Script works Great, Pro-Tips appreciated.

Question

This script is used to make a few changes that SOME of our die suppliers require. It works great. If you have a little time to look it over and give me some advice on best practices, consiseness etc. it would be greatly appreciated.
Note: The files this script is aimed at are fairly civilized, and don't vary much so I didn't have to buld in room for varience. For example, the die lines will ALWAYS be a spot color, so I didn't need to include anything for RGB or CMYK.
// script.name = prepDieFile.js;
// script.description = removes unnecessary layers, vectors, and text. Leaves cross-mark line unpainted. Colors all remaining text and strokes black;
// script.requirements = an opened document;
// script.parent = elDudereno // 10/10/13;
// script.elegant = false;
#target Illustrator
var idoc = app.activeDocument;
var pi = idoc.pathItems;
var tf = idoc.textFrames;
var deletedLayers = 0;
var deletedPaths = 0;
var spotStroke = 0;
var deletedText = 0;
var blackedText = 0;
var layerCount = idoc.layers.length;
//loop through all layers deleting hidden layers. Loop from the back, to preserve index of remaining layers when we remove one.
for (var i = layerCount - 1; i >= 0; i--) {
          var thisLayer = idoc.layers[i];
          if (thisLayer.visible == false || thisLayer.locked == true) {
                    thisLayer.visible = true;
                    thisLayer.locked = false;
                    thisLayer.remove();
                    deletedLayers++;
unlockPaths();
//locate largest path item (bounding box) and lock it.
var theBiggest = pi[0];
for (i=1; i<pi.length; i++) {
          if (Math.abs(pi[i].area) > Math.abs(theBiggest.area)) {
                    theBiggest = pi[i];
theBiggest.remove();
deletedLayers++;
//locate second largest path (cross-mark size) remove stroke and lock
var secondBiggest = pi[0];
for (j=1; j<pi.length; j++) {
          if (Math.abs(pi[j].area) > Math.abs(secondBiggest.area)) {
                    secondBiggest = pi[j];
secondBiggest.strokeColor = NoColor;
secondBiggest.fillColor = NoColor;
secondBiggest.locked = true;
// loop through path items delete if hidden, registration, or un-stroked. Change all non-registration spot colors to 100% GrayColor.
for (var j=pi.length -1; j >= 0; j--) {
          var ipath = pi[j];
          if (ipath.hidden==true) {
                    ipath.remove();
                    deletedPaths++;
          if (ipath.locked==false) {
                    var strokeColor = ipath.strokeColor;
                    if (strokeColor.typename == "NoColor"){
                              ipath.remove();
                              deletedPaths++;
                    else if (strokeColor.typename == "SpotColor"){
                              if (strokeColor.spot.name == "[Registration]"){
                                        ipath.remove();
                                        deletedPaths++;
                              } else {
                                        ipath.strokeColor = GrayColor;
                                        ipath.strokeColor.gray = 100.0;
                                        spotStroke++;
unlockPaths();
// delete text frames with first letter set to registration. Turn all other text to black.
for (t=tf.length -1; t>=0; t--) {
          var iTxtFrm = tf[t];
          var firstLtr = iTxtFrm.characters[0];
          if (firstLtr.characterAttributes.fillColor.spot.name == "[Registration]"){
                    iTxtFrm.remove();
                    deletedText++;
          else {
                    var chars = iTxtFrm.characters;
                    for (var c=0; c<chars.length; c++) {
                              var ltr = chars[c];
                              ltr.characterAttributes.fillColor = GrayColor;
                              ltr.characterAttributes.fillColor.gray = 100.0;
                              blackedText++;
redraw();
alert(deletedLayers + " hidden or locked layer(s), " + deletedPaths + " path(s) & " + deletedText + " text frames, were deleted.  " + blackedText + " letters, & " + spotStroke + " stroke(s) were converted to 100% K.");
//unlock all path items
function unlockPaths(){
          for (var k=0; k<pi.length; k++){
                    var lpath = pi[k];
                    if (lpath.locked == true){
                              lpath.locked = false;
Thanks for taking a look.
http://www.filedropper.com/0388701die <-sample file.

