addEvent(window, "load", rosterlist_fix);

var _rosterlists;
var _active;

function rosterlist_fix() {
  var lists = document.getElementById('roster').getElementsByTagName('ul');
  var list;

  var rosterlists = new Array();

  for (var i = 0; list = lists[i]; i++) {
    if (list.className == 'rosterlist')
      rosterlists[rosterlists.length] = list;
  }

  _rosterlists = rosterlists;

  _active = _rosterlists[0].id;

  updateLists();
}

function updateLists() {
  var ul;

  for (var i = 0; ul = _rosterlists[i]; i++) {
    if (ul.id != _active)
      ul.style.display = 'none';
    else
      ul.style.display = 'block';
  }
}