" width="1"><IMG alt="" border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif">
  <P>In addition to the constraints listed below for each particular extension, extension support
  in XSLTC also has the following limitations:</P>
  <OL>
  <LI><A href="extensions.html#ext-elements">Extension element</A> is not supported.
  The extension element mechanism is cl