<xs:attribute name="id" type="xs:ID">
    <xs:annotation>
        <xs:documentation>
            <div>
                <h3>id (as an attribute name)</h3>
                <p>

       denotes an attribute whose value

       should be interpreted as if declared to be of type ID.

       This name is reserved by virtue of its definition in the

       xml:id specification.</p>
                <p>

      See <a href="http://www.w3.org/TR/xml-id/">http://www.w3.org/TR/xml-id/</a>

      for information about this attribute.

     </p>
            </div>
        </xs:documentation>
    </xs:annotation>
</xs:attribute>

• id
• nsA:id