function expand(s)
{
  var td = s;
  var d = td.getElementsByTagName("div").item(0);
  var a = td.getElementsByTagName("a").item(0);

  a.className = "menuHighlight";
  td.className = "menuHover";
  d.className = "menuHover";
}

function collapse(s)
{
  var td = s;
  var d = td.getElementsByTagName("div").item(0);
  var a = td.getElementsByTagName("a").item(0);

  a.className = "menu";
  td.className = "menuNormal";
  d.className = "menuNormal";
}