<xsd:attributeGroup id="attGp.fromType" name="fromType">
    <xsd:attribute id="att.fromType" name="fromType" type="xmlElementType">
        <xsd:annotation>
            <xsd:documentation>
                <h:div class="summary" xmlns:h="http://www.w3.org/1999/xhtml">The type of the base of a link.</h:div>
                <h:div class="description" xmlns:h="http://www.w3.org/1999/xhtml">
                    <h:p>The local tagname of the referenced element (e.g. 'molecule' or 'peakGroup'). This acts as a partial check on the integrity of the link. Software can assume that the referenced element is of a given tytpe and can create an object supporting that type. </h:p>
                    <h:p>This attribute can be attached to the 'map' attribute and requires all contained links to be of this type. This can be overridden by a 'toType' attribute on indivdual links, but it may also be useful to split the map into maps od different link types.</h:p>
                </h:div>
                <h:div class="curation" xmlns:h="http://www.w3.org/1999/xhtml">2005-06-18: created</h:div>
            </xsd:documentation>
        </xsd:annotation>
    </xsd:attribute>
</xsd:attributeGroup>