) ){
         desc = desc.getList( stringIDToTypeID( 'targetLayers' ));
          var c = desc.count
          var selectedLayers = new Array();
          for(var i=0;i<c;i++){
            try{
               activeDocument.backgroundLayer;
               selectedLayers.push(  desc.getReference( i ).getIndex() );
            }catch(e){
               selectedLayers.push(  desc.getReference( i ).getIndex()+1 );
       }else{
         var ref = new ActionReference();
         ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID( "ItmI" ));
         ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
         try{
            activeDocument.backgroundLayer;
            selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" ))-1);
         }catch(e){
            selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" )));
      return selectedLayers;
function makeActiveByIndex( idx, visible ){
   for( var i = 0; i < idx.length; i++ ){
      var desc = new ActionDescriptor();
      var ref = new ActionReference();
      ref.putIndex(charIDToTypeID( "Lyr " ), idx[i])
      desc.putReference( charIDToTypeID( "null" ), ref );
      if( i > 0 ) {
         var idselectionModifier = stringIDToTypeID( "selectionModifier" );
         var idselectionModifierType = stringIDToTypeID( "selectionModifierType" );
         var idaddToSelection = stringIDToTypeID( "addToSelection" );
         desc.putEnumerated( idselectionModifier, idselectionModifierType, idaddToSelection );
      desc.putBoolean( charIDToTypeID( "MkVs" ), visible );
      executeAction( charIDToTypeID( "slct" ), desc, DialogModes.NO );