function showYear(y) {
  var year;
  for (i=2001; i<2000+MAX_Y+1; i++) {
    document.getElementById(i).style.display = "none";
    year = "y"+i;
    document.getElementById(year).style.backgroundColor = "#FFFFFF";
    year = "m"+i;
    document.getElementById(year).style.backgroundColor = "#F4F1EA";
  }
  document.getElementById(y).style.display = "block";
  year = "y"+y;
  document.getElementById(year).style.backgroundColor = "#B8D3DA";
  year = "m"+y;
  document.getElementById(year).style.backgroundColor = "#FAEDD3";
}

function load() {
  if (window.location.search != "") {
    var wls = window.location.search;
    wls = parseInt(wls.substring(1));
      if (wls>0 && wls<=MAX_Y) {
        showYear(2000+wls);
      }
  }
  else {
    showYear(2000+MAX_Y);
  }
}