comt: comparison src/cm/media/js/lib/yui/yui3-3.15.0/build/yui-base/yui-base-debug.js

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src/cm/media/js/lib/yui/yui3-3.15.0/build/yui-base/yui-base-debug.js

changeset 602

e16a97fb364a

equal deleted inserted replaced

-:d334a616c023
+:e16a97fb364a
+/**
+The YUI module contains the components required for building the YUI seed file.
+This includes the script loading mechanism, a simple queue, and the core
+utilities for the library.
+@module yui
+@main yui
+@submodule yui-base
+**/
+/*jshint eqeqeq: false*/
+if (typeof YUI != 'undefined') {
+YUI._YUI = YUI;
+}
+/**
+The YUI global namespace object. This is the constructor for all YUI instances.
+This is a self-instantiable factory function, meaning you don't need to precede
+it with the `new` operator. You can invoke it directly like this:
+YUI().use('*', function (Y) {
+// Y is a new YUI instance.
+});
+But it also works like this:
+var Y = YUI();
+The `YUI` constructor accepts an optional config object, like this:
+YUI({
+debug: true,
+combine: false
+}).use('node', function (Y) {
+// Y.Node is ready to use.
+});
+See the API docs for the <a href="config.html">Config</a> class for the complete
+list of supported configuration properties accepted by the YUI constuctor.
+If a global `YUI` object is already defined, the existing YUI object will not be
+overwritten, to ensure that defined namespaces are preserved.
+Each YUI instance has full custom event support, but only if the event system is
+available.
+@class YUI
+@uses EventTarget
+@constructor
+@global
+@param {Object} [config]* Zero or more optional configuration objects. Config
+values are stored in the `Y.config` property. See the
+<a href="config.html">Config</a> docs for the list of supported properties.
+**/
+/*global YUI*/
+/*global YUI_config*/
+var YUI = function() {
+var i = 0,
+Y = this,
+args = arguments,
+l = args.length,
+instanceOf = function(o, type) {
+return (o && o.hasOwnProperty && (o instanceof type));
+},
+gconf = (typeof YUI_config !== 'undefined') && YUI_config;
+if (!(instanceOf(Y, YUI))) {
+Y = new YUI();
+} else {
+// set up the core environment
+Y._init();
+/**
+Master configuration that might span multiple contexts in a non-
+browser environment. It is applied first to all instances in all
+contexts.
+@example
+YUI.GlobalConfig = {
+filter: 'debug'
+};
+YUI().use('node', function (Y) {
+// debug files used here
+});
+YUI({
+filter: 'min'
+}).use('node', function (Y) {
+// min files used here
+});
+@property {Object} GlobalConfig
+@global
+@static
+**/
+if (YUI.GlobalConfig) {
+Y.applyConfig(YUI.GlobalConfig);
+}
+/**
+Page-level config applied to all YUI instances created on the
+current page. This is applied after `YUI.GlobalConfig` and before
+any instance-level configuration.
+@example
+// Single global var to include before YUI seed file
+YUI_config = {
+filter: 'debug'
+};
+YUI().use('node', function (Y) {
+// debug files used here
+});
+YUI({
+filter: 'min'
+}).use('node', function (Y) {
+// min files used here
+});
+@property {Object} YUI_config
+@global
+**/
+if (gconf) {
+Y.applyConfig(gconf);
+}
+// bind the specified additional modules for this instance
+if (!l) {
+Y._setup();
+}
+}
+if (l) {
+// Each instance can accept one or more configuration objects.
+// These are applied after YUI.GlobalConfig and YUI_Config,
+// overriding values set in those config files if there is a
+// matching property.
+for (; i < l; i++) {
+Y.applyConfig(args[i]);
+}
+Y._setup();
+}
+Y.instanceOf = instanceOf;
+return Y;
+};
+(function() {
+var proto, prop,
+VERSION = '@VERSION@',
+PERIOD = '.',
+BASE = 'http://yui.yahooapis.com/',
+/*
+These CSS class names can't be generated by
+getClassName since it is not available at the
+time they are being used.
+*/
+DOC_LABEL = 'yui3-js-enabled',
+CSS_STAMP_EL = 'yui3-css-stamp',
+NOOP = function() {},
+SLICE = Array.prototype.slice,
+APPLY_TO_AUTH = { 'io.xdrReady': 1,   // the functions applyTo
+'io.xdrResponse': 1,   // can call. this should
+'SWF.eventHandler': 1 }, // be done at build time
+hasWin = (typeof window != 'undefined'),
+win = (hasWin) ? window : null,
+doc = (hasWin) ? win.document : null,
+docEl = doc && doc.documentElement,
+docClass = docEl && docEl.className,
+instances = {},
+time = new Date().getTime(),
+add = function(el, type, fn, capture) {
+if (el && el.addEventListener) {
+el.addEventListener(type, fn, capture);
+} else if (el && el.attachEvent) {
+el.attachEvent('on' + type, fn);
+}
+},
+remove = function(el, type, fn, capture) {
+if (el && el.removeEventListener) {
+// this can throw an uncaught exception in FF
+try {
+el.removeEventListener(type, fn, capture);
+} catch (ex) {}
+} else if (el && el.detachEvent) {
+el.detachEvent('on' + type, fn);
+}
+},
+handleReady = function() {
+YUI.Env.DOMReady = true;
+if (hasWin) {
+remove(doc, 'DOMContentLoaded', handleReady);
+}
+},
+handleLoad = function() {
+YUI.Env.windowLoaded = true;
+YUI.Env.DOMReady = true;
+if (hasWin) {
+remove(window, 'load', handleLoad);
+}
+},
+getLoader = function(Y, o) {
+var loader = Y.Env._loader,
+lCore = [ 'loader-base' ],
+G_ENV = YUI.Env,
+mods = G_ENV.mods;
+if (loader) {
+//loader._config(Y.config);
+loader.ignoreRegistered = false;
+loader.onEnd = null;
+loader.data = null;
+loader.required = [];
+loader.loadType = null;
+} else {
+loader = new Y.Loader(Y.config);
+Y.Env._loader = loader;
+}
+if (mods && mods.loader) {
+lCore = [].concat(lCore, YUI.Env.loaderExtras);
+}
+YUI.Env.core = Y.Array.dedupe([].concat(YUI.Env.core, lCore));
+return loader;
+},
+clobber = function(r, s) {
+for (var i in s) {
+if (s.hasOwnProperty(i)) {
+r[i] = s[i];
+}
+}
+},
+ALREADY_DONE = { success: true };
+//  Stamp the documentElement (HTML) with a class of "yui-loaded" to
+//  enable styles that need to key off of JS being enabled.
+if (docEl && docClass.indexOf(DOC_LABEL) == -1) {
+if (docClass) {
+docClass += ' ';
+}
+docClass += DOC_LABEL;
+docEl.className = docClass;
+}
+if (VERSION.indexOf('@') > -1) {
+VERSION = '3.5.0'; // dev time hack for cdn test
+}
+proto = {
+/**
+Applies a new configuration object to the config of this YUI instance. This
+will merge new group/module definitions, and will also update the loader
+cache if necessary. Updating `Y.config` directly will not update the cache.
+@method applyConfig
+@param {Object} o the configuration object.
+@since 3.2.0
+**/
+applyConfig: function(o) {
+o = o || NOOP;
+var attr,
+name,
+// detail,
+config = this.config,
+mods = config.modules,
+groups = config.groups,
+aliases = config.aliases,
+loader = this.Env._loader;
+for (name in o) {
+if (o.hasOwnProperty(name)) {
+attr = o[name];
+if (mods && name == 'modules') {
+clobber(mods, attr);
+} else if (aliases && name == 'aliases') {
+clobber(aliases, attr);
+} else if (groups && name == 'groups') {
+clobber(groups, attr);
+} else if (name == 'win') {
+config[name] = (attr && attr.contentWindow) || attr;
+config.doc = config[name] ? config[name].document : null;
+} else if (name == '_yuid') {
+// preserve the guid
+} else {
+config[name] = attr;
+}
+}
+}
+if (loader) {
+loader._config(o);
+}
+},
+/**
+Old way to apply a config to this instance (calls `applyConfig` under the
+hood).
+@private
+@method _config
+@param {Object} o The config to apply
+**/
+_config: function(o) {
+this.applyConfig(o);
+},
+/**
+Initializes this YUI instance.
+@private
+@method _init
+**/
+_init: function() {
+var filter, el,
+Y = this,
+G_ENV = YUI.Env,
+Env = Y.Env,
+prop;
+/**
+The version number of this YUI instance.
+This value is typically updated by a script when a YUI release is built,
+so it may not reflect the correct version number when YUI is run from
+the development source tree.
+@property {String} version
+**/
+Y.version = VERSION;
+if (!Env) {
+Y.Env = {
+core: ['get', 'features', 'intl-base', 'yui-log', 'yui-later'],
+loaderExtras: ['loader-rollup', 'loader-yui3'],
+mods: {}, // flat module map
+versions: {}, // version module map
+base: BASE,
+cdn: BASE + VERSION + '/build/',
+// bootstrapped: false,
+_idx: 0,
+_used: {},
+_attached: {},
+_exported: {},
+_missed: [],
+_yidx: 0,
+_uidx: 0,
+_guidp: 'y',
+_loaded: {},
+// serviced: {},
+// Regex in English:
+// I'll start at the \b(yui).
+// 1. Look in the test string for "yui" or
+//    "yui-base" or "yui-davglass" or "yui-foobar" that comes after a word break.  That is, it
+//    can't match "foyui" or "i_heart_yui". This can be anywhere in the string.
+// 2. After #1 must come a forward slash followed by the string matched in #1, so
+//    "yui-base/yui-base" or "yui-pants/yui-pants".
+// 3. The second occurence of the #1 token can optionally be followed by "-debug" or "-min",
+//    so "yui/yui-min", "yui/yui-debug", "yui-base/yui-base-debug". NOT "yui/yui-tshirt".
+// 4. This is followed by ".js", so "yui/yui.js".
+// 0. Going back to the beginning, now. If all that stuff in 1-4 comes after a "?" in the string,
+//    then capture the junk between the LAST "&" and the string in 1-4.  So
+//    "blah?foo/yui/yui.js" will capture "foo/" and "blah?some/thing.js&3.3.0/build/yui-davglass/yui-davglass.js"
+//    will capture "3.3.0/build/"
+//
+// Regex Exploded:
+// (?:\?             Find a ?
+//   (?:[^&]*&)      followed by 0..n characters followed by an &
+//   *               in fact, find as many sets of characters followed by a & as you can
+//   ([^&]*)         capture the stuff after the last & in \1
+// )?                but it's ok if all this ?junk&more_junk stuff isn't even there
+// \b(               after a word break find either the string
+//    yui(?:-\w+)?   "yui" optionally followed by a -, then more characters
+// )                 and store the yui-* string in \2
+// \/\2              then comes a / followed by the yui-* string in \2
+// (?:-(min|debug))? optionally followed by "-min" or "-debug"
+// .js               and ending in ".js"
+_BASE_RE: /(?:\?(?:[^&]*&)*([^&]*))?\b(yui(?:-\w+)?)\/\2(?:-(min|debug))?\.js/,
+parseBasePath: function(src, pattern) {
+var match = src.match(pattern),
+path, filter;
+if (match) {
+path = RegExp.leftContext || src.slice(0, src.indexOf(match[0]));
+// this is to set up the path to the loader.  The file
+// filter for loader should match the yui include.
