 NodeList and NodeIterator,
 or should there be specific subclasses of it which do so? The
 advantage of doing it all here is that all NodeSets will respond
 to the same calls; the disadvantage is that some of them may return
 less-than-enlightening results when you do so.</p>
<P>
<DL>
<DT><B>Usage:</B><DD><i><font size="-1" color="#00FF00"> **For advanced use only**</font></i></DD>
</DD>
</DL>
<HR>

<P>
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