diff --git a/btree.cpp b/btree.cpp
index bd5ae1f..0ecafbd 100644
--- a/btree.cpp
+++ b/btree.cpp
@@ -47,6 +47,19 @@
 } // bTree::isNull
 
 uPtr
+bTree::getAddress(TbNode * node) {
+  uPtr u;
+  setNull(u);
+  
+  if (memoryTree) 
+    u.bPtr = node;
+  else
+    u.offset = node->tag;
+
+  return u;
+} // bTree::getAddress
+
+uPtr
 bTree::getFirstDeleted(void) {
 
   if (!memoryTree) {
@@ -147,10 +160,11 @@
 void
 bTree::setFirstDeleted(uPtr value) {
   info->firstDeleted = value;
-  if (!memoryTree) {
-    if (!vfs->fSeek((int)&info->firstDeleted - (int)info)) exit(42);
-    if (!vfs->fWrite(&info->firstDeleted, sizeof(info->firstDeleted))) exit(42);
-  } // if not memoryTree
+
+  if (memoryTree) return;
+
+  if (!vfs->fSeek((int)&info->firstDeleted - (int)info)) exit(42);
+  if (!vfs->fWrite(&info->firstDeleted, sizeof(info->firstDeleted))) exit(42);
 
 } // bTree::setFirstDeleted
 
@@ -158,10 +172,10 @@
 bTree::setNodes(uInt32 value) {
   info->nodes = value;
 
-  if (!memoryTree) {
-    if (!vfs->fSeek((int)&info->nodes - (int)info)) exit(42);
-    if (!vfs->fWrite(&info->nodes, sizeof(info->nodes))) exit(42);
-  } // if not memoryTree
+  if (memoryTree) return;
+
+  if (!vfs->fSeek((int)&info->nodes - (int)info)) exit(42);
+  if (!vfs->fWrite(&info->nodes, sizeof(info->nodes))) exit(42);
 
 } // bTree::setNodes
 
@@ -169,10 +183,10 @@
 bTree::setHeight(uInt32 value) {
   info->height = value;
 
-  if (!memoryTree) {
-    if (!vfs->fSeek((int)&info->height - (int)info)) exit(42);
-    if (!vfs->fWrite(&info->height, sizeof(info->height))) exit(42);
-  } // if not memoryTree
+  if (memoryTree) return;
+
+  if (!vfs->fSeek((int)&info->height - (int)info)) exit(42);
+  if (!vfs->fWrite(&info->height, sizeof(info->height))) exit(42);
 
 } // bTree::setHeight
 
@@ -180,10 +194,10 @@
 bTree::setKeys(uInt32 value) {
   info->keys = value;
 
-  if (!memoryTree) {
-    if (!vfs->fSeek((int)&info->keys - (int)info)) exit(42);
-    if (!vfs->fWrite(&info->keys, sizeof(info->keys))) exit(42);
-  } // if not memoryTree
+  if (memoryTree) return;
+
+  if (!vfs->fSeek((int)&info->keys - (int)info)) exit(42);
+  if (!vfs->fWrite(&info->keys, sizeof(info->keys))) exit(42);
 
 } // bTree::getKeys
 
@@ -221,11 +235,11 @@
 bTree::setRoot(uPtr value) {
   info->root = value;
 
-  if (!memoryTree) {
-    if (!vfs->fSeek((int)&info->root - (int)info)) exit(42);
-    if (!vfs->fWrite(&info->root, sizeof(info->root))) exit(42);
-  } // if not memoryTree
-  return;
+  if (memoryTree) return;
+
+  if (!vfs->fSeek((int)&info->root - (int)info)) exit(42);
+  if (!vfs->fWrite(&info->root, sizeof(info->root))) exit(42);
+
 } // bTree::setRoot
 
 void
diff --git a/btree.h b/btree.h
index 1292c1c..7cb6f6b 100644
--- a/btree.h
+++ b/btree.h
@@ -19,6 +19,7 @@
   int      calcSize(TbNode *);
   void     discardPage(TbNode *);
   bool     isNull(uPtr);
+  uPtr     getAddress(TbNode *);
   uPtr     getFirstDeleted(void);
   uInt32   getNodes(void);
   uInt32   getHeight(void);