How to create conditional drop-down lists

Question

I would like to create a form that utilizes conditional drop-down selection boxes like at http://blogs.office.com/b/microsoft-excel/archive/2009/11/24/create-conditional-drop-down- lists.aspx
How can I create a form that contains fields like this?
Is there a sample I can download?

Answer 1

I have downloaded the AcroForm version (ListProgramming_Part1_AcroForm.pdf).
I'm not able to consistently recreate.  I was first playing with the form by selecting values in the drop down.  At one point I went to Document Javascripts and select "Example1".  I chose to edit.  Make no changes and select "OK" I get "SyntaxError: missing } in compound statement 39 at line 40"
The sec ion of code is:
function SetPartEntries()
   // Only run this code on when the selection is commited.  
   if(event.willCommit)
      // There are 3 rows in the order form so in order to use other fields in 
      // the same row we first have to acquire the name of the row
      // we are operating on.  This is part of the List field's name, so we 
      // just have to split it off 
      var cRowName = event.target.name.split(".").shift();
      // Now get the new parts list from the Master List
      // Since the selection is being committed, event.value contains the selection text
      var lst = oAssemblyParts[event.value];
      // If an entry is selected that we don't have a parts list for, then
      // the parts list is just cleared. 
      if( (lst != null) && (lst.length > 0) )
         this.getField(cRowName + ".PartSelect").setItems(lst);
      else
         this.getField(cRowName + ".PartSelect").clearItems();
      // We have a new parts lists and the first entry is 
      // is a non-selection.  so clear the price field.
      this.getField(cRowName + ".Price").value = 0;
I am not able to recreate if I select "Edit all Javascripts" only when I use document javascripts.