with (document) {
  writeln('<div id="navcontainer_announce">');
    writeln('<ul id="navlist_announce">');
	  if (document.title == "Announcement") {
		writeln('<li><a href="announcement.html" id="current">通告</a></li>');
	  } else {
		writeln('<li><a href="announcement.html">通告</a></li>');
	  }
    writeln('</ul>');
  writeln('</div>');
}