diff --git a/ws/Docbook/CustomLayer/Common/common.xsl b/ws/Docbook/CustomLayer/Common/common.xsl
new file mode 100644
index 0000000000000000000000000000000000000000..3377e3c12a5502199e77fd6a9ef1ff40da8e5430
--- /dev/null
+++ b/ws/Docbook/CustomLayer/Common/common.xsl
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema"
+  xmlns:d="http://docbook.org/ns/docbook"
+  exclude-result-prefixes="d xs"
+  version="2.0">
+  
+  <xsl:variable name="n">
+    <xsl:text>
+</xsl:text>
+  </xsl:variable>
+  
+  
+  <xsl:param name="toggleDisplayScript">
+    <script xmlns="http://www.w3.org/1999/xhtml" type="text/javascript"> <!-- goiks extension head start -->
+      function toggleDisplay(inputEl) {
+      divElem = nextSibling(inputEl);
+      if (divElem.style.visibility == 'hidden') {
+      divElem.style.visibility = 'visible';
+      inputEl.setAttribute('value','-');
+      } else {
+      divElem.style.visibility = 'hidden';
+      inputEl.setAttribute('value','+');
+      }
+      }
+      function nextSibling(n) {
+      x=n.nextSibling;
+      while (x.nodeType!=1) {
+      x=x.nextSibling;
+      }
+      return x;
+      }
+    </script>
+  </xsl:param>
+  
+  <!--Allow for opening and closing of answers -->  
+  <xsl:template match="d:answer" priority="1">
+    <xsl:variable name="deflabel">
+      <xsl:apply-templates select="." mode="qanda.defaultlabel"/>
+    </xsl:variable>
+    
+    <tr>
+      <xsl:apply-templates select="." mode="common.html.attributes"/>
+      <xsl:call-template name="id.attribute"/>
+      <td align="{$direction.align.start}" valign="top">
+        <xsl:call-template name="anchor"/>
+        <xsl:variable name="answer.label">
+          <xsl:apply-templates select="." mode="label.markup"/>
+        </xsl:variable>
+        <xsl:if test="string-length($answer.label) &gt; 0">
+          <p><strong>
+            <xsl:copy-of select="$answer.label"/>
+          </strong></p>
+        </xsl:if>
+      </td>
+      <td align="{$direction.align.start}" valign="top">
+        <input onclick="toggleDisplay(this)" type="button" value="+"/> <!--goik: start "header" clickable answer modification -->
+        <div style="visibility:hidden;">                               <!--goik: end "header" clickable answer modification -->
+          <xsl:apply-templates select="*[local-name(.) != 'label'         and local-name(.) != 'qandaentry']"/>
+          <!-- * handle nested answer/qandaentry instances -->
+          <!-- * (bug 1509043 from Daniel Leidert) -->
+          <xsl:if test="descendant::d:question">
+            <xsl:call-template name="process.qandaset"/>
+          </xsl:if>
+        </div>                                                         <!--goik: "footer" clickable answer modification -->        
+      </td>
+    </tr>
+  </xsl:template>  
+</xsl:stylesheet>
\ No newline at end of file
diff --git a/ws/Docbook/CustomLayer/epub/chunkHdm.xsl b/ws/Docbook/CustomLayer/epub/chunkHdm.xsl
new file mode 100644
index 0000000000000000000000000000000000000000..2a593083f047fdccbac36e9ea45c01001e78f331
--- /dev/null
+++ b/ws/Docbook/CustomLayer/epub/chunkHdm.xsl
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsl:stylesheet 
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns:exsl="http://exslt.org/common"
+  xmlns:epub="http://www.idpf.org/2007/ops"
+  exclude-result-prefixes="exsl d"
+  version="1.0">
+
+
+  <xsl:import href="hdmextensions.xsl"/>
+    
+  <xsl:import href="../../docbook-xsl/xhtml/chunk-common.xsl"/>
+  <xsl:import href="../../docbook-xsl/xhtml/highlight.xsl"/>
+  
+  <xsl:include href="../../docbook-xsl/xhtml/chunk-code.xsl"/>
+  
+  <xsl:include href="../../docbook-xsl/epub3/epub3-chunk-mods.xsl"/>
+  
+  
+</xsl:stylesheet>
diff --git a/ws/Docbook/CustomLayer/epub/hdmextensions.xsl b/ws/Docbook/CustomLayer/epub/hdmextensions.xsl
new file mode 100644
index 0000000000000000000000000000000000000000..f6a2393cda90118e969491a90a032a72f5c8db59
--- /dev/null
+++ b/ws/Docbook/CustomLayer/epub/hdmextensions.xsl
@@ -0,0 +1,305 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns:m="http://www.w3.org/1998/Math/MathML"
+  xmlns="http://www.w3.org/1999/xhtml"
+  exclude-result-prefixes="d m"
+  version="1.1">
+  
+  <xsl:import href="../../docbook-xsl/xhtml5/docbook.xsl"/>
+  <xsl:import href="../../docbook-xsl/epub3/epub3-element-mods.xsl"/>
+  <xsl:include href="../Common/common.xsl"/>  
+  
+  <xsl:template name="user.head.content">
+    <xsl:param name="node"/>
+    <xsl:copy-of select="$toggleDisplayScript"/>    
+  </xsl:template>
+  
+  <!-- avoid namespace prefix since some epub readers get confused. Credits to
+    http://stackoverflow.com/questions/16810039/how-to-remove-namespace-prefix-leaving-namespace-value-xslt
+  -->
+  <xsl:template match="m:math[not(@alttext)]" priority="2">
+    <xsl:element name="{local-name()}" namespace="http://www.w3.org/1998/Math/MathML">
+      <xsl:attribute name="alttext">math formula</xsl:attribute>
+      <xsl:copy-of select="@*"/>
+      <xsl:apply-templates/>
+    </xsl:element>
+  </xsl:template>
+  
+  <xsl:template match="m:*" priority="1">
+    <xsl:element name="{local-name()}" namespace="http://www.w3.org/1998/Math/MathML">
+      <xsl:copy-of select="@*"/>
+      <xsl:apply-templates/>
+    </xsl:element>
+  </xsl:template>
+  
+  <xsl:template match="d:videoobject" priority="1">
+    <video controls="controls" preload="auto">
+      <xsl:attribute name="title">
+        <xsl:value-of select="normalize-space(../../d:title)"/>
+      </xsl:attribute>
+      
+      <xsl:variable name="hdm_ImageFilename"> <!-- hdm_ prefix: do not mess with docbook! -->
+        <xsl:call-template name="mediaobject.filename">
+          <xsl:with-param name="object" select="."/>
+        </xsl:call-template>
+      </xsl:variable>
+      <source src="{$hdm_ImageFilename}.mp4" type='video/mp4'/>
+      <xsl:text>Your Browser does not support the video tag</xsl:text>
+    </video>
+  </xsl:template>
+  
+  <!-- Correct package.opf manifest file -->
+  <xsl:template match="*" mode="package.manifest" priority="1">
+    
+    <xsl:variable name="is.chunk">
+      <xsl:call-template name="chunk">
+        <xsl:with-param name="node" select="."/>
+      </xsl:call-template>
+    </xsl:variable>
+    
+    <xsl:if test="$is.chunk != 0">
+      <xsl:variable name="href">
+        <xsl:call-template name="href.target.with.base.dir">
+          <xsl:with-param name="context" select="/"/>
+        </xsl:call-template>
+      </xsl:variable>
+      
+      <xsl:variable name="id" select="concat($epub.package.id.prefix, generate-id())"/>
+      
+      <xsl:variable name="properties.set">
+        <xsl:call-template name="svg.property"/>
+        <xsl:text> </xsl:text>
+        <xsl:call-template name="mathml.property"/>
+        <xsl:text> scripted</xsl:text>
+      </xsl:variable>
