The money market can be crazy at times, but this week, the U.S. dollar officially took a trip to the loonie bin.For the first time in more than 30 years, the American dollar dipped in world markets to trade at par and even slightly below the Canadian dollar.I grew up in Canada, and the last time the dollars were equal was in 1976.For most of 2007, the Canadian and U.S. dollars have been close,
