generalize HTML A, IMG, LINK
<my:crossReference
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:my="http://me.com/"
xlink:type="simple"
xlink:href="students.xml"
xlink:role="studentlist" xlink:title="Student List"
xlink:show="new" xlink:actuate="onRequest">
Current List of Students
</my:crossReference>
