Create a dynamic dropdown field in Adobe Acrobat Pro XI

Question

Hello all. I am trying to create a field in one of my forms using Adobe Acrobat Pro XI. I have a dropdown list of "main" items, and based on what is selected in that list, I want a second dropdown list to give different choices. I have searched and searched and have javascript that I thought might work, but maybe I am have a mistake or I am placing the javascript in the wrong place, becasue it is not working. I know very, very little about javascript, so any help would be so much appreciated.
I am using Adobe Acrobat Pro XI. I added a "new field", and selected "dropdown". The field name is ProvType. The dropdown options are:
     Inpatient
     Outpatient
     Physician
I have the "Commit selected value immediately" selected.The field is not validated. The format is "none." There are no actions or calculations associated with it.
I then created another dropbox, and named it SubProvType. Under Actions, I selected the trigger as Mouse Up, and then selected the Action "Run a JavaScript." I selected the add button, and typed this in the JavaScript editor:
switch (ProvType.rawValue)
    case "Inpatient":
        this.setItems("Hospice,Hospital,Nursing Facility");
        break;
    case "Outpatient":
        this.setItems("Adult Day Center,Home,Other");
        break;    
    case "Physician":
        this.setItems("Surgeon,Family Practice,Neurologist");
        break;    
What I want to happen is:
If "Inpatient" is selected, I want the following options to be available in the second dropdown box "SubProvType":
     Hospice
     Hospital
     Nursing Facility
If "Outpatient" is selected, I want the following options to be available in the second dropdown box "SubProvType":
     Adult Day Center
     Home
     Other
If "Physician" is selected, I want the following options to be available in the second dropdown box "SubProvType":
     Surgeon
     Family Practice
     Neurologist
However.... when I close the form editing and try to select a different option in the ProvType field, the SubProvType field remains blank and there are no options available. There are also no errors.
I must be missing something, but I have no idea where to start. Thank you in advance for any help anyone can provide.

Answer 1

dbettis2.... Please understand that everything I am about to tell you is ONLY thanks to the help I received from Gilad D. I don't know if this will help you or not, but I want to try and pass it forward.
If what you are looking to do is have two dropdown fields, and the second one (concentration) be a list determined by what was chosen in the first one (newMajor) then this will work, if you are using Adobe Acrobat Pro.
Create a dropdown field and name it newMajor. In the "options" tab. Make sure that you enter all of the items that you want in that list AND that they match the javascript (or this will not work.)
In this case, I believe you want the initial list to be:
- Select One -
BA - Communication (BACOMM)
BA - History (BAHIST)
BBA - Business Administration (BBA-BADM)
After you create the dropdown field and enter all of the options, go to the Validate tab, chose "run custom validation script", then copy and paste the following:
switch (event.value) {
    case "- Select One -":
        this.getField("Concentration").setItems(["-----"]);
        break;
    case "BA - Communication (BACOMM)":
        this.getField("Concentration").setItems(["- Select One -","None","Mass Communication (MCO1)","Theatre (THEA)","Communication Studies (MC02)"]);
        break;
    case "BA - History (BAHIST)":
        this.getField("Concentration").setItems(["- Select One -","None","Teacher Certification (HIS1)"]);
        break;
    case "BBA - Business Administration (BBA-BADM)":
        this.getField("Concentration").setItems(["- Select One -","None","Supply Chain Management (SCM)","Hospitality Management (HSMG)"]);
        break;
Then create a second dropdown field, and name it Concentration. Nothing further needs to be done with the second dropdown field (as far as entering options or any javascript.)
It should work. I have created a form using this code and field structure, and it is working. I hope this helps you, if in fact this is what you were trying to do. (I do not know how to attach a file to this post or I would send you the PDF that I made so you could see the fields. If you message me, I can send it to you.)