+filter = match[3];
+// extract correct path for mixed combo urls
+// http://yuilibrary.com/projects/yui3/ticket/2528423
+if (match[1]) {
+path += '?' + match[1];
+}
+path = {
+filter: filter,
+path: path
+};
+}
+return path;
+},
+getBase: G_ENV && G_ENV.getBase ||
+function(pattern) {
+var nodes = (doc && doc.getElementsByTagName('script')) || [],
+path = Env.cdn, parsed,
+i, len, src;
+for (i = 0, len = nodes.length; i < len; ++i) {
+src = nodes[i].src;
+if (src) {
+parsed = Y.Env.parseBasePath(src, pattern);
+if (parsed) {
+filter = parsed.filter;
+path = parsed.path;
+break;
+}
+}
+}
+// use CDN default
+return path;
+}
+};
+Env = Y.Env;
+Env._loaded[VERSION] = {};
+if (G_ENV && Y !== YUI) {
+Env._yidx = ++G_ENV._yidx;
+Env._guidp = ('yui_' + VERSION + '_' +
+Env._yidx + '_' + time).replace(/[^a-z0-9_]+/g, '_');
+} else if (YUI._YUI) {
+G_ENV = YUI._YUI.Env;
+Env._yidx += G_ENV._yidx;
+Env._uidx += G_ENV._uidx;
+for (prop in G_ENV) {
+if (!(prop in Env)) {
+Env[prop] = G_ENV[prop];
+}
+}
+delete YUI._YUI;
+}
+Y.id = Y.stamp(Y);
+instances[Y.id] = Y;
+}
+Y.constructor = YUI;
+// configuration defaults
+Y.config = Y.config || {
+bootstrap: true,
+cacheUse: true,
+debug: true,
+doc: doc,
+fetchCSS: true,
+throwFail: true,
+useBrowserConsole: true,
+useNativeES5: true,
+win: win,
+global: Function('return this')()
+};
+//Register the CSS stamp element
+if (doc && !doc.getElementById(CSS_STAMP_EL)) {
+el = doc.createElement('div');
+el.innerHTML = '<div id="' + CSS_STAMP_EL + '" style="position: absolute !important; visibility: hidden !important"></div>';
+YUI.Env.cssStampEl = el.firstChild;
+if (doc.body) {
+doc.body.appendChild(YUI.Env.cssStampEl);
+} else {
+docEl.insertBefore(YUI.Env.cssStampEl, docEl.firstChild);
+}
+} else if (doc && doc.getElementById(CSS_STAMP_EL) && !YUI.Env.cssStampEl) {
+YUI.Env.cssStampEl = doc.getElementById(CSS_STAMP_EL);
+}
+Y.config.lang = Y.config.lang || 'en-US';
+Y.config.base = YUI.config.base || Y.Env.getBase(Y.Env._BASE_RE);
+if (!filter || (!('mindebug').indexOf(filter))) {
+filter = 'min';
+}
+filter = (filter) ? '-' + filter : filter;
+Y.config.loaderPath = YUI.config.loaderPath || 'loader/loader' + filter + '.js';
+},
+/**
+Finishes the instance setup. Attaches whatever YUI modules were defined
+at the time that this instance was created.
+@method _setup
+@private
+**/
+_setup: function() {
+var i, Y = this,
+core = [],
+mods = YUI.Env.mods,
+extras = Y.config.core || [].concat(YUI.Env.core); //Clone it..
+for (i = 0; i < extras.length; i++) {
+if (mods[extras[i]]) {
+core.push(extras[i]);
+}
+}
+Y._attach(['yui-base']);
+Y._attach(core);
+if (Y.Loader) {
+getLoader(Y);
+}
+// Y.log(Y.id + ' initialized', 'info', 'yui');
+},
+/**
+Executes the named method on the specified YUI instance if that method is
+whitelisted.
+@method applyTo
+@param {String} id YUI instance id.
+@param {String} method Name of the method to execute. For example:
+'Object.keys'.
+@param {Array} args Arguments to apply to the method.
+@return {Mixed} Return value from the applied method, or `null` if the
+specified instance was not found or the method was not whitelisted.
+**/
+applyTo: function(id, method, args) {
+if (!(method in APPLY_TO_AUTH)) {
+this.log(method + ': applyTo not allowed', 'warn', 'yui');
+return null;
+}
+var instance = instances[id], nest, m, i;
+if (instance) {
+nest = method.split('.');
+m = instance;
+for (i = 0; i < nest.length; i = i + 1) {
+m = m[nest[i]];
+if (!m) {
+this.log('applyTo not found: ' + method, 'warn', 'yui');
+}
+}
+return m && m.apply(instance, args);
+}
+return null;
+},
+/**
+Registers a YUI module and makes it available for use in a `YUI().use()` call or
+as a dependency for other modules.
+The easiest way to create a first-class YUI module is to use
+<a href="http://yui.github.com/shifter/">Shifter</a>, the YUI component build
+tool.
+Shifter will automatically wrap your module code in a `YUI.add()` call along
+with any configuration info required for the module.
+@example
+YUI.add('davglass', function (Y) {
+Y.davglass = function () {
+Y.log('Dav was here!');
+};
+}, '3.4.0', {
+requires: ['harley-davidson', 'mt-dew']
+});
+@method add
+@param {String} name Module name.
+@param {Function} fn Function containing module code. This function will be
+executed whenever the module is attached to a specific YUI instance.
+@param {YUI} fn.Y The YUI instance to which this module is attached.
+@param {String} fn.name Name of the module
+@param {String} version Module version number. This is currently used only for
+informational purposes, and is not used internally by YUI.
+@param {Object} [config] Module config.
+@param {Array} [config.requires] Array of other module names that must be
+attached before this module can be attached.
+@param {Array} [config.optional] Array of optional module names that should
+be attached before this module is attached if they've already been
+loaded. If the `loadOptional` YUI option is `true`, optional modules
+that have not yet been loaded will be loaded just as if they were hard
+requirements.
+@param {Array} [config.use] Array of module names that are included within
+or otherwise provided by this module, and which should be attached
+automatically when this module is attached. This makes it possible to
+create "virtual rollup" modules that simply attach a collection of other
+modules or submodules.
+@return {YUI} This YUI instance.
+**/
+add: function(name, fn, version, details) {
+details = details || {};
+var env = YUI.Env,
+mod = {
+name: name,
+fn: fn,
+version: version,
+details: details
+},
+//Instance hash so we don't apply it to the same instance twice
+applied = {},
+loader, inst,
+i, versions = env.versions;
+env.mods[name] = mod;
+versions[version] = versions[version] || {};
+versions[version][name] = mod;
+for (i in instances) {
+if (instances.hasOwnProperty(i)) {
+inst = instances[i];
+if (!applied[inst.id]) {
+applied[inst.id] = true;
+loader = inst.Env._loader;
+if (loader) {
+if (!loader.moduleInfo[name] || loader.moduleInfo[name].temp) {
+loader.addModule(details, name);
+}
+}
+}
+}
+}
+return this;
+},
+/**
+Executes the callback function associated with each required module,
+attaching the module to this YUI instance.
+@method _attach
+@param {Array} r The array of modules to attach
+@param {Boolean} [moot=false] If `true`, don't throw a warning if the module
+is not attached.
+@private
+**/
+_attach: function(r, moot) {
+var i, name, mod, details, req, use, after,
+mods = YUI.Env.mods,
+aliases = YUI.Env.aliases,
+Y = this, j,
+cache = YUI.Env._renderedMods,
+loader = Y.Env._loader,
+done = Y.Env._attached,
+exported = Y.Env._exported,
+len = r.length, loader, def, go,
+c = [],
+modArgs, esCompat, reqlen,
+condition,
+__exports__, __imports__;
+//Check for conditional modules (in a second+ instance) and add their requirements
+//TODO I hate this entire method, it needs to be fixed ASAP (3.5.0) ^davglass
+for (i = 0; i < len; i++) {
+name = r[i];
+mod = mods[name];
+c.push(name);
+if (loader && loader.conditions[name]) {
+for (j in loader.conditions[name]) {
+if (loader.conditions[name].hasOwnProperty(j)) {
+def = loader.conditions[name][j];
+go = def && ((def.ua && Y.UA[def.ua]) || (def.test && def.test(Y)));
+if (go) {
+c.push(def.name);
+}
+}
+}
+}
+}
+r = c;
+len = r.length;
+for (i = 0; i < len; i++) {
+if (!done[r[i]]) {
+name = r[i];
+mod = mods[name];
+if (aliases && aliases[name] && !mod) {
+Y._attach(aliases[name]);
+continue;
+}
+if (!mod) {
+if (loader && loader.moduleInfo[name]) {
+mod = loader.moduleInfo[name];
+moot = true;
+}
+// Y.log('no js def for: ' + name, 'info', 'yui');
+//if (!loader || !loader.moduleInfo[name]) {
+//if ((!loader || !loader.moduleInfo[name]) && !moot) {
+if (!moot && name) {
+if ((name.indexOf('skin-') === -1) && (name.indexOf('css') === -1)) {
+Y.Env._missed.push(name);
+Y.Env._missed = Y.Array.dedupe(Y.Env._missed);
+Y.message('NOT loaded: ' + name, 'warn', 'yui');
+}
+}
+} else {
+done[name] = true;
+//Don't like this, but in case a mod was asked for once, then we fetch it
+//We need to remove it from the missed list ^davglass
+for (j = 0; j < Y.Env._missed.length; j++) {
+if (Y.Env._missed[j] === name) {
+Y.message('Found: ' + name + ' (was reported as missing earlier)', 'warn', 'yui');
+Y.Env._missed.splice(j, 1);
+}
+}
+/*
+If it's a temp module, we need to redo it's requirements if it's already loaded
+since it may have been loaded by another instance and it's dependencies might
+have been redefined inside the fetched file.
+*/
+if (loader && cache && cache[name] && cache[name].temp) {
+loader.getRequires(cache[name]);
+req = [];
+for (j in loader.moduleInfo[name].expanded_map) {
+if (loader.moduleInfo[name].expanded_map.hasOwnProperty(j)) {
+req.push(j);
+}
+}
+Y._attach(req);
+}
+details = mod.details;
+req = details.requires;
+esCompat = details.es;
+use = details.use;
+after = details.after;
+//Force Intl load if there is a language (Loader logic) @todo fix this shit
+if (details.lang) {
+req = req || [];
+req.unshift('intl');
+}
+if (req) {
+reqlen = req.length;
+for (j = 0; j < reqlen; j++) {
+if (!done[req[j]]) {
+if (!Y._attach(req)) {
+return false;
+}
+break;
+}
+}
+}
+if (after) {
+for (j = 0; j < after.length; j++) {
+if (!done[after[j]]) {
+if (!Y._attach(after, true)) {
+return false;
+}
+break;
+}
+}
+}
+if (mod.fn) {
+modArgs = [Y, name];
+if (esCompat) {
+__imports__ = {};
+__exports__ = {};
+// passing `exports` and `imports` onto the module function
+modArgs.push(__imports__, __exports__);
+if (req) {
+reqlen = req.length;
+for (j = 0; j < reqlen; j++) {
+__imports__[req[j]] = exported.hasOwnProperty(req[j]) ? exported[req[j]] : Y;
+}
+}
+}
+if (Y.config.throwFail) {
+__exports__ = mod.fn.apply(esCompat ? undefined : mod, modArgs);
+} else {
+try {
+__exports__ = mod.fn.apply(esCompat ? undefined : mod, modArgs);
+} catch (e) {
+Y.error('Attach error: ' + name, e, name);
+return false;
+}
+}
+if (esCompat) {
+// store the `exports` in case others `es` modules requires it
+exported[name] = __exports__;
+// If an ES module is conditionally loaded and set
+// to be used "instead" another module, replace the
+// trigger module's content with the conditionally
+// loaded one so the values returned by require()
+// still makes sense
+condition = mod.details.condition;
+if (condition && condition.when === 'instead') {
+exported[condition.trigger] = __exports__;
+}
+}
+}
+if (use) {
+for (j = 0; j < use.length; j++) {
+if (!done[use[j]]) {
+if (!Y._attach(use)) {
+return false;
+}
+break;
+}
+}
+}
+}
+}
+}
+return true;
+},
+/**
+Delays the `use` callback until another event has taken place such as
+`window.onload`, `domready`, `contentready`, or `available`.
