diff --git a/build/nodegame-window.js b/build/nodegame-window.js
index 3624410..874f941 100644
--- a/build/nodegame-window.js
+++ b/build/nodegame-window.js
@@ -1,6 +1,6 @@
 /**
  * # GameWindow
- * Copyright(c) 2021 Stefano Balietti <ste@nodegame.org>
+ * Copyright(c) 2023 Stefano Balietti <ste@nodegame.org>
  * MIT Licensed
  *
  * API to interface nodeGame with the browser window
@@ -1346,6 +1346,7 @@
      */
     GameWindow.prototype.preCacheTest = function(cb, uri) {
         var iframe, iframeName;
+
         uri = uri || '/pages/testpage.htm';
         if ('string' !== typeof uri) {
             throw new TypeError('GameWindow.precacheTest: uri must string ' +
@@ -1372,8 +1373,15 @@
             catch(e) {
                 W.cacheSupported = false;
             }
+            // It's possible that it was already removed if two calls
+            // to preCacheTest are made one after the other.
+            try {
+                document.body.removeChild(iframe);
+            }
+            catch(e) {
+                node.warn('W.preCacheTest: iframe already removed');
+            }
 
-            document.body.removeChild(iframe);
             if (cb) cb();
         });
     };
@@ -1599,9 +1607,8 @@
     GameWindow.prototype.loadFrame = function(uri, func, opts) {
         var that;
         var loadCache;
-        var storeCacheNow, storeCacheLater;
+        var shouldTestCache, storeCacheNow, storeCacheLater;
         var scrollUp;
-        var autoParse, autoParsePrefix, autoParseMod;
         var iframe, iframeName, iframeDocument, iframeWindow;
         var frameDocumentElement, frameReady;
         var lastURI;
@@ -1658,6 +1665,7 @@
                 }
                 else if (opts.cache.loadMode === 'cache') {
                     loadCache = true;
+                    shouldTestCache = true;
                 }
                 else {
                     throw new Error('GameWindow.loadFrame: unkown cache ' +
@@ -1669,48 +1677,24 @@
                     storeCacheNow = false;
                     storeCacheLater = false;
                 }
-                else if (opts.cache.storeMode === 'onLoad') {
-                    storeCacheNow = true;
-                    storeCacheLater = false;
-                }
-                else if (opts.cache.storeMode === 'onClose') {
-                    storeCacheNow = false;
-                    storeCacheLater = true;
-                }
                 else {
-                    throw new Error('GameWindow.loadFrame: unkown cache ' +
-                                    'store mode: ' + opts.cache.storeMode);
-                }
-            }
-        }
-
-        // Parsing options.
+                    
+                    if (opts.cache.storeMode === 'onLoad') {
+                        storeCacheNow = true;
+                        storeCacheLater = false;
+                    }
+                    else if (opts.cache.storeMode === 'onClose') {
+                        storeCacheNow = false;
+                        storeCacheLater = true;
+                    }
+                    else {
+                        throw new Error('GameWindow.loadFrame: unkown cache ' +
+                                        'store mode: ' + opts.cache.storeMode);
+                    }
 
-        if ('undefined' !== typeof opts.autoParse) {
-            if ('object' !== typeof opts.autoParse) {
-                throw new TypeError('GameWindow.loadFrame: opts.autoParse ' +
-                                    'must be object or undefined. Found: ' +
-                                    opts.autoParse);
-            }
-            if ('undefined' !== typeof opts.autoParsePrefix) {
-                if ('string' !== typeof opts.autoParsePrefix) {
-                    throw new TypeError('GameWindow.loadFrame: opts.' +
-                                        'autoParsePrefix must be string ' +
-                                        'or undefined. Found: ' +
-                                        opts.autoParsePrefix);
+                    shouldTestCache = true;
                 }
-                autoParsePrefix = opts.autoParsePrefix;
             }
-            if ('undefined' !== typeof opts.autoParseMod) {
-                if ('string' !== typeof opts.autoParseMod) {
-                    throw new TypeError('GameWindow.loadFrame: opts.' +
-                                        'autoParseMod must be string ' +
-                                        'or undefined. Found: ' +
-                                        opts.autoParseMod);
-                }
-                autoParseMod = opts.autoParseMod;
-            }
-            autoParse = opts.autoParse;
         }
 
         // Scroll Up.
@@ -1720,7 +1704,8 @@
         // Store unprocessed uri parameter.
         this.unprocessedUri = uri;
 
-        if (this.cacheSupported === null) {
+        shouldTestCache = true;
+        if (shouldTestCache && this.cacheSupported === null) {
             this.preCacheTest(function() {
                 that.loadFrame(uri, func, opts);
             });
@@ -1789,13 +1774,9 @@
                 handleFrameLoad(that, uri, iframe, iframeName, loadCache,
                                 storeCacheNow, function() {
 
-                                    // Executes callback, autoParses,
+                                    // Executes callback, css, replace, html,
                                     // and updates GameWindow state.
-                                    that.updateLoadFrameState(func,
-                                                              autoParse,
-                                                              autoParseMod,
-                                                              autoParsePrefix,
-                                                              scrollUp);
+                                    that.updateLoadFrameState(func, scrollUp);
                                 });
             });
         }
@@ -1811,13 +1792,9 @@
                 handleFrameLoad(this, uri, iframe, iframeName, loadCache,
                                 storeCacheNow, function() {
 
-                                    // Executes callback
+                                    // Executes callback, css, replace, html,
                                     // and updates GameWindow state.
-                                    that.updateLoadFrameState(func,
-                                                              autoParse,
-                                                              autoParseMod,
-                                                              autoParsePrefix,
-                                                              scrollUp);
+                                    that.updateLoadFrameState(func, scrollUp);
                                 });
             }
         }
@@ -1860,14 +1837,10 @@
      * - decrements the counter of loading iframes
      * - executes a given callback function
      * - auto parses the elements specified (if any)
+     * - updates UI, e.g., scroll-up or adds CSS
      * - set the window state as loaded (eventually)
      *
      * @param {function} func Optional. A callback function
-     * @param {object} autoParse Optional. An object containing elements
-     *    to replace in the HTML DOM.
-     * @param {string} autoParseMod Optional. Modifier for search and replace
-     * @param {string} autoParsePrefix Optional. Custom prefix to add to the
-     *    keys of the elements in autoParse object
      * @param {boolean} scrollUp Optional. If TRUE, scrolls the page to the,
      *    top (if window.scrollTo is defined). Default: FALSE.
      *
@@ -1877,20 +1850,23 @@
      * @emit FRAME_LOADED
      * @emit LOADED
      */
-    GameWindow.prototype.updateLoadFrameState = function(func, autoParse,
-                                                         autoParseMod,
-                                                         autoParsePrefix,
-                                                         scrollUp) {
+    GameWindow.prototype.updateLoadFrameState = function(func, scrollUp) {
 
-        var loaded, stageLevel;
+        var css, html, replace, loaded, stageLevel;
         loaded = updateAreLoading(this, -1);
         if (loaded) this.setStateLevel('LOADED');
         if (func) func.call(node.game);
-        if (autoParse) {
-            this.searchReplace(autoParse, autoParseMod, autoParsePrefix);
-        }
         if (scrollUp && window.scrollTo) window.scrollTo(0,0);
 
+        css = node.game.getProperty('css');
+        if (css) W.cssRule(css);
+
+        html = node.game.getProperty('html');
+        if (html) W.write(html);
+
+        replace = node.game.getProperty('replace');
+        if (replace) W.searchReplace(replace, 'g', '');
+
         // ng event emitter is not used.
         node.events.ee.game.emit('FRAME_LOADED');
         node.events.ee.stage.emit('FRAME_LOADED');
@@ -2159,6 +2135,40 @@
     };
 
 
+    /**
+     * ### GameWindow.cssRule
+     *
+     * Add a css rule to the page
+     *
+     * @param {string} rule The css rule
+     * @param {boolean} clear Optional. TRUE to clear all previous rules
+     *   added with this method to the page
+     *
+     * @return {Element} The HTML style element where the rules were added
+     *
+     * @see handleFrameLoad
+     */
+    GameWindow.prototype.cssRule = function(rule, clear) {
+        var root;
+        if ('string' !== typeof rule) {
+            throw new TypeError(G + 'cssRule: style property must be ' +
+                                'string. Found: ' + rule);
+        }
+        if (!this.styleElement) {
+            root = W.getFrameDocument() || window.document;
+            this.styleElement = W.append('style', root.head, {
+                type: 'text/css',
+                id: 'ng_style'
+            });
+        }
+        else if (clear) {
+            this.styleElement.innerHTML = '';
+        }
+        this.styleElement.innerHTML += rule;
+        return this.styleElement;
+    };
+
+
     // ## Helper functions
 
     /**
@@ -4070,7 +4080,7 @@
 
 /**
  * # extra
- * Copyright(c) 2022 Stefano Balietti
+ * Copyright(c) 2023 Stefano Balietti
  * MIT Licensed
  *
  * GameWindow extras
@@ -4084,15 +4094,20 @@
     var GameWindow = node.GameWindow;
     var DOM = J.require('DOM');
 
+    var G = 'GameWindow.';
+
+    // ### BASIC.
+
     /**
      * ### GameWindow.getScreen
      *
      * Returns the "screen" of the game
      *
-     * i.e. the innermost element inside which to display content
+     * i.e., the innermost element inside which to display content
      *
      * In the following order the screen can be:
      *
+     * - the element with id "container" (presumably inside the iframe)
      * - the body element of the iframe
      * - the document element of the iframe
      * - the body element of the document
@@ -4102,45 +4117,43 @@
      */
     GameWindow.prototype.getScreen = function() {
         var el;
-        el = this.getFrameDocument();
-        if (el) el = el.body || el;
-        else el = document.body || document.lastElementChild;
+        el = this.gid('container');
+        if (!el) {
+            el = this.getFrameDocument();
+            if (el) el = el.body || el;
+            else el = document.body || document.lastElementChild;
+        }
         return el;
     };
 
     /**
-     * ### GameWindow.cssRule
+     * ### GameWindow.uniqueId|generateUniqueId
      *
-     * Add a css rule to the page
+     * Generates a unique id
      *
-     * @param {string} rule The css rule
-     * @param {boolean} clear Optional. TRUE to clear all previous rules
-     *   added with this method to the page
+     * Overrides JSUS.DOM.generateUniqueId.
      *
-     * @return {Element} The HTML style element where the rules were added
+     * @param {string} prefix Optional. The prefix to use
      *
-     * @see handleFrameLoad
+     * @return {string} The generated id
+     *
+     * @experimental
+     * TODO: it is not always working fine.
      */
-    GameWindow.prototype.cssRule = function(rule, clear) {
-        var root;
-        if ('string' !== typeof rule) {
-            throw new TypeError('Game.execStep: style property must be ' +
-                                'string. Found: ' + rule);
-        }
-        if (!this.styleElement) {
-            root = W.getFrameDocument() || window.document;
-            this.styleElement = W.append('style', root.head, {
-                type: 'text/css',
-                id: 'ng_style'
-            });
-        }
-        else if (clear) {
-            this.styleElement.innerHTML = '';
+    GameWindow.prototype.uniqueId =
+    GameWindow.prototype.generateUniqueId = function(prefix) {
+        var id, found;
+        id = '' + (prefix || J.randomInt(0, 1000));
+        found = this.gid(id);
+        while (found) {
+            id = '' + prefix + '_' + J.randomInt(0, 1000);
+            found = this.gid(id);
         }
-        this.styleElement.innerHTML += rule;
-        return this.styleElement;
+        return id;
     };
 
+    // ### WRITE TO SCREEN.
+
     /**
      * ### GameWindow.write
      *
@@ -4154,17 +4167,13 @@
      *
      * @return {string|object} The content written
      *
+     * @see JSUS.write
      * @see GameWindow.writeln
+     * @see getDefaultRoot
      */
     GameWindow.prototype.write = function(text, root) {
-        if ('string' === typeof root) root = this.getElementById(root);
-        else if (!root) root = this.getScreen();
-
-        if (!root) {
-            throw new
-                Error('GameWindow.write: could not determine where to write');
-        }
-        return DOM.write(root, text);
+        root = getDefaultRoot(root, 'write');
+        return DOM.write2(root, text);
     };
 
     /**
@@ -4180,99 +4189,253 @@
      *
      * @return {string|object} The content written
      *
+     * @see JSUS.writeln
      * @see GameWindow.write
+     * @see getDefaultRoot
      */
     GameWindow.prototype.writeln = function(text, root, br) {
-        if ('string' === typeof root) root = this.getElementById(root);
-        else if (!root) root = this.getScreen();
+        root = getDefaultRoot(root, 'writeln');
+        return DOM.writeln2(root, text, br);
+    };
 
-        if (!root) {
-            throw new Error('GameWindow.writeln: ' +
-                            'could not determine where to write');
-        }
-        return DOM.writeln(root, text, br);
+    /**
+    * ### DOM.sprintf
+    *
+    * Builds up a decorated HTML text element
+    *
+    * Performs string substitution from an args object where the first
+    * character of the key bears the following semantic:
+    *
+    * - '@': variable substitution with escaping
+    * - '!': variable substitution without variable escaping
+    * - '%': wraps a portion of string into a _span_ element to which is
+    *        possible to associate a css class or id. Alternatively,
+    *        it also possible to add in-line style. E.g.:
+    *
+    * ```javascript
+    *      sprintf('%sImportant!%s An error has occurred: %pre@err%pre', {
+    *              '%pre': {
+    *                      style: 'font-size: 12px; font-family: courier;'
+    *              },
+    *              '%s': {
+    *                      id: 'myId',
+    *                      'class': 'myClass',
+    *              },
+    *              '@err': 'file not found',
+    *      }, document.body);
+    * ```
+    *
+    * Special span elements are %strong and %em, which add
+    * respectively a _strong_ and _em_ tag instead of the default
+    * _span_ tag. They cannot be styled.
+    *
+    * @param {string} string A text to transform
+    * @param {object} args Optional. An object containing string
+    *   transformations
+    * @param {Element} root Optional. An HTML element to which append the
+    *    string. Defaults, a new _span_ element
+    *
+    * @return {Element} The root element.
+    */
+    GameWindow.prototype.sprintf = function(string, args, root) {
+        if (!root) root = getDefaultRoot(root, 'sprintf');
+        return DOM.sprintf(string, args, root);
     };
 
     /**
-     * ### GameWindow.generateUniqueId
+     * ### GameWindo.add|append
      *
-     * Generates a unique id
-     *
-     * Overrides JSUS.DOM.generateUniqueId.
+     * Creates and append an element with specified attributes to a root
      *
-     * @param {string} prefix Optional. The prefix to use
+     * @param {string} name The name of the HTML tag
+     * @param {HTMLElement} root The root element to which the new element
+     *   will be appended
+     * @param {object|string} options Optional. Object containing
+     *   attributes for the element and rules about how to insert it relative
+     *   to root. Available options: insertAfter, insertBefore (default:
+     *   child of root). If string, it is the id of the element. Examples:
      *
-     * @return {string} The generated id
      *
-     * @experimental
-     * TODO: it is not always working fine.
+     * @see getDefaultRoot
      */
-    GameWindow.prototype.generateUniqueId = function(prefix) {
-        var id, found;
-
-        id = '' + (prefix || J.randomInt(0, 1000));
-        found = this.getElementById(id);
-
-        while (found) {
-            id = '' + prefix + '_' + J.randomInt(0, 1000);
-            found = this.getElementById(id);
-        }
-        return id;
+    GameWindow.prototype.add =
+    GameWindow.prototype.append = function(el, root, opts) {
+        if (!root) root = getDefaultRoot(root, 'add');
+        return DOM.add(el, root, opts);
     };
 
