So install one:<p><a href="http://www.winsplit-revolution.com/" rel="nofollow">http://www.winsplit-revolution.com/</a><p><a href="http://jgpaiva.dcmembers.com/gridmove.html" rel="nofollow">http://jgpaiva.dcmembers.com/gridmove.html</a><p>As described with screenshots/animation here: <a href="http://www.codinghorror.com/blog/archives/000928.html" rel="nofollow">http://www.codinghorror.com/blog/archives/000928.html</a>