;&nbsp;&nbsp;Checks to make sure, during SAX processing of input document, that the
 incoming node is valid for the this (parent) node (e.g., checking to
 see that <code>fo:table</code> is not an immediate child of <code>fo:root</code>)
 called from <A HREF="../../../../../../org/apache/fop/fo/FOTreeBuilder.html#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)"><CODE>FOTreeBuilder.startElement(String, String, String, Attributes)</CODE></A>
 before constructing the c