     /**
-     * ### GameWindow.toggleInputs
+     * ### GameWindow.searchReplace
      *
-     * Enables / disables the input forms
+     * Replaces the innerHTML of the element/s with matching id or class name
      *
-     * If an id is provided, only input elements that are children
-     * of the element with the specified id are toggled.
+     * It iterates through each element and passes it to
+     * `GameWindow.setInnerHTML`.
      *
-     * If id is not given, it toggles the input elements on the whole page,
-     * including the frame document, if found.
+     * If elements is array, each item in the array must be of the type:
      *
-     * If a state parameter is given, all the input forms will be either
-     * disabled or enabled (and not toggled).
+     * ```javascript
      *
-     * @param {string} id Optional. The id of the element container
-     *   of the forms. Default: the whole page, including the frame document
-     * @param {boolean} disabled Optional. Forces all the inputs to be either
-     *   disabled or enabled (not toggled)
+     *   { search: 'key', replace: 'value' }
      *
-     * @return {boolean} FALSE, if the method could not be executed
+     *   // or
      *
-     * @see GameWindow.getFrameDocument
-     * @see toggleInputs
+     *   { search: 'key', replace: 'value', mod: 'id' }
+     * ```
+     *
+     * If elements is object, it must be of the type:
+     *
+     * ```javascript
+     *
+     *    {
+     *      search1: value1, search2: value 2 // etc.
+     *    }
+     * ```
+     *
+     * It accepts a variable number of input parameters. The first is always
+     * _elements_. If there are 2 input parameters, the second is _prefix_,
+     * while if there are 3 input parameters, the second is _mod_ and the third
+     * is _prefix_.
+     *
+     * @param {object|array} Elements to search and replace
+     * @param {string} mod Optional. Modifier passed to GameWindow.setInnerHTML
+     * @param {string} prefix Optional. Prefix added to the search string.
+     *    Default: 'ng_replace_', null or '' equals no prefix.
+     *
+     * @see GameWindow.setInnerHTML
      */
-    GameWindow.prototype.toggleInputs = function(id, disabled) {
-        var container;
-        if (!document.getElementsByTagName) {
-            node.err(
-                'GameWindow.toggleInputs: getElementsByTagName not found');
-            return false;
+    GameWindow.prototype.searchReplace = function() {
+        var elements, mod, prefix;
+        var name, len, i, el, rep;
+
+        if (arguments.length === 2) {
+            mod = 'g';
+            prefix = arguments[1];
         }
-        if (id && 'string' === typeof id) {
-            throw new Error('GameWindow.toggleInputs: id must be string or ' +
-                            'undefined. Found: ' + id);
+        else if (arguments.length > 2) {
+            mod = arguments[1];
+            prefix = arguments[2];
         }
-        if (id) {
-            container = this.getElementById(id);
-            if (!container) {
-                throw new Error('GameWindow.toggleInputs: no elements found ' +
-                                'with id ' + id);
+
+        if ('undefined' === typeof prefix) {
+            prefix = 'ng_replace_';
+        }
+        else if (null === prefix) {
+            prefix = '';
+        }
+        else if ('string' !== typeof prefix) {
+            throw new TypeError(G + 'searchReplace: prefix must be string, ' +
+                                'null or undefined. Found: ' + prefix);
+        }
+
+        elements = arguments[0];
+        if (J.isArray(elements)) {
+            i = -1, len = elements.length;
+            for ( ; ++i < len ; ) {
+                el = elements[i].search;
+                if ('string' !== typeof el && 'number' !== typeof el) {
+                    continue;
+                }
+                rep = elements[i].replace;
+                if ('string' !== typeof rep && 'number' !== typeof rep) {
+                    continue;
+                }
+
+                this.setInnerHTML(prefix + el,
+                                  elements[i].replace,
+                                  elements[i].mod || mod);
+            }
+
+        }
+        else if ('object' === typeof elements) {
+            for (name in elements) {
+                if (elements.hasOwnProperty(name)) {
+                    el = elements[name];
+                    if ('string' !== typeof el && 'number' !== typeof el) {
+                        node.warn(G + 'searchReplace: replace for key ' + name +
+                                  ' is invalid. Found: ' + el);
+                        continue;
+                    }
+                    this.setInnerHTML(prefix + name, el, mod);
+                }
             }
-            toggleInputs(disabled, container);
         }
         else {
-            // The whole page.
-            toggleInputs(disabled);
-            container = this.getFrameDocument();
-            // If there is a frame, apply it there too.
-            if (container) toggleInputs(disabled, container);
+            throw new TypeError(G + 'setInnerHTML: elements must be ' +
+                                'object or arrray. Found: ' + elements);
         }
-        return true;
+
     };
 
+    /**
+     * ### GameWindow.html|setInnerHTML
+     *
+     * Replaces the innerHTML of the element with matching id or class name
+     *
+     * @param {string|number} search Element id or className
+     * @param {string|number} replace The new value of the property innerHTML
+     * @param {string} mod Optional. A modifier defining how to use the
+     *    search parameter. Values:
+     *
+     *    - 'id': replaces at most one element with the same id (default)
+     *    - 'className': replaces all elements with same class name
+     *    - 'g': replaces globally, both by id and className
+     */
+    GameWindow.prototype.setInnerHTML =
+    GameWindow.prototype.html = function(search, replace, mod) {
+        var el, i, len;
+
+        // Only process strings or numbers.
+        if ('string' !== typeof search && 'number' !== typeof search) {
+            throw new TypeError(G + 'setInnerHTML: search must be ' +
+                                'string or number. Found: ' + search +
+                                " (replace = " + replace + ")");
+        }
+
+        // Only process strings or numbers.
+        if ('string' !== typeof replace && 'number' !== typeof replace) {
+            throw new TypeError(G + 'setInnerHTML: replace must be ' +
+                                'string or number. Found: ' + replace +
+                                " (search = " + search + ")");
+        }
+
+        if ('undefined' === typeof mod) {
+            mod = 'id';
+        }
+        else if ('string' === typeof mod) {
+            if (mod !== 'g' && mod !== 'id' && mod !== 'className') {
+                throw new Error(G + 'setInnerHTML: invalid ' +
+                                'mod value: ' + mod  +
+                                " (search = " + search + ")");
+            }
+        }
+        else {
+            throw new TypeError(G + 'setInnerHTML: mod must be ' +
+                                'string or undefined. Found: ' + mod  +
+                                " (search = " + search + ")");
+        }
+
+        if (mod === 'id' || mod === 'g') {
+            // Look by id.
+            el = W.getElementById(search);
+            if (el && el.className !== search) el.innerHTML = replace;
+        }
+
+        if (mod === 'className' || mod === 'g') {
+            // Look by class name.
+            el = W.getElementsByClassName(search);
+            len = el.length;
+            if (len) {
+                i = -1;
+                for ( ; ++i < len ; ) {
+                    el[i].innerHTML = replace;
+                }
+            }
+        }
+    };
+
+    // ### ADD STUFF: Event button, loading dots.
+
     /**
      * ### GameWindow.getLoadingDots
      *
@@ -4285,7 +4448,7 @@
      *
      * @param {number} len Optional. The maximum length of the loading dots.
      *   Default: 5
-     * @param {string} id Optional The id of the span
+     * @param {string} id Optional. The id of the span
      *
      * @return {object} An object containing two properties: the span element
      *   and a method stop, that clears the interval
@@ -4293,8 +4456,8 @@
     GameWindow.prototype.getLoadingDots = function(len, id) {
         var spanDots, counter, intervalId;
         if (len & len < 0) {
-            throw new Error('GameWindow.getLoadingDots: len cannot be < 0. ' +
-                            'Found: ' + len);
+            throw new Error(G + 'getLoadingDots: len cannot be < 0. Found: ' +
+                            len);
         }
         spanDots = document.createElement('span');
         spanDots.id = id || 'span_dots';
@@ -4367,7 +4530,7 @@
     GameWindow.prototype.getEventButton = function(event, attributes) {
         var b;
         if ('string' !== typeof event) {
-            throw new TypeError('GameWindow.getEventButton: event must ' +
+            throw new TypeError(G + 'getEventButton: event must ' +
                                 'be string. Found: ' + event);
         }
         if ('string' === typeof attributes) {
@@ -4405,163 +4568,58 @@
         return root.appendChild(eb);
     };
 
+    // ### SHOWING, HIDING, TOGGLING.
+
     /**
-     * ### GameWindow.searchReplace
-     *
-     * Replaces the innerHTML of the element/s with matching id or class name
-     *
-     * It iterates through each element and passes it to
-     * `GameWindow.setInnerHTML`.
-     *
-     * If elements is array, each item in the array must be of the type:
-     *
-     * ```javascript
-     *
-     *   { search: 'key', replace: 'value' }
-     *
-     *   // or
-     *
-     *   { search: 'key', replace: 'value', mod: 'id' }
-     * ```
-     *
-     * If elements is object, it must be of the type:
-     *
-     * ```javascript
+     * ### GameWindow.toggleInputs
      *
-     *    {
-     *      search1: value1, search2: value 2 // etc.
-     *    }
-     * ```
+     * Enables / disables the input forms
      *
-     * It accepts a variable number of input parameters. The first is always
-     * _elements_. If there are 2 input parameters, the second is _prefix_,
-     * while if there are 3 input parameters, the second is _mod_ and the third
-     * is _prefix_.
+     * If an id is provided, only input elements that are children
+     * of the element with the specified id are toggled.
      *
-     * @param {object|array} Elements to search and replace
-     * @param {string} mod Optional. Modifier passed to GameWindow.setInnerHTML
-     * @param {string} prefix Optional. Prefix added to the search string.
-     *    Default: 'ng_replace_', null or '' equals no prefix.
+     * If id is not given, it toggles the input elements on the whole page,
+     * including the frame document, if found.
      *
-     * @see GameWindow.setInnerHTML
-     */
-    GameWindow.prototype.searchReplace = function() {
-        var elements, mod, prefix;
-        var name, len, i;
-
-        if (arguments.length === 2) {
-            mod = 'g';
-            prefix = arguments[1];
-        }
-        else if (arguments.length > 2) {
-            mod = arguments[1];
-            prefix = arguments[2];
-        }
-
-        if ('undefined' === typeof prefix) {
-            prefix = 'ng_replace_';
-        }
-        else if (null === prefix) {
-            prefix = '';
-        }
-        else if ('string' !== typeof prefix) {
-            throw new TypeError('GameWindow.searchReplace: prefix ' +
-                                'must be string, null or undefined. Found: ' +
-                                prefix);
-        }
-
-        elements = arguments[0];
-        if (J.isArray(elements)) {
-            i = -1, len = elements.length;
-            for ( ; ++i < len ; ) {
-                this.setInnerHTML(prefix + elements[i].search,
-                                  elements[i].replace,
-                                  elements[i].mod || mod);
-            }
-
-        }
-        else if ('object' !== typeof elements) {
-            for (name in elements) {
-                if (elements.hasOwnProperty(name)) {
-                    this.setInnerHTML(prefix + name, elements[name], mod);
-                }
-            }
-        }
-        else {
-            throw new TypeError('GameWindow.setInnerHTML: elements must be ' +
-                                'object or arrray. Found: ' + elements);
-        }
-
-    };
-
-    GameWindow.prototype.setInnerHTML = function(search, replace, mod) {
-        this.html(search, replace, mod);
-    };
-
-    /**
-     * ### GameWindow.html
+     * If a state parameter is given, all the input forms will be either
+     * disabled or enabled (and not toggled).
      *
-     * Replaces the innerHTML of the element with matching id or class name
+     * @param {string} id Optional. The id of the element container
+     *   of the forms. Default: the whole page, including the frame document
+     * @param {boolean} disabled Optional. Forces all the inputs to be either
+     *   disabled or enabled (not toggled)
      *
-     * @param {string|number} search Element id or className
-     * @param {string|number} replace The new value of the property innerHTML
-     * @param {string} mod Optional. A modifier defining how to use the
-     *    search parameter. Values:
+     * @return {boolean} FALSE, if the method could not be executed
      *
-     *    - 'id': replaces at most one element with the same id (default)
-     *    - 'className': replaces all elements with same class name
-     *    - 'g': replaces globally, both by id and className
+     * @see GameWindow.getFrameDocument
+     * @see toggleInputs
      */
-    GameWindow.prototype.html = function(search, replace, mod) {
-        var el, i, len;
-
-        // Only process strings or numbers.
-        if ('string' !== typeof search && 'number' !== typeof search) {
-            throw new TypeError('GameWindow.setInnerHTML: search must be ' +
-                                'string or number. Found: ' + search +
-                                " (replace = " + replace + ")");
-        }
-
-        // Only process strings or numbers.
-        if ('string' !== typeof replace && 'number' !== typeof replace) {
-            throw new TypeError('GameWindow.setInnerHTML: replace must be ' +
-                                'string or number. Found: ' + replace +
-                                " (search = " + search + ")");
+    GameWindow.prototype.toggleInputs = function(id, disabled) {
+        var container;
+        if (!document.getElementsByTagName) {
+            node.err(G + 'toggleInputs: getElementsByTagName not found');
+            return false;
         }
-
-        if ('undefined' === typeof mod) {
-            mod = 'id';
+        if (id && 'string' === typeof id) {
+            throw new Error(G + 'toggleInputs: id must be string or ' +
+                            'undefined. Found: ' + id);
         }
-        else if ('string' === typeof mod) {
-            if (mod !== 'g' && mod !== 'id' && mod !== 'className') {
-                throw new Error('GameWindow.setInnerHTML: invalid ' +
-                                'mod value: ' + mod  +
-                                " (search = " + search + ")");
+        if (id) {
+            container = this.gid(id);
+            if (!container) {
+                throw new Error(G + 'toggleInputs: no elements found with id ' +
+                                id);
             }
+            toggleInputs(disabled, container);
         }
         else {
-            throw new TypeError('GameWindow.setInnerHTML: mod must be ' +
-                                'string or undefined. Found: ' + mod  +
-                                " (search = " + search + ")");
-        }
-
-        if (mod === 'id' || mod === 'g') {
-            // Look by id.
-            el = W.getElementById(search);
-            if (el && el.className !== search) el.innerHTML = replace;
-        }
-
-        if (mod === 'className' || mod === 'g') {
-            // Look by class name.
-            el = W.getElementsByClassName(search);
-            len = el.length;
-            if (len) {
-                i = -1;
-                for ( ; ++i < len ; ) {
-                    el[i].innerHTML = replace;
-                }
-            }
+            // The whole page.
+            toggleInputs(disabled);
+            container = this.getFrameDocument();
+            // If there is a frame, apply it there too.
+            if (container) toggleInputs(disabled, container);
         }
+        return true;
     };
 
     /**
@@ -4580,7 +4638,7 @@
      */
     GameWindow.prototype.hide = function(idOrObj) {
         var el;
-        el = getElement(idOrObj, 'GameWindow.hide');
+        el = getElement(idOrObj, 'hide');
         if (el) {
             el.style.display = 'none';
             W.adjustFrameHeight(0, 0);
@@ -4608,10 +4666,10 @@
         var el;
         display = display || '';
         if ('string' !== typeof display) {
-            throw new TypeError('GameWindow.show: display must be ' +
+            throw new TypeError(G + 'show: display must be ' +
                                 'string or undefined. Found: ' + display);
         }
-        el = getElement(idOrObj, 'GameWindow.show');
+        el = getElement(idOrObj, 'show');
         if (el) {
             el.style.display = display;
             W.adjustFrameHeight(0, 0);
@@ -4639,10 +4697,10 @@
         var el;
         display = display || '';
         if ('string' !== typeof display) {
-            throw new TypeError('GameWindow.toggle: display must ' +
+            throw new TypeError(G + 'toggle: display must ' +
                                 'be string or undefined. Found: ' + display);
         }
-        el = getElement(idOrObj, 'GameWindow.toggle');
+        el = getElement(idOrObj, 'toggle');
         if (el) {
             if (el.style.display === 'none') el.style.display = display;
             else el.style.display = 'none';
@@ -4656,6 +4714,13 @@
     /**
      * ### toggleInputs
      *
+     * Enable/disable inputs: 'button', 'select', 'textarea', 'input'
+     *
+     * @param {boolean} state Optional. True/false to enable/disable, undefined
+     *   to toggle.
+     * @param {HTMLElement} container Optional. The element inside which
+     *   toggling takes place. Default: `document`.
+     *
      * @api private
      */
     function toggleInputs(state, container) {
@@ -4686,26 +4751,48 @@
      *
      * Gets the element or returns it
      *
-     * @param {string|HTMLElement} The id or the HTML element itself
+     * @param {string|HTMLElement} idOrObj The id or the HTML element itself
+     * @param {string|undefined} throwAs Optional. The name of the calling
+     *   method used in the string of the error, or undefined to avoid
+     *   throwing altogether.
      *
-     * @return {HTMLElement} The HTML Element
+     * @return {HTMLElement|undefined} The HTML Element or undefined if none
+     *   is found and throwAs is falsy
      *
-     * @see GameWindow.getElementById
+     * @see GameWindow.gid
      * @api private
      */
-    function getElement(idOrObj, prefix) {
-        var el;
-        if ('string' === typeof idOrObj) {
-            el = W.getElementById(idOrObj);
-        }
-        else if (J.isElement(idOrObj)) {
-            el = idOrObj;
-        }
-        else {
-            throw new TypeError(prefix + ': idOrObj must be string ' +
-                                ' or HTML Element. Found: ' + idOrObj);
+    function getElement(idOrObj, throwAs) {
+        if ('string' === typeof idOrObj) return W.gid(idOrObj);
+        if (J.isElement(idOrObj)) return idOrObj;
+        if (throwAs) {
+            throw new TypeError(G + throwAs + ': idOrObj must be string or ' +
+                               'HTML Element. Found: ' + idOrObj);
         }
-        return el;
+    }
+
+    /**
+     * ### getDefaultRoot
+     *
+     * Tries to find a default root and returns it
+     *
+     * @param {string|HTMLElement} root Optional. The id of or the HTML
+     *   element itself to be used as root.
+     * @param {string|undefined} throwAs Optional. The name of the calling
+     *   method used in the string of the error, or undefined to avoid
+     *   throwing altogether.
+     *
+     * @return {HTMLElement|undefined} The root HTML Element, or undefined
+     *   if none is found and `throwAs` is falsy
+     *
+     * @see GameWindow.gid
+     * @api private
+     */
+    function getDefaultRoot(root, throwAs) {
+        if (!root) root = W.getScreen();
+        else root = getElement(root);
+        if (root) return root;
+        if (throwAs) throw new Error(G + throwAs + ': could not find root');
     }
 
