Reebok Posts Higher Earnings, Stock Up  NEW YORK (Reuters) - Athletic shoe and apparel maker Reebok  International Ltd. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=RBK.N target=/stocks/quickinfo/fullquote"&gt;RBK.N&lt;/A&gt; on Thursday posted  better-than-expected quarterly earnings on an acquisition and  the weak dollar, sending its shares up more than 3 percent.