Specifying page range

Question

Ok trying to merge some templates and scripts I have to one export an .indd file would like different options per page(s).
Here's what I currently have, that I would like to change to specify pages 1-13:
var myPageName, myFilePath, myFile;
var myDocument = app.documents.item(0);
var myBaseName = myDocument.name;
for(var myCounter = 0; myCounter < myDocument.pages.length; myCounter++){
myPageName = myDocument.pages.item(myCounter).name;
app.pdfExportPreferences.pageRange = myPageName;
and also have export as:
myFilePath = dirPath + docType + "/" + fileName;
myFile = new File(myFilePath);
myDocument.exportFile(ExportFormat.pdfType, myFile, false);
Here's is another script, that I would like to change to specify pages 14-17:
var myPageName, myFilePath, myFile;
var myDocument = app.documents.item(0);
var myBaseName = myDocument.name;
for(var myCounter = 0; myCounter < myDocument.pages.length; myCounter++){
myPageName = myDocument.pages.item(myCounter).name;
app.jpegExportPreferences.jpegExportRange = ExportRangeOrAllPages.exportRange;
app.jpegExportPreferences.exportResolution = 96;
   app.jpegExportPreferences.pageString = myPageName; 
and also have export as:
myDocument.exportFile(ExportFormat.jpg, File(myFilePath), false);
So how can I specify some pages to export as .pdf and some others to export as .jpg with a dpi. of 96?
Thanks in advance,
Joe

Answer 1

Fixed it here it is:
   app.jpegExportPreferences.pageString = myPageName, "14-17";