function generateNavlinks() {
var nl_str = '<a href="javascript:toggleFullYearNav();" id="close">x</a>';
nl_str = nl_str + '<a href="javascript:showPreviousYear();" id="previousYearLink">&laquo;</a><a href="javascript:showNextYear();" id="nextYearLink">&raquo;</a><ul>';
nl_str = nl_str + '<li id="2009"><h4>2009</h4>';
nl_str = nl_str + '<ol>';
nl_str = nl_str + '<li><a href="/calendar/2009-01.html">January</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-02.html">February</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-03.html">March</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-04.html">April</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-05.html">May</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-06.html">June</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-07.html">July</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-08.html">August</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-09.html">September</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-10.html">October</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-11.html">November</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2009-12.html">December</a></li>';
nl_str = nl_str + '</ol></li>';
nl_str = nl_str + '<li id="currentyear"><h4>2010</h4>';
nl_str = nl_str + '<ol>';
nl_str = nl_str + '<li><a href="/calendar/2010-01.html">January</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-02.html">February</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-03.html">March</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-04.html">April</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-05.html">May</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-06.html">June</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-07.html">July</a></li>';
nl_str = nl_str + '<li id="currentmonth">August</li>';
nl_str = nl_str + '<li><a href="/calendar/2010-09.html">September</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-10.html">October</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-11.html">November</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2010-12.html">December</a></li>';
nl_str = nl_str + '</ol></li>';
nl_str = nl_str + '<li id="2011"><h4>2011</h4>';
nl_str = nl_str + '<ol>';
nl_str = nl_str + '<li><a href="/calendar/2011-01.html">January</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2011-02.html">February</a></li>';
nl_str = nl_str + '<li><a href="/calendar/2011-03.html">March</a></li>';
nl_str = nl_str + '<li>April</li>';
nl_str = nl_str + '<li>May</li>';
nl_str = nl_str + '<li>June</li>';
nl_str = nl_str + '<li>July</li>';
nl_str = nl_str + '<li>August</li>';
nl_str = nl_str + '<li>September</li>';
nl_str = nl_str + '<li>October</li>';
nl_str = nl_str + '<li>November</li>';
nl_str = nl_str + '<li>December</li>';
nl_str = nl_str + '</ol></li>';
nl_str = nl_str + '</ul>';
return nl_str;
};

var initialYear = 2009;
var currentYear = 2010;
var finalYear = 2011;
var previousYearLink = document.getElementById('previousYearLink');
var nextYearLink = document.getElementById('nextYearLink');

function toggleFullYearNav() { 
 var overlay = document.getElementById('full-year-nav');
 var link = document.getElementById('allMonths');
 if (overlay.style.display == 'block') {
  overlay.style.display = 'none';
  link.style.display = 'block';
 } else {
  overlay.style.display = 'block';
  link.style.display = 'none';
 }
};

function navlinksOnload() {
 if (!document.getElementById) {
  return;  // this browser can't handle the following code
 }
 if (typeof window.clientInformation != 'undefined') {
  if (window.clientInformation.platform.indexOf('Mac' != -1)) {
   if (window.clientInformation.appName == 'Microsoft Internet Explorer') {
    return;  // Mac IE can't handle the popup, either
   }
  }
 }

 var allMonths = document.getElementById("allMonths");
 allMonths.innerHTML = '';
 allMonths.innerHTML = '<a href="javascript:toggleFullYearNav();" id="allMonthsLink">Choose a Month&#8230;</a>';

 var fullYearNav = document.getElementById('full-year-nav');
 fullYearNav.innerHTML = '';
 fullYearNav.innerHTML = generateNavlinks();
};

function showPreviousYear() {
 if (initialYear != currentYear) {
  document.getElementById('currentyear').id = currentYear;
  currentYear--;
  document.getElementById(currentYear).id = 'currentyear';
 }
 document.getElementById('nextYearLink').style.display = 'block';
 if (initialYear == currentYear) {
  document.getElementById('previousYearLink').style.display = 'none';
 }
};

function showNextYear() {
 if (finalYear != currentYear) {
  document.getElementById('currentyear').id = currentYear;
  currentYear++;
  document.getElementById(currentYear).id = 'currentyear';
 }
 document.getElementById('previousYearLink').style.display = 'block';
 if (finalYear == currentYear) {
  document.getElementById('nextYearLink').style.display = 'none';
 }
};