function getIframeDocument(el) {
    var oIframe = Ext.get('center-iframe').dom;
    var oDoc = oIframe.contentWindow || oIframe.contentDocument;
    
    return ( typeof oDoc.document == "object" ) ? oDoc.document : oDoc;
}


function navigateTo( aDocUniqueID ) {
  var iframeDoc = getIframeDocument();
  if ( typeof iframeDoc == "undefined" ) return;
    
  var navButton = Ext.DomQuery.selectNode( "#navto_button", iframeDoc );
  if ( !( navButton == null ) ) {
    setCookie( "TMNavigateTo", aDocUniqueID, false, "/" );
    navButton.click();
  }
  navButton, iframeDoc = null;  
}


function updatePanel( panelURL, region, panelID ) {
     if ( typeof panelID == 'undefined' ) panelID = ( region ? region : '' ) + '-content-panel';
     if ( panelID == 'center-iframe-panel' ) {
       //iframeDoc = getIframeDocument('center-iframe');
       targetWindow = Ext.get('center-iframe').dom.contentWindow;
     }
     
     if ( region == 'center' ) {
     //       layout.getRegion('east').purgeListeners();
         layout.getRegion('center').hide();
         layout.getRegion('east').hide();
	//       layout.getRegion('north').hide();
      }
      
      if ( typeof targetWindow == 'undefined' ) targetWindow = window;
       
      var db = Ext.nd.Session.CurrentDatabase;
       
       // check to see if the passed panelURL value is reserved
	  switch( panelURL) {
		case 'Back' : panelURL = targetWindow.PreviousUrl; break;
		case 'LastViewURL' :
			  var viewNameCookie = getCookie( db.WebFilePath + ":ViewName" );
			  var viewStateCookie = getCookie( db.WebFilePath + ":ViewState" );
			  panelURL = db.WebFilePath + ( viewNameCookie ? ( viewNameCookie  + "?OpenView" ) : '' ) + ( viewStateCookie ? ( viewStateCookie  + "?OpenView" ) : '' );
			  break;
		case 'Reset' : panelURL = db.WebFilePath; break;
          case 'Refresh' : panelURL = 'refresh'; break;
          case 'Focus' : panelURL = null; break;
          case 'Login' : panelURL = db.WebFilePath + "login"; break;
          case 'Logout' : panelURL = db.WebFilePath + "?logout"; break;
	  }

	// get the region and panel to work with
	var reg = layout.getRegion( region );	
	if ( reg == 'east' ) reg.activePanel.hide();
	var panel = panelID ? reg.getPanel( panelID ) : reg.activePanel;
	if ( panel == null ) {
       panel = new Ext.ContentPanel( panelID, { fitToFrame:true, title: panelID, closable: false } );
       layout.add( region, panel );
     }
     
     // get the update manager
	var updater = panel.getUpdateManager();
	updater.purgeListeners();
	
	updater.loadScripts = true;
	
     if ( typeof panelURL == 'undefined' || panelURL == null || panelURL.length < 1 ) { 
         // don't load any url, just set focus
      }
      else if ( panelURL == 'refresh' ) { 
		if ( panelID == 'center-iframe-panel' ) { 
            if ( layout.getRegion('east') != null ) layout.getRegion('east').hide();
            
            targetWindow.location.reload();
          }
          else {
              updater.refresh();
              Ext.get('top_body').unmask();
          }
     }
     else if ( region == 'center' ) {
   	  if ( panelID == 'center-iframe-panel' ) {
         if ( targetWindow.CurrentUrl ) targetWindow.PreviousUrl = targetWindow.CurrentUrl;
	    targetWindow.CurrentUrl = panelURL;
         
         Ext.get('top_body').mask();
         //iframeDoc.hide();
         Ext.get('center-iframe').hide();
	    Ext.get('center-iframe').dom.src = panelURL;
       }
       else {
         updater.update( panelURL );
         Ext.get('top_body').unmask();
       }
	}
	else if ( region == 'east' ) {
	     updater.on( "update", function() { if ( typeof window.top.cepMakeCurrentActive == "function" ) { window.top.cepMakeCurrentActive(); } layout.getRegion('east').show(); }, this, {single: true} );
//	     updater.on( "update", function() { if ( typeof window.top.cepMakeCurrentActive == "function" ) { window.top.cepMakeCurrentActive(); } }, this, {single: true} );
	     updater.update( panelURL );
	}
	
	reg.showPanel( panelID );

     // clean up object references to avoid memory leaks
	panel, reg, updater = null;
}





    window.top.cepMakeCurrentActive = function() {
      if ( typeof Ext != "object" ) return;
      var currentID = window.top.cepCurrentID;
      
      var activeLink = Ext.select( '.cep-current' );
      if ( activeLink != null ) {
        for ( var n = 0; n < activeLink.length; n++ ) {
          activeLink[n].removeClass( 'cep-current' );
        }
      }
      
      var cepLink = Ext.select( '#cep-' + currentID );
      if ( cepLink != null ) cepLink.addClass( 'cep-current' );
      
      activeLink, cepLink = null;
      
      var viewEntries = null;
      var activeId = "";
      
      viewEntries = Ext.select( '.cep-entrywrapper', true );

      if ( viewEntries != null && viewEntries.elements.length ) {
        for ( var n = 0; n < viewEntries.elements.length; n++ ) {
          activeId = viewEntries.elements[n].id;
          var splitLength = activeId.split(".").length;
          if ( splitLength > 0 ) {
            viewEntries.elements[n].addClass( 'cep-level-' + ( splitLength - 1 ) );
          }
        }
      }

     activeId, viewEntries = null;
      
      var viewBody = Ext.get('east').select( '.embeddedview_body' );
        if ( viewBody != null ) {
        //viewBody.each( function() { this.show(); } );
        viewBody.show();
      }
      
      viewBody = null;
      
      return true;
    }


     window.top.tocMakeVisitedActive = function() {
     if ( typeof Ext != "object" ) return;
     
	var visitedLinks = window.top.tocVisitedLinks;
	var currentID = window.top.tocCurrentID;
	
	for ( x in visitedLinks ){
		var tocLinkID = visitedLinks[x];
		var domNode;
		
		var tocLink = Ext.select( '#toc-' + tocLinkID );
          if ( tocLink != null ) {
		  domNode = Ext.DomQuery.selectNode( '#toc-' + tocLinkID );
		  if ( visitedLinks[x] == currentID ) {
			  tocLink.addClass( "toc-current" );
			  tocLink.removeClass( "toc-active" );
            }
		  else {
			  tocLink.addClass( "toc-active" );
			  tocLink.removeClass( "toc-current" );
		  }
		  if ( domNode != null ) domNode.href = "javascript:navigateTo(\"" + tocLinkID + "\");";
		  //tocLink.href = "javascript:navigateTo(\"" + tocLinkID + "\");";
		  
		  // cleanup
		  tocLink, domNode = null;
		}
	
  	}

  	visitedLinks, currentID = null;
  	return true;
  }  
	window.top.logout = function(){
		var db = Ext.nd.Session.CurrentDatabase.WebFilePath
		setCookie ( db+':TRMSLoginInfo', "", false, "/", false, false, true );
		window.location.href ='/';
	}