function expand(s)
{
  var td = s;
  td.className = "menuHover";

  var d = td.getElementsByTagName("div").item(0);
  if ('object' == typeof(d)) {
	  d.className = "menuHover";
  }
}

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

  td.className = "menuNormal";
  if ('object' == typeof(d)) {
	  d.className = "menuNormal";
  }
}