><DD>true if its known, false if not.<DT><B>Overrides:</B><DD><A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html#isFunctionAvailable(java.lang.String)">isFunctionAvailable</A> in class <A HREF="../../../../org/apache/xalan/extensions/ExtensionHandler.html">ExtensionHandler</A></DL>
</DD>
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<A NAME="isElementAvailable(java.lang.String)"><!-- --></A><H3>
isElementAvailable</H3>
<PRE>
public boolean <B>isElementAvailable</B>(java.lang.String&nbsp;element)</PRE>
<DL>
<DD>Tests whet