Ponder was probably thinking of street hockey or something lol.
The offsides we use are slightly different than ice hockey offsides however. I believe it's called the floating red line or something along those lines.
Yeah that damn floating red line screwed my team up so much in our first year. We'd stand around hollering for an offside that didn't come...we learned quick though lol
Some leagues also have weird icing rules (you can shoot it from your own blue line sometimes) and the refs have a tendency to let the clock run instead of calling game stoppages such as icing and offsides.