private static IHtmlNode BuildWeekHeader(ICalendarHtmlBuilder renderer)
{
IHtmlNode headerTag = renderer.HeaderTag();
IHtmlNode row = renderer.RowTag();
foreach (string day in Culture.Current.DateTimeFormat.DayNames)
{
row.Children.Add(renderer.HeaderCellTag(day));
}
headerTag.Children.Add(row);
return headerTag;
}