 })(
diff --git a/build/nodegame-window.min.js b/build/nodegame-window.min.js
index 2f06753..f50273a 100644
--- a/build/nodegame-window.min.js
+++ b/build/nodegame-window.min.js
@@ -1,6 +1,6 @@
 /**
  * # GameWindow
- * Copyright(c) 2021 Stefano Balietti <ste@nodegame.org>
+ * Copyright(c) 2023 Stefano Balietti <ste@nodegame.org>
  * MIT Licensed
  *
  * API to interface nodeGame with the browser window
@@ -15,4 +15,4 @@
  *
  * Depends on JSUS and nodegame-client.
  */
-(function(e,t){"use strict";function a(e,t){function r(){e.removeEventListener("load",r,!1),n.removeEventListener("load",r,!1),t&&setTimeout(function(){t()},120)}var n;n=e.contentWindow,e.addEventListener("load",r,!1),n.addEventListener("load",r,!1)}function f(e,t){function r(i){var s;s=J.getIFrameDocument(e);if(i.type==="load"||s.readyState==="complete")e.detachEvent("onreadystatechange",r),n.detachEvent("onload",r),t&&setTimeout(function(){t()},120)}var n;n=e.contentWindow,e.attachEvent("onreadystatechange",r),n.attachEvent("onload",r)}function l(e,t){W.isIE?f(e,t):a(e,t)}function c(){this.setStateLevel("UNINITIALIZED");if("undefined"==typeof e)throw new Error("GameWindow: no window found. Are you in a browser?");if("undefined"==typeof t)throw new Error("GameWindow: nodeGame not found");t.silly("node-window: loading..."),this.frameName=null,this.frameElement=null,this.frameWindow=null,this.frameDocument=null,this.frameRoot=null,this.headerElement=null,this.headerName=null,this.headerRoot=null,this.headerPosition=null,this.defaultHeaderPosition="top",this.conf={},this.uriChannel=null,this.areLoading=0,this.cacheSupported=null,this.directFrameDocumentAccess=null,this.cache={},this.currentURIs={},this.unprocessedUri=null,this.globalLibs=[],this.frameLibs={},this.uriPrefix=null,this.stateLevel=null,this.waitScreen=null,this.listenersAdded=null,this.screenState=t.constants.screenLevels.ACTIVE,this.styleElement=null,this.isIE=!!document.createElement("span").attachEvent,this.headerOffset=0,this.willResizeFrame=!1,this.addDefaultSetups(),this.addDefaultListeners(),setTimeout(function(){(function(e){e.length>=1&&(e[0].style.display="none")})(document.getElementsByTagName("noscript"))},1e3),this.init(c.defaults),t.silly("node-window: created.")}function h(e,t,n,r,i,s,o){var u,a;n=W.getElementById(r),u=W.getIFrameDocument(n).documentElement,i&&(u.innerHTML=e.cache[t].contents),r===e.frameName&&(e.frameWindow=n.contentWindow,e.frameDocument=e.getIFrameDocument(n),e.conf.rightClickDisabled&&J.disableRightClick(e.frameDocument),e.conf.noEscape&&(e.frameDocument.onkeydown=document.onkeydown)),e.styleElement=null,p(n),a=function(){v(n,e.globalLibs.concat(e.frameLibs.hasOwnProperty(t)?e.frameLibs[t]:[])),s&&(e.cache[t].contents=u.innerHTML),o(),b()},i?d(n,a):a()}function p(e){var t,n,r,i;n=W.getIFrameDocument(e),r=W.getElementsByClassName(n,"injectedlib","script");for(t=0;t<r.length;t++)i=r[t],i.parentNode.removeChild(i)}function d(e,t){var n,r,i,s,o,u,a,f,l,c;n=W.getIFrameDocument(e),r=W.getIFrameAnyChild(e),l=1,s=n.getElementsByTagName("script");for(o=0;o<s.length;o++){i=s[o],i.parentNode.removeChild(i),u=document.createElement("script"),i.innerHTML&&(u.innerHTML=i.innerHTML),c=!1;for(a=0;a<i.attributes.length;a++)f=i.attributes[a],u.setAttribute(f.name,f.value),f.name==="src"&&(c=!0);c&&(++l,u.onload=function(e){return function(){e.onload=null,--l,l<=0&&t()}}(u)),r.appendChild(u)}--l,l<=0&&t()}function v(e,t){var n,r,i,s;n=W.getIFrameAnyChild(e);for(i=0;i<t.length;i++)s=t[i],r=document.createElement("script"),r.className="injectedlib",r.src=s,n.appendChild(r)}function m(e,t){return e.areLoading=e.areLoading+t,e.areLoading===0}function g(e){var t,n,r;n=W.getFrame();if(!n)return;r=W.getHeader(),t=W.headerPosition||"top",e==="bottom"&&t!=="bottom"&&W.getFrameRoot().insertBefore(W.headerElement,n),W.removeClass(n,"ng_mainframe-header-[a-z-]*");switch(t){case"right":W.addClass(n,"ng_mainframe-header-vertical-r");break;case"left":W.addClass(n,"ng_mainframe-header-vertical-l");break;case"top":W.addClass(n,"ng_mainframe-header-horizontal-t"),r&&W.getFrameRoot().insertBefore(r,n);break;case"bottom":W.addClass(n,"ng_mainframe-header-horizontal-b"),r&&W.getFrameRoot().insertBefore(r,n.nextSibling)}}function y(e){try{e.frameDocument.getElementById("test"),e.directFrameDocumentAccess=!0}catch(t){e.directFrameDocumentAccess=!1}}function b(){var e,t,n,r,i;e=W.getFrameDocument(),e&&(t=e.images,n=t.length);if(!n){W.adjustFrameHeight(0,120);return}r=0,i=function(){++r===n&&W.adjustFrameHeight()},[].forEach.call(t,function(e){e.complete?i():e.addEventListener("load",i,!1)})}var n,r,i,s,o,u;if(!J)throw new Error("GameWindow: JSUS not found");n=J.require("DOM");if(!n)throw new Error('GameWindow: J.require("DOM") failed');r=t.constants,i=r.windowLevels,s=r.screenLevels,o=r.stageLevels.CALLBACK_EXECUTED,u=i.LOADING,c.prototype=n,c.prototype.constructor=c,c.defaults={},c.defaults.promptOnleaveText="",c.defaults.promptOnleave=!0,c.defaults.noEscape=!0,c.defaults.waitScreen=undefined,c.defaults.disableRightClick=!1,c.defaults.cacheDefaults={loadCache:!0,storeCacheNow:!1,storeCacheLater:!1},c.defaults.infoPanel=undefined,c.prototype.init=function(e){var n,i;this.setStateLevel("INITIALIZING"),e=e||{},this.conf=J.merge(this.conf,e),this.conf.promptOnleave?this.promptOnleave():this.conf.promptOnleave===!1&&this.restoreOnleave(),"undefined"==typeof this.conf.noEscape||this.conf.noEscape?this.noEscape():this.conf.noEscape===!1&&this.restoreEscape(),this.conf.waitScreen!==!1?(this.waitScreen&&(this.waitScreen.destroy(),this.waitScreen=null),this.waitScreen=new t.WaitScreen(this.conf.waitScreen),n=r.stageLevels,i=t.game.getStageLevel(),i!==n.UNINITIALIZED&&(t.game.paused?this.lockScreen(this.waitScreen.defaultTexts.paused):i===n.DONE?this.lockScreen(this.waitScreen.defaultTexts.waiting):i!==n.PLAYING&&this.lockScreen(this.waitScreen.defaultTexts.stepping))):this.waitScreen&&(this.waitScreen.destroy(),this.waitScreen=null),this.conf.defaultHeaderPosition&&(this.defaultHeaderPosition=this.conf.defaultHeaderPosition),this.conf.disableRightClick?this.disableRightClick():this.conf.disableRightClick===!1&&this.enableRightClick(),"undefined"!=typeof this.conf.disableBackButton&&this.disableBackButton(this.conf.disableBackButton),"undefined"!=typeof this.conf.uriPrefix&&this.setUriPrefix(this.conf.uriPrefix),this.setStateLevel("INITIALIZED"),t.silly("node-window: inited.")},c.prototype.reset=function(){this.isScreenLocked()&&this.unlockScreen(),t.widgets&&t.widgets.destroyAll(),this.getFrame()&&this.destroyFrame(),this.getHeader()&&this.destroyHeader(),this.areLoading=0,this.clearCache(),t.silly("node-window: reseted")},c.prototype.setStateLevel=function(e){if("string"!=typeof e)throw new TypeError("GameWindow.setStateLevel: level must be string. Found: "+e);if("undefined"==typeof i[e])throw new Error("GameWindow.setStateLevel: unrecognized level: "+e);this.stateLevel=i[e]},c.prototype.getStateLevel=function(){return this.stateLevel},c.prototype.isReady=function(){return this.stateLevel===i.LOADED||this.stateLevel===i.INITIALIZED},c.prototype.setScreenLevel=function(e){if("string"!=typeof e)throw new TypeError("GameWindow.setScreenLevel: level must be string. Found: "+e);if("undefined"==typeof s[e])throw new Error("GameWindow.setScreenLevel: unrecognized level: "+e);this.screenState=s[e]},c.prototype.getScreenLevel=function(){return this.screenState},c.prototype.getFrame=function(){return this.frameElement||this.frameName&&(this.frameElement=document.getElementById(this.frameName)),this.frameElement},c.prototype.getFrameName=function(){var e;if(!this.frameName||this.stateLevel===u)e=this.getFrame(),this.frameName=e?e.name||e.id:null;return this.frameName},c.prototype.getFrameWindow=function(){var e;if(!this.frameWindow||this.stateLevel===u)e=this.getFrame(),this.frameWindow=e?e.contentWindow:null;return this.frameWindow},c.prototype.getFrameDocument=function(){var e;if(!this.frameDocument||this.stateLevel===u){e=this.getFrame();if(!e)return null;this.frameDocument=this.getIFrameDocument(e)}return this.directFrameDocumentAccess?this.frameDocument:J.getIFrameDocument(this.getFrame())},c.prototype.getFrameRoot=function(){var e;return this.frameRoot||(e=this.getFrame(),this.frameRoot=e?e.parentNode:null),this.frameRoot},c.prototype.generateFrame=function(e,n,r){var i;if(this.frameElement){if(!r)throw new Error("GameWindow.generateFrame: frame is already existing. Use force to regenerate.");this.destroyFrame()}e=e||this.frameRoot||document.body;if(!J.isElement(e))throw new Error("GameWindow.generateFrame: root must be undefined or HTMLElement. Found: "+e);n=n||"ng_mainframe";if("string"!=typeof n||n.trim()==="")throw new Error("GameWindow.generateFrame: frameName must be undefined or a non-empty string. Found: "+n);if(document.getElementById(n))throw new Error("GameWindow.generateFrame: frameName is not unique in DOM: "+n);return i=W.add("iframe",e,n),i.contentWindow.location.replace("about:blank"),i.frameBorder=0,i.scrolling="no",this.setFrame(i,n,e),this.getHeader()&&g(),t.events.ng.emit("FRAME_GENERATED",i),document.body.onresize=function(){W.adjustFrameHeight(0,120)},i},c.prototype.generateInfoPanel=function(e,n){var r,i,s;e=e||{},"undefined"==typeof n&&(n=e.force),n&&this.infoPanel&&(this.infoPanel.destroy(),this.infoPanel=null),this.infoPanel?(this.infoPanel.toggleBtn&&"undefined"==typeof e.toggleBtn&&(e.toggleBtn=!1),t.warn("W.generateInfoPanel: Info Panel already existing.")):this.infoPanel=new t.InfoPanel(e),r=this.infoPanel.infoPanelDiv,i=e.root;if(i){"string"==typeof i&&(i=W.gid(i));if(!J.isElement(i))throw new Error("GameWindow.generateInfoPanel: root must be undefined or HTMLElement. Found: "+i);i.appendChild(r)}else this.frameElement?document.body.insertBefore(r,this.frameElement):this.headerElement?J.insertAfter(this.headerElement,r):document.body.appendChild(r);if(e.toggleBtn!==!1){i=null;if(!e.toggleBtnRoot)this.headerElement&&(i=this.headerElement);else{"string"==typeof e.toggleBtnRoot?i=W.gid(e.toggleBtnRoot):i=e.toggleBtnRoot;if(!J.isElement(i))throw new Error("GameWindow.generateInfoPanel: toggleBtnRoot did not resolve to a valid HTMLElement: "+e.toggleBtnRoot)}i&&(s=W.infoPanel.createToggleBtn(e.toggleBtnLabel),i.appendChild(s))}return e.innerHTML&&(W.infoPanel.infoPanelDiv.innerHTML=e.innerHTML),t.events.ng.emit("INFOPANEL_GENERATED",this.infoPanel),this.infoPanel},c.prototype.setFrame=function(e,t,n){if(!J.isElement(e))throw new TypeError("GameWindow.setFrame: iframe must be HTMLElement. Found: "+e);if("string"!=typeof t)throw new TypeError("GameWindow.setFrame: iframeName must be string. Found: "+t);if(!J.isElement(n))throw new TypeError("GameWindow.setFrame: root must be HTMLElement. Found: "+n);return this.frameRoot=n,this.frameName=t,this.frameElement=e,this.frameWindow=e.contentWindow,this.frameDocument=W.getIFrameDocument(e),e},c.prototype.destroyFrame=function(){this.clearFrame(),this.frameRoot&&this.frameRoot.removeChild(this.frameElement),this.frameElement=null,this.frameWindow=null,this.frameDocument=null,this.frameRoot=null,t.widgets.garbageCollection()},c.prototype.clearFrame=function(){var n,r,i;n=this.getFrame();if(!n)throw new Error("GameWindow.clearFrame: frame not found");r=n.name||n.id,n.onload=null,i=this.getFrameDocument(),i.documentElement.innerHTML="",this.directFrameDocumentAccess?i.documentElement.innerHTML="":J.removeChildrenFromNode(i.documentElement),this.frameElement=n,this.frameWindow=e.frames[r],this.frameDocument=W.getIFrameDocument(n),t.widgets.garbageCollection()},c.prototype.generateHeader=function(e,t,n){var r;if(this.headerElement){if(!n)throw new Error("GameWindow.generateHeader: header is already existing. Use force to regenerate.");this.destroyHeader()}e=e||document.body||document.lastElementChild;if(!J.isElement(e))throw new Error("GameWindow.generateHeader: root must be undefined or HTMLElement. Found: "+e);t=t||"ng_header";if("string"!=typeof t)throw new Error("GameWindow.generateHeader: headerName must be string. Found: "+t);if(document.getElementById(t))throw new Error("GameWindow.generateHeader: headerName is not unique in DOM: "+t);return r=this.add("div",e,t),this.frameElement&&this.defaultHeaderPosition!=="bottom"&&this.getFrameRoot().insertBefore(r,this.frameElement),this.setHeader(r,t,e),this.setHeaderPosition(this.defaultHeaderPosition),r},c.prototype.setHeaderPosition=function(){var e;return e={top:"ng_header_position-horizontal-t",bottom:"ng_header_position-horizontal-b",right:"ng_header_position-vertical-r",left:"ng_header_position-vertical-l"},function(n){var r,i;if("string"!=typeof n)throw new TypeError("GameWindow.setHeaderPosition: position must be string. Found: "+n);r=n.toLowerCase();if(this.headerPosition===r)return;if("undefined"==typeof e[r]){t.err("GameWindow.setHeaderPosition: invalid header position: "+r);return}if(!this.headerElement)throw new Error("GameWindow.setHeaderPosition: headerElement not found.");W.removeClass(this.headerElement,"ng_header_position-[a-z-]*"),W.addClass(this.headerElement,e[r]),i=this.headerPosition,this.headerPosition=r,this.frameElement&&g(i)}}(),c.prototype.setHeader=function(e,n,r){if(!J.isElement(e))throw new Error("GameWindow.setHeader: header must be HTMLElement. Found: "+e);if("string"!=typeof n)throw new Error("GameWindow.setHeader: headerName must be string. Found: "+n);if(!J.isElement(r))throw new Error("GameWindow.setHeader: root must be HTMLElement. Found: "+r);return this.headerElement=e,this.headerName=n,this.headerRoot=r,t.events.ng.emit("HEADER_GENERATED",e),this.headerElement},c.prototype.getHeader=function(){return this.headerElement||(this.headerElement=this.headerName?document.getElementById(this.headerName):null),this.headerElement},c.prototype.getHeaderName=function(){var e;return this.headerName||(e=this.getHeader(),this.headerName=e?e.id:null),this.headerName},c.prototype.getHeaderRoot=function(){var e;return this.headerRoot||(e=this.getHeader(),this.headerRoot=e?e.parentNode:null),this.headerRoot},c.prototype.destroyHeader=function(){this.clearHeader(),this.headerRoot.removeChild(this.headerElement),this.headerElement=null,this.headerName=null,this.headerRoot=null,this.headerPosition=null,this.headerOffset=0,this.adjustHeaderOffset(!0)},c.prototype.clearHeader=function(){var e;e=this.getHeader();if(!e)throw new Error("GameWindow.clearHeader: cannot detect header");this.headerElement.innerHTML="",t.widgets.garbageCollection()},c.prototype.initLibs=function(e,t){if(e&&!J.isArray(e))throw new TypeError("GameWindow.initLibs: globalLibs must be array or undefined. Found: "+e);if(t&&"object"!=typeof t)throw new TypeError("GameWindow.initLibs: frameLibs must be object or undefined. Found: "+t);if(!e&&!t)throw new Error("GameWindow.initLibs: frameLibs and frameLibs cannot be both undefined.");this.globalLibs=this.globalLibs.concat(e||[]),J.mixin(this.frameLibs,t)},c.prototype.preCacheTest=function(e,t){var n,r;t=t||"/pages/testpage.htm";if("string"!=typeof t)throw new TypeError("GameWindow.precacheTest: uri must string or undefined. Found: "+t);n=document.createElement("iframe"),n.style.display="none",r="preCacheTest",n.id=r,n.name=r,document.body.appendChild(n),n.contentWindow.location.replace(t),l(n,function(){try{W.getIFrameDocument(n).documentElement.innerHTML="a",W.cacheSupported=!0}catch(t){W.cacheSupported=!1}document.body.removeChild(n),e&&e()})},c.prototype.preCache=function(n,r){var i,s,o,u,a,f;"string"==typeof n&&(n=[n]);if(!J.isArray(n))throw new TypeError("GameWindow.preCache: uris must be string or array. Found: "+n);if(r&&"function"!=typeof r)throw new TypeError("GameWindow.preCache: callback must be function or undefined. Found: "+r);if(!n.length){r&&r();return}i=this;if(this.cacheSupported===null){this.preCacheTest(function(){i.preCache(n,r)});return}if(this.cacheSupported===!1){t.warn("GameWindow.preCache: caching is not supported by your browser."),r&&r();return}s=0;for(u=0;u<n.length;u++)o=this.processUri(n[u]),a=document.createElement("iframe"),a.style.display="none",f="tmp_iframe_"+u,a.id=f,a.name=f,document.body.appendChild(a),function(e,t){l(t,function(){var o,u;o=W.getIFrameDocument(t),u=o.documentElement,i.cache[e]={contents:u.innerHTML,cacheOnClose:!1},document.body.removeChild(t),s++,s>=n.length&&r&&r()})}(o,a),e.frames[f].location.replace(o)},c.prototype.clearCache=function(){this.cache={}},c.prototype.getElementById=c.prototype.gid=function(e){var t,n;return n=this.getFrameDocument(),t=null,n&&n.getElementById&&(t=n.getElementById(e)),t||(t=document.getElementById(e)),t},c.prototype.getElementsByTagName=function(e){var t;return t=this.getFrameDocument(),t?t.getElementsByTagName(e):document.getElementsByTagName(e)},c.prototype.getElementsByClassName=function(e,t){var n;return n=this.getFrameDocument()||document,J.getElementsByClassName(n,e,t)},c.prototype.loadFrame=function(e,n,r){var i,s,o,u,a,f,p,d,v,g,b,w,E,S,x;if("string"!=typeof e)throw new TypeError("GameWindow.loadFrame: uri must be string. Found: "+e);if(n&&"function"!=typeof n)throw new TypeError("GameWindow.loadFrame: func must be function or undefined. Found: "+n);if(r&&"object"!=typeof r)throw new TypeError("GameWindow.loadFrame: opts must be object or undefined. Found: "+r);r=r||{},v=this.getFrame(),g=this.frameName;if(!v)throw new Error("GameWindow.loadFrame: no frame found");if(!g)throw new Error("GameWindow.loadFrame: frame has no name");this.setStateLevel("LOADING"),i=this,w=v.contentWindow,b=W.getIFrameDocument(v),S=b.readyState,S=S==="complete",s=c.defaults.cacheDefaults.loadCache,o=c.defaults.cacheDefaults.storeCacheNow,u=c.defaults.cacheDefaults.storeCacheLater;if(r.cache){if(r.cache.loadMode)if(r.cache.loadMode==="reload")s=!1;else{if(r.cache.loadMode!=="cache")throw new Error("GameWindow.loadFrame: unkown cache load mode: "+r.cache.loadMode);s=!0}if(r.cache.storeMode)if(r.cache.storeMode==="off")o=!1,u=!1;else if(r.cache.storeMode==="onLoad")o=!0,u=!1;else{if(r.cache.storeMode!=="onClose")throw new Error("GameWindow.loadFrame: unkown cache store mode: "+r.cache.storeMode);o=!1,u=!0}}if("undefined"!=typeof r.autoParse){if("object"!=typeof r.autoParse)throw new TypeError("GameWindow.loadFrame: opts.autoParse must be object or undefined. Found: "+r.autoParse);if("undefined"!=typeof r.autoParsePrefix){if("string"!=typeof r.autoParsePrefix)throw new TypeError("GameWindow.loadFrame: opts.autoParsePrefix must be string or undefined. Found: "+r.autoParsePrefix);p=r.autoParsePrefix}if("undefined"!=typeof r.autoParseMod){if("string"!=typeof r.autoParseMod)throw new TypeError("GameWindow.loadFrame: opts.autoParseMod must be string or undefined. Found: "+r.autoParseMod);d=r.autoParseMod}f=r.autoParse}a="undefined"==typeof r.scrollUp?!0:r.scrollUp,this.unprocessedUri=e;if(this.cacheSupported===null){this.preCacheTest(function(){i.loadFrame(e,n,r)});return}e=this.processUri(e),this.cacheSupported===!1?(o=!1,u=!1,s=!1):(x=this.currentURIs[g],this.cache.hasOwnProperty(x)&&this.cache[x].cacheOnClose&&(E=b.documentElement,this.cache[x].contents=E.innerHTML),this.cache.hasOwnProperty(e)||(this.cache[e]={contents:null,cacheOnClose:!1}),this.cache[e].cacheOnClose=u,this.cache[e].contents===null&&(s=!1)),this.currentURIs[g]=e,m(this,1),v.style.visibility="hidden",(!s||!S)&&l(v,function(){i.directFrameDocumentAccess===null&&y(i),h(i,e,v,g,s,o,function(){i.updateLoadFrameState(n,f,d,p,a)})}),s?S&&h(this,e,v,g,s,o,function(){i.updateLoadFrameState(n,f,d,p,a)}):w.location.replace(e),w.node=t},c.prototype.processUri=function(e){return e.charAt(0)!=="/"&&e.substr(0,7)!=="http://"&&(this.uriPrefix&&(e=this.uriPrefix+e),this.uriChannel&&(e=this.uriChannel+e)),e},c.prototype.updateLoadFrameState=function(n,r,i,s,u){var a,f;a=m(this,-1),a&&this.setStateLevel("LOADED"),n&&n.call(t.game),r&&this.searchReplace(r,i,s),u&&e.scrollTo&&e.scrollTo(0,0),t.events.ee.game.emit("FRAME_LOADED"),t.events.ee.stage.emit("FRAME_LOADED"),t.events.ee.step.emit("FRAME_LOADED"),a?(f=t.game.getStageLevel(),f===o&&t.emit("LOADED")):t.silly("game-window: "+this.areLoading+" frames "+"still loading.")},c.prototype.clearPageBody=function(){this.reset(),document.body.innerHTML=""},c.prototype.clearPage=function(){this.reset();try{document.documentElement.innerHTML=""}catch(e){this.removeChildrenFromNode(document.documentElement)}},c.prototype.setUriPrefix=function(e){if(e!==null&&"string"!=typeof e)throw new TypeError("GameWindow.setUriPrefix: uriPrefix must be string or null. Found: "+e);this.conf.uriPrefix=this.uriPrefix=e},c.prototype.setUriChannel=function(e){if("string"==typeof e)e.charAt(0)!=="/"&&(e="/"+e),e.charAt(e.length-1)!=="/"&&(e+="/");else if(e!==null)throw new TypeError("GameWindow.uriChannel: uriChannel must be string or null. Found: "+e);this.uriChannel=e},c.prototype.adjustFrameHeight=function(){var t,n;return n=function(t){var n,r,i;W.adjustHeaderOffset(),n=W.getFrame();if(!n||!n.contentWindow)return;if(!n.contentWindow.document.body){W.adjustFrameHeight(t,120);return}W.conf.adjustFrameHeight===!1?r="100vh":(r=e.innerHeight||e.clientHeight,i=n.contentWindow.document.body.offsetHeight,i+=60,W.headerPosition==="top"&&(i+=W.headerOffset),r<i&&(r=i),r<(t||0)&&(r=t),r+="px"),n.style["min-height"]=r},function(e,r){if("undefined"==typeof r){n(e);return}if(W.willResizeFrame){t=!0;return}W.willResizeFrame=setTimeout(function(){W.willResizeFrame=null,t?(t=!1,W.adjustFrameHeight(e,r)):n(e)},r)}}(),c.prototype.adjustHeaderOffset=function(e){var t,n,r,i,s,o;r=W.getHeader(),t=W.headerPosition;if(!e&&(!r&&W.headerOffset||t==="top"&&r.offsetHeight===W.headerOffset))return;n=W.getFrame(),i=W.infoPanel;if(!n&&!i)return;switch(t){case"top":s=r?r.offsetHeight:0,o=s+"px",i&&i.isVisible?(i.infoPanelDiv.style["padding-top"]=o,n.style["padding-top"]=0):(i&&i.infoPanelDiv&&(i.infoPanelDiv.style["padding-top"]=0),n.style["padding-top"]=o);break;case"bottom":s=r?r.offsetHeight:0,o=s+"px",n.style["padding-bottom"]=o,i&&i.infoPanelDiv&&(i.infoPanelDiv.style["padding-top"]=0);break;case"right":s=r?r.offsetWidth:0,o=s+"px",n&&(n.style["padding-right"]=o),i&&i.isVisible&&(i.infoPanelDiv.style["padding-right"]=o);break;case"left":s=r?r.offsetWidth:0,o=s+"px",n&&(n.style["padding-left"]=o),i&&i.isVisible&&(i.infoPanelDiv.style["padding-left"]=o);break;default:if(t!==null)throw new Error("GameWindow.adjustHeaderOffset: invalid header position. Found: "+t);if(r)throw new Error("GameWindow.adjustHeaderOffset: something is wrong. Header found, but position is null.");n&&(n.style.padding=0),i&&i.infoPanelDiv&&(i.infoPanelDiv.padding=0)}W.headerOffset=s},t.GameWindow=c})("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e,t){var n=t.GameWindow;n.prototype.addDefaultSetups=function(){t.registerSetup("window",function(e){return this.window.init(e),e}),t.registerSetup("page",function(e){var t,n;if(!e)return;return e.clearBody&&this.window.clearPageBody(),e.clear&&this.window.clearPage(),"string"==typeof e.title&&(e.title={title:e.title}),"object"==typeof e.title&&(document.title=e.title.title,e.title.addToBody&&(t=document.createElement("h1"),t.className="ng-page-title",t.innerHTML=e.title.title,n=document.body,n.innerHTML===""?n.appendChild(t):n.insertBefore(t,n.firstChild))),e}),t.registerSetup("frame",function(e){var n,r,i,s,o,u,a;if(!e)return;if(e.generate){if("object"!=typeof e.generate){t.warn("node.setup.frame: conf.generate must be object or undefined.");return}if(e.generate.root){if("string"!=typeof e.generate.root){t.warn("node.setup.frame: conf.generate.root must be string or undefined.");return}a=e.generate.root,o=e.generate.force,s=e.generate.name}u=this.window.getElementById(a),u||(u=this.window.getScreen());if(!u){t.warn("node.setup.frame: could not find valid root element to generate new frame.");return}this.window.generateFrame(u,s,o)}"undefined"!=typeof e.uriPrefix&&this.window.setUriPrefix(e.uriPrefix);if(e.load){if("object"==typeof e.load)n=e.load.url,r=e.load.cb,i=e.load.options;else{if("string"!=typeof e.load){t.warn("node.setup.frame: conf.load must be string, object or undefined.");return}n=e.load}this.window.loadFrame(n,r,i)}return e.clear&&this.window.clearFrame(),e.destroy&&this.window.destroyFrame(),e}),t.registerSetup("header",function(e){var n,r,i,s;if(!e)return;if(e.generate){if("object"!=typeof e.generate){t.warn("node.setup.header: conf.generate must be object or undefined.");return}if(e.generate.root){if("string"!=typeof e.generate.root){t.warn("node.setup.header: conf.generate.root must be string or undefined.");return}s=e.generate.root,r=e.generate.force,n=e.generate.name}i=this.window.getElementById(s),i||(i=this.window.getScreen());if(!i){t.warn("node.setup.header: could not find valid root element to generate new header.");return}this.window.generateHeader(i,n,r)}if(e.position){if("string"!=typeof e.position){t.warn("node.setup.header: conf.position must be string or undefined.");return}this.window.setHeaderPosition(e.position)}return e.clear&&this.window.clearHeader(),e.destroy&&this.window.destroyHeader(),e})}}("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e,t){"use strict";var n=t.GameWindow,r=t.JSUS;n.prototype.noEscape=function(){var t;e.document.onkeydown=function(t){var n=e.event?event.keyCode:t.keyCode;if(n===27)return!1},t=this.getFrameDocument(),t&&(t.onkeydown=e.document.onkeydown),this.conf.noEscape=!0},n.prototype.restoreEscape=function(){var t;e.document.onkeydown=null,t=this.getFrameDocument(),t&&(t.onkeydown=null),this.conf.noEscape=!1},n.prototype.promptOnleave=function(t,n){t=t||e,n="undefined"!=typeof n?n:this.conf.promptOnleaveText,t.onbeforeunload=function(t){return t=t||e.event,t&&(t.returnValue=n),n},this.conf.promptOnleave=!0},n.prototype.restoreOnleave=function(t){t=t||e,t.onbeforeunload=null,this.conf.promptOnleave=!1},n.prototype.disableRightClick=function(){this.frameElement&&r.disableRightClick(this.getFrameDocument()),r.disableRightClick(document),this.conf.rightClickDisabled=!0},n.prototype.enableRightClick=function(){this.frameElement&&r.enableRightClick(this.getFrameDocument()),r.enableRightClick(document),this.conf.rightClickDisabled=!1},n.prototype.disableBackButton=function(e){this.conf.backButtonDisabled=r.disableBackButton(e)}}("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e,t){"use strict";var n=t.GameWindow,r=t.constants.screenLevels;n.prototype.lockScreen=function(e,t){if(!this.waitScreen)throw new Error("GameWindow.lockScreen: waitScreen not found");if(e&&"string"!=typeof e)throw new TypeError("GameWindow.lockScreen: text must be string or undefined. Found: "+e);if(t&&"number"!=typeof t||t<0)throw new TypeError("GameWindow.lockScreen: countdown must be a positive number or undefined. Found: "+t);this.setScreenLevel("LOCKING"),this.waitScreen.lock(e,t),this.setScreenLevel("LOCKED")},n.prototype.unlockScreen=function(){if(!this.waitScreen)throw new Error("GameWindow.unlockScreen: waitScreen not found.");if(!this.isScreenLocked())throw new Error("GameWindow.unlockScreen: screen is not locked.");this.setScreenLevel("UNLOCKING"),this.waitScreen.unlock(),this.setScreenLevel("ACTIVE")},n.prototype.isScreenLocked=function(){return this.getScreenLevel()!==r.ACTIVE}}("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e){"use strict";var t=e.GameWindow;t.prototype.addDefaultListeners=function(t){return this.listenersAdded&&!t?(e.err("node.window.addDefaultListeners: listeners already added once. Use the force flag to re-add."),!1):(e.on("NODEGAME_GAME_CREATED",function(){W.init(e.conf.window)}),e.on("INPUT_DISABLE",function(e){W.toggleInputs(e,!0)}),e.on("INPUT_ENABLE",function(e){W.toggleInputs(e,!1)}),e.on("INPUT_TOGGLE",function(e){W.toggleInputs(e)}),window.onunload=function(){var t;e.socket.disconnect();for(t=-1;++t<1e5;);},this.listenersAdded=!0,e.silly("node-window: listeners added."),!0)}}("undefined"!