Duplicate id removed

Doc/Sda1/dom.xml

@@ -819,7 +819,7 @@ Document contains 15 elements and 3 attributes.</programlisting>
               <para>Instead of transforming our <link
               linkend="simpleCatalog">simple catalog</link> into textual
               output in <xref linkend="domTreeTraversal"/> we may also create
-              <xref linkend="glo_XHTML" xml:id="glo_HTML"/> pages like:</para>
+              <xref linkend="glo_XHTML"/> pages like:</para>
 
               <programlisting language="xml">&lt;!DOCTYPE html&gt;
 &lt;!-- Static content section--&gt; <co