+@private
+@method _delayCallback
+@param {Function} cb The original `use` callback.
+@param {String|Object} until Either an event name ('load', 'domready', etc.)
+or an object containing event/args keys for contentready/available.
+@return {Function}
+**/
+_delayCallback: function(cb, until) {
+var Y = this,
+mod = ['event-base'];
+until = (Y.Lang.isObject(until) ? until : { event: until });
+if (until.event === 'load') {
+mod.push('event-synthetic');
+}
+Y.log('Delaying use callback until: ' + until.event, 'info', 'yui');
+return function() {
+Y.log('Use callback fired, waiting on delay', 'info', 'yui');
+var args = arguments;
+Y._use(mod, function() {
+Y.log('Delayed use wrapper callback after dependencies', 'info', 'yui');
+Y.on(until.event, function() {
+args[1].delayUntil = until.event;
+Y.log('Delayed use callback done after ' + until.event, 'info', 'yui');
+cb.apply(Y, args);
+}, until.args);
+});
+};
+},
+/**
+Attaches one or more modules to this YUI instance. When this is executed,
+the requirements of the desired modules are analyzed, and one of several
+things can happen:
+* All required modules have already been loaded, and just need to be
+attached to this YUI instance. In this case, the `use()` callback will
+be executed synchronously after the modules are attached.
+* One or more modules have not yet been loaded, or the Get utility is not
+available, or the `bootstrap` config option is `false`. In this case,
+a warning is issued indicating that modules are missing, but all
+available modules will still be attached and the `use()` callback will
+be executed synchronously.
+* One or more modules are missing and the Loader is not available but the
+Get utility is, and `bootstrap` is not `false`. In this case, the Get
+utility will be used to load the Loader, and we will then proceed to
+the following state:
+* One or more modules are missing and the Loader is available. In this
+case, the Loader will be used to resolve the dependency tree for the
+missing modules and load them and their dependencies. When the Loader is
+finished loading modules, the `use()` callback will be executed
+asynchronously.
+@example
+// Loads and attaches dd and its dependencies.
+YUI().use('dd', function (Y) {
+// ...
+});
+// Loads and attaches dd and node as well as all of their dependencies.
+YUI().use(['dd', 'node'], function (Y) {
+// ...
+});
+// Attaches all modules that have already been loaded.
+YUI().use('*', function (Y) {
+// ...
+});
+// Attaches a gallery module.
+YUI().use('gallery-yql', function (Y) {
+// ...
+});
+// Attaches a YUI 2in3 module.
+YUI().use('yui2-datatable', function (Y) {
+// ...
+});
+@method use
+@param {String|Array} modules* One or more module names to attach.
+@param {Function} [callback] Callback function to be executed once all
+specified modules and their dependencies have been attached.
+@param {YUI} callback.Y The YUI instance created for this sandbox.
+@param {Object} callback.status Object containing `success`, `msg` and
+`data` properties.
+@chainable
+**/
+use: function() {
+var args = SLICE.call(arguments, 0),
+callback = args[args.length - 1],
+Y = this,
+i = 0,
+name,
+Env = Y.Env,
+provisioned = true;
+// The last argument supplied to use can be a load complete callback
+if (Y.Lang.isFunction(callback)) {
+args.pop();
+if (Y.config.delayUntil) {
+callback = Y._delayCallback(callback, Y.config.delayUntil);
+}
+} else {
+callback = null;
+}
+if (Y.Lang.isArray(args[0])) {
+args = args[0];
+}
+if (Y.config.cacheUse) {
+while ((name = args[i++])) {
+if (!Env._attached[name]) {
+provisioned = false;
+break;
+}
+}
+if (provisioned) {
+if (args.length) {
+Y.log('already provisioned: ' + args, 'info', 'yui');
+}
+Y._notify(callback, ALREADY_DONE, args);
+return Y;
+}
+}
+if (Y._loading) {
+Y._useQueue = Y._useQueue || new Y.Queue();
+Y._useQueue.add([args, callback]);
+} else {
+Y._use(args, function(Y, response) {
+Y._notify(callback, response, args);
+});
+}
+return Y;
+},
+/**
+Sugar for loading both legacy and ES6-based YUI modules.
+@method require
+@param {String} [modules*] List of module names to import or a single
+module name.
+@param {Function} callback Callback that gets called once all the modules
+were loaded. Each parameter of the callback is the export value of the
+corresponding module in the list. If the module is a legacy YUI module,
+the YUI instance is used instead of the module exports.
+@example
+```
+YUI().require(['es6-set'], function (Y, imports) {
+var Set = imports.Set,
+set = new Set();
+});
+```
+**/
+require: function () {
+var args = SLICE.call(arguments),
+callback;
+if (typeof args[args.length - 1] === 'function') {
+callback = args.pop();
+// only add the callback if one was provided
+// YUI().require('foo'); is valid
+args.push(function (Y) {
+var i, length = args.length,
+exported = Y.Env._exported,
+__imports__ = {};
+// Get only the imports requested as arguments
+for (i = 0; i < length; i++) {
+if (exported.hasOwnProperty(args[i])) {
+__imports__[args[i]] = exported[args[i]];
+}
+}
+// Using `undefined` because:
+// - Using `Y.config.global` would force the value of `this` to be
+//   the global object even in strict mode
+// - Using `Y` goes against the goal of moving away from a shared
+//   object and start thinking in terms of imported and exported
+//   objects
+callback.call(undefined, Y, __imports__);
+});
+}
+// Do not return the Y object. This makes it hard to follow this
+// traditional pattern:
+//   var Y = YUI().use(...);
+// This is a good idea in the light of ES6 modules, to avoid working
+// in the global scope.
+// This also leaves the door open for returning a promise, once the
+// YUI loader is based on the ES6 loader which uses
+// loader.import(...).then(...)
+this.use.apply(this, args);
+},
+/**
+Handles Loader notifications about attachment/load errors.
+@method _notify
+@param {Function} callback Callback to pass to `Y.config.loadErrorFn`.
+@param {Object} response Response returned from Loader.
+@param {Array} args Arguments passed from Loader.
+@private
+**/
+_notify: function(callback, response, args) {
+if (!response.success && this.config.loadErrorFn) {
+this.config.loadErrorFn.call(this, this, callback, response, args);
+} else if (callback) {
+if (this.Env._missed && this.Env._missed.length) {
+response.msg = 'Missing modules: ' + this.Env._missed.join();
+response.success = false;
+}
+if (this.config.throwFail) {
+callback(this, response);
+} else {
+try {
+callback(this, response);
+} catch (e) {
+this.error('use callback error', e, args);
+}
+}
+}
+},
+/**
+Called from the `use` method queue to ensure that only one set of loading
+logic is performed at a time.
+@method _use
+@param {String} args* One or more modules to attach.
+@param {Function} [callback] Function to call once all required modules have
+been attached.
+@private
+**/
+_use: function(args, callback) {
+if (!this.Array) {
+this._attach(['yui-base']);
+}
+var len, loader, handleBoot,
+Y = this,
+G_ENV = YUI.Env,
+mods = G_ENV.mods,
+Env = Y.Env,
+used = Env._used,
+aliases = G_ENV.aliases,
+queue = G_ENV._loaderQueue,
+firstArg = args[0],
+YArray = Y.Array,
+config = Y.config,
+boot = config.bootstrap,
+missing = [],
+i,
+r = [],
+ret = true,
+fetchCSS = config.fetchCSS,
+process = function(names, skip) {
+var i = 0, a = [], name, len, m, req, use;
+if (!names.length) {
+return;
+}
+if (aliases) {
+len = names.length;
+for (i = 0; i < len; i++) {
+if (aliases[names[i]] && !mods[names[i]]) {
+a = [].concat(a, aliases[names[i]]);
+} else {
+a.push(names[i]);
+}
+}
+names = a;
+}
+len = names.length;
+for (i = 0; i < len; i++) {
+name = names[i];
+if (!skip) {
+r.push(name);
+}
+// only attach a module once
+if (used[name]) {
+continue;
+}
+m = mods[name];
+req = null;
+use = null;
+if (m) {
+used[name] = true;
+req = m.details.requires;
+use = m.details.use;
+} else {
+// CSS files don't register themselves, see if it has
+// been loaded
+if (!G_ENV._loaded[VERSION][name]) {
+missing.push(name);
+} else {
+used[name] = true; // probably css
+}
+}
+// make sure requirements are attached
+if (req && req.length) {
+process(req);
+}
+// make sure we grab the submodule dependencies too
+if (use && use.length) {
+process(use, 1);
+}
+}
+},
+handleLoader = function(fromLoader) {
+var response = fromLoader || {
+success: true,
+msg: 'not dynamic'
+},
+redo, origMissing,
+ret = true,
+data = response.data;
+Y._loading = false;
+if (data) {
+origMissing = missing;
+missing = [];
+r = [];
+process(data);
+redo = missing.length;
+if (redo) {
+if ([].concat(missing).sort().join() ==
+origMissing.sort().join()) {
+redo = false;
+}
+}
+}
+if (redo && data) {
+Y._loading = true;
+Y._use(missing, function() {
+Y.log('Nested use callback: ' + data, 'info', 'yui');
+if (Y._attach(data)) {
+Y._notify(callback, response, data);
+}
+});
+} else {
+if (data) {
+// Y.log('attaching from loader: ' + data, 'info', 'yui');
+ret = Y._attach(data);
+}
+if (ret) {
+Y._notify(callback, response, args);
+}
+}
+if (Y._useQueue && Y._useQueue.size() && !Y._loading) {
+Y._use.apply(Y, Y._useQueue.next());
+}
+};
+// Y.log(Y.id + ': use called: ' + a + ' :: ' + callback, 'info', 'yui');
+// YUI().use('*'); // bind everything available
+if (firstArg === '*') {
+args = [];
+for (i in mods) {
+if (mods.hasOwnProperty(i)) {
+args.push(i);
+}
+}
+ret = Y._attach(args);
+if (ret) {
+handleLoader();
+}
+return Y;
+}
+if ((mods.loader || mods['loader-base']) && !Y.Loader) {
+Y.log('Loader was found in meta, but it is not attached. Attaching..', 'info', 'yui');
+Y._attach(['loader' + ((!mods.loader) ? '-base' : '')]);
+}
+// Y.log('before loader requirements: ' + args, 'info', 'yui');
+// use loader to expand dependencies and sort the
+// requirements if it is available.
