High Pass Dialog Textbook Exercise

Question

I purchased the Power, Speed and Automatitation textbook to learn Photoshop Scripting. I am working through the exercises in the last chapeter Building Custom Dialogs and have stumbled on the last exercise building a High Pass Dialog. When I test the script ai get a time run error which I am not able to track down. Can someone please look at the script and let me know where the error is coming from.
Many thanks,
//highPassDialog.jsx
//021514
Description:
This dialog gathers data for creating a High Pass layer,
which can shapern or blur a docuemnt.
This dialog shows the use of many differnt types of UI controls
Algorithm:
Stage #1 build the dialog
    Create helloWorldDialog() function
        Place the dialog where it will be displayed
        Add UI elemtnst to function
        Add a group box panel for formating the buttons in a row
        Add On and Cancel buttons
    Create initHelloWorldDialog() function
        Initalize buttons OK and Cancel
        Add Events to OK and Cancel buttons
Hook up the dialog to respond to events (add to SET UP)
Stage #2 display the dialog
    Create runHelloWorldDialog() function
Stage #3 process the results
    processHelloWorldResults() function
    show alert()
Script Installation:
1.Mac place script in Applications/Adobe Photoshop CC/Presets/Scripts
2.Windows place script in C:\Program Files\Adobe\Adobe Photoshop CC#\Presets\Scripts\
3.Restart Photoshop
4.Choose File > Scripts > template
// SET UP
//Enable double clicking from hte Macintosh Finder or Windows  Explorer
#target photoshop
//Make Photoshop the formost Appplication
app.bringToFront();
//** DIALOG STAGE #1 - build the dilaog **
//Create the dialog object and its UI objects
var theDialog = createHighPassDialog();
//Hook up the dialog to respond to events
initHighPassDialog (theDialog);
// MAIN
//** DIALOG STAGE #2 - display the dialog **
if (runHighPassDialog(theDialog) == 1) {
    //User pressed OK
    //** DIALOG STAGE #3 - process the dialog results **
    processHighPassResults(theDialog);
// FUNCTIONS
//Create a dialog for creating the High Pass Layer
function createHighPassDialog() {
        //Create and empty dialog window
        var myDialog = new Window ('dialog',"Create a High Pass Layer");
        //Place the dialog 100px from the left and 100px from the top
        myDialog.frameLocation = [100, 100];
        myDialog.orientation = "row"; 
        myDialog.alignChildren = "top";   
        //Add a group box for the new layer options
        myDialog.optionsPanel = myDialog.add('panel', undefined, "Options");
        myDialog.optionsPanel.orientation = "column";
        myDialog.optionsPanel.alignChildren = "left";
        //Add radio buttons groups fro sharpen vs blur choice
        myDialog.optionsPanel.choiceRadioButtons = myDialog.optionsPanel.add('group');
        myDialog.optionsPanel.choiceRadioButtons.orientation = "row";
        myDialog.optionsPanel.choiceRadioButtons.alignChildren = "top";
        //Add text for user instructiuons
        myDialog.optionsPanel.choiceRadioButtons.staticText =
        myDialog.optionsPanel.choiceRadioButtons.add('statictext', undefined, "Select operation to perform");
        //Crate gropup to align radio buttons
        myDialog.optionsPanel.choiceRadioButtons.radioGroup =
        myDialog.optionsPanel.choiceRadioButtons.add('group');
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.orientation = "column";
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.alignChildren = "left";
        //Add a radio button with a label of Sharpen
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.radioButtonSharpen =
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.add('radiobutton', undefined, "Sharpen");
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.radioButtonSharpen.value = true;
        //Add a radio buon with the label of blur
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.radioButtonBlur =
        myDialog.optionsPanel.choiceRadioButtons.radioGroup.add('radiobutton', undefined, "Blur");
        //Add tool tip with descriptiond for instructions
        myDialog.optionsPanel.choiceRadioButtons.helpTip = "Choose which operation to perform";
        //Add a group for the radius parameter
        myDialog.optionsPanel.radiusGroup = myDialog.optionsPanel.add('group');
        myDialog.optionsPanel.radiusGroup.orientation = "row";
        //Add a text for the radius descriptions
        myDialog.optionsPanel.radiusGroup.staticText =
        myDialog.optionsPanel.radiusGroup.add ('statictext', undefined, "Radius");
        //Add edittext field to display radius value
        myDialog.optionsPanel.radiusGroup.editText =
        myDialog.optionsPanel.radiusGroup.add ('edittext', undefined, "3.0");
        myDialog.optionsPanel.radiusGroup.editText.preferredSize = [60, 20];
        //Add label for units after the edittext field
        myDialog.optionsPanel.radiusGroup.percent =
        myDialog.optionsPanel.radiusGroup.add ('statictext', undefined, "pixels");
        //Add the slider control
        myDialog.optionsPanel.slider = myDialog.optionsPanel.add('slider');
        myDialog.optionsPanel.slider.minvalue = 0.1;
        myDialog.optionsPanel.slider.maxvalue = 3.0;
        myDialog.optionsPanel.slider.preferredSize = [160, 20];
        //Add tooltips for the slider
        myDialog.optionsPanel.radiusGroup.editText.helpTip = "The radius value of the filter applied.";
        myDialog.optionsPanel.slider.helpTip = "The radius value of the filter applied.";
        //----------part 2---------
        //Add a popup menu       
        myDialog.optionsPanel.blendPopup.popUp.add ('item', "Vivid Light");
        myDialog.optionsPanel.blendPopup.popUp.add ('item', "Linear Light");
        myDialog.optionsPanel.blendPopup.popUp.add ('item', "Pin Light");
        //Set the default selected item in the popup list to the first tiem in the array "Overlay"
