--- a/rule.js	Thu Sep 11 20:01:40 2014 +0300
+++ b/rule.js	Mon Sep 15 02:49:02 2014 +0300
@@ -1,5 +1,8 @@
 "use strict";
 
+/** @fileOverview Game/world rules. */
+
+/** @namespace */
 var board = {};
 board.create = function() {
     var brd = [];
@@ -77,6 +80,7 @@
     return {score: score, max: max};
 }
 
+/** @namespace */
 board.row = {};
 board.row.init = function() {
     return {stack: [], curr: 0};
@@ -100,6 +104,8 @@
     if (state.curr !== 0)
         state.stack.push(state.curr);
 }
+
+/** @namespace */
 board.move = {};
 board.move.up = board.move.upOrig = function(brd) {
     var updated = false;