+      
+      <xsl:variable name="properties" select="normalize-space($properties.set)"/>
+      
+      <xsl:element namespace="{$opf.namespace}" name="item">
+        <xsl:attribute name="id">
+          <xsl:value-of select="$id"/>
+        </xsl:attribute>
+        <xsl:attribute name="href">
+          <xsl:value-of select="$href"/>
+        </xsl:attribute>
+        <xsl:attribute name="media-type">application/xhtml+xml</xsl:attribute>
+        <xsl:if test="string-length($properties) != 0">
+          <xsl:attribute name="properties">
+            <xsl:value-of select="$properties"/>
+          </xsl:attribute>
+        </xsl:if>
+      </xsl:element>
+    </xsl:if>  
+    <xsl:apply-templates mode="package.manifest"/>
+    
+  </xsl:template>
+  
+  <!-- Provide supplementary items for package.opf file -->
+  
+
+  <xsl:template name="targetComment">
+    <xsl:param name="comment"/>
+    <xsl:value-of select="$n"/>
+    <xsl:value-of select="$n"/>
+    <xsl:comment>
+      <xsl:value-of select="$comment"/>
+    </xsl:comment>
+  </xsl:template>
+  
+  
+  <xsl:template name="manifest.toc" priority="1">
+    <xsl:variable name="toc.params">
+      <xsl:call-template name="find.path.params">
+        <xsl:with-param name="node" select="."/>
+        <xsl:with-param name="table" select="normalize-space($generate.toc)"/>
+      </xsl:call-template>
+    </xsl:variable>
+    
+    <xsl:if test="contains($toc.params, 'toc')">
+      <xsl:element namespace="{$opf.namespace}" name="item">
+        <xsl:attribute name="id">
+          <xsl:value-of select="$epub.html.toc.id"/>
+        </xsl:attribute>
+        <xsl:attribute name="properties">nav scripted</xsl:attribute>
+        <xsl:attribute name="media-type">
+          <xsl:value-of select="$epub.xhtml.mediatype"/>
+        </xsl:attribute>
+        <xsl:attribute name="href">
+          <xsl:call-template name="toc-href">
+            <xsl:with-param name="node" select="."/>
+          </xsl:call-template>
+        </xsl:attribute>        
+      </xsl:element>
+    </xsl:if>  
+  </xsl:template>
+  
+  
+  <xsl:template name="user.manifest.items" priority="1">
+    
+    <xsl:call-template name="targetComment">
+      <xsl:with-param name="comment" select="'Derived video data'"/>
+    </xsl:call-template>    
+    <xsl:apply-templates select="//d:videodata" mode="hdmuserOpf"/>
+    
+    <xsl:call-template name="targetComment">
+      <xsl:with-param name="comment" select="'Docbook distribution icons'"/>
+    </xsl:call-template>    
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-002" href="images/prev.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-003" href="images/tip.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-004" href="images/callouts/5.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-005" href="images/callouts/2.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-006" href="images/callouts/8.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-007" href="images/callouts/14.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-008" href="images/callouts/10.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-009" href="images/callouts/13.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-010" href="images/callouts/12.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-011" href="images/callouts/11.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-012" href="images/callouts/9.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-013" href="images/callouts/15.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-014" href="images/callouts/7.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-015" href="images/callouts/3.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-016" href="images/callouts/1.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-017" href="images/callouts/4.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-018" href="images/callouts/6.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-019" href="images/caution.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-020" href="images/up.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-021" href="images/warning.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-022" href="images/note.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-023" href="images/important.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-024" href="images/next.gif" media-type="image/gif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-025" href="images/home.gif" media-type="image/gif"/>
+    
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-100" href="images/tip.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-101" href="images/prev.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-102" href="images/callouts/21.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-103" href="images/callouts/3.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-104" href="images/callouts/15.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-105" href="images/callouts/19.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-106" href="images/callouts/18.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-107" href="images/callouts/9.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-108" href="images/callouts/4.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-109" href="images/callouts/24.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-110" href="images/callouts/6.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-111" href="images/callouts/29.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-112" href="images/callouts/27.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-113" href="images/callouts/16.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-114" href="images/callouts/12.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-115" href="images/callouts/17.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-116" href="images/callouts/30.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-117" href="images/callouts/22.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-118" href="images/callouts/20.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-119" href="images/callouts/28.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-120" href="images/callouts/26.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-121" href="images/callouts/10.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-122" href="images/callouts/11.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-123" href="images/callouts/14.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-124" href="images/callouts/7.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-125" href="images/callouts/8.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-126" href="images/callouts/5.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-127" href="images/callouts/23.