+if (boot && Y.Loader && args.length) {
+Y.log('Using loader to expand dependencies', 'info', 'yui');
+loader = getLoader(Y);
+loader.require(args);
+loader.ignoreRegistered = true;
+loader._boot = true;
+loader.calculate(null, (fetchCSS) ? null : 'js');
+args = loader.sorted;
+loader._boot = false;
+}
+process(args);
+len = missing.length;
+if (len) {
+missing = YArray.dedupe(missing);
+len = missing.length;
+Y.log('Modules missing: ' + missing + ', ' + missing.length, 'info', 'yui');
+}
+// dynamic load
+if (boot && len && Y.Loader) {
+// Y.log('Using loader to fetch missing deps: ' + missing, 'info', 'yui');
+Y.log('Using Loader', 'info', 'yui');
+Y._loading = true;
+loader = getLoader(Y);
+loader.onEnd = handleLoader;
+loader.context = Y;
+loader.data = args;
+loader.ignoreRegistered = false;
+loader.require(missing);
+loader.insert(null, (fetchCSS) ? null : 'js');
+} else if (boot && len && Y.Get && !Env.bootstrapped) {
+Y._loading = true;
+handleBoot = function() {
+Y._loading = false;
+queue.running = false;
+Env.bootstrapped = true;
+G_ENV._bootstrapping = false;
+if (Y._attach(['loader'])) {
+Y._use(args, callback);
+}
+};
+if (G_ENV._bootstrapping) {
+Y.log('Waiting for loader', 'info', 'yui');
+queue.add(handleBoot);
+} else {
+G_ENV._bootstrapping = true;
+Y.log('Fetching loader: ' + config.base + config.loaderPath, 'info', 'yui');
+Y.Get.script(config.base + config.loaderPath, {
+onEnd: handleBoot
+});
+}
+} else {
+Y.log('Attaching available dependencies: ' + args, 'info', 'yui');
+ret = Y._attach(args);
+if (ret) {
+handleLoader();
+}
+}
+return Y;
+},
+/**
+Utility method for safely creating namespaces if they don't already exist.
+May be called statically on the YUI global object or as a method on a YUI
+instance.
+When called statically, a namespace will be created on the YUI global
+object:
+// Create `YUI.your.namespace.here` as nested objects, preserving any
+// objects that already exist instead of overwriting them.
+YUI.namespace('your.namespace.here');
+When called as a method on a YUI instance, a namespace will be created on
+that instance:
+// Creates `Y.property.package`.
+Y.namespace('property.package');
+Dots in the input string cause `namespace` to create nested objects for each
+token. If any part of the requested namespace already exists, the current
+object will be left in place and will not be overwritten. This allows
+multiple calls to `namespace` to preserve existing namespaced properties.
+If the first token in the namespace string is "YAHOO", that token is
+discarded. This is legacy behavior for backwards compatibility with YUI 2.
+Be careful with namespace tokens. Reserved words may work in some browsers
+and not others. For instance, the following will fail in some browsers
+because the supported version of JavaScript reserves the word "long":
+Y.namespace('really.long.nested.namespace');
+Note: If you pass multiple arguments to create multiple namespaces, only the
+last one created is returned from this function.
+@method namespace
+@param {String} namespace* One or more namespaces to create.
+@return {Object} Reference to the last namespace object created.
+**/
+namespace: function() {
+var a = arguments, o, i = 0, j, d, arg;
+for (; i < a.length; i++) {
+o = this; //Reset base object per argument or it will get reused from the last
+arg = a[i];
+if (arg.indexOf(PERIOD) > -1) { //Skip this if no "." is present
+d = arg.split(PERIOD);
+for (j = (d[0] == 'YAHOO') ? 1 : 0; j < d.length; j++) {
+o[d[j]] = o[d[j]] || {};
+o = o[d[j]];
+}
+} else {
+o[arg] = o[arg] || {};
+o = o[arg]; //Reset base object to the new object so it's returned
+}
+}
+return o;
+},
+// this is replaced if the log module is included
+log: NOOP,
+message: NOOP,
+// this is replaced if the dump module is included
+dump: function (o) { return ''+o; },
+/**
+Reports an error.
+The reporting mechanism is controlled by the `throwFail` configuration
+attribute. If `throwFail` is falsy, the message is logged. If `throwFail` is
+truthy, a JS exception is thrown.
+If an `errorFn` is specified in the config it must return `true` to indicate
+that the exception was handled and keep it from being thrown.
+@method error
+@param {String} msg Error message.
+@param {Error|String} [e] JavaScript error object or an error string.
+@param {String} [src] Source of the error (such as the name of the module in
+which the error occurred).
+@chainable
+**/
+error: function(msg, e, src) {
+//TODO Add check for window.onerror here
+var Y = this, ret;
+if (Y.config.errorFn) {
+ret = Y.config.errorFn.apply(Y, arguments);
+}
+if (!ret) {
+throw (e || new Error(msg));
+} else {
+Y.message(msg, 'error', ''+src); // don't scrub this one
+}
+return Y;
+},
+/**
+Generates an id string that is unique among all YUI instances in this
+execution context.
+@method guid
+@param {String} [pre] Prefix.
+@return {String} Unique id.
+**/
+guid: function(pre) {
+var id = this.Env._guidp + '_' + (++this.Env._uidx);
+return (pre) ? (pre + id) : id;
+},
+/**
+Returns a unique id associated with the given object and (if *readOnly* is
+falsy) stamps the object with that id so it can be identified in the future.
+Stamping an object involves adding a `_yuid` property to it that contains
+the object's id. One exception to this is that in Internet Explorer, DOM
+nodes have a `uniqueID` property that contains a browser-generated unique
+id, which will be used instead of a YUI-generated id when available.
+@method stamp
+@param {Object} o Object to stamp.
+@param {Boolean} readOnly If truthy and the given object has not already
+been stamped, the object will not be modified and `null` will be
+returned.
+@return {String} Object's unique id, or `null` if *readOnly* was truthy and
+the given object was not already stamped.
+**/
+stamp: function(o, readOnly) {
+var uid;
+if (!o) {
+return o;
+}
+// IE generates its own unique ID for dom nodes
+// The uniqueID property of a document node returns a new ID
+if (o.uniqueID && o.nodeType && o.nodeType !== 9) {
+uid = o.uniqueID;
+} else {
+uid = (typeof o === 'string') ? o : o._yuid;
+}
+if (!uid) {
+uid = this.guid();
+if (!readOnly) {
+try {
+o._yuid = uid;
+} catch (e) {
+uid = null;
+}
+}
+}
+return uid;
+},
+/**
+Destroys this YUI instance.
+@method destroy
+@since 3.3.0
+**/
+destroy: function() {
+var Y = this;
+if (Y.Event) {
+Y.Event._unload();
+}
+delete instances[Y.id];
+delete Y.Env;
+delete Y.config;
+}
+/**
+Safe `instanceof` wrapper that works around a memory leak in IE when the
+object being tested is `window` or `document`.
+Unless you are testing objects that may be `window` or `document`, you
+should use the native `instanceof` operator instead of this method.
+@method instanceOf
+@param {Object} o Object to check.
+@param {Object} type Class to check against.
+@since 3.3.0
+**/
+};
+YUI.prototype = proto;
+// inheritance utilities are not available yet
+for (prop in proto) {
+if (proto.hasOwnProperty(prop)) {
+YUI[prop] = proto[prop];
+}
+}
+/**
+Applies a configuration to all YUI instances in this execution context.
+The main use case for this method is in "mashups" where several third-party
+scripts need to write to a global YUI config, but cannot share a single
+centrally-managed config object. This way they can all call
+`YUI.applyConfig({})` instead of overwriting the single global config.
+@example
+YUI.applyConfig({
+modules: {
+davglass: {
+fullpath: './davglass.js'
+}
+}
+});
+YUI.applyConfig({
+modules: {
+foo: {
+fullpath: './foo.js'
+}
+}
+});
+YUI().use('davglass', function (Y) {
+// Module davglass will be available here.
+});
+@method applyConfig
+@param {Object} o Configuration object to apply.
+@static
+@since 3.5.0
+**/
+YUI.applyConfig = function(o) {
+if (!o) {
+return;
+}
+//If there is a GlobalConfig, apply it first to set the defaults
+if (YUI.GlobalConfig) {
+this.prototype.applyConfig.call(this, YUI.GlobalConfig);
+}
+//Apply this config to it
+this.prototype.applyConfig.call(this, o);
+//Reset GlobalConfig to the combined config
+YUI.GlobalConfig = this.config;
+};
+// set up the environment
+YUI._init();
+if (hasWin) {
+add(doc, 'DOMContentLoaded', handleReady);
+// add a window load event at load time so we can capture
+// the case where it fires before dynamic loading is
+// complete.
+add(window, 'load', handleLoad);
+} else {
+handleReady();
+handleLoad();
+}
+YUI.Env.add = add;
+YUI.Env.remove = remove;
+/*global exports*/
+// Support the CommonJS method for exporting our single global
+if (typeof exports == 'object') {
+exports.YUI = YUI;
+/**
+* Set a method to be called when `Get.script` is called in Node.js
+* `Get` will open the file, then pass it's content and it's path
+* to this method before attaching it. Commonly used for code coverage
+* instrumentation. <strong>Calling this multiple times will only
+* attach the last hook method</strong>. This method is only
+* available in Node.js.
+* @method setLoadHook
+* @static
+* @param {Function} fn The function to set
+* @param {String} fn.data The content of the file
+* @param {String} fn.path The file path of the file
+*/
+YUI.setLoadHook = function(fn) {
+YUI._getLoadHook = fn;
+};
+/**
+* Load hook for `Y.Get.script` in Node.js, see `YUI.setLoadHook`
+* @method _getLoadHook
+* @private
+* @param {String} data The content of the file
+* @param {String} path The file path of the file
+*/
+YUI._getLoadHook = null;
+}
+YUI.Env[VERSION] = {};
+}());
+/**
+Config object that contains all of the configuration options for
+this `YUI` instance.
+This object is supplied by the implementer when instantiating YUI. Some
+properties have default values if they are not supplied by the implementer.
+This object should not be updated directly because some values are cached. Use
+`applyConfig()` to update the config object on a YUI instance that has already
+been configured.
+@class config
+@static
+**/
+/**
+If `true` (the default), YUI will "bootstrap" the YUI Loader and module metadata
+if they're needed to load additional dependencies and aren't already available.
+Setting this to `false` will prevent YUI from automatically loading the Loader
+and module metadata, so you will need to manually ensure that they're available
+or handle dependency resolution yourself.
+@property {Boolean} bootstrap
+@default true
+**/
+/**
+If `true`, `Y.log()` messages will be written to the browser's debug console
+when available and when `useBrowserConsole` is also `true`.
+@property {Boolean} debug
+@default true
+**/
+/**
+Log messages to the browser console if `debug` is `true` and the browser has a
+supported console.
+@property {Boolean} useBrowserConsole
+@default true
+**/
+/**
+A hash of log sources that should be logged. If specified, only messages from
+these sources will be logged. Others will be discarded.
+@property {Object} logInclude
+@type object
+**/
+/**
+A hash of log sources that should be not be logged. If specified, all sources
+will be logged *except* those on this list.
+@property {Object} logExclude
+**/
+/**
+When the YUI seed file is dynamically loaded after the `window.onload` event has
+fired, set this to `true` to tell YUI that it shouldn't wait for `window.onload`
+to occur.
+This ensures that components that rely on `window.onload` and the `domready`
+custom event will work as expected even when YUI is dynamically injected.
+@property {Boolean} injected
+@default false
+**/
+/**
+If `true`, `Y.error()` will generate or re-throw a JavaScript error. Otherwise,
+errors are merely logged silently.
+@property {Boolean} throwFail
+@default true
+**/
+/**
+Reference to the global object for this execution context.
