LiveCycle ES3: need 3 fields to match before saving or printing form

Question

Hi!
I have a form that contains different numfields that need to match before the user should be able to save or print the document.
These are the fields that the user have to fill in:
A = Total sum of people (one field) should be equal to the sum of B-H and I-O.
B-H = Seven different fields (in a group) where the sum of all seven fields should be equal to A (and the sum of I-O)
I-O = Seven different fields (in a group) where the sum of all seven fields should be equal to A (and the sum of B-H)
All fields are Numeric Fields and User Entered - Required
When these fields do not match I want a messagebox to popup with that info and when Ok button is pressed it should return to the form again.
If the fields match no messagebox should popup and the document should continue to save (or print).
This means that you can't compare the fields until the user want to save or print the form...
I use Formcalc in Livecycle and I it would be nice if someone can help med with the code!
Thanks in advance!

Answer 1

Yes, you would use completely different code. Here is a simple example that enables two text fields after the text field to which it is attached has a value (isn't blank):
// Validate script for text field
(function () {
    // Get references to the subsequent fields to control
    var f1 = getField("other_text_field1");
    var f2 = getField("other_text_field2");
    // Reset the fields
    f1.value = f1.defaultValue;
    f2.value = f2.defaultValue;
    if (event.value) {  // Show the fields if this field is not blank
        f1.display = display.visible;
        f2.display = display.visible;
    } else {  // Otherwise, hide the fields
        f1.display = display.hidden;
        f2.display = display.hidden;
Note that the script can be simplified if you use a heirarchical naming convention for the subsequent fields. We discussed a similar situation just yesterday at: http://acrobatusers.com/forum/forms-acrobat/set-form-skip-question-depending-answer-anothe r
so you could look there for more information on this approach.