cnPrimaryNavMenuManager = new function()
{ // public configuration data
  this.VERSION          = '1.1';
  this.MENU_ON_DELAY    = 0;
  this.MENU_OFF_DELAY   = 60000;
  this.MENU_OFF_CLASS   = 'flory_sombb_link';
  this.MENU_ON_CLASS    = 'flory_sombb_link_on';
  this.MENU_HOVER_CLASS = 'flory_sombb_link_hover';
  this.MENU_MAT_CLASS   = 'flory_sombb_fmenu_ie_select_block';
  this.MENU_ELEM_SUFFIX = '_menu';
  this.MENU_GROUP_ID    = 'flory_sombb';
  this.MENU_EXCLUDE_USER_AGENTS = [];
  this._onTimerId     = null;
  this._offTimerId    = null;
  this._turnOnMenu    = function(){};
  this._turnOffMenu   = function(){};
  this._clearOnTimer = function ()
  {
    clearTimeout(this._onTimerId);
    this._onTimerId  = null;
    this._turnOnMenu = function(){};
  };
  this._clearOffTimer = function ()
  {
    clearTimeout(this._offTimerId);
    this._offTimerId  = null;
    this._turnOffMenu = function(){};
  };
  this._skipMenuDisplay = false; // assume we want to show the menu
  this._onHdrElemId     = null;  // current "on" element
  this._activeHdrElemId = null;  // header of "active" site
  this._hdrMenuObjs     = null;  // array of Objects holding header/menu data
  this._menuDisabled    = false; // flag indicating that menus are disabled
  this.turnOffMenuNow = function(){}; // this is actually defined when a menu is activated
  this.toggleMenu = function(toggleElem)
  {
    if (this._menuDisabled)       return;
    if (!document.getElementById) return;
    if (!this._hdrMenuObjs)       this._initialize();
    if (this._onTimerId)          this._clearOnTimer();
    var self = this; // set up local copy of instance for use via closure by on/off functions
    for ( var i = 0; i < this._hdrMenuObjs.length; ++i )
    {
      var hdrMenuObj = this._hdrMenuObjs[i];
      var hdrElem    = hdrMenuObj['hdr'];
      var menuElem   = hdrMenuObj['menu'];
      if ( toggleElem.id && toggleElem.id == hdrElem.id && menuElem )
      {
        var onHdrElem  = document.getElementById(toggleElem.id);
        var onMenuElem = menuElem;
        onHdrElem.className = this.MENU_HOVER_CLASS;
        registerEventHandler(onHdrElem, 'mouseout', mouseOutHandler);
        if (this._skipMenuDisplay) continue;
        this._turnOnMenu = function()
        {
          if ( self._onHdrElemId )
          {
            self._turnOffMenu();
            self._clearOffTimer();
          }
          self._showMenu(onHdrElem, onMenuElem);
          unregisterEventHandler(onHdrElem, 'mouseout', mouseOutHandler);
          registerEventHandler(document,   'mousedown', mouseDownHandler);
          registerEventHandler(onMenuElem, 'mouseout',  mouseOutHandler);
          self._clearOnTimer();
          self._onHdrElemId = onHdrElem.id;
          self._resetHdrClass(onHdrElem);
        };
        this._onTimerId = setTimeout('cnPrimaryNavMenuManager._turnOnMenu()', this.MENU_ON_DELAY);
        this.turnOffMenuNow = function(disableCompletely)
        {
          turnOffMenu(onHdrElem, onMenuElem);
          self._clearOffTimer();
          self._onHdrElemId = null;
          if (disableCompletely) this._menuDisabled = true;
        };
      }
      else if ( menuElem && menuElem.style.display == 'block' )
      {
        var offHdrElem  = hdrElem;
        var offMenuElem = menuElem;
        this._resetHdrClass(offHdrElem);
        if (this._skipMenuDisplay) continue;
        this._turnOffMenu = function()
        {
          turnOffMenu(offHdrElem, offMenuElem);
          self._clearOffTimer();
          self._onHdrElemId = null;
        };
        this._offTimerId = setTimeout('cnPrimaryNavMenuManager._turnOffMenu()', this.MENU_OFF_DELAY);
      }
    }
    function mouseOutHandler(e)
    {
      var event  = pullEvent(e);
      var target = pullTarget(event);
      var toElem = pullDestination(event);
      if ( !self._skipMenuDisplay && toElem && !isChildOf(toElem, onMenuElem) )
      {
        var myHdrElem  = onHdrElem;
        var myMenuElem = onMenuElem;
        if (self._onTimerId) self._clearOnTimer();
        self._turnOffMenu = function()
        {
          turnOffMenu(myHdrElem, myMenuElem);
          self._clearOffTimer();
        };
        self._offTimerId = setTimeout('cnPrimaryNavMenuManager._turnOffMenu()', self.MENU_OFF_DELAY);
      }
      self._resetHdrClass(onHdrElem);
      if (event.stopPropagation) event.stopPropagation();
      else event.cancelBubble = true;
    }
    function mouseDownHandler(e)
    {
      var event  = pullEvent(e);
      var target = pullTarget(event);
      if ( !isChildOf(target, onMenuElem) )
      {
        turnOffMenu(onHdrElem, onMenuElem);