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-128" href="images/callouts/13.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-129" href="images/callouts/25.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-130" href="images/callouts/2.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-131" href="images/callouts/1.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-132" href="images/draft.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-133" href="images/note.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-134" href="images/colorsvg/tip.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-135" href="images/colorsvg/prev.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-136" href="images/colorsvg/note.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-137" href="images/colorsvg/important.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-138" href="images/colorsvg/up.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-139" href="images/colorsvg/caution.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-140" href="images/colorsvg/next.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-141" href="images/colorsvg/home.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-142" href="images/colorsvg/warning.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-143" href="images/important.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-144" href="images/up.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-145" href="images/caution.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-146" href="images/next.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-147" href="images/home.svg" media-type="image/svg"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-148" href="images/warning.svg" media-type="image/svg"/>
+    
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-200" href="images/prev.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-201" href="images/draft.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-202" href="images/warning.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-203" href="images/up.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-204" href="images/tip.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-205" href="images/note.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-206" href="images/callouts/4.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-207" href="images/callouts/15.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-208" href="images/callouts/3.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-209" href="images/callouts/2.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-210" href="images/callouts/7.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-211" href="images/callouts/5.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-212" href="images/callouts/14.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-213" href="images/callouts/8.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-214" href="images/callouts/11.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-215" href="images/callouts/13.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-216" href="images/callouts/9.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-217" href="images/callouts/12.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-218" href="images/callouts/6.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-219" href="images/callouts/10.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-220" href="images/callouts/1.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-221" href="images/toc-blank.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-222" href="images/next.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-223" href="images/toc-plus.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-224" href="images/important.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-225" href="images/blank.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-226" href="images/home.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-227" href="images/annot-close.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-228" href="images/caution.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-229" href="images/annot-open.png" media-type="image/png"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-230" href="images/toc-minus.png" media-type="image/png"/>
+    
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-300" href="images/caution.tif" media-type="image/tif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-301" href="images/important.tif" media-type="image/tif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-302" href="images/warning.tif" media-type="image/tif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-303" href="images/note.tif" media-type="image/tif"/>
+    <item xmlns="http://www.idpf.org/2007/opf"  id="dbook-icons-304" href="images/tip.tif" media-type="image/tif"/>
+        
+  </xsl:template>
+  
+  <xsl:template match="d:videodata" mode="hdmuserOpf">
+    <xsl:variable name="baseFileName">
+      <xsl:call-template name="relative-uri">
+        <xsl:with-param name="filename" select="@fileref"/>
+      </xsl:call-template>
+    </xsl:variable>
+
+    <xsl:element namespace="{$opf.namespace}" name="item">
+      <xsl:attribute name="id">
+        <xsl:value-of select="generate-id()"/>
+        <xsl:text>-HDMEXTRA-mp4</xsl:text>
+      </xsl:attribute>
+      <xsl:attribute name="href">
+        <xsl:value-of select="$baseFileName"/>
+        <xsl:text>.mp4</xsl:text>
+      </xsl:attribute>
+      <xsl:attribute name="media-type">video/mp4</xsl:attribute>
+    </xsl:element>
+
+    <xsl:element namespace="{$opf.namespace}" name="item">
+      <xsl:attribute name="id">
+        <xsl:value-of select="generate-id()"/>
+        <xsl:text>-HDMEXTRA-png</xsl:text>
+      </xsl:attribute>
+      <xsl:attribute name="href">
+        <xsl:value-of select="$baseFileName"/>
+        <xsl:text>.png</xsl:text>
+      </xsl:attribute>
+      <xsl:attribute name="media-type">video/mp4</xsl:attribute>
+    </xsl:element>
+  </xsl:template>
+  
+  <xsl:template match="*" mode="hdmuserOpf">
+    <xsl:text>ERROR: No template available for element '</xsl:text>
+    <xsl:value-of select="name(.)"/>
+    <xsl:text>' in opf mode.</xsl:text>
+  </xsl:template>
+  
+  <!--  <xsl:template match="d:imagedata" mode="hdmuserOpf">
+    </xsl:template>
+    
+  -->  
+</xsl:stylesheet>
diff --git a/ws/Docbook/CustomLayer/webhelp/hdmextensions.xsl b/ws/Docbook/CustomLayer/webhelp/hdmextensions.xsl
index 48822ee0c368d6ccea3cb36eaaa41ea9b590c5d8..a10d49d7c81a562c310c0ece235bce9de9612731 100644
--- a/ws/Docbook/CustomLayer/webhelp/hdmextensions.xsl
+++ b/ws/Docbook/CustomLayer/webhelp/hdmextensions.xsl
@@ -6,28 +6,12 @@
   exclude-result-prefixes="d"
   version="1.1">
   
