The breakBefore object describes the conditional
constraints for moving to a new page or content area before laying
down the parent container. The breakBefore object is invoked before
laying out the parent subform. The leaders and trailers are laid
down before and after any jump that the breakBefore object mandates.
An optional script object
associated with the breakBefore object determines
whether it is respected. This script object defaults
to the true condition, which means that breakBefore objects
with no script object are always invoked.