function CalendarMove(n, isForward)
{
  // display month
  for (i = 0; i < 12; i++)
  {
    var m = ObjById('calendarMonth' + i);
    if ((isForward && i == (n+1)) || (!isForward && i == (n-1)))
    {
      m.setAttribute("class", "");
      m.setAttribute("className", "");
    }
    else
    {
      m.setAttribute("class", "monthHidden");
      m.setAttribute("className", "monthHidden");
    }
  }
}

function CalendarToggleVis(id,vis) {
  var e = ObjById(id);
  if (!vis)
  {
    if (CalendarIsOldIe())
    {
      e.style.display = "none";
    }
    else
    {
      e.style.setProperty("display","none",null);
    }
  } else {
    if (CalendarIsOldIe())
    {
      e.style.display = "block";
    }
    else
    { 
      e.style.setProperty("display","block",null); 
    }
  }
}
function CalendarIsOldIe()
{
  if (navigator.appName=="Microsoft Internet Explorer"&&parseFloat(navigator.appVersion)<=6)
    return true;
  else
    return false; 
}