Are you aware of any sources where I can view the javascript code for such a loop? Got some books on Javascript but they all relate to web scripting - have not seen any that relate to LiveCycle/Acrobat.

I have a LiveCycle Form with a repeating subform where the first field (text field 2 characters) requires the input of a code between 01 and 99. Can you  script so that you cannot enter the same code value more than once?