+  <xsl:import href="../Common/common.xsl"/>
+  
   <xsl:template name="user.webhelp.head.content">
     <xsl:param name="node"/>
     
-          <script type="text/javascript"> <!-- goiks extension head start -->
-          function toggleDisplay(inputEl) {
-            divElem = nextSibling(inputEl);
-            if (divElem.style.visibility == 'hidden') {
-              divElem.style.visibility = 'visible';
-              inputEl.setAttribute('value','-');
-            } else {
-              divElem.style.visibility = 'hidden';
-              inputEl.setAttribute('value','+');
-            }
-          }
-          function nextSibling(n) {
-            x=n.nextSibling;
-            while (x.nodeType!=1) {
-              x=x.nextSibling;
-            }
-          return x;
-          }
-            </script>
+    <xsl:copy-of select="$toggleDisplayScript"/>
     
     <xsl:if test="//m:math">
       <script type="text/x-mathjax-config">MathJax.Hub.Config({tex2jax: {inlineMath: [['$','$'], ['\\(','\\)']]}});</script>
@@ -44,44 +28,8 @@
         src='{$webhelp.common.dir}images/hdmlogo.svg' alt="{$brandname} Documentation"/>
     </a>
   </xsl:template>
-  
-  
-  <!--Allow for opening and closing of answers -->
-  
-  <xsl:template match="d:answer">
-    <xsl:variable name="deflabel">
-      <xsl:apply-templates select="." mode="qanda.defaultlabel"/>
-    </xsl:variable>
-    
-    <tr>
-      <xsl:apply-templates select="." mode="common.html.attributes"/>
-      <xsl:call-template name="id.attribute"/>
-      <td align="{$direction.align.start}" valign="top">
-        <xsl:call-template name="anchor"/>
-        <xsl:variable name="answer.label">
-          <xsl:apply-templates select="." mode="label.markup"/>
-        </xsl:variable>
-        <xsl:if test="string-length($answer.label) &gt; 0">
-          <p><strong>
-            <xsl:copy-of select="$answer.label"/>
-          </strong></p>
-        </xsl:if>
-      </td>
-      <td align="{$direction.align.start}" valign="top">
-        <input onclick="toggleDisplay(this)" type="button" value="+"/> <!--goik: start "header" clickable answer modification -->
-        <div style="visibility:hidden;">                               <!--goik: end "header" clickable answer modification -->
-          <xsl:apply-templates select="*[local-name(.) != 'label'         and local-name(.) != 'qandaentry']"/>
-        <!-- * handle nested answer/qandaentry instances -->
-        <!-- * (bug 1509043 from Daniel Leidert) -->
-        <xsl:if test="descendant::d:question">
-          <xsl:call-template name="process.qandaset"/>
-        </xsl:if>
-        </div>                                                         <!--goik: "footer" clickable answer modification -->        
-      </td>
-    </tr>
-  </xsl:template>
-  
-  
+
+  <!-- copy mathml to output -->
   <xsl:template match="m:*">
     <xsl:element name="{local-name()}">
       <xsl:copy-of select="@*"/>
@@ -103,6 +51,7 @@
       
