I am kind of an amateur. I have really only been using Livecycle for about a month and a half but this forum has been invaluable so I figured I should contribute back as best I can.
Ok so your issue is that you want Fields B and C to show value 0 if Field a's value is less than 10.
Using javascript use an if command.
place a code similar to the one below on the exit event of field A.
(
if Text.Field.A.rawValue < 10;
then
Text.FIeld.B.rawValue == 0;
Text.FIeld.B.rawValue == 0;
endif
)
please excuse any scripting mistakes. Normally, if I were writing a code like this, it would take several attempts to get everything just right. As I said before, I am an amateur but I hope to get you on the right path.