yl_speak_up.stop_talking = function(pname)
	if(not(pname)) then
		return
	end
	yl_speak_up.edit_mode[pname] = nil
	yl_speak_up.speak_to[pname] = nil
	minetest.close_formspec(pname, "yl_speak_up:talk")
end


-- helper function for
-- 	yl_speak_up.get_fs_talkdialog and
-- 	yl_speak_up.check_and_add_as_generic_dialog
-- find the dialog with d_sort == 0 or lowest number
yl_speak_up.get_start_dialog_id = function(dialog)
	if(not(dialog) or not(dialog.n_dialogs)) then
		return nil
	end
	-- Find the dialog with d_sort = 0 or alternatively with the lowest number
	local lowest_sort = nil
	local d_id = nil
	for k, v in pairs(dialog.n_dialogs) do
		local nr = tonumber(v.d_sort)
		if(not(lowest_sort) or (nr and nr >= 0 and nr < lowest_sort)) then
			lowest_sort = nr
			d_id = k
		end
	end
	return d_id
end