=typeof node?node:undefined),function(e,t){"use strict";function i(e,t){var i,s,o,u;"undefined"==typeof t&&(t=!0);for(i=-1;++i<r;){o=e.getElementsByTagName(n[i]),u=o.length;for(s=-1;++s<u;)t?o[s].disabled||(o[s].disabled=!0,W.waitScreen.lockedInputs.push(o[s])):o[s].disabled&&(o[s].disabled=!1)}t||(W.waitScreen.lockedInputs=[])}function s(e){var t;e=e||W.waitScreen.defaultTexts.waiting,node.game.shouldStep()||(W.isScreenLocked()?W.waitScreen.updateText(e):(node.game.timer.milliseconds&&(t=node.game.timer.milliseconds-node.timer.getTimeSince("step",!0)+2e3,t<0&&(t=0)),W.lockScreen(e,t)))}function o(){var e;e=W.waitScreen.defaultTexts.stepping,W.isScreenLocked()?W.waitScreen.updateText(e):W.lockScreen(e)}function u(){W.isScreenLocked()&&W.unlockScreen()}function a(e){e="string"==typeof e?e:W.waitScreen.defaultTexts.paused,W.isScreenLocked()?(W.waitScreen.beforePauseInnerHTML=W.waitScreen.contentDiv.innerHTML,W.waitScreen.updateText(e)):W.lockScreen(e)}function f(){W.isScreenLocked()&&(W.waitScreen.beforePauseInnerHTML!==null?(W.waitScreen.updateText(W.waitScreen.beforePauseInnerHTML),W.waitScreen.beforePauseInnerHTML=null):W.unlockScreen())}function l(e){e=e||{},this.id=e.id||"ng_waitScreen",this.root=e.root||null,this.waitingDiv=null,this.beforePauseInnerHTML=null,this.enabled=!1,this.contentDiv=null,this.countdownDiv=null,this.countdownSpan=null,this.countdown=null,this.displayCountdown="undefined"!=typeof e.displayCountdown?!!e.displayCountdown:!0,this.defaultTexts={locked:e.lockedText||"Screen locked. Please wait...",waiting:e.waitingText||"Waiting for other players to be done...",stepping:e.steppingText||"Initializing game step, will be ready soon...",paused:e.pausedText||"Game is paused. 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Use force to regenerate.");this.destroyHeader()}e=e||document.body||document.lastElementChild;if(!J.isElement(e))throw new Error("GameWindow.generateHeader: root must be undefined or HTMLElement. Found: "+e);t=t||"ng_header";if("string"!=typeof t)throw new Error("GameWindow.generateHeader: headerName must be string. Found: "+t);if(document.getElementById(t))throw new Error("GameWindow.generateHeader: headerName is not unique in DOM: "+t);return r=this.add("div",e,t),this.frameElement&&this.defaultHeaderPosition!=="bottom"&&this.getFrameRoot().insertBefore(r,this.frameElement),this.setHeader(r,t,e),this.setHeaderPosition(this.defaultHeaderPosition),r},c.prototype.setHeaderPosition=function(){var e;return e={top:"ng_header_position-horizontal-t",bottom:"ng_header_position-horizontal-b",right:"ng_header_position-vertical-r",left:"ng_header_position-vertical-l"},function(n){var r,i;if("string"!=typeof n)throw new TypeError("GameWindow.setHeaderPosition: position must be string. Found: "+n);r=n.toLowerCase();if(this.headerPosition===r)return;if("undefined"==typeof e[r]){t.err("GameWindow.setHeaderPosition: invalid header position: "+r);return}if(!this.headerElement)throw new Error("GameWindow.setHeaderPosition: headerElement not found.");W.removeClass(this.headerElement,"ng_header_position-[a-z-]*"),W.addClass(this.headerElement,e[r]),i=this.headerPosition,this.headerPosition=r,this.frameElement&&g(i)}}(),c.prototype.setHeader=function(e,n,r){if(!J.isElement(e))throw new Error("GameWindow.setHeader: header must be HTMLElement. Found: "+e);if("string"!=typeof n)throw new Error("GameWindow.setHeader: headerName must be string. Found: "+n);if(!J.isElement(r))throw new Error("GameWindow.setHeader: root must be HTMLElement. Found: "+r);return this.headerElement=e,this.headerName=n,this.headerRoot=r,t.events.ng.emit("HEADER_GENERATED",e),this.headerElement},c.prototype.getHeader=function(){return this.headerElement||(this.headerElement=this.headerName?document.getElementById(this.headerName):null),this.headerElement},c.prototype.getHeaderName=function(){var e;return this.headerName||(e=this.getHeader(),this.headerName=e?e.id:null),this.headerName},c.prototype.getHeaderRoot=function(){var e;return this.headerRoot||(e=this.getHeader(),this.headerRoot=e?e.parentNode:null),this.headerRoot},c.prototype.destroyHeader=function(){this.clearHeader(),this.headerRoot.removeChild(this.headerElement),this.headerElement=null,this.headerName=null,this.headerRoot=null,this.headerPosition=null,this.headerOffset=0,this.adjustHeaderOffset(!0)},c.prototype.clearHeader=function(){var e;e=this.getHeader();if(!e)throw new Error("GameWindow.clearHeader: cannot detect header");this.headerElement.innerHTML="",t.widgets.garbageCollection()},c.prototype.initLibs=function(e,t){if(e&&!J.isArray(e))throw new TypeError("GameWindow.initLibs: globalLibs must be array or undefined. Found: "+e);if(t&&"object"!=typeof t)throw new TypeError("GameWindow.initLibs: frameLibs must be object or undefined. Found: "+t);if(!e&&!t)throw new Error("GameWindow.initLibs: frameLibs and frameLibs cannot be both undefined.");this.globalLibs=this.globalLibs.concat(e||[]),J.mixin(this.frameLibs,t)},c.prototype.preCacheTest=function(e,n){var r,i;n=n||"/pages/testpage.htm";if("string"!=typeof n)throw new TypeError("GameWindow.precacheTest: uri must string or undefined. Found: "+n);r=document.createElement("iframe"),r.style.display="none",i="preCacheTest",r.id=i,r.name=i,document.body.appendChild(r),r.contentWindow.location.replace(n),l(r,function(){try{W.getIFrameDocument(r).documentElement.innerHTML="a",W.cacheSupported=!0}catch(n){W.cacheSupported=!1}try{document.body.removeChild(r)}catch(n){t.warn("W.preCacheTest: iframe already removed")}e&&e()})},c.prototype.preCache=function(n,r){var i,s,o,u,a,f;"string"==typeof n&&(n=[n]);if(!J.isArray(n))throw new TypeError("GameWindow.preCache: uris must be string or array. Found: "+n);if(r&&"function"!=typeof r)throw new TypeError("GameWindow.preCache: callback must be function or undefined. Found: "+r);if(!n.length){r&&r();return}i=this;if(this.cacheSupported===null){this.preCacheTest(function(){i.preCache(n,r)});return}if(this.cacheSupported===!1){t.warn("GameWindow.preCache: caching is not supported by your browser."),r&&r();return}s=0;for(u=0;u<n.length;u++)o=this.processUri(n[u]),a=document.createElement("iframe"),a.style.display="none",f="tmp_iframe_"+u,a.id=f,a.name=f,document.body.appendChild(a),function(e,t){l(t,function(){var o,u;o=W.getIFrameDocument(t),u=o.documentElement,i.cache[e]={contents:u.innerHTML,cacheOnClose:!1},document.body.removeChild(t),s++,s>=n.length&&r&&r()})}(o,a),e.frames[f].location.replace(o)},c.prototype.clearCache=function(){this.cache={}},c.prototype.getElementById=c.prototype.gid=function(e){var t,n;return n=this.getFrameDocument(),t=null,n&&n.getElementById&&(t=n.getElementById(e)),t||(t=document.getElementById(e)),t},c.prototype.getElementsByTagName=function(e){var t;return t=this.getFrameDocument(),t?t.getElementsByTagName(e):document.getElementsByTagName(e)},c.prototype.getElementsByClassName=function(e,t){var n;return n=this.getFrameDocument()||document,J.getElementsByClassName(n,e,t)},c.prototype.loadFrame=function(e,n,r){var i,s,o,u,a,f,p,d,v,g,b,w,E;if("string"!=typeof e)throw new TypeError("GameWindow.loadFrame: uri must be string. Found: "+e);if(n&&"function"!=typeof n)throw new TypeError("GameWindow.loadFrame: func must be function or undefined. Found: "+n);if(r&&"object"!=typeof r)throw new TypeError("GameWindow.loadFrame: opts must be object or undefined. Found: "+r);r=r||{},p=this.getFrame(),d=this.frameName;if(!p)throw new Error("GameWindow.loadFrame: no frame found");if(!d)throw new Error("GameWindow.loadFrame: frame has no name");this.setStateLevel("LOADING"),i=this,g=p.contentWindow,v=W.getIFrameDocument(p),w=v.readyState,w=w==="complete",s=c.defaults.cacheDefaults.loadCache,u=c.defaults.cacheDefaults.storeCacheNow,a=c.defaults.cacheDefaults.storeCacheLater;if(r.cache){if(r.cache.loadMode)if(r.cache.loadMode==="reload")s=!1;else{if(r.cache.loadMode!=="cache")throw new Error("GameWindow.loadFrame: unkown cache load mode: "+r.cache.loadMode);s=!0,o=!0}if(r.cache.storeMode)if(r.cache.storeMode==="off")u=!1,a=!1;else{if(r.cache.storeMode==="onLoad")u=!0,a=!1;else{if(r.cache.storeMode!=="onClose")throw new Error("GameWindow.loadFrame: unkown cache store mode: "+r.cache.storeMode);u=!1,a=!0}o=!0}}f="undefined"==typeof r.scrollUp?!0:r.scrollUp,this.unprocessedUri=e,o=!0;if(o&&this.cacheSupported===null){this.preCacheTest(function(){i.loadFrame(e,n,r)});return}e=this.processUri(e),this.cacheSupported===!1?(u=!1,a=!1,s=!1):(E=this.currentURIs[d],this.cache.hasOwnProperty(E)&&this.cache[E].cacheOnClose&&(b=v.documentElement,this.cache[E].contents=b.innerHTML),this.cache.hasOwnProperty(e)||(this.cache[e]={contents:null,cacheOnClose:!1}),this.cache[e].cacheOnClose=a,this.cache[e].contents===null&&(s=!1)),this.currentURIs[d]=e,m(this,1),p.style.visibility="hidden",(!s||!w)&&l(p,function(){i.directFrameDocumentAccess===null&&y(i),h(i,e,p,d,s,u,function(){i.updateLoadFrameState(n,f)})}),s?w&&h(this,e,p,d,s,u,function(){i.updateLoadFrameState(n,f)}):g.location.replace(e),g.node=t},c.prototype.processUri=function(e){return e.charAt(0)!=="/"&&e.substr(0,7)!=="http://"&&(this.uriPrefix&&(e=this.uriPrefix+e),this.uriChannel&&(e=this.uriChannel+e)),e},c.prototype.updateLoadFrameState=function(n,r){var i,s,u,a,f;a=m(this,-1),a&&this.setStateLevel("LOADED"),n&&n.call(t.game),r&&e.scrollTo&&e.scrollTo(0,0),i=t.game.getProperty("css"),i&&W.cssRule(i),s=t.game.getProperty("html"),s&&W.write(s),u=t.game.getProperty("replace"),u&&W.searchReplace(u,"g",""),t.events.ee.game.emit("FRAME_LOADED"),t.events.ee.stage.emit("FRAME_LOADED"),t.events.ee.step.emit("FRAME_LOADED"),a?(f=t.game.getStageLevel(),f===o&&t.emit("LOADED")):t.silly("game-window: "+this.areLoading+" frames "+"still loading.")},c.prototype.clearPageBody=function(){this.reset(),document.body.innerHTML=""},c.prototype.clearPage=function(){this.reset();try{document.documentElement.innerHTML=""}catch(e){this.removeChildrenFromNode(document.documentElement)}},c.prototype.setUriPrefix=function(e){if(e!==null&&"string"!=typeof e)throw new TypeError("GameWindow.setUriPrefix: uriPrefix must be string or null. Found: "+e);this.conf.uriPrefix=this.uriPrefix=e},c.prototype.setUriChannel=function(e){if("string"==typeof e)e.charAt(0)!=="/"&&(e="/"+e),e.charAt(e.length-1)!=="/"&&(e+="/");else if(e!==null)throw new TypeError("GameWindow.uriChannel: uriChannel must be string or null. Found: "+e);this.uriChannel=e},c.prototype.adjustFrameHeight=function(){var t,n;return n=function(t){var n,r,i;W.adjustHeaderOffset(),n=W.getFrame();if(!n||!n.contentWindow)return;if(!n.contentWindow.document.body){W.adjustFrameHeight(t,120);return}W.conf.adjustFrameHeight===!1?r="100vh":(r=e.innerHeight||e.clientHeight,i=n.contentWindow.document.body.offsetHeight,i+=60,W.headerPosition==="top"&&(i+=W.headerOffset),r<i&&(r=i),r<(t||0)&&(r=t),r+="px"),n.style["min-height"]=r},function(e,r){if("undefined"==typeof r){n(e);return}if(W.willResizeFrame){t=!0;return}W.willResizeFrame=setTimeout(function(){W.willResizeFrame=null,t?(t=!1,W.adjustFrameHeight(e,r)):n(e)},r)}}(),c.prototype.adjustHeaderOffset=function(e){var t,n,r,i,s,o;r=W.getHeader(),t=W.headerPosition;if(!e&&(!r&&W.headerOffset||t==="top"&&r.offsetHeight===W.headerOffset))return;n=W.getFrame(),i=W.infoPanel;if(!n&&!i)return;switch(t){case"top":s=r?r.offsetHeight:0,o=s+"px",i&&i.isVisible?(i.infoPanelDiv.style["padding-top"]=o,n.style["padding-top"]=0):(i&&i.infoPanelDiv&&(i.infoPanelDiv.style["padding-top"]=0),n.style["padding-top"]=o);break;case"bottom":s=r?r.offsetHeight:0,o=s+"px",n.style["padding-bottom"]=o,i&&i.infoPanelDiv&&(i.infoPanelDiv.style["padding-top"]=0);break;case"right":s=r?r.offsetWidth:0,o=s+"px",n&&(n.style["padding-right"]=o),i&&i.isVisible&&(i.infoPanelDiv.style["padding-right"]=o);break;case"left":s=r?r.offsetWidth:0,o=s+"px",n&&(n.style["padding-left"]=o),i&&i.isVisible&&(i.infoPanelDiv.style["padding-left"]=o);break;default:if(t!==null)throw new Error("GameWindow.adjustHeaderOffset: invalid header position. Found: "+t);if(r)throw new Error("GameWindow.adjustHeaderOffset: something is wrong. Header found, but position is null.");n&&(n.style.padding=0),i&&i.infoPanelDiv&&(i.infoPanelDiv.padding=0)}W.headerOffset=s},c.prototype.cssRule=function(t,n){var r;if("string"!=typeof t)throw new TypeError(G+"cssRule: style property must be "+"string. Found: "+t);return this.styleElement?n&&(this.styleElement.innerHTML=""):(r=W.getFrameDocument()||e.document,this.styleElement=W.append("style",r.head,{type:"text/css",id:"ng_style"})),this.styleElement.innerHTML+=t,this.styleElement},t.GameWindow=c})("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e,t){var n=t.GameWindow;n.prototype.addDefaultSetups=function(){t.registerSetup("window",function(e){return this.window.init(e),e}),t.registerSetup("page",function(e){var t,n;if(!e)return;return e.clearBody&&this.window.clearPageBody(),e.clear&&this.window.clearPage(),"string"==typeof e.title&&(e.title={title:e.title}),"object"==typeof e.title&&(document.title=e.title.title,e.title.addToBody&&(t=document.createElement("h1"),t.className="ng-page-title",t.innerHTML=e.title.title,n=document.body,n.innerHTML===""?n.appendChild(t):n.insertBefore(t,n.firstChild))),e}),t.registerSetup("frame",function(e){var n,r,i,s,o,u,a;if(!e)return;if(e.generate){if("object"!=typeof e.generate){t.warn("node.setup.frame: conf.generate must be object or undefined.");return}if(e.generate.root){if("string"!=typeof e.generate.root){t.warn("node.setup.frame: conf.generate.root must be string or undefined.");return}a=e.generate.root,o=e.generate.force,s=e.generate.name}u=this.window.getElementById(a),u||(u=this.window.getScreen());if(!u){t.warn("node.setup.frame: could not find valid root element to generate new frame.");return}this.window.generateFrame(u,s,o)}"undefined"!=typeof e.uriPrefix&&this.window.setUriPrefix(e.uriPrefix);if(e.load){if("object"==typeof e.load)n=e.load.url,r=e.load.cb,i=e.load.options;else{if("string"!=typeof e.load){t.warn("node.setup.frame: conf.load must be string, object or undefined.");return}n=e.load}this.window.loadFrame(n,r,i)}return e.clear&&this.window.clearFrame(),e.destroy&&this.window.destroyFrame(),e}),t.registerSetup("header",function(e){var n,r,i,s;if(!e)return;if(e.generate){if("object"!=typeof e.generate){t.warn("node.setup.header: conf.generate must be object or undefined.");return}if(e.generate.root){if("string"!=typeof e.generate.root){t.warn("node.setup.header: conf.generate.root must be string or undefined.");return}s=e.generate.root,r=e.generate.force,n=e.generate.name}i=this.window.getElementById(s),i||(i=this.window.getScreen());if(!i){t.warn("node.setup.header: could not find valid root element to generate new header.");return}this.window.generateHeader(i,n,r)}if(e.position){if("string"!=typeof e.position){t.warn("node.setup.header: conf.position must be string or undefined.");return}this.window.setHeaderPosition(e.position)}return e.clear&&this.window.clearHeader(),e.destroy&&this.window.destroyHeader(),e})}}("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e,t){"use strict";var n=t.GameWindow,r=t.JSUS;n.prototype.noEscape=function(){var t;e.document.onkeydown=function(t){var n=e.event?event.keyCode:t.keyCode;if(n===27)return!1},t=this.getFrameDocument(),t&&(t.onkeydown=e.document.onkeydown),this.conf.noEscape=!0},n.prototype.restoreEscape=function(){var t;e.document.onkeydown=null,t=this.getFrameDocument(),t&&(t.onkeydown=null),this.conf.noEscape=!1},n.prototype.promptOnleave=function(t,n){t=t||e,n="undefined"!=typeof n?n:this.conf.promptOnleaveText,t.onbeforeunload=function(t){return t=t||e.event,t&&(t.returnValue=n),n},this.conf.promptOnleave=!0},n.prototype.restoreOnleave=function(t){t=t||e,t.onbeforeunload=null,this.conf.promptOnleave=!1},n.prototype.disableRightClick=function(){this.frameElement&&r.disableRightClick(this.getFrameDocument()),r.disableRightClick(document),this.conf.rightClickDisabled=!0},n.prototype.enableRightClick=function(){this.frameElement&&r.enableRightClick(this.getFrameDocument()),r.enableRightClick(document),this.conf.rightClickDisabled=!1},n.prototype.disableBackButton=function(e){this.conf.backButtonDisabled=r.disableBackButton(e)}}("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e,t){"use strict";var n=t.GameWindow,r=t.constants.screenLevels;n.prototype.lockScreen=function(e,t){if(!this.waitScreen)throw new Error("GameWindow.lockScreen: waitScreen not found");if(e&&"string"!=typeof e)throw new TypeError("GameWindow.lockScreen: text must be string or undefined. Found: "+e);if(t&&"number"!=typeof t||t<0)throw new TypeError("GameWindow.lockScreen: countdown must be a positive number or undefined. Found: "+t);this.setScreenLevel("LOCKING"),this.waitScreen.lock(e,t),this.setScreenLevel("LOCKED")},n.prototype.unlockScreen=function(){if(!this.waitScreen)throw new Error("GameWindow.unlockScreen: waitScreen not found.");if(!this.isScreenLocked())throw new Error("GameWindow.unlockScreen: screen is not locked.");this.setScreenLevel("UNLOCKING"),this.waitScreen.unlock(),this.setScreenLevel("ACTIVE")},n.prototype.isScreenLocked=function(){return this.getScreenLevel()!==r.ACTIVE}}("undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof window?window.node:module.parent.exports.node),function(e){"use strict";var t=e.GameWindow;t.prototype.addDefaultListeners=function(t){return this.listenersAdded&&!t?(e.err("node.window.addDefaultListeners: listeners already added once. Use the force flag to re-add."),!1):(e.on("NODEGAME_GAME_CREATED",function(){W.init(e.conf.window)}),e.on("INPUT_DISABLE",function(e){W.toggleInputs(e,!0)}),e.on("INPUT_ENABLE",function(e){W.toggleInputs(e,!1)}),e.on("INPUT_TOGGLE",function(e){W.toggleInputs(e)}),window.onunload=function(){var t;e.socket.disconnect();for(t=-1;++t<1e5;);},this.listenersAdded=!0,e.silly("node-window: listeners added."),!0)}}("undefined"!=typeof node?node:undefined),function(e,t){"use strict";function i(e,t){var i,s,o,u;"undefined"==typeof t&&(t=!0);for(i=-1;++i<r;){o=e.getElementsByTagName(n[i]),u=o.length;for(s=-1;++s<u;)t?o[s].disabled||(o[s].disabled=!0,W.waitScreen.lockedInputs.push(o[s])):o[s].disabled&&(o[s].disabled=!1)}t||(W.waitScreen.lockedInputs=[])}function s(e){var t;e=e||W.waitScreen.defaultTexts.waiting,node.game.shouldStep()||(W.isScreenLocked()?W.waitScreen.updateText(e):(node.game.timer.milliseconds&&(t=node.game.timer.milliseconds-node.timer.getTimeSince("step",!0)+2e3,t<0&&(t=0)),W.lockScreen(e,t)))}function o(){var e;e=W.waitScreen.defaultTexts.stepping,W.isScreenLocked()?W.waitScreen.updateText(e):W.lockScreen(e)}function u(){W.isScreenLocked()&&W.unlockScreen()}function a(e){e="string"==typeof e?e:W.waitScreen.defaultTexts.paused,W.isScreenLocked()?(W.waitScreen.beforePauseInnerHTML=W.waitScreen.contentDiv.innerHTML,W.waitScreen.updateText(e)):W.lockScreen(e)}function f(){W.isScreenLocked()&&(W.waitScreen.beforePauseInnerHTML!==null?(W.waitScreen.updateText(W.waitScreen.beforePauseInnerHTML),W.waitScreen.beforePauseInnerHTML=null):W.unlockScreen())}function l(e){e=e||{},this.id=e.id||"ng_waitScreen",this.root=e.root||null,this.waitingDiv=null,this.beforePauseInnerHTML=null,this.enabled=!1,this.contentDiv=null,this.countdownDiv=null,this.countdownSpan=null,this.countdown=null,this.displayCountdown="undefined"!=typeof e.displayCountdown?!!e.displayCountdown:!0,this.defaultTexts={locked:e.lockedText||"Screen locked. Please wait...",waiting:e.waitingText||"Waiting for other players to be done...",stepping:e.steppingText||"Initializing game step, will be ready soon...",paused:e.pausedText||"Game is paused. Please wait.",countdown:e.countdownResumingText||"<br>Do not refresh the page!<br>Maximum Waiting Time: ",countdownResuming:e.countdownResumingText||"Resuming soon...",formatCountdown:function(e){var t;return t="",e=J.parseMilliseconds(e),e[2]&&(t+=e[2]+" min "),e[3]&&(t+=e[3]+" sec"),t||0}},this.lockedInputs=[],this.enable()}e.WaitScreen=l,l.version="0.10.0",l.description="Shows a waiting screen";var n,r;n=["button","select","textarea","input"],r=n.length,l.prototype.enable=function(){if(this.enabled)return;node.events.ee.game.on("REALLY_DONE",s),node.events.ee.game.on("STEPPING",o),node.events.ee.game.on("PLAYING",u),node.events.ee.game.on("PAUSED",a),node.events.ee.game.on("RESUMED",f),this.enabled=!0},l.prototype.disable=function(){if(!this.enabled)return;node.events.ee.game.off("REALLY_DONE",s),node.events.ee.game.off("STEPPING",o),node.events.ee.game.off("PLAYING",u),node.events.ee.game.off("PAUSED",a),node.events.ee.game.off("RESUMED",f),this.enabled=!1},l.prototype.lock=function(e,t){var n,r;r=this.defaultTexts,"undefined"==typeof e&&(e=r.locked),"undefined"==typeof document.getElementsByTagName&&node.warn("WaitScreen.lock: cannot lock inputs"),i(document),n=W.getFrameDocument(),n&&i(n),this.waitingDiv||(this.root||(this.root=W.getFrameRoot()||document.body),this.waitingDiv=W.add("div",this.root,this.id),this.contentDiv=W.add("div",this.waitingDiv,"ng_waitscreen-content-div")),this.waitingDiv.style.display==="none"&&(this.waitingDiv.style.display=""),this.contentDiv.innerHTML=e,this.displayCountdown&&t?(this.countdownDiv||(this.countdownDiv=W.add("div",this.waitingDiv,"ng_waitscreen-countdown-div"),this.countdownDiv.innerHTML=r.countdown,this.countdownSpan=W.add("span",this.countdownDiv,"ng_waitscreen-countdown-span")),this.countdown=t,this.countdownSpan.innerHTML=r.formatCountdown(t),this.countdownDiv.style.display="",this.countdownInterval=setInterval(function(){var e;e=W.waitScreen;if(!W.isScreenLocked()){clearInterval(e.countdownInterval);return}e.countdown-=1e3,e.countdown<0?(clearInterval(e.countdownInterval),e.countdownDiv.style.display="none",e.contentDiv.innerHTML=r.countdownResuming):e.countdownSpan.innerHTML=r.formatCountdown(e.countdown)},1e3)):this.countdownDiv&&(this.countdownDiv.style.display="none")},l.prototype.unlock=function(){var e,t;this.waitingDiv&&this.waitingDiv.style.display===""&&(this.waitingDiv.style.display="none"),this.countdownInterval&&clearInterval(this.countdownInterval);try{t=this.lockedInputs.length;for(e=-1;++e<t;)this.lockedInputs[e].removeAttribute("disabled");this.lockedInputs=[]}catch(n){i(W.getIFrameDocument(W.getFrame()),!1)}},l.prototype.updateText=function(e,t){t=t||!1;if("string"!=typeof e)throw new TypeError("WaitScreen.updateText: text must be string. 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this.pointers[e]},u.prototype.addMultiple=function(e,t,n,r){var i,s,o,u;f("addMultiple",e,n,r);if(t&&"string"!=typeof t||t&&"undefined"==typeof this.pointers[t])throw new TypeError("Table.addMultiple: dim must be a valid dimension (x or y) or undefined.");t=t||"x",n=this.getCurrPointer("x",n),r=this.getNextPointer("y",r),n="undefined"!=typeof n?n:this.pointers.x===null?0:this.pointers.x,r="undefined"!=typeof r?r:this.pointers.y===null?0:this.pointers.y,J.isArray(e)||(e=[e]),i=-1,s=e.length;for(;++i<s;)if(!J.isArray(e[i]))t==="x"?this.add(e[i],n,r+i,"x"):this.add(e[i],n+i,r,"y");else{o=-1,u=e[i].length;for(;++o<u;)t==="x"?this.add(e[i][o],n+i,r+o,"x"):this.add(e[i][o],n+o,r+i,"y")}this.autoParse&&this.parse()},u.prototype.add=function(e,t,n,r){var i;f("add",e,t,n);if(r&&"string"!=typeof r||r&&"undefined"==typeof this.pointers[r])throw new TypeError("Table.add: dim must be a valid string (x, y) or undefined.");r=r||"x",t=r==="y"?this.getCurrPointer("x",t):this.getNextPointer("x",t),n=r==="y"?this.getNextPointer("y",n):this.getCurrPointer("y",n),e&&"object"==typeof e&&"undefined"!=typeof e.content?("undefined"==typeof e.x&&(e.x=t),"undefined"==typeof e.y&&(e.y=n),i=new c(e)):i=new c({x:t,y:n,content:e}),this.insert(i),this.updatePointer("x",t),this.updatePointer("y",n)},u.prototype.addColumn=function(e,t,n){return f("addColumn",e,t,n),this.addMultiple(e,"y",t||0,this.getNextPointer("y",n))},u.prototype.addRow=function(e,t,n){return f("addRow",e,t,n),this.addMultiple(e,"x",this.getNextPointer("x",t),n||0)},u.prototype.getNextPointer=function(e,t){return"undefined"!=typeof t?t:this.pointers[e]===null?0:this.pointers[e]+1},u.prototype.getCurrPointer=function(e,t){return"undefined"!=typeof t?t:this.pointers[e]===null?0:this.pointers[e]},u.prototype.parse=function(){var e,t,n,i,s,o,u,a,f,l,c,h,p,d;this.table&&this.table.children&&(this.table.innerHTML=""),e=this.table;if(this.header&&this.header.length){i=r.createElement("thead"),t=r.createElement("tr"),this.trCb&&this.trCb(t,"thead"),this.trs.thead=t,this.left&&this.left.length&&t.appendChild(r.createElement("th")),u=-1,f=this.header.length;for(;++u<f;)t.appendChild(this.renderCell(this.header[u],"th"));i.appendChild(t),e.appendChild(i)}if(this.size()){s=r.createElement("tbody"),this.sort(["x","y"]),l=-1,c=this.first(),h=c.y,p=0,u=-1,f=this.db.length;for(;++u<f;){l!==this.db[u].x&&(t=r.createElement("tr"),this.trCb&&this.trCb(t,l+1),this.trs[l+1]=t,s.appendChild(t),l=this.db[u].x,h=c.y-1,this.left&&this.left.length&&(n=r.createElement("td"),t.appendChild(this.renderCell(this.left[p])),p++));if(this.db[u].y>h+1){d=this.db[u].y-(h+1);for(a=0;a<d;a++)n=r.createElement("td"),n.className=this.missingClassName,t.appendChild(n)}t.appendChild(this.renderCell(this.db[u])),h=this.db[u].y}e.appendChild(s)}if(this.footer&&this.footer.length){o=r.createElement("tfoot"),t=r.createElement("tr"),this.trCb&&this.trCb(t,"tfoot"),this.trs.tfoot=t,this.header&&this.header.length&&(n=r.createElement("td"),t.appendChild(n)),u=-1,f=this.footer.length;for(;++u<f;)t.appendChild(this.renderCell(this.footer[u]));o.appendChild(t),e.appendChild(o)}return e},u.prototype.resetPointers=function(e){if(e&&"object"!=typeof e)throw new TypeError("Table.resetPointers: pointers must be object or undefined.");e=e||{},this.pointers={x:e.pointerX||0,y:e.pointerY||0}},u.prototype.addClass=function(e,t,n){var r;if(J.isArray(e))e=e.join(" ");else if("string"!=typeof e)throw new TypeError("Table.addClass: className must be string or array.");a("addClass",t,n),r=this;if("undefined"!=typeof t||"undefined"!=typeof n)"undefined"!=typeof t&&(r=r.select("x","=",t)),"undefined"!=typeof n&&(r=r.and("y","=",n));return r.each(function(t){W.addClass(t,e,!0),t.HTMLElement&&(t.HTMLElement.className=t.className)}),this},u.prototype.removeClass=function(e,t,n){var r,i;if(J.isArray(e))r=function(e,t){for(var n=0;n<t.length;n++)W.removeClass(e,t[n])};else if("string"==typeof e)r=W.removeClass;else{if(null!==e)throw new TypeError("Table.removeClass: className must be string, array, or null.");r=function(e){e.className=""}}a("removeClass",t,n),i=this;if("undefined"!=typeof t||"undefined"!=typeof n)"undefined"!=typeof t&&(i=i.select("x","=",t)),"undefined"!=typeof n&&(i=i.and("y","=",n));return i.each(function(t){r.call(this,t,e),t.HTMLElement&&(t.HTMLElement.className=t.className)}),this},u.prototype.clear=function(){i.prototype.clear.call(this,!0),this.resetPointers()},c.prototype=new o,c.prototype.constructor=c}("undefined"!=typeof node?node.window||node:module.exports,"undefined"!=typeof window?window:module.parent.exports.window,"undefined"!=typeof node?node:module.parent.exports.node)
\ No newline at end of file
diff --git a/lib/GameWindow.js b/lib/GameWindow.js
index 8bfb8e6..829db27 100644
--- a/lib/GameWindow.js
+++ b/lib/GameWindow.js
@@ -1,6 +1,6 @@
 /**
  * # GameWindow
- * Copyright(c) 2021 Stefano Balietti <ste@nodegame.org>
+ * Copyright(c) 2023 Stefano Balietti <ste@nodegame.org>
  * MIT Licensed
  *
  * API to interface nodeGame with the browser window
@@ -1346,6 +1346,7 @@
      */
     GameWindow.prototype.preCacheTest = function(cb, uri) {
         var iframe, iframeName;
+
         uri = uri || '/pages/testpage.htm';
         if ('string' !== typeof uri) {
             throw new TypeError('GameWindow.precacheTest: uri must string ' +
@@ -1372,8 +1373,15 @@
             catch(e) {
                 W.cacheSupported = false;
             }
+            // It's possible that it was already removed if two calls
+            // to preCacheTest are made one after the other.
+            try {
+                document.body.removeChild(iframe);
+            }
+            catch(e) {
+                node.warn('W.preCacheTest: iframe already removed');
+            }
 
