Unable to get the document 'title' and 'releaseinfo'

I have been able to customize the header and footer, but unable to put right information where I need.

Have tried to access them by these:
  <xsl:value-of  select="ancestor-or-self::d:book/d:info/d:title"/>
  <xsl:value-of  select="ancestor-or-self::book/info/title"/>
  <xsl:value-of  select="/book/info/title"/>

But result is always "empty" string...
DocBook 5 XML
<?xml version='1.0'?>
<!DOCTYPE book PUBLIC
    "-//OASIS//DTD DocBook V5.0//EN"
    "file:///D:/wrk/BookTest/docbook-5.0CR5/dtd/docbook.dtd" [
<!ENTITY nbsp               " ">
]>

<book
    lang        = "en"
    xmlns       = "http://docbook.org/ns/docbook" version="5.0"
    xmlns:xi    = "http://www.w3.org/2001/XInclude"
    xmlns:xsl   = "http://www.w3.org/1999/XSL/Transform"
    xmlns:xlink = "http://www.w3.org/1999/xlink">

    <info>
      <title>Book Title</title>
      <releaseinfo>Release Info</releaseinfo>
    </info>

    <chapter id="test">
      <info>
        <title>Test Chapter</title>
      </info>
      <para>
      simple test para
      </para>
    </chapter>
</book>

Customization XSL : Attached file test-headers.xsl

Command Used
fop-0.94\fop.bat -xml input\test\index.xml -xsl custom\test-header.xsl -pdf output\test\test.pdf

Result : Attached file test.pdf

Attachments:
test.pdf
test-header.xsl