var hideCheckTime = -1;
  var hideTimeout;
  var currentHoverArea = null;
  var WaitingToHide = false;

  function SuspendHide()
  {
  };

  function ResumeHide()
  {
  };

  function DoMouseOver()
  {
    if (WaitingToHide == true)
    {
      DoHide(currentHoverArea.Name);
    }
    if (this.IsPlaceHolder == false)
    {
      this.Content.style.visibility = "visible";
    }
    this.className = this.HoverClassName;
    currentHoverArea = this;
  };

  function DoMouseOut()
  {
    if (this.IsPlaceHolder == false)
    {
      WaitingToHide = true;
      hideCheckTime = new Date().getTime();
      hideTimeout = setTimeout("CheckHide('" + this.Name + "')", 10);
    }
    else
    {
      DoHide(this.Name);
    }
  };

  function CheckHide(HoverAreaId)
  {
    hoverTime = document.getElementById(HoverAreaId).HideDelay;
    if ((new Date().getTime() - hideCheckTime) >= hoverTime)
    {
      DoHide(HoverAreaId);
    }
    else
    {
      hideTimeout = setTimeout("CheckHide('" + HoverAreaId + "')", 10);
    }
  };

  function DoHide(HoverAreaId)
  {
    currentHoverArea = null;
    clearTimeout(hideTimeout);
    hideCheckTime = -1;
    var targetHoverArea = new Object();
    targetHoverArea = document.getElementById(HoverAreaId);
    if (targetHoverArea.IsPlaceHolder == false)
    {
      targetHoverArea.Content.style.visibility = "hidden";
    }
    targetHoverArea.className = targetHoverArea.OldClassName;
    WaitingToHide = false;
  };

  function RegisterPlaceHolderEvents(HoverAreaId, HoverClassName)
  {
    var newHoverArea = new Object();
    newHoverArea = document.getElementById(HoverAreaId);
    newHoverArea.Name = HoverAreaId;
    newHoverArea.Content = null;
    newHoverArea.IsPlaceHolder = true;
    newHoverArea.HideDelay = -1;
    newHoverArea.OldClassName = newHoverArea.className;
    newHoverArea.HoverClassName = newHoverArea.className + HoverClassName
    newHoverArea.style.position = "static";
    newHoverArea.onmouseover = DoMouseOver;
    newHoverArea.onmouseout = DoMouseOut;
  };

  function RegisterMenuEvents(HoverAreaId, ContentId, HoverClassName, HideDelay)
  {
    var newContent = new Object();
    newContent = document.getElementById(ContentId);
    newContent.Name = ContentId;
    newContent.style.position = "absolute";
    newContent.style.visibility = "hidden";
    newContent.onmouseover = SuspendHide;
    newContent.onmouseout = ResumeHide;
    var newHoverArea = new Object();
    newHoverArea = document.getElementById(HoverAreaId);
    newHoverArea.Name = HoverAreaId;
    newHoverArea.IsPlaceHolder = false;
    newHoverArea.HideDelay = HideDelay;
    newHoverArea.Content = newContent;
    newHoverArea.OldClassName = newHoverArea.className;
    newHoverArea.HoverClassName = newHoverArea.className + HoverClassName
    newHoverArea.style.position = "static";
    newHoverArea.onmouseover = DoMouseOver;
    newHoverArea.onmouseout = DoMouseOut;
  };