-            document.body.removeChild(iframe);
             if (cb) cb();
         });
     };
@@ -1599,9 +1607,8 @@
     GameWindow.prototype.loadFrame = function(uri, func, opts) {
         var that;
         var loadCache;
-        var storeCacheNow, storeCacheLater;
+        var shouldTestCache, storeCacheNow, storeCacheLater;
         var scrollUp;
-        var autoParse, autoParsePrefix, autoParseMod;
         var iframe, iframeName, iframeDocument, iframeWindow;
         var frameDocumentElement, frameReady;
         var lastURI;
@@ -1658,6 +1665,7 @@
                 }
                 else if (opts.cache.loadMode === 'cache') {
                     loadCache = true;
+                    shouldTestCache = true;
                 }
                 else {
                     throw new Error('GameWindow.loadFrame: unkown cache ' +
@@ -1669,48 +1677,24 @@
                     storeCacheNow = false;
                     storeCacheLater = false;
                 }
-                else if (opts.cache.storeMode === 'onLoad') {
-                    storeCacheNow = true;
-                    storeCacheLater = false;
-                }
-                else if (opts.cache.storeMode === 'onClose') {
-                    storeCacheNow = false;
-                    storeCacheLater = true;
-                }
                 else {
-                    throw new Error('GameWindow.loadFrame: unkown cache ' +
-                                    'store mode: ' + opts.cache.storeMode);
-                }
-            }
-        }
 
