function $(t)
{
	if (document.all)
		return document.all[t];
  return document.getElementById(t);
}

function change_v(id)
{
  var obj = $('pt' + id);
  var obj2 = $('pp' + id);
  if (obj.style.display == 'none')
  {
    obj.style.display = 'block';
    obj2.className = 'tree_active';
    for(var i = 0; i < tree_ids.length; i++)
      if (tree_ids[i] != id)
      {
        $('pt' + tree_ids[i]).style.display = 'none';
        $('pp' + tree_ids[i]).className = '';
      }
  }
  else
  {
    obj.style.display = 'none';
    obj2.className = '';
  }
}

function open_game()
{
  $('klacc-game-flash').style.display = 'block';
  $('klacc-game-link').style.visibility = 'hidden';
}

function close_game()
{
  $('klacc-game-link').style.visibility = 'visible';
  $('klacc-game-flash').style.display = 'none';
}