Index: t3lib/class.t3lib_befunc.php
===================================================================
--- t3lib/class.t3lib_befunc.php	(Revision 9852)
+++ t3lib/class.t3lib_befunc.php	(Arbeitskopie)
@@ -3129,8 +3129,14 @@
 				t3lib_div::callUserFunction($updateSignals[$set], $params, $ref);
 				$signals[] = $params['JScode'];
 			} else {
-				if ($set == 'updatePageTree' || $set == 'updateFolderTree') {
+				if ($set === 'updatePageTree') {
 					$signals[] = '
+						if (top && top.TYPO3.Backend.NavigationContainer.PageTree) {
+							top.TYPO3.Backend.NavigationContainer.PageTree.refreshTree();
+						}
+					';
+				} else if ($set == 'updateFolderTree') {
+					$signals[] = '
 					if (top && top.TYPO3.Backend.NavigationIframe) {
 						top.TYPO3.Backend.NavigationIframe.refresh();
 					}';
Index: typo3/js/modulemenu.js
===================================================================
--- typo3/js/modulemenu.js	(Revision 9852)
+++ typo3/js/modulemenu.js	(Arbeitskopie)
@@ -338,13 +338,13 @@
 
 		// keep backward compatibility
 	top.list = TYPO3.Backend.ContentContainer;
-	top.nav = TYPO3.Backend.NavigationIframe;
+	top.nav = TYPO3.Backend.NavigationContainer.PageTree;
 	top.list_frame = top.list.getIframe();
-	top.nav_frame = TYPO3.Backend.NavigationIframe.getIframe();
+	top.nav_frame = TYPO3.Backend.NavigationContainer.PageTree;
 
 	top.TYPO3ModuleMenu = TYPO3.ModuleMenu.App;
 	top.content = {
-		nav_frame: TYPO3.Backend.NavigationIframe.getIframe(),
+		nav_frame: TYPO3.Backend.NavigationContainer.PageTree,
 		list_frame: TYPO3.Backend.ContentContainer.getIframe(),
 		location: TYPO3.Backend.ContentContainer.getIframe().location,
 		document: TYPO3.Backend.ContentContainer.getIframe()
Index: typo3/js/backend.js
===================================================================
--- typo3/js/backend.js	(Revision 9852)
+++ typo3/js/backend.js	(Arbeitskopie)
@@ -37,8 +37,8 @@
 		// clear information about which entry in nav. tree that might have been highlighted.
 	top.fsMod.navFrameHighlightedID = [];
 
-	if (top.TYPO3.Backend.NavigationIframe.isVisible()) {
-		top.TYPO3.Backend.NavigationIframe.refresh();
+	if (top.TYPO3.Backend.NavigationContainer.PageTree) {
+		top.TYPO3.Backend.NavigationContainer.PageTree.refreshTree();
 	}
 
 	top.nextLoadModuleUrl = url;