+In a browser, this is the current `window` object. In Node.js, this is the
+Node.js `global` object.
+@property {Object} global
+**/
+/**
+The browser window or frame that this YUI instance should operate in.
+When running in Node.js, this property is `undefined`, since there is no
+`window` object. Use `global` to get a reference to the global object that will
+work in both browsers and Node.js.
+@property {Window} win
+**/
+/**
+The browser `document` object associated with this YUI instance's `win` object.
+When running in Node.js, this property is `undefined`, since there is no
+`document` object.
+@property {Document} doc
+**/
+/**
+A list of modules that defines the YUI core (overrides the default list).
+@property {Array} core
+@type Array
+@default ['get', 'features', 'intl-base', 'yui-log', 'yui-later', 'loader-base', 'loader-rollup', 'loader-yui3']
+**/
+/**
+A list of languages to use in order of preference.
+This list is matched against the list of available languages in modules that the
+YUI instance uses to determine the best possible localization of language
+sensitive modules.
+Languages are represented using BCP 47 language tags, such as "en-GB" for
+English as used in the United Kingdom, or "zh-Hans-CN" for simplified Chinese as
+used in China. The list may be provided as a comma-separated string or as an
+array.
+@property {String|String[]} lang
+**/
+/**
+Default date format.
+@property {String} dateFormat
+@deprecated Use configuration in `DataType.Date.format()` instead.
+**/
+/**
+Default locale.
+@property {String} locale
+@deprecated Use `config.lang` instead.
+**/
+/**
+Default generic polling interval in milliseconds.
+@property {Number} pollInterval
+@default 20
+**/
+/**
+The number of dynamic `<script>` nodes to insert by default before automatically
+removing them when loading scripts.
+This applies only to script nodes because removing the node will not make the
+evaluated script unavailable. Dynamic CSS nodes are not auto purged, because
+removing a linked style sheet will also remove the style definitions.
+@property {Number} purgethreshold
+@default 20
+**/
+/**
+Delay in milliseconds to wait after a window `resize` event before firing the
+event. If another `resize` event occurs before this delay has elapsed, the
+delay will start over to ensure that `resize` events are throttled.
+@property {Number} windowResizeDelay
+@default 40
+**/
+/**
+Base directory for dynamic loading.
+@property {String} base
+**/
+/**
+Base URL for a dynamic combo handler. This will be used to make combo-handled
+module requests if `combine` is set to `true.
+@property {String} comboBase
+@default "http://yui.yahooapis.com/combo?"
+**/
+/**
+Root path to prepend to each module path when creating a combo-handled request.
+This is updated for each YUI release to point to a specific version of the
+library; for example: "3.8.0/build/".
+@property {String} root
+**/
+/**
+Filter to apply to module urls. This filter will modify the default path for all
+modules.
+The default path for the YUI library is the minified version of the files (e.g.,
+event-min.js). The filter property can be a predefined filter or a custom
+filter. The valid predefined filters are:
+- **debug**: Loads debug versions of modules (e.g., event-debug.js).
+- **raw**: Loads raw, non-minified versions of modules without debug logging
+(e.g., event.js).
+You can also define a custom filter, which must be an object literal containing
+a search regular expression and a replacement string:
+myFilter: {
+searchExp : "-min\\.js",
+replaceStr: "-debug.js"
+}
+@property {Object|String} filter
+**/
+/**
+Skin configuration and customizations.
+@property {Object} skin
+@param {String} [skin.defaultSkin='sam'] Default skin name. This skin will be
+applied automatically to skinnable components if not overridden by a
+component-specific skin name.
+@param {String} [skin.base='assets/skins/'] Default base path for a skin,
+relative to Loader's `base` path.
+@param {Object} [skin.overrides] Component-specific skin name overrides. Specify
+a component name as the key and, as the value, a string or array of strings
+for a skin or skins that should be loaded for that component instead of the
+`defaultSkin`.
+**/
+/**
+Hash of per-component filter specifications. If specified for a given component,
+this overrides the global `filter` config.
+@example
+YUI({
+modules: {
+'foo': './foo.js',
+'bar': './bar.js',
+'baz': './baz.js'
+},
+filters: {
+'foo': {
+searchExp: '.js',
+replaceStr: '-coverage.js'
+}
+}
+}).use('foo', 'bar', 'baz', function (Y) {
+// foo-coverage.js is loaded
+// bar.js is loaded
+// baz.js is loaded
+});
+@property {Object} filters
+**/
+/**
+If `true`, YUI will use a combo handler to load multiple modules in as few
+requests as possible.
+The YUI CDN (which YUI uses by default) supports combo handling, but other
+servers may not. If the server from which you're loading YUI does not support
+combo handling, set this to `false`.
+Providing a value for the `base` config property will cause `combine` to default
+to `false` instead of `true`.
+@property {Boolean} combine
+@default true
+*/
+/**
+Array of module names that should never be dynamically loaded.
+@property {String[]} ignore
+**/
+/**
+Array of module names that should always be loaded when required, even if
+already present on the page.
+@property {String[]} force
+**/
+/**
+DOM element or id that should be used as the insertion point for dynamically
+added `<script>` and `<link>` nodes.
+@property {HTMLElement|String} insertBefore
+**/
+/**
+Object hash containing attributes to add to dynamically added `<script>` nodes.
+@property {Object} jsAttributes
+**/
+/**
+Object hash containing attributes to add to dynamically added `<link>` nodes.
+@property {Object} cssAttributes
+**/
+/**
+Timeout in milliseconds before a dynamic JS or CSS request will be considered a
+failure. If not set, no timeout will be enforced.
+@property {Number} timeout
+**/
+/**
+Callback for the 'CSSComplete' event. When dynamically loading YUI components
+with CSS, this property fires when the CSS is finished loading.
+This provides an opportunity to enhance the presentation of a loading page a
+little bit before the entire loading process is done.
+@property {Function} onCSS
+**/
+/**
+A hash of module definitions to add to the list of available YUI modules. These
+modules can then be dynamically loaded via the `use()` method.
+This is a hash in which keys are module names and values are objects containing
+module metadata.
+See `Loader.addModule()` for the supported module metadata fields. Also see
+`groups`, which provides a way to configure the base and combo spec for a set of
+modules.
+@example
+modules: {
+mymod1: {
+requires: ['node'],
+fullpath: '/mymod1/mymod1.js'
+},
+mymod2: {
+requires: ['mymod1'],
+fullpath: '/mymod2/mymod2.js'
+},
+mymod3: '/js/mymod3.js',
+mycssmod: '/css/mycssmod.css'
+}
+@property {Object} modules
+**/
+/**
+Aliases are dynamic groups of modules that can be used as shortcuts.
+@example
+YUI({
+aliases: {
+davglass: [ 'node', 'yql', 'dd' ],
+mine: [ 'davglass', 'autocomplete']
+}
+}).use('mine', function (Y) {
+// Node, YQL, DD & AutoComplete available here.
+});
+@property {Object} aliases
+**/
+/**
+A hash of module group definitions.
+For each group you can specify a list of modules and the base path and
+combo spec to use when dynamically loading the modules.
+@example
+groups: {
+yui2: {
+// specify whether or not this group has a combo service
+combine: true,
+// The comboSeperator to use with this group's combo handler
+comboSep: ';',
+// The maxURLLength for this server
+maxURLLength: 500,
+// the base path for non-combo paths
+base: 'http://yui.yahooapis.com/2.8.0r4/build/',
+// the path to the combo service
+comboBase: 'http://yui.yahooapis.com/combo?',
+// a fragment to prepend to the path attribute when
+// when building combo urls
+root: '2.8.0r4/build/',
+// the module definitions
+modules:  {
+yui2_yde: {
+path: "yahoo-dom-event/yahoo-dom-event.js"
+},
+yui2_anim: {
+path: "animation/animation.js",
+requires: ['yui2_yde']
+}
+}
+}
+}
+@property {Object} groups
+**/
+/**
+Path to the Loader JS file, relative to the `base` path.
+This is used to dynamically bootstrap the Loader when it's needed and isn't yet
+available.
+@property {String} loaderPath
+@default "loader/loader-min.js"
+**/
+/**
+If `true`, YUI will attempt to load CSS dependencies and skins. Set this to
+`false` to prevent YUI from loading any CSS, or set it to the string `"force"`
+to force CSS dependencies to be loaded even if their associated JS modules are
+already loaded.
+@property {Boolean|String} fetchCSS
+@default true
+**/
+/**
+Default gallery version used to build gallery module urls.
+@property {String} gallery
+@since 3.1.0
+**/
+/**
+Default YUI 2 version used to build YUI 2 module urls.
+This is used for intrinsic YUI 2 support via the 2in3 project. Also see the
+`2in3` config for pulling different revisions of the wrapped YUI 2 modules.
+@property {String} yui2
+@default "2.9.0"
+@since 3.1.0
+**/
+/**
+Revision number of YUI 2in3 modules that should be used when loading YUI 2in3.
+@property {String} 2in3
+@default "4"
+@since 3.1.0
+**/
+/**
+Alternate console log function that should be used in environments without a
+supported native console. This function is executed with the YUI instance as its
+`this` object.
+@property {Function} logFn
+@since 3.1.0
+**/
+/**
+The minimum log level to log messages for. Log levels are defined
+incrementally. Messages greater than or equal to the level specified will
+be shown. All others will be discarded. The order of log levels in
+increasing priority is:
+debug
+info
+warn
+error
+@property {String} logLevel
+@default 'debug'
+@since 3.10.0
+**/
+/**
+Callback to execute when `Y.error()` is called. It receives the error message
+and a JavaScript error object if one was provided.
+This function is executed with the YUI instance as its `this` object.
+Returning `true` from this function will prevent an exception from being thrown.
+@property {Function} errorFn
+@param {String} errorFn.msg Error message
+@param {Object} [errorFn.err] Error object (if one was provided).
+@since 3.2.0
+**/
+/**
+A callback to execute when Loader fails to load one or more resources.
+This could be because of a script load failure. It could also be because a
+module fails to register itself when the `requireRegistration` config is `true`.
+If this function is defined, the `use()` callback will only be called when the
+loader succeeds. Otherwise, `use()` will always executes unless there was a
+JavaScript error when attaching a module.
+@property {Function} loadErrorFn
+@since 3.3.0
+**/
+/**
+If `true`, Loader will expect all loaded scripts to be first-class YUI modules
+that register themselves with the YUI global, and will trigger a failure if a
+loaded script does not register a YUI module.
+@property {Boolean} requireRegistration
+@default false
+@since 3.3.0
+**/
+/**
+Cache serviced use() requests.
+@property {Boolean} cacheUse
+@default true
+@since 3.3.0
+@deprecated No longer used.
+**/
+/**
+Whether or not YUI should use native ES5 functionality when available for
+features like `Y.Array.each()`, `Y.Object()`, etc.
+When `false`, YUI will always use its own fallback implementations instead of
+relying on ES5 functionality, even when ES5 functionality is available.
+@property {Boolean} useNativeES5
+@default true
+@since 3.5.0
+**/
+/**
+* Leverage native JSON stringify if the browser has a native
+* implementation.  In general, this is a good idea.  See the Known Issues
+* section in the JSON user guide for caveats.  The default value is true
+* for browsers with native JSON support.
+*
+* @property useNativeJSONStringify
+* @type Boolean
+* @default true
+* @since 3.8.0
+*/
+/**
+* Leverage native JSON parse if the browser has a native implementation.