       <source src="{$hdm_ImageFilename}" type='video/webm' />
       <source src="{$hdm_ImageFilename}.mp4" type='video/mp4'/>
+      <xsl:text>Your Browser does not support the video tag</xsl:text>
     </video>
   </xsl:template>
   
diff --git a/ws/Docbook/Extensions/Tdata/Makefile b/ws/Docbook/Extensions/Tdata/Makefile
index 1684cdb6c513660762dd5662b313b08bed9aec35..dc7a86fe22d6669591e491c3a801d774b06cf772 100644
--- a/ws/Docbook/Extensions/Tdata/Makefile
+++ b/ws/Docbook/Extensions/Tdata/Makefile
@@ -17,6 +17,7 @@ DBOOK_XSL_PREPROCESS=${DBOOK}/Preprocess
 
 # Common Docbook transformation parameter
 dbookXslCommonParam=\
+keep.relative.image.uris=0 \
 callout.graphics=0 \
 callout.unicode=1 \
 graphicsize.use.img.src.path=1 \
@@ -29,6 +30,7 @@ dbookXslSlideParam=${dbookXslCommonParam}
 
 # Epub related Docbook transformation parameter
 dbookXslEpubParam=${dbookXslCommonParam} \
+generate.manifest=1 \
 base.dir=target/epub
 
