Have you checked the interest rates on your credit cards lately? Odds are they're going way up.That's because credit-card companies are rushing to raise rates and tack on extra fees ahead of a law slated to take effect Feb. 22 that is supposed to limit such moves in the future. In some cases, rates are doubling to as high as 30 percent or more, even for people who pay their bills on time.The current maneuvering by the card companies is serving up another blow to American consumers who are already struggling with their finances. U.S. lawmakers let that happen by giving the card companies nine months to prepare for the rules. ...AP