document.write('<ul>\n');
document.write('<li>2010\n');
document.write('<ul>\n');
document.write('<li><a href="http://www.omega-box.com/sb.cgi?month=201005">May 2010</a> (1)</li>\n');
document.write('</ul>\n');
document.write('</li>\n');
document.write('<li><a href="http://www.omega-box.com/sb.cgi?month=200907">2009</a> (2)</li>\n');
document.write('<li><a href="http://www.omega-box.com/sb.cgi?month=200811">2008</a> (5)</li>\n');
document.write('<li><a href="http://www.omega-box.com/sb.cgi?month=200710">2007</a> (6)</li>\n');
document.write('<li><a href="http://www.omega-box.com/sb.cgi?month=200612">2006</a> (6)</li>\n');
document.write('</ul>\n');