function makeMenu() {
  if (!document.all) {
    return;
  }
  var str1 = '<a href="http://po6.nsk.ne.jp/~snget/index.htm">Top</a>　<a href="http://po6.nsk.ne.jp/~snget/security/security_index.htm">security</a>　<a href="http://po6.nsk.ne.jp/~snget/ai/ai_index.htm">ai</a>　<a href="http://po6.nsk.ne.jp/~snget/flash/flash_index.htm">flash</a>　<a href="http://po6.nsk.ne.jp/~snget/mobile/mobile_index.htm">Java</a>　<a href="http://po6.nsk.ne.jp/~snget/mobile/mobile_index2.htm">携帯</a>　<a href="http://po6.nsk.ne.jp/~snget/music/music_index.htm">音楽</a>　<a href="../game/g_index.htm">Game</a>　<a href="n2004_12.htm">12</a> <a href="n2004_11.htm">11</a> <a href="n2004_10.htm">10</a> <a href="n2004_09.htm">9</a> <a href="n2004_08.htm">8</a> <a href="n2004_07.htm">7</a> <a href="n2004_06.htm">6</a> <a href="n2004_05.htm">5</a> <a href="n2004_04.htm">4</a> <a href="n2004_03.htm">3</a> <a href="n2004_02.htm">2</a> <a href="n2004_01.htm">1</a> (04) <a href="n2003_12.htm">12</a> <a href="n2003_11.htm">11</a> <a href="n2003_10.htm">10</a> <a href="n2003_09.htm">9</a> <a href="n2003_08.htm">8</a> <a href="n2003_07.htm">7</a> (03)'
  document.all.d51.innerHTML = str1;

 var str2 = '<a href="news_index.htm">Index</a> <a href="n2006_06.htm">6</a> <a href="n2006_05.htm">5</a> <a href="n2006_04.htm">4</a> <a href="n2006_03.htm">3</a> <a href="n2006_02.htm">2</a> <a href="n2006_01.htm">1</a> (06) <a href="n2005_12.htm">12</a> <a href="n2005_11.htm">11</a> <a href="n2005_10.htm">10</a> <a href="n2005_09.htm">9</a> <a href="n2005_08.htm">8</a> <a href="n2005_07.htm">7</a> <a href="n2005_06.htm">6</a> <a href="n2005_05.htm">5</a> <a href="n2005_04.htm">4</a> <a href="n2005_03.htm">3</a> <a href="n2005_02.htm">2</a> <a href="n2005_01.htm">1</a> (05) '
  document.all.d52.innerHTML = str2;
}