###Function###
IsKeyword

###Description###
Checks if a variable is a keyword (for example, Default).

###Syntax###
IsKeyword ( variable )


###Parameters###
@@ParamTable@@
variable
	The variable to check.
@@End@@

###ReturnValue###
@@ReturnTable@@
Success:	$KEYWORD_DEFAULT (1) the Default keyword.
	$KEYWORD_NULL (2) the Null keyword.
Failure:	0 if not a keyword.
@@End@@


###Remarks###
$KEYWORD_* constants require #include <Constants.au3>
See <a href="../intro/lang_datatypes.htm">language datatypes</a> for a detailed description.


###Related###
Default, Null, VarGetType


###Example###
@@IncludeExample@@