        myDialog.optionsPanel.blendPopup.items[0].selected = true;
        //Set the value of the blend mode
        myDialog.optionsPanel.blendPopup.popUp.mode = myDialog.optionsPanel.blendPopup.popUp.items[0];
        //----------end part 2----------
        //----------part 4 -------------
        //Add a checkbox for flattening image when done
        myDialog.optionsPanel.flattenBox = myDialog.optionsPanel.add('checkbox', undefined, "Flatten when finished");   
        myDialog.optionsPanel.falttenBox.value = false;
        myDialog.optionsPanel.falttenBox.helpTip =
        "Check yo flatten the layers when processing completed";
        //----------end part 4 -------------
        //DEFAULT OK cancel buttons
        //Add a group box for the OK and Cancel buttons   
        myDialog.buttonPanel = myDialog.add ('group');
        mydialog.buttonPanel.orientation = "column";
        //Add an OK button
        myDialog.buttonPanel.okButton = myDialog.
        buttonPanel.add('button', undefined, "OK");
        //Add a cancel button
        myDialog.buttonPanel.cancelButton = myDialog.
        buttonPanel.add('button', undefined, "Cancel");
        return myDialog;
//Initialize a High Pass dialog to activate buttons
function initHighPassDialog(myDialog) {
        with (myDialog) {           
            //Set the edittext field's value to the slider's value if the slider chages
            optionsPanel.slider.onChanging = function() {
                optionsPanel.radiusgroup.editText.text =optionsPanel.slider.value;
            //Add a group for the blend mode pop UI elements
            myDialog.optionsPanel.blendPopup = myDialog.optionsPanel.add('group');
            myDialog.optionsPanel.blendPopup.orientation = "row";
            //Add popup to select the blendmode
            myDialog.optionsPanel.blendPopup.popup = myDialog.optionsPanel.blendingPopup.add('dropdownlist');
            myDialog.optionsPanel.blendPopup.popup.text = "Select the blending mode";
            myDialog.optionsPanel.blendPopup.helpTip = "Choose the blending mode";
            //Populate the popup with items
            myDialog.optionsPanel.blendPopup.popUp.add ('item', "Overlay");
            myDialog.optionsPanel.blendPopup.popUp.add ('item', "Soft Light");
            myDialog.optionsPanel.blendPopup.popUp.add ('item', "Hard Light");
            //Set the slider's value to the edittext field's value if the edittext changes
            optionsPanel.rediudGroup.editText.onChange = function() {
                optionsPenel.slider.value = optionsPanel.radiusGroup.editText.text;              
            //--------------part 3--------------
            //Set the behavior for the blend menu
            optionsPanel.blendPopup.popUp.onChange = function() {
                    //Capture any changes the user makes after the dialog is dispalyed,
                    //updating the value of the variable for the blend mode
                    optionsPanel.blendPopup.popUp.mode = optionsPanel.blendPopup.popUp.itemd[this.selection.index];
            //--------------end part 3----------
            //DEFAULT Cancel and OK buttons
            //OK button clicked
            buttonPanel.okButton.onCLick = function() {
                 //Check that the radius value makes sense (that itis a number)
                var radiusValueStr = isNaN(myDialog.optionsPanel.radiusgroup.editText.text);
                //Data validation
                if (radiusValueStr ==  true) {
                        alert("Please enter a valid number 0.1 - 250 for 'Radius'");
                        return;
                //If  it is a number, makesure it's between 0.1 - 250 and warn hte user if it isn't
                if (!(my.Dialog.optionsPanel.radiusGroup.editText.text >= 0.1 &&
                myDialog.optionsPanel.radiusGroup.editText.text <= 250)) {
                        alert ("You must enter a number between 0.1 - 250 for 'Radious'");
                        return;
                //Close the dialog - OK clicked
                close(1);
            //Cancel button clicked
            buttonPanel.cancelButton.onCLick = function() {
                 //Close the dialog - Cancel clicked
                 close (2);
//Show the dialog and wait for its return value
function runHighPassDialog(myDialog) {
     //Display the dialog
     return myDialog.show();
//Process the dialog results by showing a message to the user
function processHighPassResults(myDialog){
    //Be sure there is an open document
    if (app.document.length > 0) {
            //Get user choices from the dialog
            var radius = myDialog.optionsPanel.slider.value;
            var blsSharpen = myDialog.optionsPanel.choiceRadioButtons.radioGroup.radioButtonSharpen.value;
            var bFaltten = myDialog.optionsPanel.flattenBox.value;
            //figure out the blend mode constant
            var userChoice = myDialog.optionsPanel.blendPopup.popUp.selection.index;
            var blendMode = BelndMode.OVERLAY;
            if (userChoice == 1)
                    blendMode = BlendMode.SOFTLIGHT;
            else if (userChocie == 2)
                    blendeMode = BlendMode.HARDLIGHT;
            else if (userChocie == 3)
                    blendeMode = BlendMode.VIVIDLIGHT;       
            else if (userChocie == 4)
                    blendeMode = BlendMode.LINEARLIGHT;
            else if (userChocie == 5)
                    blendeMode = BlendMode.PINLIGHT;
            //Run the operation on the activeDocument
            HighPassOperation(app.activeDocument, radius, blenMode, blSharpen, bFlatten);       
    else {
            alert("This dialog requires a docuemnt to be open to run successfully!");

Answer 1

What happens when you hit esc?
What happens when you hit enter?
Have you restored the Preferences yet?
http://blogs.adobe.com/crawlspace/2012/07/photoshop-basic-troubleshooting-steps-to-fix-mos t-issues.html