 # Webhelp related Docbook transformation parameter
@@ -68,7 +70,6 @@ ${BUILDROOT_SRC}/${SCRIPTBASENAME}.xml: ${SCRIPTBASENAME}.xml
 	mkdir -p ${BUILDROOT_SRC};  ln -sf /usr/share/hdmwebhelp/extern ${BUILDROOT}
 	 ${SAXONCMD} -s:$< \
             -xsl:${DBOOK_XSL_PREPROCESS}/Xsl/docbook2docbook.xsl >  ${BUILDROOT_SRC}/${SCRIPTBASENAME}.xml
-
 	${SAXONCMD} -s:${BUILDROOT_SRC}/${SCRIPTBASENAME}.xml \
            -xsl:${DBOOK_XSL_PREPROCESS}/Xsl/docbook2html.xsl >  ${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml
 	 ${SAXONCMD} -s:${BUILDROOT_SRC}/${SCRIPTBASENAME}.xml \
@@ -76,23 +77,13 @@ ${BUILDROOT_SRC}/${SCRIPTBASENAME}.xml: ${SCRIPTBASENAME}.xml
 	cd ${BUILDROOT_SRC}; ${SAXONCMD} -s:${SCRIPTBASENAME}.xml -xsl:${DBOOK_XSL_PREPROCESS}/Xsl/docbookExtractFig.xsl
 	mkdir -p ${BUILDROOT_SRC}/Resources; tar cv- `find . -name Ref -and -type d|grep -v ^\./target`|tar -x -C ${BUILDROOT_SRC}/Resources
 	cp ${DBOOK_XSL_PREPROCESS}/make.image  ${BUILDROOT_SRC}
-	cd  ${BUILDROOT_SRC}/Resources; $(MAKE) -f ../make.image
-
-epub: ${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml
-	java -cp "/usr/share/java/saxon.jar:/usr/share/java/xslthl-2.1.3.jar" \
-          '-Dxslthl.config=file://${DBOOK_XSL}/highlighting/xslthl-config.xml' \
-          com.icl.saxon.StyleSheet \
-          $< ${DBOOK_XSL_CUSTOM}/epub/chunkHdm.xsl ${dbookXslEpubParam}
-	rsync -av --delete ${BUILDROOT_SRC}/_Resources ${BUILDROOT_EPUB}/OEBPS
-	rsync -av --delete ${DBOOK_XSL}/images ${BUILDROOT_EPUB}/OEBPS     # Images, Css
-	cat ${DBOOK_XSL_CUSTOM}/webhelp/common/css/positioning.css >> ${BUILDROOT_EPUB}/OEBPS/docbook-epub.css 
-	cd ${BUILDROOT_EPUB}; zip -rX ${SCRIPTBASENAME}.epub mimetype META-INF OEBPS _Resources
+	cd  ${BUILDROOT_SRC}/Resources; $(MAKE) -f ../make.image; rm -rf `find . -name Generate`
 
 webhelp:${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml
 	java -cp "/usr/share/java/saxon.jar:/usr/share/java/xslthl-2.1.3.jar" \
           '-Dxslthl.config=file://${DBOOK_XSL}/highlighting/xslthl-config.xml' \
           com.icl.saxon.StyleSheet \
-            ${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml ${DBOOK_XSL_CUSTOM}/webhelp/webhelpHdm.xsl keep.relative.image.uris=0 ${dbookXslWebhelpParam}
+            ${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml ${DBOOK_XSL_CUSTOM}/webhelp/webhelpHdm.xsl ${dbookXslWebhelpParam}
 	cd ${BUILDROOT_SRC}/Resources; rsync -av * ${DIR}/${BUILDROOT_WEBHELP}
 	cp -r ${DBOOK_XSL}/webhelp/template/* ${BUILDROOT_WEBHELP}     # Images, Css
 	cat ${DBOOK_XSL_CUSTOM}/webhelp/common/css/positioning.supp.css >> ${BUILDROOT_WEBHELP}/common/css/positioning.css  # highlighting supplements
@@ -112,6 +103,16 @@ webhelp:${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml
           -cp '${DBOOK_XSL}/extensions/webhelpindexer.jar:${DBOOK_XSL}/extensions/lucene-analyzers-3.0.0.jar:${DBOOK_XSL}/extensions/lucene-core-3.0.0.jar:${DBOOK_XSL}/extensions/tagsoup-1.2.1.jar' \
            com.nexwave.nquindexer.IndexerMain
 
