et of
legal values for attributes of type <code>ID</code> is much smaller than
for those of type <code>CDATA</code>, the type of the <code>name</code>
attribute has been changed to <code>NMTOKEN</code>. This attribute is 
constrained such that it can only have the same values as type
<code>ID</code>, or as the <code>Name</code> production in XML 1.0 Section
2.5, production 5. Unfortunately, this constraint cannot be expressed in the
XHTML 1.0 DTDs.  Because of this change, care must be taken when
converting