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";
}