+epub: ${BUILDROOT_SRC}/${SCRIPTBASENAME}_html.xml
+	java -cp "/usr/share/java/saxon.jar:/usr/share/java/xslthl-2.1.3.jar" \
+          '-Dxslthl.config=file://${DBOOK_XSL}/highlighting/xslthl-config.xml' \
+          com.icl.saxon.StyleSheet \
+          $< ${DBOOK_XSL_CUSTOM}/epub/chunkHdm.xsl ${dbookXslEpubParam}
+	rsync -av --delete ${BUILDROOT_SRC}/Resources/* ${BUILDROOT_EPUB}/OEBPS
+	rsync -av --delete ${DBOOK_XSL}/images ${BUILDROOT_EPUB}/OEBPS     # Images, Css
+	cat ${DBOOK_XSL_CUSTOM}/webhelp/common/css/positioning.supp.css >> ${BUILDROOT_EPUB}/OEBPS/docbook-epub.css # highlighting supplements
+	cd ${BUILDROOT_EPUB}; zip -rX ${SCRIPTBASENAME}.epub mimetype META-INF OEBPS
+
 slides: ${BUILDROOT}/src/${SCRIPTBASENAME}_html.xml
 	cd ${BUILDROOT}; ${SAXONCMD} -s:../$< -xsl:${DBOOK_XSL_CUSTOM}/slide/slideHdm.xsl ${dbookXslSlideParam}
 	ln -sf /usr/share/reveal.js ${BUILDROOT}/Slides; ln -sf ../src/_Resources  ${BUILDROOT}/Slides
diff --git a/ws/Docbook/Extensions/Tdata/fig.xml b/ws/Docbook/Extensions/Tdata/fig.xml
index a9d7167eab0b1299b946a5fcf13ae238e2075ec2..78c8c8e23622600eb37704752f60118c78fe334b 100644
--- a/ws/Docbook/Extensions/Tdata/fig.xml
+++ b/ws/Docbook/Extensions/Tdata/fig.xml
@@ -19,7 +19,7 @@
       </affiliation>
     </author>
 
-    <pubdate>27.02.2017</pubdate>
+    <pubdate>2017-02-27</pubdate>
   </info>
 
   <preface>
diff --git a/ws/Docbook/Preprocess/Xsl/docbook2html.xsl b/ws/Docbook/Preprocess/Xsl/docbook2html.xsl
index 770e764999705455cc61c06741f24c3eee3e5460..1bdd977d18f4e3120e2578e854b70f4208ee6fd9 100644
--- a/ws/Docbook/Preprocess/Xsl/docbook2html.xsl
+++ b/ws/Docbook/Preprocess/Xsl/docbook2html.xsl
@@ -1,68 +1,78 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns="http://docbook.org/ns/docbook" xmlns:db="http://docbook.org/ns/docbook">
-    
-    <xsl:include href="common.xsl"/>
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  xmlns="http://docbook.org/ns/docbook" xmlns:db="http://docbook.org/ns/docbook">
+  
+  <xsl:import href="../../docbook-xsl/xhtml/chunk.xsl"/>
+  <xsl:include href="common.xsl"/>
+  
+  <xsl:output indent="no"/>
+  
+  <xsl:template match="@* | node()">
+    <xsl:copy>
+      <xsl:apply-templates select="node()| @*"/>
+    </xsl:copy>
+  </xsl:template>
+  
+  
+  <xsl:template match="db:figure[db:mediaobject/db:imageobject]/db:title">
     
-    <xsl:output indent="no"/>
+    <xsl:copy>
+      <xsl:apply-templates select="@* | node()"/>
+    </xsl:copy>
     
-    <xsl:template match="@* | node()">
-        <xsl:copy>
-          <xsl:apply-templates select="node()| @*"/>
-        </xsl:copy>
-    </xsl:template>
+    <xsl:if test="ends-with(parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref, '.fig')">
+      <para>
+        <uri>
+          <xsl:attribute name="xlink:href">
+            <xsl:call-template name="hdm.get.leftmost.of.separator">
+              <xsl:with-param name="path">
+                <xsl:call-template name="relative-uri">
+                  <xsl:with-param name="filename" select="parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref"/>
+                </xsl:call-template>
+              </xsl:with-param> 
+              <xsl:with-param name="separator" select="'.'"/>
+            </xsl:call-template>                  
+            <xsl:text>.animate.pdf</xsl:text>
+          </xsl:attribute>
+          <xsl:text>(Animated PDF Version)</xsl:text>
+        </uri>
+      </para>
+    </xsl:if>
     
+    <xsl:if test="ends-with(parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref, '.svg')">
+      <para>
+        <uri>
+          <xsl:attribute name="xlink:href">
+            <xsl:call-template name="relative-uri">
+              <xsl:with-param name="filename" select="parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref"/>
+            </xsl:call-template>
+          </xsl:attribute>
+          <xsl:text>Separate SVG image link</xsl:text>
+        </uri>
+      </para>
+    </xsl:if>
     