-        // Parsing options.
+                    if (opts.cache.storeMode === 'onLoad') {
+                        storeCacheNow = true;
+                        storeCacheLater = false;
+                    }
+                    else if (opts.cache.storeMode === 'onClose') {
+                        storeCacheNow = false;
+                        storeCacheLater = true;
+                    }
+                    else {
+                        throw new Error('GameWindow.loadFrame: unkown cache ' +
+                                        'store mode: ' + opts.cache.storeMode);
+                    }
 
-        if ('undefined' !== typeof opts.autoParse) {
-            if ('object' !== typeof opts.autoParse) {
-                throw new TypeError('GameWindow.loadFrame: opts.autoParse ' +
-                                    'must be object or undefined. Found: ' +
-                                    opts.autoParse);
-            }
-            if ('undefined' !== typeof opts.autoParsePrefix) {
-                if ('string' !== typeof opts.autoParsePrefix) {
-                    throw new TypeError('GameWindow.loadFrame: opts.' +
-                                        'autoParsePrefix must be string ' +
-                                        'or undefined. Found: ' +
-                                        opts.autoParsePrefix);
-                }
-                autoParsePrefix = opts.autoParsePrefix;
-            }
-            if ('undefined' !== typeof opts.autoParseMod) {
-                if ('string' !== typeof opts.autoParseMod) {
-                    throw new TypeError('GameWindow.loadFrame: opts.' +
-                                        'autoParseMod must be string ' +
-                                        'or undefined. Found: ' +
-                                        opts.autoParseMod);
+                    shouldTestCache = true;
                 }
-                autoParseMod = opts.autoParseMod;
             }
-            autoParse = opts.autoParse;
         }
 
