The famous greasy spoon happening behind the velvet curtain at the Parker Meridien hotel turns double digits month. So, first, where does all the time go? Our little hamburger is all grown up! Next Monday, Burger Joint will roll back its menu to 2002 prices for one day only. Come for the $4 burgers and stay for the $4.50 cheeseburgers! Tap beer will be $2, and the not-so-secret restaurant will hand out T-shirts to commemorate the day. [Midtown Lunch]