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

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

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

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

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

  td.className = "menuHoverO";
  d.className = "menuHoverO";
}

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

  td.className = "menuNormalO";
  d.className = "menuNormalO";
}

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

  td.className = "menuHoverP";
  d.className = "menuHoverP";
}

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

  td.className = "menuNormalP";
  d.className = "menuNormalP";
}