         // Scroll Up.
@@ -1720,7 +1704,8 @@
         // Store unprocessed uri parameter.
         this.unprocessedUri = uri;
 
-        if (this.cacheSupported === null) {
+        shouldTestCache = true;
+        if (shouldTestCache && this.cacheSupported === null) {
             this.preCacheTest(function() {
                 that.loadFrame(uri, func, opts);
             });
@@ -1789,13 +1774,9 @@
                 handleFrameLoad(that, uri, iframe, iframeName, loadCache,
                                 storeCacheNow, function() {
 
-                                    // Executes callback, autoParses,
+                                    // Executes callback, css, replace, html,
                                     // and updates GameWindow state.
-                                    that.updateLoadFrameState(func,
-                                                              autoParse,
-                                                              autoParseMod,
-                                                              autoParsePrefix,
-                                                              scrollUp);
+                                    that.updateLoadFrameState(func, scrollUp);
                                 });
             });
         }
@@ -1811,13 +1792,9 @@
                 handleFrameLoad(this, uri, iframe, iframeName, loadCache,
                                 storeCacheNow, function() {
 
-                                    // Executes callback
+                                    // Executes callback, css, replace, html,
                                     // and updates GameWindow state.
-                                    that.updateLoadFrameState(func,
-                                                              autoParse,
-                                                              autoParseMod,
-                                                              autoParsePrefix,
-                                                              scrollUp);
+                                    that.updateLoadFrameState(func, scrollUp);
                                 });
             }
         }
@@ -1860,14 +1837,10 @@
      * - decrements the counter of loading iframes
      * - executes a given callback function
      * - auto parses the elements specified (if any)
+     * - updates UI, e.g., scroll-up or adds CSS
      * - set the window state as loaded (eventually)
      *
      * @param {function} func Optional. A callback function
-     * @param {object} autoParse Optional. An object containing elements
-     *    to replace in the HTML DOM.
-     * @param {string} autoParseMod Optional. Modifier for search and replace
-     * @param {string} autoParsePrefix Optional. Custom prefix to add to the
-     *    keys of the elements in autoParse object
      * @param {boolean} scrollUp Optional. If TRUE, scrolls the page to the,
      *    top (if window.scrollTo is defined). Default: FALSE.
      *
@@ -1877,20 +1850,23 @@
      * @emit FRAME_LOADED
      * @emit LOADED
      */
-    GameWindow.prototype.updateLoadFrameState = function(func, autoParse,
-                                                         autoParseMod,
-                                                         autoParsePrefix,
-                                                         scrollUp) {
+    GameWindow.prototype.updateLoadFrameState = function(func, scrollUp) {
 
-        var loaded, stageLevel;
+        var css, html, replace, loaded, stageLevel;
         loaded = updateAreLoading(this, -1);
         if (loaded) this.setStateLevel('LOADED');
         if (func) func.call(node.game);
-        if (autoParse) {
-            this.searchReplace(autoParse, autoParseMod, autoParsePrefix);
-        }
         if (scrollUp && window.scrollTo) window.scrollTo(0,0);
 
+        css = node.game.getProperty('css');
+        if (css) W.cssRule(css);
+
+        html = node.game.getProperty('html');
+        if (html) W.write(html);
+
+        replace = node.game.getProperty('replace');
+        if (replace) W.searchReplace(replace, 'g', '');
+
         // ng event emitter is not used.
         node.events.ee.game.emit('FRAME_LOADED');
         node.events.ee.stage.emit('FRAME_LOADED');
@@ -2159,6 +2135,40 @@
     };
 
 
+    /**
+     * ### GameWindow.cssRule
+     *
+     * Add a css rule to the page
+     *
+     * @param {string} rule The css rule
+     * @param {boolean} clear Optional. TRUE to clear all previous rules
+     *   added with this method to the page
+     *
+     * @return {Element} The HTML style element where the rules were added
+     *
+     * @see handleFrameLoad
+     */
+    GameWindow.prototype.cssRule = function(rule, clear) {
+        var root;
+        if ('string' !== typeof rule) {
+            throw new TypeError(G + 'cssRule: style property must be ' +
+                                'string. Found: ' + rule);
+        }
+        if (!this.styleElement) {
+            root = W.getFrameDocument() || window.document;
+            this.styleElement = W.append('style', root.head, {
+                type: 'text/css',
+                id: 'ng_style'
+            });
+        }
+        else if (clear) {
+            this.styleElement.innerHTML = '';
+        }
+        this.styleElement.innerHTML += rule;
+        return this.styleElement;
+    };
+
+
     // ## Helper functions
 
     /**
diff --git a/lib/modules/extra.js b/lib/modules/extra.js
index f0558ff..78310ef 100644
--- a/lib/modules/extra.js
+++ b/lib/modules/extra.js
@@ -1,6 +1,6 @@
 /**
  * # extra
- * Copyright(c) 2022 Stefano Balietti
+ * Copyright(c) 2023 Stefano Balietti
  * MIT Licensed
  *
  * GameWindow extras
@@ -14,15 +14,20 @@
     var GameWindow = node.GameWindow;
     var DOM = J.require('DOM');
 
+    var G = 'GameWindow.';
+
+    // ### BASIC.
+
     /**
      * ### GameWindow.getScreen
      *
      * Returns the "screen" of the game
      *
-     * i.e. the innermost element inside which to display content
+     * i.e., the innermost element inside which to display content
      *
      * In the following order the screen can be:
      *
+     * - the element with id "container" (presumably inside the iframe)
      * - the body element of the iframe
      * - the document element of the iframe
      * - the body element of the document
@@ -32,45 +37,43 @@
      */
     GameWindow.prototype.getScreen = function() {
         var el;
-        el = this.getFrameDocument();
-        if (el) el = el.body || el;
-        else el = document.body || document.lastElementChild;
+        el = this.gid('container');
+        if (!el) {
+            el = this.getFrameDocument();
+            if (el) el = el.body || el;
+            else el = document.body || document.lastElementChild;
+        }
         return el;
     };
 
     /**
-     * ### GameWindow.cssRule
+     * ### GameWindow.uniqueId|generateUniqueId
      *
-     * Add a css rule to the page
+     * Generates a unique id
      *
-     * @param {string} rule The css rule
-     * @param {boolean} clear Optional. TRUE to clear all previous rules
-     *   added with this method to the page
+     * Overrides JSUS.DOM.generateUniqueId.
+     *
+     * @param {string} prefix Optional. The prefix to use
      *
-     * @return {Element} The HTML style element where the rules were added
+     * @return {string} The generated id
      *
-     * @see handleFrameLoad
+     * @experimental
+     * TODO: it is not always working fine.
      */
-    GameWindow.prototype.cssRule = function(rule, clear) {
-        var root;
-        if ('string' !== typeof rule) {
-            throw new TypeError('Game.execStep: style property must be ' +
-                                'string. Found: ' + rule);
-        }
-        if (!this.styleElement) {
-            root = W.getFrameDocument() || window.document;
-            this.styleElement = W.append('style', root.head, {
-                type: 'text/css',
-                id: 'ng_style'
-            });
-        }
-        else if (clear) {
-            this.styleElement.innerHTML = '';
-        }
-        this.styleElement.innerHTML += rule;
-        return this.styleElement;
+    GameWindow.prototype.uniqueId =
+    GameWindow.prototype.generateUniqueId = function(prefix) {
+        var id, found;
+        id = '' + (prefix || J.randomInt(0, 1000));
+        found = this.gid(id);
+        while (found) {
+            id = '' + prefix + '_' + J.randomInt(0, 1000);
+            found = this.gid(id);
+        }
+        return id;
     };
 
+    // ### WRITE TO SCREEN.
+
     /**
      * ### GameWindow.write
      *
@@ -84,17 +87,13 @@
      *
      * @return {string|object} The content written
      *
+     * @see JSUS.write
      * @see GameWindow.writeln
+     * @see getDefaultRoot
      */
     GameWindow.prototype.write = function(text, root) {
-        if ('string' === typeof root) root = this.getElementById(root);
-        else if (!root) root = this.getScreen();
-
-        if (!root) {
-            throw new
-                Error('GameWindow.write: could not determine where to write');
-        }
-        return DOM.write(root, text);
+        root = getDefaultRoot(root, 'write');
+        return DOM.write2(root, text);
     };
 
     /**
@@ -110,99 +109,253 @@
      *
      * @return {string|object} The content written
      *
+     * @see JSUS.writeln
      * @see GameWindow.write
+     * @see getDefaultRoot
      */
     GameWindow.prototype.writeln = function(text, root, br) {
-        if ('string' === typeof root) root = this.getElementById(root);
-        else if (!root) root = this.getScreen();
+        root = getDefaultRoot(root, 'writeln');
+        return DOM.writeln2(root, text, br);
+    };
 
-        if (!root) {
-            throw new Error('GameWindow.writeln: ' +
-                            'could not determine where to write');
-        }
-        return DOM.writeln(root, text, br);
+    /**
+    * ### DOM.sprintf
+    *
+    * Builds up a decorated HTML text element
+    *
+    * Performs string substitution from an args object where the first
+    * character of the key bears the following semantic:
+    *
+    * - '@': variable substitution with escaping
+    * - '!': variable substitution without variable escaping
+    * - '%': wraps a portion of string into a _span_ element to which is
+    *        possible to associate a css class or id. Alternatively,
+    *        it also possible to add in-line style. E.g.:
+    *
+    * ```javascript
+    *      sprintf('%sImportant!%s An error has occurred: %pre@err%pre', {
+    *              '%pre': {
+    *                      style: 'font-size: 12px; font-family: courier;'
+    *              },
+    *              '%s': {
+    *                      id: 'myId',
+    *                      'class': 'myClass',
+    *              },
+    *              '@err': 'file not found',
+    *      }, document.body);
+    * ```
+    *
+    * Special span elements are %strong and %em, which add
+    * respectively a _strong_ and _em_ tag instead of the default
+    * _span_ tag. They cannot be styled.
+    *
+    * @param {string} string A text to transform
+    * @param {object} args Optional. An object containing string
+    *   transformations
+    * @param {Element} root Optional. An HTML element to which append the
+    *    string. Defaults, a new _span_ element
+    *
+    * @return {Element} The root element.
+    */
+    GameWindow.prototype.sprintf = function(string, args, root) {
+        if (!root) root = getDefaultRoot(root, 'sprintf');
+        return DOM.sprintf(string, args, root);
     };
 
     /**
-     * ### GameWindow.generateUniqueId
+     * ### GameWindo.add|append
      *
-     * Generates a unique id
+     * Creates and append an element with specified attributes to a root
      *
-     * Overrides JSUS.DOM.generateUniqueId.
+     * @param {string} name The name of the HTML tag
+     * @param {HTMLElement} root The root element to which the new element
+     *   will be appended
+     * @param {object|string} options Optional. Object containing
+     *   attributes for the element and rules about how to insert it relative
+     *   to root. Available options: insertAfter, insertBefore (default:
+     *   child of root). If string, it is the id of the element. Examples:
      *
-     * @param {string} prefix Optional. The prefix to use
      *
-     * @return {string} The generated id
-     *
-     * @experimental
-     * TODO: it is not always working fine.
+     * @see getDefaultRoot
      */
-    GameWindow.prototype.generateUniqueId = function(prefix) {
-        var id, found;
-
-        id = '' + (prefix || J.randomInt(0, 1000));
-        found = this.getElementById(id);
-
-        while (found) {
-            id = '' + prefix + '_' + J.randomInt(0, 1000);
-            found = this.getElementById(id);
-        }
-        return id;
+    GameWindow.prototype.add =
+    GameWindow.prototype.append = function(el, root, opts) {
+        if (!root) root = getDefaultRoot(root, 'add');
+        return DOM.add(el, root, opts);
     };
 
     /**
-     * ### GameWindow.toggleInputs
+     * ### GameWindow.searchReplace
      *
-     * Enables / disables the input forms
+     * Replaces the innerHTML of the element/s with matching id or class name
      *
-     * If an id is provided, only input elements that are children
-     * of the element with the specified id are toggled.
+     * It iterates through each element and passes it to
+     * `GameWindow.setInnerHTML`.
      *
-     * If id is not given, it toggles the input elements on the whole page,
-     * including the frame document, if found.
+     * If elements is array, each item in the array must be of the type:
      *
-     * If a state parameter is given, all the input forms will be either
-     * disabled or enabled (and not toggled).
+     * ```javascript
      *
-     * @param {string} id Optional. The id of the element container
-     *   of the forms. Default: the whole page, including the frame document
-     * @param {boolean} disabled Optional. Forces all the inputs to be either
-     *   disabled or enabled (not toggled)
+     *   { search: 'key', replace: 'value' }
      *
-     * @return {boolean} FALSE, if the method could not be executed
+     *   // or
      *
-     * @see GameWindow.getFrameDocument
-     * @see toggleInputs
+     *   { search: 'key', replace: 'value', mod: 'id' }
+     * ```
+     *
+     * If elements is object, it must be of the type:
+     *
+     * ```javascript
+     *
+     *    {
+     *      search1: value1, search2: value 2 // etc.
+     *    }
+     * ```
+     *
+     * It accepts a variable number of input parameters. The first is always
+     * _elements_. If there are 2 input parameters, the second is _prefix_,
+     * while if there are 3 input parameters, the second is _mod_ and the third
+     * is _prefix_.
+     *
+     * @param {object|array} Elements to search and replace
+     * @param {string} mod Optional. Modifier passed to GameWindow.setInnerHTML
+     * @param {string} prefix Optional. Prefix added to the search string.
+     *    Default: 'ng_replace_', null or '' equals no prefix.
+     *
+     * @see GameWindow.setInnerHTML
      */
-    GameWindow.prototype.toggleInputs = function(id, disabled) {
-        var container;
-        if (!document.getElementsByTagName) {
-            node.err(
-                'GameWindow.toggleInputs: getElementsByTagName not found');
-            return false;
+    GameWindow.prototype.searchReplace = function() {
+        var elements, mod, prefix;
+        var name, len, i, el, rep;
+
+        if (arguments.length === 2) {
+            mod = 'g';
+            prefix = arguments[1];
         }
-        if (id && 'string' === typeof id) {
-            throw new Error('GameWindow.toggleInputs: id must be string or ' +
-                            'undefined. Found: ' + id);
+        else if (arguments.length > 2) {
+            mod = arguments[1];
+            prefix = arguments[2];
         }
-        if (id) {
-            container = this.getElementById(id);
-            if (!container) {
-                throw new Error('GameWindow.toggleInputs: no elements found ' +
-                                'with id ' + id);
+
+        if ('undefined' === typeof prefix) {
+            prefix = 'ng_replace_';
+        }
+        else if (null === prefix) {
+            prefix = '';
+        }
+        else if ('string' !== typeof prefix) {
+            throw new TypeError(G + 'searchReplace: prefix must be string, ' +
+                                'null or undefined. Found: ' + prefix);
+        }
+
+        elements = arguments[0];
+        if (J.isArray(elements)) {
+            i = -1, len = elements.length;
+            for ( ; ++i < len ; ) {
+                el = elements[i].search;
+                if ('string' !== typeof el && 'number' !== typeof el) {
+                    continue;
+                }
+                rep = elements[i].replace;
+                if ('string' !== typeof rep && 'number' !== typeof rep) {
+                    continue;
+                }
+
+                this.setInnerHTML(prefix + el,
+                                  elements[i].replace,
+                                  elements[i].mod || mod);
+            }
+
+        }
+        else if ('object' === typeof elements) {
+            for (name in elements) {
+                if (elements.hasOwnProperty(name)) {
+                    el = elements[name];
+                    if ('string' !== typeof el && 'number' !== typeof el) {
+                        node.warn(G + 'searchReplace: replace for key ' + name +
+                                  ' is invalid. Found: ' + el);
+                        continue;
+                    }
+                    this.setInnerHTML(prefix + name, el, mod);
+                }
             }
-            toggleInputs(disabled, container);
         }
         else {
-            // The whole page.
-            toggleInputs(disabled);
-            container = this.getFrameDocument();
-            // If there is a frame, apply it there too.
-            if (container) toggleInputs(disabled, container);
+            throw new TypeError(G + 'setInnerHTML: elements must be ' +
+                                'object or arrray. Found: ' + elements);
+        }
+
+    };
+
+    /**
+     * ### GameWindow.html|setInnerHTML
+     *
+     * Replaces the innerHTML of the element with matching id or class name
+     *
+     * @param {string|number} search Element id or className
+     * @param {string|number} replace The new value of the property innerHTML
+     * @param {string} mod Optional. A modifier defining how to use the
+     *    search parameter. Values:
+     *
+     *    - 'id': replaces at most one element with the same id (default)
+     *    - 'className': replaces all elements with same class name
+     *    - 'g': replaces globally, both by id and className
+     */
+    GameWindow.prototype.setInnerHTML =
+    GameWindow.prototype.html = function(search, replace, mod) {
+        var el, i, len;
+
+        // Only process strings or numbers.
+        if ('string' !== typeof search && 'number' !== typeof search) {
+            throw new TypeError(G + 'setInnerHTML: search must be ' +
+                                'string or number. Found: ' + search +
+                                " (replace = " + replace + ")");
+        }
+
+        // Only process strings or numbers.
+        if ('string' !== typeof replace && 'number' !== typeof replace) {
+            throw new TypeError(G + 'setInnerHTML: replace must be ' +
+                                'string or number. Found: ' + replace +
+                                " (search = " + search + ")");
+        }
+
+        if ('undefined' === typeof mod) {
+            mod = 'id';
+        }
+        else if ('string' === typeof mod) {
+            if (mod !== 'g' && mod !== 'id' && mod !== 'className') {
+                throw new Error(G + 'setInnerHTML: invalid ' +
+                                'mod value: ' + mod  +
+                                " (search = " + search + ")");
+            }
+        }
+        else {
+            throw new TypeError(G + 'setInnerHTML: mod must be ' +
+                                'string or undefined. Found: ' + mod  +
+                                " (search = " + search + ")");
+        }
+
+        if (mod === 'id' || mod === 'g') {
+            // Look by id.
+            el = W.getElementById(search);
+            if (el && el.className !== search) el.innerHTML = replace;
+        }
+
+        if (mod === 'className' || mod === 'g') {
+            // Look by class name.
+            el = W.getElementsByClassName(search);
+            len = el.length;
+            if (len) {
+                i = -1;
+                for ( ; ++i < len ; ) {
+                    el[i].innerHTML = replace;
+                }
+            }
         }
-        return true;
     };
 