Answer 1

I recently updated this to delete all but one artboard and make the remaining artboard the same size as the object with the largest area.
// script.name = prepDieFile.js;
// script.description = removes unnecessary layers, vectors, and text. Leaves cross-mark line unpainted. Colors all remaining text and strokes black;
// script.requirements = an opened document;
// script.parent = elDudereno // 10/10/13;
// script.elegant = false;
#target Illustrator
var idoc = app.activeDocument;
var pi = idoc.pathItems;
var tf = idoc.textFrames;
var deletedLayers = 0;
var deletedPaths = 0;
var spotStroke = 0;
var deletedText = 0;
var blackedText = 0;
var deletedBoards = 0;
var boardCount = idoc.artboards.length;
//loop through all artboards deleting all but the first.
for (var i = boardCount - 1; i >= 1; i--) {
  var thisBoard = idoc.artboards[i];
  thisBoard.remove();
  deletedBoards++;
var layerCount = idoc.layers.length;
//loop through all layers deleting hidden layers. Loop from the back, to preserve index of remaining layers when we remove one.
for (var i = layerCount - 1; i >= 0; i--) {
  var thisLayer = idoc.layers[i];
  if (thisLayer.visible == false || thisLayer.locked == true) {
  thisLayer.visible = true;
  thisLayer.locked = false;
  thisLayer.remove();
  deletedLayers++;
unlockPaths();
//locate largest path item (bounding box) set artboard to that size and remove path.
var theBiggest = pi[0];
for (i=1; i<pi.length; i++) {
  if (Math.abs(pi[i].area) > Math.abs(theBiggest.area)) {
  theBiggest = pi[i];
idoc.artboards[0].artboardRect=theBiggest.geometricBounds;
theBiggest.remove();
deletedLayers++;
//locate second largest path (cross-mark size) remove stroke and lock
var secondBiggest = pi[0];
for (j=1; j<pi.length; j++) {
  if (Math.abs(pi[j].area) > Math.abs(secondBiggest.area)) {
  secondBiggest = pi[j];
secondBiggest.strokeColor = NoColor;
secondBiggest.fillColor = NoColor;
secondBiggest.locked = true;
// loop through path items delete if hidden, registration, or un-stroked. Change all non-registration spot colors to 100% GrayColor.
for (var j=pi.length -1; j >= 0; j--) {
  var ipath = pi[j];
  if (ipath.hidden==true) {
  ipath.remove();
  deletedPaths++;
  if (ipath.locked==false) {
  var strokeColor = ipath.strokeColor;
  if (strokeColor.typename == "NoColor"){
  ipath.remove();
  deletedPaths++;
  else if (strokeColor.typename == "SpotColor"){
  if (strokeColor.spot.name == "[Registration]"){
  ipath.remove();
  deletedPaths++;
  } else {
  ipath.strokeColor = GrayColor;
  ipath.strokeColor.gray = 100.0;
  spotStroke++;
unlockPaths();
// delete text frames with first letter set to registration. Turn all other text to black.
for (t=tf.length -1; t>=0; t--) {
  var iTxtFrm = tf[t];
  var firstLtr = iTxtFrm.characters[0];
  if (firstLtr.characterAttributes.fillColor.spot.name == "[Registration]"){
  iTxtFrm.remove();
  deletedText++;
  else {
  var chars = iTxtFrm.characters;
  for (var c=0; c<chars.length; c++) {
  var ltr = chars[c];
  ltr.characterAttributes.fillColor = GrayColor;
  ltr.characterAttributes.fillColor.gray = 100.0;
  blackedText++;
redraw();
alert(deletedBoards + " art board(s), " + deletedLayers + " hidden or locked layer(s), " + deletedPaths + " path(s) & " + deletedText + " text frames, were deleted.  " + blackedText + " letters, & " + spotStroke + " stroke(s) were converted to 100% K.");
//unlock all path items
function unlockPaths(){
  for (var k=0; k<pi.length; k++){
  var lpath = pi[k];
  if (lpath.locked == true){
  lpath.locked = false;
Credit to @Tom_Friedman for post 13 in this thread Re: Resize Artboard