"Short Gyms" Division Line is still Division Line?

[rockyroad]

My son's team plays against a school that has this situation. Their court has three lines - the "normal" center court line for the center circle jump ball and subsequent quarter throw-ins, and then two other lines about 5 feet on either side of that. To get into the frontcourt, you have to cross the extra line closest to your basket (not the center line), and then to have an over and back violation, you have to cross the line farthest from your basket.

Kind of weird the first few times we played there, but now everyone knows and it's no big deal.