+* In general, this is a good idea.  See the Known Issues section in the
+* JSON user guide for caveats.  The default value is true for browsers with
+* native JSON support.
+*
+* @property useNativeJSONParse
+* @type Boolean
+* @default true
+* @since 3.8.0
+*/
+/**
+Delay the `use` callback until a specific event has passed (`load`, `domready`, `contentready` or `available`)
+@property {Object|String} delayUntil
+@since 3.6.0
+@example
+You can use `load` or `domready` strings by default:
+YUI({
+delayUntil: 'domready'
+}, function (Y) {
+// This will not execute until 'domeready' occurs.
+});
+Or you can delay until a node is available (with `available` or `contentready`):
+YUI({
+delayUntil: {
+event: 'available',
+args : '#foo'
+}
+}, function (Y) {
+// This will not execute until a node matching the selector "#foo" is
+// available in the DOM.
+});
+**/
+YUI.add('yui-base', function (Y, NAME) {
+/*
+* YUI stub
+* @module yui
+* @submodule yui-base
+*/
+/**
+* The YUI module contains the components required for building the YUI
+* seed file.  This includes the script loading mechanism, a simple queue,
+* and the core utilities for the library.
+* @module yui
+* @submodule yui-base
+*/
+/**
+* Provides core language utilites and extensions used throughout YUI.
+*
+* @class Lang
+* @static
+*/
+var L = Y.Lang || (Y.Lang = {}),
+STRING_PROTO = String.prototype,
+TOSTRING     = Object.prototype.toString,
+TYPES = {
+'undefined'        : 'undefined',
+'number'           : 'number',
+'boolean'          : 'boolean',
+'string'           : 'string',
+'[object Function]': 'function',
+'[object RegExp]'  : 'regexp',
+'[object Array]'   : 'array',
+'[object Date]'    : 'date',
+'[object Error]'   : 'error'
+},
+SUBREGEX         = /\{\s*([^|}]+?)\s*(?:\|([^}]*))?\s*\}/g,
+WHITESPACE       = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF",
+WHITESPACE_CLASS = "[\x09-\x0D\x20\xA0\u1680\u180E\u2000-\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF]+",
+TRIM_LEFT_REGEX  = new RegExp("^" + WHITESPACE_CLASS),
+TRIM_RIGHT_REGEX = new RegExp(WHITESPACE_CLASS + "$"),
+TRIMREGEX        = new RegExp(TRIM_LEFT_REGEX.source + "|" + TRIM_RIGHT_REGEX.source, "g"),
+NATIVE_FN_REGEX  = /\{\s*\[(?:native code|function)\]\s*\}/i;
+// -- Protected Methods --------------------------------------------------------
+/**
+Returns `true` if the given function appears to be implemented in native code,
+`false` otherwise. Will always return `false` -- even in ES5-capable browsers --
+if the `useNativeES5` YUI config option is set to `false`.
+This isn't guaranteed to be 100% accurate and won't work for anything other than
+functions, but it can be useful for determining whether a function like
+`Array.prototype.forEach` is native or a JS shim provided by another library.
+There's a great article by @kangax discussing certain flaws with this technique:
+<http://perfectionkills.com/detecting-built-in-host-methods/>
+While his points are valid, it's still possible to benefit from this function
+as long as it's used carefully and sparingly, and in such a way that false
+negatives have minimal consequences. It's used internally to avoid using
+potentially broken non-native ES5 shims that have been added to the page by
+other libraries.
+@method _isNative
+@param {Function} fn Function to test.
+@return {Boolean} `true` if _fn_ appears to be native, `false` otherwise.
+@static
+@protected
+@since 3.5.0
+**/
+L._isNative = function (fn) {
+return !!(Y.config.useNativeES5 && fn && NATIVE_FN_REGEX.test(fn));
+};
+// -- Public Methods -----------------------------------------------------------
+/**
+* Determines whether or not the provided item is an array.
+*
+* Returns `false` for array-like collections such as the function `arguments`
+* collection or `HTMLElement` collections. Use `Y.Array.test()` if you want to
+* test for an array-like collection.
+*
+* @method isArray
+* @param o The object to test.
+* @return {boolean} true if o is an array.
+* @static
+*/
+L.isArray = L._isNative(Array.isArray) ? Array.isArray : function (o) {
+return L.type(o) === 'array';
+};
+/**
+* Determines whether or not the provided item is a boolean.
+* @method isBoolean
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is a boolean.
+*/
+L.isBoolean = function(o) {
+return typeof o === 'boolean';
+};
+/**
+* Determines whether or not the supplied item is a date instance.
+* @method isDate
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is a date.
+*/
+L.isDate = function(o) {
+return L.type(o) === 'date' && o.toString() !== 'Invalid Date' && !isNaN(o);
+};
+/**
+* <p>
+* Determines whether or not the provided item is a function.
+* Note: Internet Explorer thinks certain functions are objects:
+* </p>
+*
+* <pre>
+* var obj = document.createElement("object");
+* Y.Lang.isFunction(obj.getAttribute) // reports false in IE
+* &nbsp;
+* var input = document.createElement("input"); // append to body
+* Y.Lang.isFunction(input.focus) // reports false in IE
+* </pre>
+*
+* <p>
+* You will have to implement additional tests if these functions
+* matter to you.
+* </p>
+*
+* @method isFunction
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is a function.
+*/
+L.isFunction = function(o) {
+return L.type(o) === 'function';
+};
+/**
+* Determines whether or not the provided item is null.
+* @method isNull
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is null.
+*/
+L.isNull = function(o) {
+return o === null;
+};
+/**
+* Determines whether or not the provided item is a legal number.
+* @method isNumber
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is a number.
+*/
+L.isNumber = function(o) {
+return typeof o === 'number' && isFinite(o);
+};
+/**
+* Determines whether or not the provided item is of type object
+* or function. Note that arrays are also objects, so
+* <code>Y.Lang.isObject([]) === true</code>.
+* @method isObject
+* @static
+* @param o The object to test.
+* @param failfn {boolean} fail if the input is a function.
+* @return {boolean} true if o is an object.
+* @see isPlainObject
+*/
+L.isObject = function(o, failfn) {
+var t = typeof o;
+return (o && (t === 'object' ||
+(!failfn && (t === 'function' || L.isFunction(o))))) || false;
+};
+/**
+* Determines whether or not the provided value is a regexp.
+* @method isRegExp
+* @static
+* @param value The value or object to test.
+* @return {boolean} true if value is a regexp.
+*/
+L.isRegExp = function(value) {
+return L.type(value) === 'regexp';
+};
+/**
+* Determines whether or not the provided item is a string.
+* @method isString
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is a string.
+*/
+L.isString = function(o) {
+return typeof o === 'string';
+};
+/**
+* Determines whether or not the provided item is undefined.
+* @method isUndefined
+* @static
+* @param o The object to test.
+* @return {boolean} true if o is undefined.
+*/
+L.isUndefined = function(o) {
+return typeof o === 'undefined';
+};
+/**
+* A convenience method for detecting a legitimate non-null value.
+* Returns false for null/undefined/NaN, true for other values,
+* including 0/false/''
+* @method isValue
+* @static
+* @param o The item to test.
+* @return {boolean} true if it is not null/undefined/NaN || false.
+*/
+L.isValue = function(o) {
+var t = L.type(o);
+switch (t) {
+case 'number':
+return isFinite(o);
+case 'null': // fallthru
+case 'undefined':
+return false;
+default:
+return !!t;
+}
+};
+/**
+* Returns the current time in milliseconds.
+*
+* @method now
+* @return {Number} Current time in milliseconds.
+* @static
+* @since 3.3.0
+*/
+L.now = Date.now || function () {
+return new Date().getTime();
+};
+/**
+* Performs `{placeholder}` substitution on a string. The object passed as the
+* second parameter provides values to replace the `{placeholder}`s.
+* `{placeholder}` token names must match property names of the object. For example,
+*
+*`var greeting = Y.Lang.sub("Hello, {who}!", { who: "World" });`
+*
+* `{placeholder}` tokens that are undefined on the object map will be left
+* in tact (leaving unsightly `{placeholder}`'s in the output string).
+*
+* @method sub
+* @param {string} s String to be modified.
+* @param {object} o Object containing replacement values.
+* @return {string} the substitute result.
+* @static
+* @since 3.2.0
+*/
+L.sub = function(s, o) {
+return s.replace ? s.replace(SUBREGEX, function (match, key) {
+return L.isUndefined(o[key]) ? match : o[key];
+}) : s;
+};
+/**
+* Returns a string without any leading or trailing whitespace.  If
+* the input is not a string, the input will be returned untouched.
+* @method trim
+* @static
+* @param s {string} the string to trim.
+* @return {string} the trimmed string.
+*/
+L.trim = L._isNative(STRING_PROTO.trim) && !WHITESPACE.trim() ? function(s) {
+return s && s.trim ? s.trim() : s;
+} : function (s) {
+try {
+return s.replace(TRIMREGEX, '');
+} catch (e) {
+return s;
+}
+};
+/**
+* Returns a string without any leading whitespace.
+* @method trimLeft
+* @static
+* @param s {string} the string to trim.
+* @return {string} the trimmed string.
+*/
+L.trimLeft = L._isNative(STRING_PROTO.trimLeft) && !WHITESPACE.trimLeft() ? function (s) {
+return s.trimLeft();
+} : function (s) {
+return s.replace(TRIM_LEFT_REGEX, '');
+};
+/**
+* Returns a string without any trailing whitespace.
+* @method trimRight
+* @static
+* @param s {string} the string to trim.
+* @return {string} the trimmed string.
+*/
+L.trimRight = L._isNative(STRING_PROTO.trimRight) && !WHITESPACE.trimRight() ? function (s) {
+return s.trimRight();
+} : function (s) {
+return s.replace(TRIM_RIGHT_REGEX, '');
+};
+/**
+Returns one of the following strings, representing the type of the item passed
+in:
+* "array"
+* "boolean"
+* "date"
+* "error"
+* "function"
+* "null"
+* "number"
+* "object"
+* "regexp"
+* "string"
+* "undefined"
+Known issues:
+* `typeof HTMLElementCollection` returns function in Safari, but
+`Y.Lang.type()` reports "object", which could be a good thing --
+but it actually caused the logic in <code>Y.Lang.isObject</code> to fail.
+@method type
+@param o the item to test.
+@return {string} the detected type.
+@static
+**/
+L.type = function(o) {
+return TYPES[typeof o] || TYPES[TOSTRING.call(o)] || (o ? 'object' : 'null');
+};
+/**
+@module yui
+@submodule yui-base
+*/
+var Lang   = Y.Lang,
+Native = Array.prototype,
+hasOwn = Object.prototype.hasOwnProperty;
+/**
+Provides utility methods for working with arrays. Additional array helpers can
+be found in the `collection` and `array-extras` modules.
+`Y.Array(thing)` returns a native array created from _thing_. Depending on
+_thing_'s type, one of the following will happen:
+* Arrays are returned unmodified unless a non-zero _startIndex_ is
+specified.
+* Array-like collections (see `Array.test()`) are converted to arrays.
+* For everything else, a new array is created with _thing_ as the sole
+item.
+Note: elements that are also collections, such as `<form>` and `<select>`
+elements, are not automatically converted to arrays. To force a conversion,
+pass `true` as the value of the _force_ parameter.
+@class Array
+@constructor
+@param {Any} thing The thing to arrayify.
+@param {Number} [startIndex=0] If non-zero and _thing_ is an array or array-like
+collection, a subset of items starting at the specified index will be
+returned.
