document.write('<ul>\n');
document.write('<li>2012\n');
document.write('<ul>\n');
document.write('<li><a href="http://ko-yubi.com/sb.cgi?month=201201">January 2012</a> (1)</li>\n');
document.write('</ul>\n');
document.write('</li>\n');
document.write('<li><a href="http://ko-yubi.com/sb.cgi?month=201112">2011</a> (44)</li>\n');
document.write('<li><a href="http://ko-yubi.com/sb.cgi?month=201008">2010</a> (23)</li>\n');
document.write('<li><a href="http://ko-yubi.com/sb.cgi?month=200911">2009</a> (27)</li>\n');
document.write('</ul>\n');