+    // ### ADD STUFF: Event button, loading dots.
+
     /**
      * ### GameWindow.getLoadingDots
      *
@@ -215,7 +368,7 @@
      *
      * @param {number} len Optional. The maximum length of the loading dots.
      *   Default: 5
-     * @param {string} id Optional The id of the span
+     * @param {string} id Optional. The id of the span
      *
      * @return {object} An object containing two properties: the span element
      *   and a method stop, that clears the interval
@@ -223,8 +376,8 @@
     GameWindow.prototype.getLoadingDots = function(len, id) {
         var spanDots, counter, intervalId;
         if (len & len < 0) {
-            throw new Error('GameWindow.getLoadingDots: len cannot be < 0. ' +
-                            'Found: ' + len);
+            throw new Error(G + 'getLoadingDots: len cannot be < 0. Found: ' +
+                            len);
         }
         spanDots = document.createElement('span');
         spanDots.id = id || 'span_dots';
@@ -297,7 +450,7 @@
     GameWindow.prototype.getEventButton = function(event, attributes) {
         var b;
         if ('string' !== typeof event) {
-            throw new TypeError('GameWindow.getEventButton: event must ' +
+            throw new TypeError(G + 'getEventButton: event must ' +
                                 'be string. Found: ' + event);
         }
         if ('string' === typeof attributes) {
@@ -335,163 +488,58 @@
         return root.appendChild(eb);
     };
 
+    // ### SHOWING, HIDING, TOGGLING.
+
     /**
-     * ### GameWindow.searchReplace
-     *
-     * Replaces the innerHTML of the element/s with matching id or class name
-     *
-     * It iterates through each element and passes it to
-     * `GameWindow.setInnerHTML`.
-     *
-     * If elements is array, each item in the array must be of the type:
-     *
-     * ```javascript
-     *
-     *   { search: 'key', replace: 'value' }
-     *
-     *   // or
-     *
-     *   { search: 'key', replace: 'value', mod: 'id' }
-     * ```
-     *
-     * If elements is object, it must be of the type:
-     *
-     * ```javascript
+     * ### GameWindow.toggleInputs
      *
-     *    {
-     *      search1: value1, search2: value 2 // etc.
-     *    }
-     * ```
+     * Enables / disables the input forms
      *
-     * It accepts a variable number of input parameters. The first is always
-     * _elements_. If there are 2 input parameters, the second is _prefix_,
-     * while if there are 3 input parameters, the second is _mod_ and the third
-     * is _prefix_.
+     * If an id is provided, only input elements that are children
+     * of the element with the specified id are toggled.
      *
-     * @param {object|array} Elements to search and replace
-     * @param {string} mod Optional. Modifier passed to GameWindow.setInnerHTML
-     * @param {string} prefix Optional. Prefix added to the search string.
-     *    Default: 'ng_replace_', null or '' equals no prefix.
+     * If id is not given, it toggles the input elements on the whole page,
+     * including the frame document, if found.
      *
-     * @see GameWindow.setInnerHTML
-     */
-    GameWindow.prototype.searchReplace = function() {
-        var elements, mod, prefix;
-        var name, len, i;
-
-        if (arguments.length === 2) {
-            mod = 'g';
-            prefix = arguments[1];
-        }
-        else if (arguments.length > 2) {
-            mod = arguments[1];
-            prefix = arguments[2];
-        }
-
-        if ('undefined' === typeof prefix) {
-            prefix = 'ng_replace_';
-        }
-        else if (null === prefix) {
-            prefix = '';
-        }
-        else if ('string' !== typeof prefix) {
-            throw new TypeError('GameWindow.searchReplace: prefix ' +
-                                'must be string, null or undefined. Found: ' +
-                                prefix);
-        }
-
-        elements = arguments[0];
-        if (J.isArray(elements)) {
-            i = -1, len = elements.length;
-            for ( ; ++i < len ; ) {
-                this.setInnerHTML(prefix + elements[i].search,
-                                  elements[i].replace,
-                                  elements[i].mod || mod);
-            }
-
-        }
-        else if ('object' !== typeof elements) {
-            for (name in elements) {
-                if (elements.hasOwnProperty(name)) {
-                    this.setInnerHTML(prefix + name, elements[name], mod);
-                }
-            }
-        }
-        else {
-            throw new TypeError('GameWindow.setInnerHTML: elements must be ' +
-                                'object or arrray. Found: ' + elements);
-        }
-
-    };
-
-    GameWindow.prototype.setInnerHTML = function(search, replace, mod) {
-        this.html(search, replace, mod);
-    };
-
-    /**
-     * ### GameWindow.html
+     * If a state parameter is given, all the input forms will be either
+     * disabled or enabled (and not toggled).
      *
-     * Replaces the innerHTML of the element with matching id or class name
+     * @param {string} id Optional. The id of the element container
+     *   of the forms. Default: the whole page, including the frame document
+     * @param {boolean} disabled Optional. Forces all the inputs to be either
+     *   disabled or enabled (not toggled)
      *
-     * @param {string|number} search Element id or className
-     * @param {string|number} replace The new value of the property innerHTML
-     * @param {string} mod Optional. A modifier defining how to use the
-     *    search parameter. Values:
+     * @return {boolean} FALSE, if the method could not be executed
      *
-     *    - 'id': replaces at most one element with the same id (default)
-     *    - 'className': replaces all elements with same class name
-     *    - 'g': replaces globally, both by id and className
+     * @see GameWindow.getFrameDocument
+     * @see toggleInputs
      */
-    GameWindow.prototype.html = function(search, replace, mod) {
-        var el, i, len;
-
-        // Only process strings or numbers.
-        if ('string' !== typeof search && 'number' !== typeof search) {
-            throw new TypeError('GameWindow.setInnerHTML: search must be ' +
-                                'string or number. Found: ' + search +
-                                " (replace = " + replace + ")");
-        }
-
-        // Only process strings or numbers.
-        if ('string' !== typeof replace && 'number' !== typeof replace) {
-            throw new TypeError('GameWindow.setInnerHTML: replace must be ' +
-                                'string or number. Found: ' + replace +
-                                " (search = " + search + ")");
+    GameWindow.prototype.toggleInputs = function(id, disabled) {
+        var container;
+        if (!document.getElementsByTagName) {
+            node.err(G + 'toggleInputs: getElementsByTagName not found');
+            return false;
         }
-
-        if ('undefined' === typeof mod) {
-            mod = 'id';
+        if (id && 'string' === typeof id) {
+            throw new Error(G + 'toggleInputs: id must be string or ' +
+                            'undefined. Found: ' + id);
         }
-        else if ('string' === typeof mod) {
-            if (mod !== 'g' && mod !== 'id' && mod !== 'className') {
-                throw new Error('GameWindow.setInnerHTML: invalid ' +
-                                'mod value: ' + mod  +
-                                " (search = " + search + ")");
+        if (id) {
+            container = this.gid(id);
+            if (!container) {
+                throw new Error(G + 'toggleInputs: no elements found with id ' +
+                                id);
             }
+            toggleInputs(disabled, container);
         }
         else {
-            throw new TypeError('GameWindow.setInnerHTML: mod must be ' +
-                                'string or undefined. Found: ' + mod  +
-                                " (search = " + search + ")");
-        }
-
-        if (mod === 'id' || mod === 'g') {
-            // Look by id.
-            el = W.getElementById(search);
-            if (el && el.className !== search) el.innerHTML = replace;
-        }
-
-        if (mod === 'className' || mod === 'g') {
-            // Look by class name.
-            el = W.getElementsByClassName(search);
-            len = el.length;
-            if (len) {
-                i = -1;
-                for ( ; ++i < len ; ) {
-                    el[i].innerHTML = replace;
-                }
-            }
+            // The whole page.
+            toggleInputs(disabled);
+            container = this.getFrameDocument();
+            // If there is a frame, apply it there too.
+            if (container) toggleInputs(disabled, container);
         }
+        return true;
     };
 
     /**
@@ -510,7 +558,7 @@
      */
     GameWindow.prototype.hide = function(idOrObj) {
         var el;
-        el = getElement(idOrObj, 'GameWindow.hide');
+        el = getElement(idOrObj, 'hide');
         if (el) {
             el.style.display = 'none';
             W.adjustFrameHeight(0, 0);
@@ -538,10 +586,10 @@
         var el;
         display = display || '';
         if ('string' !== typeof display) {
-            throw new TypeError('GameWindow.show: display must be ' +
+            throw new TypeError(G + 'show: display must be ' +
                                 'string or undefined. Found: ' + display);
         }
-        el = getElement(idOrObj, 'GameWindow.show');
+        el = getElement(idOrObj, 'show');
         if (el) {
             el.style.display = display;
             W.adjustFrameHeight(0, 0);
@@ -569,10 +617,10 @@
         var el;
         display = display || '';
         if ('string' !== typeof display) {
-            throw new TypeError('GameWindow.toggle: display must ' +
+            throw new TypeError(G + 'toggle: display must ' +
                                 'be string or undefined. Found: ' + display);
         }
-        el = getElement(idOrObj, 'GameWindow.toggle');
+        el = getElement(idOrObj, 'toggle');
         if (el) {
             if (el.style.display === 'none') el.style.display = display;
             else el.style.display = 'none';
@@ -581,11 +629,145 @@
         return el;
     };
 
+   /**
+     * ## GameWindow.shake
+     *
+     * Shakes an element briefly and adds the invalid class
+     * 
+     * Adds a listener to remove the invalid class on change.
+     *
+     * @param {string|HTMLElement} idOrObj The id of or the HTML element itself
+     *
+     * @return {HTMLElement} The shaken element, if found
+     *
+     */
+   GameWindow.prototype.shake = function(idOrObj) {
+        var el, listener;
+        el = getElement(idOrObj);
+        if (el) {
+            el.classList.add('is-invalid');
+            el.classList.add('shake'); // Add shake class
+            setTimeout(function() {
+                el.classList.remove('shake'); 
+            }, 500); // Match animation duration
+            
+            // Add an event listener that removes the invalid class if
+            // the element is interacted with.
+            listener = function() {
+                el.classList.remove('is-invalid');
+                el.removeEventListener('change', listener);
+            };
+
+            el.addEventListener('change', listener);
+        }
+        return el;
+    };
+
+    /**
+     * ## GameWindow.fadeIn
+     *
+     * Fades in an element
+     *
+     * @param {string|HTMLElement} idOrObj The id of or the HTML element itself
+     * @param {object} opts Configuration options
+     *
+     * @return {HTMLElement|null} The faded-in element if found, null otherwise
+     *
+     * @see _fade
+     */
+    GameWindow.prototype.fadeIn = function(idOrObj, opts) {
+        return _fade(false, idOrObj, opts);
+    };
+
+    /**
+     * ## GameWindow.fadeOut
+     *
+     * Fades out an element
+     *
+     * @param {string|HTMLElement} idOrObj The id of or the HTML element itself
+     * @param {object} opts Configuration options
+     *
+     * @return {HTMLElement|null} The faded-out element if found, null otherwise
+     *
+     * @see _fade
+     */
+    GameWindow.prototype.fadeOut = function(idOrObj, opts) {
+        return _fade(true, idOrObj, opts);
+    };
+
+
+    /**
+     * ### GameWindow.isRTL
+     *
+     * Returns TRUE is the page is written right to left
+     * 
+     * Results are cached.
+     * 
+     * @param {boolean} force If truthy, it resets the cache;
+     *     if HTMLElement, it checks within that element.
+     * 
+     * @returns {boolean} TRUE if the page is RTL
+     */
+    GameWindow.prototype.isRTL = GameWindow.prototype.isRtl = (function(cache) {
+        return function(force) {
+            var d;
+            if ('undefined' === typeof cache || force) {
+                d = J.isElement(force) ? force : document.documentElement;
+                cache = d.dir === 'rtl' || 
+                ('function' === typeof getComputedStyle && 
+                    getComputedStyle(d).direction === 'rtl');
+            }
+            return cache;
+        };
+    })();
+    
+
+
     // ## Helper Functions
 
+    /**
+     * Fades an element in or out and adjust the frame height
+     * 
+     * @param {boolean} out True if it is a fadeOut event, False otherwise
+     * @param {string|HTMLElement} idOrObj The id of or the HTML element itself
+     * @param {object} opts Configuration options:
+     *      - `display`: The display property for the faded element
+     *      - `adjustFrameHeight`: If not FALSE, W.adjustFrameHeight is called
+     * 
+     * @return {HTMLElement|null} The faded* element if found, null otherwise
+     */
+    function _fade(out, idOrObj, opts) {
+        var el, classRem, classAdd, defDisplay;
+        el = getElement(idOrObj);
+        if (!el) return null;
+        if (out) {
+            classRem = 'fadein';
+            classAdd = 'fadeout';
+            defDisplay = 'none';
+        }
+        else {
+            classRem = 'fadeout';
+            classAdd = 'fadein';
+            defDisplay = '';
+        }
+        opts = opts || {};
+        el.classList.remove(classRem);
+        el.classList.add(classAdd);
+        el.style.display = opts.display || defDisplay;
+        if (opts.adjustFrameHeight !== false) W.adjustFrameHeight();
+        return el;
+    }
+
     /**
      * ### toggleInputs
      *
+     * Enable/disable inputs: 'button', 'select', 'textarea', 'input'
+     *
+     * @param {boolean} state Optional. True/false to enable/disable, undefined
+     *   to toggle.
+     * @param {HTMLElement} container Optional. The element inside which
+     *   toggling takes place. Default: `document`.
+     *
      * @api private
      */
     function toggleInputs(state, container) {
@@ -616,26 +798,48 @@
      *
      * Gets the element or returns it
      *
-     * @param {string|HTMLElement} The id or the HTML element itself
+     * @param {string|HTMLElement} idOrObj The id or the HTML element itself
+     * @param {string|undefined} throwAs Optional. The name of the calling
+     *   method used in the string of the error, or undefined to avoid
+     *   throwing altogether.
      *
-     * @return {HTMLElement} The HTML Element
+     * @return {HTMLElement|undefined} The HTML Element or undefined if none
+     *   is found and throwAs is falsy
      *
-     * @see GameWindow.getElementById
+     * @see GameWindow.gid
      * @api private
      */
-    function getElement(idOrObj, prefix) {
-        var el;
-        if ('string' === typeof idOrObj) {
-            el = W.getElementById(idOrObj);
+    function getElement(idOrObj, throwAs) {
+        if ('string' === typeof idOrObj) return W.gid(idOrObj);
+        if (J.isElement(idOrObj)) return idOrObj;
+        if (throwAs) {
+            throw new TypeError(G + throwAs + ': idOrObj must be string or ' +
+                               'HTML Element. Found: ' + idOrObj);
         }
-        else if (J.isElement(idOrObj)) {
-            el = idOrObj;
-        }
-        else {
-            throw new TypeError(prefix + ': idOrObj must be string ' +
-                                ' or HTML Element. Found: ' + idOrObj);
-        }
-        return el;
+    }
+
+    /**
+     * ### getDefaultRoot
+     *
+     * Tries to find a default root and returns it
+     *
+     * @param {string|HTMLElement} root Optional. The id of or the HTML
+     *   element itself to be used as root.
+     * @param {string|undefined} throwAs Optional. The name of the calling
+     *   method used in the string of the error, or undefined to avoid
+     *   throwing altogether.
+     *
+     * @return {HTMLElement|undefined} The root HTML Element, or undefined
+     *   if none is found and `throwAs` is falsy
+     *
+     * @see GameWindow.gid
+     * @api private
+     */
+    function getDefaultRoot(root, throwAs) {
+        if (!root) root = W.getScreen();
+        else root = getElement(root);
+        if (root) return root;
+        if (throwAs) throw new Error(G + throwAs + ': could not find root');
     }
 
 })(
diff --git a/package.json b/package.json
index a557c1a..0739a78 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "nodegame-window",
   "description": "Provides a handy API to interface nodeGame with the browser window.",
-  "version": "7.0.0",
+  "version": "8.0.0",
   "keywords": [ "nodegame", "window", "browser", "frame", "behavioral", "multiplayer", "games", "ui" ],
   "author": "Stefano Balietti <futur.dorko@gmail.com>",
   "license": "MIT",