From the NannyMUD documentation

LAST CHANGE

2000-12-16

FUNCTION

NAME
        if-else - Run code conditionally.


SYNTAX
	if ( expression ) 

SYNTAX
	if ( expression )  else 

DESCRIPTION
	'if' is the simplest of all control structures, in the first
	form it runs the statement if the expression is true and in
	the second form it runs the first statement if the expression
	is true and the second if it is false.