I'm not sure who's dollar you mean, American or Canadian. There is a temporary blip for the American dollar right now, but don't expect it to last. Canada, being a major world producer of oil, will fair better than the US in the long run.
Don’t get too worried about temporary market fluctuations. In the long term (and maybe short term) the dollar is going to go way down. Here’s a snippet from about.com This is a good article:
“No matter how you measure it, the dollar is losing value over the long-term. Here's why:
1. The U.S. debt is over $14 trillion. Foreign holders of this debt are concerned that the U.S. will let the dollar value decline so the relative value of its debt is less.
2. The large debt could force the U.S. to raise taxes to pay it off, which would slow economic growth.
3. As more countries join or trade with the European Union, demand for the euro increases.
4. Foreign investors are diversifying their portfolios with more non-dollar denominated assets.
5. As the dollar loses value, investors are less likely to hold assets in dollars as they wait for the decline to stop.”
You can read the entire article at: