Name: toggle_brief - toggle the display mode in a player

Syntax:
	toggle_brief()

Description:
	The toggle_brief call toggles the display mode in a player.

	If the player is in brief mode, it toggles to verbose mode.
	If the player is in verbose mode, it toggles to brief mode.

Return value: 1

Examples:
	this_player()->toggle_brief();

See also: helpdir/brief, player/query_brief