-    <xsl:template match="db:figure[db:mediaobject/db:imageobject]/db:title">
-        
-        <xsl:copy>
-            <xsl:apply-templates select="@* | node()"/>
-        </xsl:copy>
-
-        <xsl:if test="ends-with(parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref, '.fig')">
-            <para>
-                <uri>
-                    <xsl:attribute name="xlink:href">
-                        <xsl:call-template name="hdm.get.leftmost.of.separator">
-                            <xsl:with-param name="path" 
-                                select="parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref"/>
-                            <xsl:with-param name="separator" select="'.'"/>
-                        </xsl:call-template>                  
-                        <xsl:text>.annotated.pdf</xsl:text>
-                    </xsl:attribute>
-                    <xsl:text>(Animated PDF Version)</xsl:text>
-                </uri>
-            </para>
-        </xsl:if>
-        
-        <xsl:if test="ends-with(parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref, '.svg')">
-            <para>
-                <uri xlink:href="{parent::db:figure/db:mediaobject/db:imageobject/db:imagedata/@fileref}"
-                    >Separate SVG image link</uri>
-            </para>
-        </xsl:if>
-        
-    </xsl:template>
+  </xsl:template>
   
   <xsl:template match="db:imagedata[ends-with(@fileref, '.fig')]">
-
-      <xsl:copy>
-        <xsl:attribute name="fileref">
-          <xsl:value-of select="@fileref"/>
-          <xsl:text>.svg</xsl:text>
-        </xsl:attribute>
-        <xsl:apply-templates select="@*[not(name(.) = 'fileref')] | node()"/>
-      </xsl:copy>
-
-  </xsl:template>
     
-    <xsl:template match="db:annotation[@role='slide']">
-        <db:para>
-            <db:link xlink:href="../Slides/{parent::db:*/@xml:id}.html">
-                <xsl:text>Slide version of this section</xsl:text>
-            </db:link>
-        </db:para>
-    </xsl:template>
+    <xsl:copy>
+      <xsl:attribute name="fileref">
+        <xsl:value-of select="@fileref"/>
+        <xsl:text>.svg</xsl:text>
+      </xsl:attribute>
+      <xsl:apply-templates select="@*[not(name(.) = 'fileref')] | node()"/>
+    </xsl:copy>
     
+  </xsl:template>
+  
+  <xsl:template match="db:annotation[@role='slide']">
+    <db:para>
+      <db:link xlink:href="../Slides/{parent::db:*/@xml:id}.html">
+        <xsl:text>Slide version of this section</xsl:text>
+      </db:link>
+    </db:para>
+  </xsl:template>
+  
 </xsl:stylesheet>
diff --git a/ws/Docbook/Preprocess/make.image b/ws/Docbook/Preprocess/make.image
index 24e3e7a2e99aee7ccedbbceed6d8f818734d54b8..2de0c9f2920a269c5eee91cdc6d39143414d9077 100644
--- a/ws/Docbook/Preprocess/make.image
+++ b/ws/Docbook/Preprocess/make.image
@@ -6,13 +6,12 @@ include ../mediaobjects.list
 	cd $(@D)/..; env R=`echo $(@D)|sed -e s/\\\\/Generate//` perl -i -p -e 's/0[ ]([^ \/]+).(eps|png|jpg)/0 ${MYWD}\/$$ENV{'R'}\/$$1.$$2/g' $(*F).fig
 	cd $(@D)/..; fig2pdf --nogv $(*F).fig; mv $(*F).pdf $(*F).fig.pdf
 	cd $(@D); fig2mpdf -l -m ../$(*F).fig
-	cd $(@D)/..;pdflatex Generate/$(*F) 
+	cd $(@D)/..;pdflatex Generate/$(*F); rm -f $(*F).toc $(*F).log $(*F).nav $(*F).aux $(*F).snm $(*F).out  
 
 %.fig.pdf %.fig.svg:%.fig
 	cd $(@D); fig2pdf --nogv $(*F).fig; pdf2svg $(*F).pdf $(*F).fig.svg ;  mv $(*F).pdf $(*F).fig.pdf
 	cd $(@D)/Generate; fig2mpdf -l -m ../$(*F).fig
-	cd $(@D); pdflatex Generate/$(*F); mv $(*F).pdf $(*F).animate.pdf
-
+	cd $(@D); pdflatex Generate/$(*F); mv $(*F).pdf $(*F).animate.pdf; rm -f $(*F).toc $(*F).log $(*F).nav $(*F).aux $(*F).snm $(*F).out
 
 %.webm.mp4:%.webm
 	avconv -y -i $< -vcodec libx264 -acodec aac -strict -2 -r 10 $<.mp4