"><CODE>Attr.isId()</CODE></A>.
 
 <p>
 The method may only be called by the startElement event of
 the <A HREF="../../../org/xml/sax/ContentHandler.html"><CODE>ContentHandler</CODE></A> that the application sets to the
 <A HREF="../../../javax/xml/validation/ValidatorHandler.html"><CODE>ValidatorHandler</CODE></A>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - The index of the attribute. The same index for
      the <A HREF="../../../org/xml/sax/Attributes.html"><CODE>Attributes</CODE></A> object 