$FUNCNAME$
	ISFIELD()
$CATEGORY$
	INFO
$SUMMARY$
	Checks if a varialbe name is a field name of DB.
$LANG_RU$
	,       .
$SYNTAX$
     ISFIELD(<sVarName>) 	--> TRUE || FALSE
$ARGUMENTS$
     <sVarName>	String, is the variable name.
$LANG_RU$
     <sVarName>	String,  .
$RETURNS$
     Returns TRUE if a varialbe name is a field name of DB.
$LANG_RU$
      TRUE,       .
$DESCRIPTION$

	ISFIELD() returns TRUE if a varialbe name <sVarName> is a field name of DB.
$LANG_RU$

	ISFIELD()  TRUE,    <sVarName>    .
$EXAMPLES$

USE adressbook.dbf
...

if ISFIELD("NAME")
	qout('"NAME" is field of DB')
else
	qout("Error")
endif

$PLATFORMS$
   No dependies of platform.
   $LANG_RU$
      
$SEEALSO$
$AUTHOR$
ITK
   $LANG_RU$

$END$