+@param {Boolean} [force=false] If `true`, _thing_ will be treated as an
+array-like collection no matter what.
+@return {Array} A native array created from _thing_, according to the rules
+described above.
+**/
+function YArray(thing, startIndex, force) {
+var len, result;
+/*jshint expr: true*/
+startIndex || (startIndex = 0);
+if (force || YArray.test(thing)) {
+// IE throws when trying to slice HTMLElement collections.
+try {
+return Native.slice.call(thing, startIndex);
+} catch (ex) {
+result = [];
+for (len = thing.length; startIndex < len; ++startIndex) {
+result.push(thing[startIndex]);
+}
+return result;
+}
+}
+return [thing];
+}
+Y.Array = YArray;
+/**
+Dedupes an array of strings, returning an array that's guaranteed to contain
+only one copy of a given string.
+This method differs from `Array.unique()` in that it's optimized for use only
+with arrays consisting entirely of strings or entirely of numbers, whereas
+`unique` may be used with other value types (but is slower).
+Using `dedupe()` with values other than strings or numbers, or with arrays
+containing a mix of strings and numbers, may result in unexpected behavior.
+@method dedupe
+@param {String[]|Number[]} array Array of strings or numbers to dedupe.
+@return {Array} Copy of _array_ containing no duplicate values.
+@static
+@since 3.4.0
+**/
+YArray.dedupe = Lang._isNative(Object.create) ? function (array) {
+var hash    = Object.create(null),
+results = [],
+i, item, len;
+for (i = 0, len = array.length; i < len; ++i) {
+item = array[i];
+if (!hash[item]) {
+hash[item] = 1;
+results.push(item);
+}
+}
+return results;
+} : function (array) {
+var hash    = {},
+results = [],
+i, item, len;
+for (i = 0, len = array.length; i < len; ++i) {
+item = array[i];
+if (!hasOwn.call(hash, item)) {
+hash[item] = 1;
+results.push(item);
+}
+}
+return results;
+};
+/**
+Executes the supplied function on each item in the array. This method wraps
+the native ES5 `Array.forEach()` method if available.
+@method each
+@param {Array} array Array to iterate.
+@param {Function} fn Function to execute on each item in the array. The function
+will receive the following arguments:
+@param {Any} fn.item Current array item.
+@param {Number} fn.index Current array index.
+@param {Array} fn.array Array being iterated.
+@param {Object} [thisObj] `this` object to use when calling _fn_.
+@return {YUI} The YUI instance.
+@static
+**/
+YArray.each = YArray.forEach = Lang._isNative(Native.forEach) ? function (array, fn, thisObj) {
+Native.forEach.call(array || [], fn, thisObj || Y);
+return Y;
+} : function (array, fn, thisObj) {
+for (var i = 0, len = (array && array.length) || 0; i < len; ++i) {
+if (i in array) {
+fn.call(thisObj || Y, array[i], i, array);
+}
+}
+return Y;
+};
+/**
+Alias for `each()`.
+@method forEach
+@static
+**/
+/**
+Returns an object using the first array as keys and the second as values. If
+the second array is not provided, or if it doesn't contain the same number of
+values as the first array, then `true` will be used in place of the missing
+values.
+@example
+Y.Array.hash(['a', 'b', 'c'], ['foo', 'bar']);
+// => {a: 'foo', b: 'bar', c: true}
+@method hash
+@param {String[]} keys Array of strings to use as keys.
+@param {Array} [values] Array to use as values.
+@return {Object} Hash using the first array as keys and the second as values.
+@static
+**/
+YArray.hash = function (keys, values) {
+var hash = {},
+vlen = (values && values.length) || 0,
+i, len;
+for (i = 0, len = keys.length; i < len; ++i) {
+if (i in keys) {
+hash[keys[i]] = vlen > i && i in values ? values[i] : true;
+}
+}
+return hash;
+};
+/**
+Returns the index of the first item in the array that's equal (using a strict
+equality check) to the specified _value_, or `-1` if the value isn't found.
+This method wraps the native ES5 `Array.indexOf()` method if available.
+@method indexOf
+@param {Array} array Array to search.
+@param {Any} value Value to search for.
+@param {Number} [from=0] The index at which to begin the search.
+@return {Number} Index of the item strictly equal to _value_, or `-1` if not
+found.
+@static
+**/
+YArray.indexOf = Lang._isNative(Native.indexOf) ? function (array, value, from) {
+return Native.indexOf.call(array, value, from);
+} : function (array, value, from) {
+// http://es5.github.com/#x15.4.4.14
+var len = array.length;
+from = +from || 0;
+from = (from > 0 || -1) * Math.floor(Math.abs(from));
+if (from < 0) {
+from += len;
+if (from < 0) {
+from = 0;
+}
+}
+for (; from < len; ++from) {
+if (from in array && array[from] === value) {
+return from;
+}
+}
+return -1;
+};
+/**
+Numeric sort convenience function.
+The native `Array.prototype.sort()` function converts values to strings and
+sorts them in lexicographic order, which is unsuitable for sorting numeric
+values. Provide `Array.numericSort` as a custom sort function when you want
+to sort values in numeric order.
+@example
+[42, 23, 8, 16, 4, 15].sort(Y.Array.numericSort);
+// => [4, 8, 15, 16, 23, 42]
+@method numericSort
+@param {Number} a First value to compare.
+@param {Number} b Second value to compare.
+@return {Number} Difference between _a_ and _b_.
+@static
+**/
+YArray.numericSort = function (a, b) {
+return a - b;
+};
+/**
+Executes the supplied function on each item in the array. Returning a truthy
+value from the function will stop the processing of remaining items.
+@method some
+@param {Array} array Array to iterate over.
+@param {Function} fn Function to execute on each item. The function will receive
+the following arguments:
+@param {Any} fn.value Current array item.
+@param {Number} fn.index Current array index.
+@param {Array} fn.array Array being iterated over.
+@param {Object} [thisObj] `this` object to use when calling _fn_.
+@return {Boolean} `true` if the function returns a truthy value on any of the
+items in the array; `false` otherwise.
+@static
+**/
+YArray.some = Lang._isNative(Native.some) ? function (array, fn, thisObj) {
+return Native.some.call(array, fn, thisObj);
+} : function (array, fn, thisObj) {
+for (var i = 0, len = array.length; i < len; ++i) {
+if (i in array && fn.call(thisObj, array[i], i, array)) {
+return true;
+}
+}
+return false;
+};
+/**
+Evaluates _obj_ to determine if it's an array, an array-like collection, or
+something else. This is useful when working with the function `arguments`
+collection and `HTMLElement` collections.
+Note: This implementation doesn't consider elements that are also
+collections, such as `<form>` and `<select>`, to be array-like.
+@method test
+@param {Object} obj Object to test.
+@return {Number} A number indicating the results of the test:
+* 0: Neither an array nor an array-like collection.
+* 1: Real array.
+* 2: Array-like collection.
+@static
+**/
+YArray.test = function (obj) {
+var result = 0;
+if (Lang.isArray(obj)) {
+result = 1;
+} else if (Lang.isObject(obj)) {
+try {
+// indexed, but no tagName (element) or scrollTo/document (window. From DOM.isWindow test which we can't use here),
+// or functions without apply/call (Safari
+// HTMLElementCollection bug).
+if ('length' in obj && !obj.tagName && !(obj.scrollTo && obj.document) && !obj.apply) {
+result = 2;
+}
+} catch (ex) {}
+}
+return result;
+};
+/**
+* The YUI module contains the components required for building the YUI
+* seed file.  This includes the script loading mechanism, a simple queue,
+* and the core utilities for the library.
+* @module yui
+* @submodule yui-base
+*/
+/**
+* A simple FIFO queue.  Items are added to the Queue with add(1..n items) and
+* removed using next().
+*
+* @class Queue
+* @constructor
+* @param {MIXED} item* 0..n items to seed the queue.
+*/
+function Queue() {
+this._init();
+this.add.apply(this, arguments);
+}
+Queue.prototype = {
+/**
+* Initialize the queue
+*
+* @method _init
+* @protected
+*/
+_init: function() {
+/**
+* The collection of enqueued items
+*
+* @property _q
+* @type Array
+* @protected
+*/
+this._q = [];
+},
+/**
+* Get the next item in the queue. FIFO support
+*
+* @method next
+* @return {MIXED} the next item in the queue.
+*/
+next: function() {
+return this._q.shift();
+},
+/**
+* Get the last in the queue. LIFO support.
+*
+* @method last
+* @return {MIXED} the last item in the queue.
+*/
+last: function() {
+return this._q.pop();
+},
+/**
+* Add 0..n items to the end of the queue.
+*
+* @method add
+* @param {MIXED} item* 0..n items.
+* @return {object} this queue.
+*/
+add: function() {
+this._q.push.apply(this._q, arguments);
+return this;
+},
+/**
+* Returns the current number of queued items.
+*
+* @method size
+* @return {Number} The size.
+*/
+size: function() {
+return this._q.length;
+}
+};
+Y.Queue = Queue;
+YUI.Env._loaderQueue = YUI.Env._loaderQueue || new Queue();
+/**
+The YUI module contains the components required for building the YUI seed file.
+This includes the script loading mechanism, a simple queue, and the core
+utilities for the library.
+@module yui
+@submodule yui-base
+**/
+var CACHED_DELIMITER = '__',
+hasOwn   = Object.prototype.hasOwnProperty,
+isObject = Y.Lang.isObject;
+/**
+Returns a wrapper for a function which caches the return value of that function,
+keyed off of the combined string representation of the argument values provided
+when the wrapper is called.
+Calling this function again with the same arguments will return the cached value
+rather than executing the wrapped function.
+Note that since the cache is keyed off of the string representation of arguments
+passed to the wrapper function, arguments that aren't strings and don't provide
+a meaningful `toString()` method may result in unexpected caching behavior. For
+example, the objects `{}` and `{foo: 'bar'}` would both be converted to the
+string `[object Object]` when used as a cache key.
+@method cached
+@param {Function} source The function to memoize.
+@param {Object} [cache={}] Object in which to store cached values. You may seed
+this object with pre-existing cached values if desired.
+@param {any} [refetch] If supplied, this value is compared with the cached value
+using a `==` comparison. If the values are equal, the wrapped function is
+executed again even though a cached value exists.
+@return {Function} Wrapped function.
+@for YUI
+**/
+Y.cached = function (source, cache, refetch) {
+/*jshint expr: true*/
+cache || (cache = {});
+return function (arg) {
+var key = arguments.length > 1 ?
+Array.prototype.join.call(arguments, CACHED_DELIMITER) :
+String(arg);
+/*jshint eqeqeq: false*/
+if (!(key in cache) || (refetch && cache[key] == refetch)) {
+cache[key] = source.apply(source, arguments);
+}
+return cache[key];
+};
+};
+/**
+Returns the `location` object from the window/frame in which this YUI instance
+operates, or `undefined` when executing in a non-browser environment
+(e.g. Node.js).
+It is _not_ recommended to hold references to the `window.location` object
+outside of the scope of a function in which its properties are being accessed or
+its methods are being called. This is because of a nasty bug/issue that exists
+in both Safari and MobileSafari browsers:
+[WebKit Bug 34679](https://bugs.webkit.org/show_bug.cgi?id=34679).
+@method getLocation
+@return {location} The `location` object from the window/frame in which this YUI
+instance operates.
