What would be better for the economy right now -- a stronger or weaker dollar?

Would the U.S. economy be better off if the mighty dollar weren't so mighty?
The dollar has strengthened against most other major currencies for much of the second half of the year. It recently reversed course, but the big picture remains the same: The Thomson Reuters U.S. dollar index, which measures the dollar's value relative to the euro and the Japanese, Canadian, British, Swedish and Swiss currencies, is still up more than 10 percent from its lows in March.

All the while, the economy has been wallowing in a deepening recession.

Does the strong dollar have anything to do with the nation's economic woes? What would be better for the economy right now -- a stronger dollar or a weaker one?