        self._turnOffMenu();
        self._clearOffTimer();
        self._resetHdrClass(onHdrElem);
      }
    }
    function turnOffMenu(hdrElem, menuElem)
    {
      hideMenu(hdrElem, menuElem);
      unregisterEventHandler(hdrElem,  'mouseout',  mouseOutHandler);
      unregisterEventHandler(document, 'mousedown', mouseDownHandler);
    }
  };
  this._initialize = function ()
  {
    this._skipMenuDisplay = this._verifyUserAgent();
    this._hdrMenuObjs = new Array();
    var hdrElems = getElementsByClassNames(this.MENU_GROUP_ID, [this.MENU_OFF_CLASS, this.MENU_ON_CLASS]);
    for ( var i = 0; i < hdrElems.length; ++i )
    {
      var hdrElem   = hdrElems[i];
      var hdrElemId = hdrElem.id;
      if ( hdrElemId )
      {
        var menuElem = document.getElementById(hdrElemId + this.MENU_ELEM_SUFFIX);
        if ( menuElem )
        {
          var menuId = menuElem.id;
          if (menuId) this._hdrMenuObjs[this._hdrMenuObjs.length] = { hdr: hdrElem, menu: menuElem };
          if (hdrElem.className == this.MENU_ON_CLASS) this._activeHdrElemId = hdrElemId;
        }
      }
    }
    return;
  };
  this._resetHdrClass = function (hdrElem)
  {
    hdrElem.className = (hdrElem.id == this._activeHdrElemId) ? this.MENU_ON_CLASS : this.MENU_OFF_CLASS;
  }
  this._showMenu = function (hdrElem, menuElem)
  {
    hdrElem.style.display  = 'none';
    menuElem.style.display = 'block';
    if ( document.all && navigator.appVersion.indexOf('Win') != -1 )
    {
      var matId = menuElem.id+'_ie_mat';
      var ieMat = document.getElementById(matId);
      if ( !ieMat )
      {
        ieMat = document.createElement('IFRAME');
        ieMat.setAttribute('scrolling', 'no');
        ieMat.setAttribute('frameborder', 0);
        var menu  = (menuElem.getElementsByTagName('div'))[1];
        ieMat.id            = matId;
        ieMat.className     = this.MENU_MAT_CLASS;
        ieMat.style.width   = menu.offsetWidth;
        ieMat.style.height  = menu.offsetHeight;
        ieMat.style.zIndex  = menu.style.zIndex - 1;
        ieMat.style.display = 'block';
        ieMat.style.color   = 'white';
        menu.appendChild(ieMat);
      }
    }
  }
  this._verifyUserAgent = function()
  {
    var userAgent = navigator.userAgent;
    for ( var i = 0; i < this.MENU_EXCLUDE_USER_AGENTS.length ; ++i )
    {
      if ( userAgent.indexOf(this.MENU_EXCLUDE_USER_AGENTS[i]) != -1 )
        return true;
    }
    return false;
  };
  function getElementsByClassNames(rootElemId, classNames)
  {
    var rootElem         = document.getElementById(rootElemId);
    var elements         = new Array();
    var captureClassName = new Object();
    for ( var i = 0; i < classNames.length; ++i ) captureClassName[classNames[i]] = true;
    if (rootElem) _pullElements(rootElem);
    function _pullElements(node)
    {
      if (captureClassName[node.className]) elements[elements.length] = node;
      if ( node.hasChildNodes )
      {
        var children = node.childNodes;
        for ( var i = 0; i < children.length; ++i )
          _pullElements(children[i]);
      }
    }

    return elements;
  }
  function hideMenu(hdrElem, menuElem)
  {
    hdrElem.style.display  = 'block';
    menuElem.style.display = 'none';
  }
  function isChildOf(node, parentNode)
  {
    var isChild = parentNode == node;
    if ( !isChild && node.parentNode )
      isChild = isChildOf(node.parentNode, parentNode);
    return isChild;
  }
  function pullDestination(e)
  {
    return (e.relatedTarget) ? e.relatedTarget : (e.toElement) ? e.toElement : null;
  }
  function pullEvent(e)
  {
    return (e) ? e : (window.event) ? window.event : null;
  }
  function pullTarget(e)
  {
    return (e.target) ? e.target : (e.srcElement) ? e.srcElement : null;
  }
  function registerEventHandler(elem, event, handler)
  {
    if ( document.addEventListener )
      elem.addEventListener(event, handler, false);
    else if ( document.attachEvent )
      elem.attachEvent('on'+event,  handler);
    else // probably on a Mac IE
      elem['on'+event] = handler;
  }
  function unregisterEventHandler(elem, event, handler)
  {
    if ( document.removeEventListener )
      elem.removeEventListener(event, handler, false);
    else if ( document.detachEvent )
      elem.detachEvent('on'+event, handler);
    else // probably on a Mac on IE
      elem['on'+event] = null;
  }
}
function changeClass(elemId, newClass)
{
  var elem = null;
  if ( document.getElementById )
    elem = document.getElementById(elemId);
  else if ( document.all )
    elem = document.all[elemId];
  if (elem) elem.className = newClass;
}