Name: query_frog - get frog status from a living

Syntax:
	int query_frog()

Description:
	The query_frog call returns the frog status from a living.

Return value:
	1, if the living is a frog, 0 if not

Examples:
	int is_frog;
	is_frog=this_player()->query_frog();

See also: living/frog_curse