function menuopen( oElem )
{
//  if( oElem && oElem.hasChildNodes && window.event.srcElement == oElem )
  if( oElem && oElem.hasChildNodes )
  {
    var ulElem = oElem.childNodes.item(1);

    if( ulElem.style.display == "block" && ulElem.hasChildNodes )
      ulElem.style.display = "none";
    else ulElem.style.display = "block";
    
    // Hide all others
    var ulElemUpper = oElem.parentNode;
    for( var i = 0; i<ulElemUpper.childNodes.length; i++ )
    {
      if( ulElemUpper.childNodes.item(i) != oElem && ulElemUpper.childNodes.item(i).childNodes.item(1) )
      {
        ulElemUpper.childNodes.item(i).childNodes.item(1).style.display = "none";
      }
    }
  }
  return true;
}
function onemenuopen(i)
{
        var ulElemUpper = document.getElementById("contents");
    if( i<ulElemUpper.childNodes.length)
    {
      if( ulElemUpper.childNodes.item(i).childNodes.item(1) )
      {
        ulElemUpper.childNodes.item(i).childNodes.item(1).style.display = "block";
      }
    }
  return true;
}