website/src/documentation/content/xdocs/tabs.xml

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 ! Licensed to the Apache Software Foundation (ASF) under one or more
 ! contributor license agreements.  See the NOTICE file distributed with
 ! this work for additional information regarding copyright ownership.
 ! The ASF licenses this file to You under the Apache License, Version 2.0
 ! (the "License"); you may not use this file except in compliance with
 ! the License.  You may obtain a copy of the License at
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 !      http://www.apache.org/licenses/LICENSE-2.0
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 ! distributed under the License is distributed on an "AS IS" BASIS,
 ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<!DOCTYPE tabs PUBLIC "-//APACHE//DTD Cocoon Documentation Tab V1.1//EN" "http://forrest.apache.org/dtd/tab-cocoon-v11.dtd">

<tabs software="PDFBox"
  title="PDFBox"
  copyright="www.pdfbox.org"
  xmlns:xlink="http://www.w3.org/1999/xlink">

  <!-- The rules for tabs are:
    @dir will always have '/@indexfile' added.
    @indexfile gets appended to @dir if the tab is selected. Defaults to 'index.html'
    @href is not modified unless it is root-relative and obviously specifies a
    directory (ends in '/'), in which case /index.html will be added
    If @id's are present, site.xml entries with a matching @tab will be in that tab.

   Tabs can be embedded to a depth of two. The second level of tabs will only
    be displayed when their parent tab is selected.
  -->

  <tab id="" label="Home" dir="." indexfile="index.html"/>
  <!--<tab id="samples" label="Samples" dir="samples" indexfile="sample.html">
    <tab id="samples-index" label="Index" dir="samples" indexfile="index.html"/>
    <tab id="samples-sample2" label="Sample2" dir="samples" indexfile="static.html"/>
  </tab>
  <tab label="Apache XML Projects" href="http://xml.apache.org">
    <tab label="Forrest" href="http://forrest.apache.org"/>
    <tab label="Xerces" href="http://xml.apache.org/xerces"/>
  </tab>-->
  <!-- Add new tabs here, eg:
  <tab label="How-Tos" dir="community/howto/"/>
  <tab label="XML Site" dir="xml-site/"/>
  -->

</tabs>