MtGox supports multiple currencies. Usually referred to as f.e. mtgoxUSD, mtgoxEUR, ...
Now, MtGox has different market depth listings for it's different markets and keeps a separate price for them.
Are these markets completely separated, meaning that when I place a buying order in euros, it can only be matched with selling orders in euro? This would also mean that less popular markets inside MtGox, which have less average volume, can have the same delay effects as less volumous non-MtGox markets in let's say US dollars?
So, is it possible that I buy bitcoins with euros and that someone else receives dollars for the coins I bought?