diff --git a/modules/rdf/include/htrdf.h b/modules/rdf/include/htrdf.h
index 663d1d783977..ed4f70c23170 100644
--- a/modules/rdf/include/htrdf.h
+++ b/modules/rdf/include/htrdf.h
@@ -186,6 +186,14 @@ PR_PUBLIC_API(HT_Pane) HT_NewPersonalToolbarPane (HT_Notification notify);
 
 PR_PUBLIC_API(HT_Pane) HT_NewBreadcrumbPane (HT_Notification notify);
 
+PR_PUBLIC_API(void) HT_SetViewCollapsedState(HT_View view, PRBool collapsedFlag);
+PR_PUBLIC_API(PRBool) HT_IsViewCollapsed(HT_View view);
+
+PR_PUBLIC_API(void) HT_SetViewHiddenState(HT_View view, PRBool hiddenFlag);
+PR_PUBLIC_API(PRBool) HT_IsViewHidden(HT_View view);
+
+PR_PUBLIC_API(PRBool) HT_IsPaneBusy(HT_Pane pane);
+
 PR_PUBLIC_API(void) HT_AddToContainer (HT_Resource container, char *url, char *optionalTitle);
 PR_PUBLIC_API(void) HT_AddBookmark (char *url, char *optionalTitle);
 
diff --git a/modules/rdf/src/ht.c b/modules/rdf/src/ht.c
index 77b6160cde85..51efe8bd2135 100644
--- a/modules/rdf/src/ht.c
+++ b/modules/rdf/src/ht.c
@@ -171,11 +171,16 @@ ht_UpdateURLstate(char *url, PRBool inProgressFlag, int status)
 					{
 						/* start node icon animation */
 						node->flags |= HT_CONTENTS_LOADING_FLAG;
+						++(node->view->pane->loadingCount);
 					}
 					else
 					{
 						/* stop node icon animation */
 						node->flags &= (~HT_CONTENTS_LOADING_FLAG);
+						if (node->view->pane->loadingCount > 0)
+						{
+							--(node->view->pane->loadingCount);
+						}
 					}
 					sendNotification(node, HT_EVENT_NODE_VPROP_CHANGED,
 						gNavCenter->RDF_smallIcon, HT_COLUMN_STRING);
@@ -2067,6 +2072,78 @@ HT_SetWorkspaceOrder(HT_View src, HT_View dest, PRBool afterDestFlag)
 
 
 
+PR_PUBLIC_API(void)
+HT_SetViewCollapsedState(HT_View view, PRBool collapsedFlag)
+{
+	XP_ASSERT(view != NULL);
+	if (view != NULL)
+	{
+		view->collapsedFlag = collapsedFlag;
+	}
+}
+
+
+
+PR_PUBLIC_API(PRBool)
+HT_IsViewCollapsed(HT_View view)
+{
+	PRBool		collapsedFlag = PR_FALSE;
+
+	XP_ASSERT(view != NULL);
+	if (view != NULL)
+	{
+		collapsedFlag = view->collapsedFlag;
+	}
+	return(collapsedFlag);
+}
+
+
+
+PR_PUBLIC_API(void)
+HT_SetViewHiddenState(HT_View view, PRBool hiddenFlag)
+{
+	XP_ASSERT(view != NULL);
+	if (view != NULL)
+	{
+		view->hiddenFlag = hiddenFlag;
+	}
+}
+
+
+
+PR_PUBLIC_API(PRBool)
+HT_IsViewHidden(HT_View view)
+{
+	PRBool		hiddenFlag = PR_FALSE;
+
+	XP_ASSERT(view != NULL);
+	if (view != NULL)
+	{
+		hiddenFlag = view->hiddenFlag;
+	}
+	return(hiddenFlag);
+}
+
+
+
+PR_PUBLIC_API(PRBool)
+HT_IsPaneBusy(HT_Pane pane)
+{
+	PRBool		isLoadingFlag = PR_FALSE;
+
+	XP_ASSERT(pane != NULL);
+	if (pane != NULL)
+	{
+		if (pane->viewListCount > 0)
+		{
+			isLoadingFlag = PR_TRUE;
+		}
+	}
+	return(isLoadingFlag);
+}
+
+
+
 HT_View
 HT_NewView (RDF_Resource topNode, HT_Pane pane, PRBool useColumns, void *feData, PRBool autoOpen)
 {
diff --git a/modules/rdf/src/ht.h b/modules/rdf/src/ht.h
index c93607483012..f0f950fc5bae 100644
--- a/modules/rdf/src/ht.h
+++ b/modules/rdf/src/ht.h
@@ -119,6 +119,7 @@ typedef struct _HT_PaneStruct {
 	struct _HT_URLSiteMapAssoc	*smp;
 	struct _HT_URLSiteMapAssoc	*sbp;
 	uint32				viewListCount;
+	uint32				loadingCount;
 	PRBool				autoFlushFlag;
 	SBProvider			smartBrowsingProviders;
 	PRBool				dirty;
@@ -161,6 +162,8 @@ typedef struct _HT_ViewStruct {
 	PRBool				descendingFlag;
 	PRBool				refreshingItemListp;
 	PRBool				inited;
+	PRBool				collapsedFlag;
+	PRBool				hiddenFlag;
 	RDF_Resource			treeRel;
 } HT_ViewStruct;