nal function"> </A>ISERR		True if argument is error (XXX)</PRE>
<PRE><A NAME="Parse_7.htm_IX_ISNUMBER parse library internal function"> </A>ISNUMBER		True if argument is number (XXX)</PRE>
<PRE><A NAME="Parse_7.htm_IX_ISSTRING parse library internal function"> </A>ISSTRING		True if argument is string (XXX)</PRE>
<PRE><A NAME="Parse_7.htm_IX_LEFT parse library internal function"> </A>LEFT		Returns first characters in string (Two
		arguments: string, number of letters)</PRE>
<PRE><A NAME="Parse_7.htm_IX_LENGT