Script to Rename Bracketed Photos

I think I managed to scrap together a working script.

I found a script from Muppet Mark here:

http://forums.adobe.com/message/5630065#5630065

that I reworked into the following. I have not tested it thoroughly but it initially looks like it is working. I do not know how to code so there very well could be some inherent problems in this script. All I need to do is figure out how to add the leading zeros to the final file names.

If anyone has any input and/or thoughts it would be appreciated.

Thanks.

#target bridge
#engine main
if ( BridgeTalk.appName == 'bridge' ) {
          var toolMenu = MenuElement.find( 'Tools' ), 
  
          customRename = new MenuElement( 'command', 'Custom Rename', '-at the end of toolMenu', 'cflass' );
};
customRename.onSelect = function () { renameFiles(); }
function renameFiles() {
  
          if ( app.documents.length == 0 ) { return; }
  
          var i, count, doc, file, newName, scene, bracket, k, oldname, ext;
  
          doc = app.document;
  
          count  = doc.visibleThumbnailsLength;
  
                              for ( i = 0; i < count; i++ ) {
                if ( doc.visibleThumbnails.type == 'file' ) {
  
                                                  for (k = 0; k<3; k++ ) {
  
                                                  scene = Math.ceil(i/3);
  
                                                  oldName = decodeURI( doc.visibleThumbnails[i + k].name );
  
                                                  ext = oldName.replace( /^.*\./,'' );
  
                                                  bracket = k + 1;
  
                                                  newName = scene + '-' + bracket;
  
                                                  if ( ext != '' ) { newName += '.' + ext; }
  
                    file = doc.visibleThumbnails[i + k].spec;
  
                                                  file.rename( newName );
  
                                                  }
  
                                        };
  
                              };
  
          };