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diff --git a/libdigidoc/DigiDocStack.h b/libdigidoc/DigiDocStack.h
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+#ifndef __DIGIDOC_STACK_H__
+#define __DIGIDOC_STACK_H__
+//==================================================
+// FILE:	DigiDocStack.h
+// PROJECT:     Digi Doc
+// DESCRIPTION: Digi Doc functions for simple stack
+//  to keep track of xml parsing
+// AUTHOR:  Veiko Sinivee, S|E|B IT Partner Estonia
+//==================================================
+// Copyright (C) AS Sertifitseerimiskeskus
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 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
+// Lesser General Public License for more details.
+// GNU Lesser General Public Licence is available at
+// http://www.gnu.org/copyleft/lesser.html
+//==========< HISTORY >=============================
+//      09.09.2004      Veiko Sinivee
+//                      Creation
+//==================================================
+
+#include <libxml/xmlreader.h>
+#include <libdigidoc/DigiDocDefs.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+typedef struct ElementEntry_st {
+  xmlChar* tag;     // xml elements tag
+  xmlChar* prefix;  // namespace local prefix
+  xmlChar* nsUri;   // namespace URI
+  // some important atributes
+  xmlChar* id;      // attribute "Id"
+  xmlChar* uri;     // attribute "URI"
+  xmlChar* content; // attribute "ContentType"
+  void* pNext;      // next element in list/stack
+} ElementEntry;
+
+//--------------------------------------------------
+// Finds the last element on stack
+// reader - XML reader cursor to current node
+// pStack - address of stack begin. This one elemnt 
+// must exist, but might be initially empty
+// return error code or ERR_OK
+//--------------------------------------------------
+ElementEntry* ddocStackFindEnd(ElementEntry* pStack);
+
+//--------------------------------------------------
+// Push a new element info onto stack
+// reader - XML reader cursor to current node
+// pStack - address of stack begin. This one elemnt 
+// must exist, but might be initially empty
+// pLastElem - address for new elements pointer. 
+//   If not NULL then will be used to return the
+//   newly allocated elemnt, so you don't have to
+//   do a new search.
+// return error code or ERR_OK
+//--------------------------------------------------
+int ddocStackPushElement(ElementEntry* pStack, xmlTextReaderPtr reader,
+			 ElementEntry** pLastElem);
+
+//--------------------------------------------------
+// Push a new element info onto stack
+// tagName - elements tag name, Possibly with ns-prefix
+// atts - array of atributa names and values
+// pStack - address of stack begin. This one elemnt 
+// must exist, but might be initially empty
+// pLastElem - address for new elements pointer. 
+//   If not NULL then will be used to return the
+//   newly allocated elemnt, so you don't have to
+//   do a new search.
+// return error code or ERR_OK
+//--------------------------------------------------
+int ddocStackPushElementSAX(ElementEntry* pStack, const xmlChar* tagName,
+			    const xmlChar** atts, ElementEntry** pLastElem);
+
+//--------------------------------------------------
+// Pop the last element from the stack
+// pStack - address of stack begin. This one elemnt 
+// must exist, and will never be deleted. 
+// bCleanup - flag: 1=cleanup the whole stack, 0=just the last element
+// return error code or ERR_OK
+// pLastElem - address for new elements pointer. 
+//   If not NULL then will be used to return the
+//   last element on stack.
+//--------------------------------------------------
+int ddocStackPopElement(ElementEntry* pStack, int bCleanup, 
+			ElementEntry** pLastElem);
+
+//--------------------------------------------------
+// Retrieve the current/last/stack top elements tag (localname)
+// pStack - address of stack begin.
+//--------------------------------------------------
+const xmlChar* ddocStackCurrentTag(ElementEntry* pStack);
+
+//--------------------------------------------------
+// Retrieve the current/last/stack top elements ns prefix
+// pStack - address of stack begin.
+//--------------------------------------------------
+const xmlChar* ddocStackCurrentNsPrefix(ElementEntry* pStack);
+
+//--------------------------------------------------
+// Retrieve the current/last/stack top elements ns prefix
+// pStack - address of stack begin.
+//--------------------------------------------------
+const xmlChar* ddocStackCurrentNsUri(ElementEntry* pStack);
+
+//--------------------------------------------------
+// Checks if there is a parent element with the given
+// localname on the stack.
+// pStack - address of stack begin.
+// return 1 if there is such a parent elem or 0 if not.
+//--------------------------------------------------
+int ddocStackHasParentWithName(ElementEntry* pStack, 
+			       const xmlChar* parentsName, ElementEntry* pCurrElem);
+
+//--------------------------------------------------
+// Checks if there is a parent element with the given
+// localname on the stack.
+// pStack - address of stack begin.
+// return 1 if there is such a parent elem or 0 if not.
+//--------------------------------------------------
+ElementEntry* ddocStackGetParentWithName(ElementEntry* pStack, 
+					 const xmlChar* parentsName, ElementEntry* pCurrElem);
+
+
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif // __DIGIDOC_STACK_H__