function nav(Cell, Active, DefaultClass)
{
  if (Active == 1)
  {
    Cell.className = 'Selected';
  }
  else if (Active == 2)
  {
    Cell.className = 'SubSelected';
  }
  else
  {
    Cell.className = DefaultClass;
  }
}

function click(Cell, Class, URL)
{
  nav(Cell, 0, Class);
  window.location.href = URL;
}