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diff --git a/khtml/xml/dom2_traversalimpl.h b/khtml/xml/dom2_traversalimpl.h
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+/*
+ * This file is part of the DOM implementation for KDE.
+ *
+ * (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
+ * (C) 2001 Peter Kelly (pmk@post.com)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef _DOM2_TraversalImpl_h_
+#define _DOM2_TraversalImpl_h_
+
+#include "dom/dom_node.h"
+#include "dom/dom_misc.h"
+#include "misc/shared.h"
+#include "dom/dom2_traversal.h"
+
+namespace DOM {
+
+class NodeImpl;
+class DocumentImpl;
+
+class NodeIteratorImpl : public khtml::Shared<NodeIteratorImpl>
+{
+public:
+    NodeIteratorImpl(NodeImpl *_root, unsigned long _whatToShow, NodeFilter _filter, bool _entityReferenceExpansion);
+    ~NodeIteratorImpl();
+
+
+    NodeImpl *root();
+    unsigned long whatToShow();
+    NodeFilter filter();
+    bool expandEntityReferences();
+
+    NodeImpl *nextNode(int &exceptioncode);
+    NodeImpl *previousNode(int &exceptioncode);
+    void detach(int &exceptioncode);
+
+
+    /**
+     * This function has to be called if you delete a node from the
+     * document tree and you want the Iterator to react if there
+     * are any changes concerning it.
+     */
+    void notifyBeforeNodeRemoval(NodeImpl *removed);
+
+    short isAccepted(NodeImpl *n);
+    NodeImpl *getNextNode(NodeImpl *n);
+    NodeImpl *getPreviousNode(NodeImpl *n);
+protected:
+    NodeImpl *m_root;
+    long m_whatToShow;
+    NodeFilter m_filter;
+    bool m_expandEntityReferences;
+
+    bool m_inFront;
+    NodeImpl *m_referenceNode;
+    bool m_detached;
+    DocumentImpl *m_doc;
+};
+
+class NodeFilterImpl : public khtml::Shared<NodeFilterImpl>
+{
+public:
+    NodeFilterImpl();
+    ~NodeFilterImpl();
+
+    short acceptNode(const Node &n);
+
+    void setCustomNodeFilter(CustomNodeFilter *custom);
+    CustomNodeFilter *customNodeFilter();
+protected:
+    CustomNodeFilter *m_customNodeFilter;
+
+};
+
+class TreeWalkerImpl : public khtml::Shared<TreeWalkerImpl>
+{
+public:
+    TreeWalkerImpl();
+    TreeWalkerImpl(const TreeWalkerImpl &other);
+    TreeWalkerImpl(NodeImpl *n, NodeFilter f);
+    TreeWalkerImpl(NodeImpl *n, long _whatToShow, NodeFilterImpl *f,
+                   bool entityReferenceExpansion);
+    TreeWalkerImpl & operator = (const TreeWalkerImpl &other);
+
+
+    ~TreeWalkerImpl();
+
+    NodeImpl *getRoot() const;
+
+    unsigned long getWhatToShow() const;
+
+    NodeFilterImpl *getFilter() const;
+
+    bool getExpandEntityReferences() const;
+
+    NodeImpl *getCurrentNode() const;
+
+    void setCurrentNode( NodeImpl *_currentNode);
+
+    NodeImpl *parentNode();
+
+    NodeImpl *firstChild();
+
+    NodeImpl *lastChild ();
+
+    NodeImpl *previousSibling ();
+
+    NodeImpl *nextSibling();
+
+    NodeImpl *previousNode();
+
+    NodeImpl *nextNode();
+
+
+    /**
+     * Sets which node types are to be presented via the TreeWalker
+     */
+    void setWhatToShow(long _whatToShow);
+    void setFilter(NodeFilterImpl *_filter);
+    void setExpandEntityReferences(bool value);
+
+    NodeImpl *getParentNode(NodeImpl *n);
+    NodeImpl *getFirstChild(NodeImpl *n);
+    NodeImpl *getLastChild(NodeImpl *n);
+    NodeImpl *getPreviousSibling(NodeImpl *n);
+    NodeImpl *getNextSibling(NodeImpl *n);
+
+    short isAccepted(NodeImpl *n);
+
+protected:
+    /**
+     * This attribute determines which node types are presented via
+     * the TreeWalker.
+     *
+     */
+    long m_whatToShow;
+
+    /**
+     * The filter used to screen nodes.
+     *
+     */
+    NodeFilterImpl *m_filter;
+
+    /**
+     * The value of this flag determines whether entity reference
+     * nodes are expanded. To produce a view of the document that has
+     * entity references expanded and does not expose the entity
+     * reference node itself, use the whatToShow flags to hide the
+     * entity reference node and set expandEntityReferences to true
+     * when creating the iterator. To produce a view of the document
+     * that has entity reference nodes but no entity expansion, use
+     * the whatToShow flags to show the entity reference node and set
+     * expandEntityReferences to true.
+     *
+     * This is not implemented (always true)
+     */
+    bool m_expandEntityReferences;
+
+    /**
+     * The current node.
+     *
+     *  The value must not be null. Attempting to set it to null will
+     * raise a NOT_SUPPORTED_ERR exception. When setting a node, the
+     * whatToShow flags and any Filter associated with the TreeWalker
+     * are not checked. The currentNode may be set to any Node of any
+     * type.
+     *
+     */
+    NodeImpl *m_currentNode;
+
+    NodeImpl *m_rootNode;
+    DocumentImpl *m_doc;
+};
+
+
+} // namespace
+
+#endif
+