                            throw an exception.</DL>
</DD>
</DL>
<HR>

<A NAME="getFirstChildPos(int)"><!-- --></A><H3>
getFirstChildPos</H3>
<PRE>
public static int <B>getFirstChildPos</B>(int&nbsp;opPos)</PRE>
<DL>
<DD>Go to the first child of a given operation.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>opPos</CODE> - position of operation.<DT><B>Returns:</B><DD>The position of the first child of the operation.</DL>
</DD>
</DL>
<HR>

<A NAME="getArgLength(int)"><!-- --></A><H3>
getArgLength</H3>
<PRE>
publi