JPG resolution and quality

Question

Dear Indesign scripters,
I'm having a very old script what I made for CS2 and still using for CS5.
Now I'm having trouble to give it the option to choose the resolution in a dialog box.
Know I'm typing the resolution manually in the script but I’m wondering if there is a way to do it with a dialog box.
var myDoc = app.documents[0];
app.scriptPreferences.version = "6.0"
if(app.documents.length != 0){  
     var myFolder = Folder.selectDialog ("Choose a Folder");  
     if(myFolder != null){  
          myExportPages(myFolder);  
else{  
     alert("Please open a document and try again.");  
function myExportPages(myFolder){  
     var myDocument = app.activeDocument;  
     var myDocumentName = myDocument.name;  
app.jpegExportPreferences.resolution = 150;
app.jpegExportPreferences.jpegQuality = JPEGOptionsQuality.MAXIMUM;
// JPEGOptionsQuality.LOW, JPEGOptionsQuality.MEDIUM, JPEGOptionsQuality.HIGH, JPEGOptionsQuality.MAXIMUM
app.jpegExportPreferences.jpegExportRange = ExportRangeOrAllPages.exportRange;
app.scriptPreferences.version = "7.0"
app.jpegExportPreferences.jpegColorSpace = JpegColorSpaceEnum.RGB;
app.scriptPreferences.version = "6.0"
app.activeDocument.sections.everyItem().includeSectionPrefix = false;
p = app.activeDocument.pages.everyItem().getElements();
for (i = 0; i < p.length; i++)
f = File (myFolder + "/" + p[i].textFrames.item ('labelcode').contents + ".jpg");
app.jpegExportPreferences.pageString = p[i].name;
app.activeDocument.exportFile (ExportFormat.jpg, f );
alert('Done!');
Already thanks for the help.
Greetings.

Answer 1

Try the below code,
If you want to create UI, Peter Kahrel documentation will be very useful for you.
http://www.kahrel.plus.com/indesign/scriptui.html
var myDoc = app.documents[0];
app.scriptPreferences.version = "6.0"
if(app.documents.length != 0){  
     var myFolder = Folder.selectDialog ("Choose a Folder");  
     if(myFolder != null){  
          myExportPages(myFolder);  
else{  
     alert("Please open a document and try again.");  
function myExportPages(myFolder){  
     var myDocument = app.activeDocument;  
     var myDocumentName = myDocument.name;  
var w = new Window ("dialog", "Resolution Dialog");
var e = w.add ("edittext", undefined, "type your resolution here");
w.layout.layout();
e.active = true;
w.add ("button", undefined, "OK");
w.show();
app.jpegExportPreferences.resolution = Number(e.text);
app.jpegExportPreferences.jpegQuality = JPEGOptionsQuality.MAXIMUM;
// JPEGOptionsQuality.LOW, JPEGOptionsQuality.MEDIUM, JPEGOptionsQuality.HIGH, JPEGOptionsQuality.MAXIMUM
app.jpegExportPreferences.jpegExportRange = ExportRangeOrAllPages.exportRange;
app.scriptPreferences.version = "7.0"
app.jpegExportPreferences.jpegColorSpace = JpegColorSpaceEnum.RGB;
app.scriptPreferences.version = "6.0"
app.activeDocument.sections.everyItem().includeSectionPrefix = false;
p = app.activeDocument.pages.everyItem().getElements();
for (i = 0; i < p.length; i++)
f = File (myFolder + "/" + p[i].textFrames.item ('labelcode').contents + ".jpg");
app.jpegExportPreferences.pageString = p[i].name;
app.activeDocument.exportFile (ExportFormat.jpg, f );
alert('Done!');
Vandy