+@since 3.5.0
+**/
+Y.getLocation = function () {
+// It is safer to look this up every time because yui-base is attached to a
+// YUI instance before a user's config is applied; i.e. `Y.config.win` does
+// not point the correct window object when this file is loaded.
+var win = Y.config.win;
+// It is not safe to hold a reference to the `location` object outside the
+// scope in which it is being used. The WebKit engine used in Safari and
+// MobileSafari will "disconnect" the `location` object from the `window`
+// when a page is restored from back/forward history cache.
+return win && win.location;
+};
+/**
+Returns a new object containing all of the properties of all the supplied
+objects. The properties from later objects will overwrite those in earlier
+objects.
+Passing in a single object will create a shallow copy of it. For a deep copy,
+use `clone()`.
+@method merge
+@param {Object} objects* One or more objects to merge.
+@return {Object} A new merged object.
+**/
+Y.merge = function () {
+var i      = 0,
+len    = arguments.length,
+result = {},
+key,
+obj;
+for (; i < len; ++i) {
+obj = arguments[i];
+for (key in obj) {
+if (hasOwn.call(obj, key)) {
+result[key] = obj[key];
+}
+}
+}
+return result;
+};
+/**
+Mixes _supplier_'s properties into _receiver_.
+Properties on _receiver_ or _receiver_'s prototype will not be overwritten or
+shadowed unless the _overwrite_ parameter is `true`, and will not be merged
+unless the _merge_ parameter is `true`.
+In the default mode (0), only properties the supplier owns are copied (prototype
+properties are not copied). The following copying modes are available:
+* `0`: _Default_. Object to object.
+* `1`: Prototype to prototype.
+* `2`: Prototype to prototype and object to object.
+* `3`: Prototype to object.
+* `4`: Object to prototype.
+@method mix
+@param {Function|Object} receiver The object or function to receive the mixed
+properties.
+@param {Function|Object} supplier The object or function supplying the
+properties to be mixed.
+@param {Boolean} [overwrite=false] If `true`, properties that already exist
+on the receiver will be overwritten with properties from the supplier.
+@param {String[]} [whitelist] An array of property names to copy. If
+specified, only the whitelisted properties will be copied, and all others
+will be ignored.
+@param {Number} [mode=0] Mix mode to use. See above for available modes.
+@param {Boolean} [merge=false] If `true`, objects and arrays that already
+exist on the receiver will have the corresponding object/array from the
+supplier merged into them, rather than being skipped or overwritten. When
+both _overwrite_ and _merge_ are `true`, _merge_ takes precedence.
+@return {Function|Object|YUI} The receiver, or the YUI instance if the
+specified receiver is falsy.
+**/
+Y.mix = function(receiver, supplier, overwrite, whitelist, mode, merge) {
+var alwaysOverwrite, exists, from, i, key, len, to;
+// If no supplier is given, we return the receiver. If no receiver is given,
+// we return Y. Returning Y doesn't make much sense to me, but it's
+// grandfathered in for backcompat reasons.
+if (!receiver || !supplier) {
+return receiver || Y;
+}
+if (mode) {
+// In mode 2 (prototype to prototype and object to object), we recurse
+// once to do the proto to proto mix. The object to object mix will be
+// handled later on.
+if (mode === 2) {
+Y.mix(receiver.prototype, supplier.prototype, overwrite,
+whitelist, 0, merge);
+}
+// Depending on which mode is specified, we may be copying from or to
+// the prototypes of the supplier and receiver.
+from = mode === 1 || mode === 3 ? supplier.prototype : supplier;
+to   = mode === 1 || mode === 4 ? receiver.prototype : receiver;
+// If either the supplier or receiver doesn't actually have a
+// prototype property, then we could end up with an undefined `from`
+// or `to`. If that happens, we abort and return the receiver.
+if (!from || !to) {
+return receiver;
+}
+} else {
+from = supplier;
+to   = receiver;
+}
+// If `overwrite` is truthy and `merge` is falsy, then we can skip a
+// property existence check on each iteration and save some time.
+alwaysOverwrite = overwrite && !merge;
+if (whitelist) {
+for (i = 0, len = whitelist.length; i < len; ++i) {
+key = whitelist[i];
+// We call `Object.prototype.hasOwnProperty` instead of calling
+// `hasOwnProperty` on the object itself, since the object's
+// `hasOwnProperty` method may have been overridden or removed.
+// Also, some native objects don't implement a `hasOwnProperty`
+// method.
+if (!hasOwn.call(from, key)) {
+continue;
+}
+// The `key in to` check here is (sadly) intentional for backwards
+// compatibility reasons. It prevents undesired shadowing of
+// prototype members on `to`.
+exists = alwaysOverwrite ? false : key in to;
+if (merge && exists && isObject(to[key], true)
+&& isObject(from[key], true)) {
+// If we're in merge mode, and the key is present on both
+// objects, and the value on both objects is either an object or
+// an array (but not a function), then we recurse to merge the
+// `from` value into the `to` value instead of overwriting it.
+//
+// Note: It's intentional that the whitelist isn't passed to the
+// recursive call here. This is legacy behavior that lots of
+// code still depends on.
+Y.mix(to[key], from[key], overwrite, null, 0, merge);
+} else if (overwrite || !exists) {
+// We're not in merge mode, so we'll only copy the `from` value
+// to the `to` value if we're in overwrite mode or if the
+// current key doesn't exist on the `to` object.
+to[key] = from[key];
+}
+}
+} else {
+for (key in from) {
+// The code duplication here is for runtime performance reasons.
+// Combining whitelist and non-whitelist operations into a single
+// loop or breaking the shared logic out into a function both result
+// in worse performance, and Y.mix is critical enough that the byte
+// tradeoff is worth it.
+if (!hasOwn.call(from, key)) {
+continue;
+}
+// The `key in to` check here is (sadly) intentional for backwards
+// compatibility reasons. It prevents undesired shadowing of
+// prototype members on `to`.
+exists = alwaysOverwrite ? false : key in to;
+if (merge && exists && isObject(to[key], true)
+&& isObject(from[key], true)) {
+Y.mix(to[key], from[key], overwrite, null, 0, merge);
+} else if (overwrite || !exists) {
+to[key] = from[key];
+}
+}
+// If this is an IE browser with the JScript enumeration bug, force
+// enumeration of the buggy properties by making a recursive call with
+// the buggy properties as the whitelist.
+if (Y.Object._hasEnumBug) {
+Y.mix(to, from, overwrite, Y.Object._forceEnum, mode, merge);
+}
+}
+return receiver;
+};
+/**
+* The YUI module contains the components required for building the YUI
+* seed file.  This includes the script loading mechanism, a simple queue,
+* and the core utilities for the library.
+* @module yui
+* @submodule yui-base
+*/
+/**
+* Adds utilities to the YUI instance for working with objects.
+*
+* @class Object
+*/
+var Lang   = Y.Lang,
+hasOwn = Object.prototype.hasOwnProperty,
+UNDEFINED, // <-- Note the comma. We're still declaring vars.
+/**
+* Returns a new object that uses _obj_ as its prototype. This method wraps the
+* native ES5 `Object.create()` method if available, but doesn't currently
+* pass through `Object.create()`'s second argument (properties) in order to
+* ensure compatibility with older browsers.
+*
+* @method ()
+* @param {Object} obj Prototype object.
+* @return {Object} New object using _obj_ as its prototype.
+* @static
+*/
+O = Y.Object = Lang._isNative(Object.create) ? function (obj) {
+// We currently wrap the native Object.create instead of simply aliasing it
+// to ensure consistency with our fallback shim, which currently doesn't
+// support Object.create()'s second argument (properties). Once we have a
+// safe fallback for the properties arg, we can stop wrapping
+// Object.create().
+return Object.create(obj);
+} : (function () {
+// Reusable constructor function for the Object.create() shim.
+function F() {}
+// The actual shim.
+return function (obj) {
+F.prototype = obj;
+return new F();
+};
+}()),
+/**
+* Property names that IE doesn't enumerate in for..in loops, even when they
+* should be enumerable. When `_hasEnumBug` is `true`, it's necessary to
+* manually enumerate these properties.
+*
+* @property _forceEnum
+* @type String[]
+* @protected
+* @static
+*/
+forceEnum = O._forceEnum = [
+'hasOwnProperty',
+'isPrototypeOf',
+'propertyIsEnumerable',
+'toString',
+'toLocaleString',
+'valueOf'
+],
+/**
+* `true` if this browser has the JScript enumeration bug that prevents
+* enumeration of the properties named in the `_forceEnum` array, `false`
+* otherwise.
+*
+* See:
+*   - <https://developer.mozilla.org/en/ECMAScript_DontEnum_attribute#JScript_DontEnum_Bug>
+*   - <http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation>
+*
+* @property _hasEnumBug
+* @type Boolean
+* @protected
+* @static
+*/
+hasEnumBug = O._hasEnumBug = !{valueOf: 0}.propertyIsEnumerable('valueOf'),
+/**
+* `true` if this browser incorrectly considers the `prototype` property of
+* functions to be enumerable. Currently known to affect Opera 11.50 and Android 2.3.x.
+*
+* @property _hasProtoEnumBug
+* @type Boolean
+* @protected
+* @static
+*/
+hasProtoEnumBug = O._hasProtoEnumBug = (function () {}).propertyIsEnumerable('prototype'),
+/**
+* Returns `true` if _key_ exists on _obj_, `false` if _key_ doesn't exist or
+* exists only on _obj_'s prototype. This is essentially a safer version of
+* `obj.hasOwnProperty()`.
+*
+* @method owns
+* @param {Object} obj Object to test.
+* @param {String} key Property name to look for.
+* @return {Boolean} `true` if _key_ exists on _obj_, `false` otherwise.
+* @static
+*/
+owns = O.owns = function (obj, key) {
+return !!obj && hasOwn.call(obj, key);
+}; // <-- End of var declarations.
+/**
+* Alias for `owns()`.
+*
+* @method hasKey
+* @param {Object} obj Object to test.
+* @param {String} key Property name to look for.
+* @return {Boolean} `true` if _key_ exists on _obj_, `false` otherwise.
+* @static
+*/
+O.hasKey = owns;
+/**
+* Returns an array containing the object's enumerable keys. Does not include
+* prototype keys or non-enumerable keys.
+*
+* Note that keys are returned in enumeration order (that is, in the same order
+* that they would be enumerated by a `for-in` loop), which may not be the same
+* as the order in which they were defined.
+*
+* This method is an alias for the native ES5 `Object.keys()` method if
+* available and non-buggy. The Opera 11.50 and Android 2.3.x versions of
+* `Object.keys()` have an inconsistency as they consider `prototype` to be
+* enumerable, so a non-native shim is used to rectify the difference.
+*
+* @example
+*
+*     Y.Object.keys({a: 'foo', b: 'bar', c: 'baz'});
+*     // => ['a', 'b', 'c']
+*
+* @method keys
+* @param {Object} obj An object.
+* @return {String[]} Array of keys.
+* @static
+*/
+O.keys = Lang._isNative(Object.keys) && !hasProtoEnumBug ? Object.keys : function (obj) {
+if (!Lang.isObject(obj)) {
+throw new TypeError('Object.keys called on a non-object');
+}
+var keys = [],
+i, key, len;
+if (hasProtoEnumBug && typeof obj === 'function') {
+for (key in obj) {
+if (owns(obj, key) && key !== 'prototype') {
+keys.push(key);
+}
+}
+} else {
+for (key in obj) {
+if (owns(obj, key)) {
+keys.push(key);
+}
+}
+}
+if (hasEnumBug) {
+for (i = 0, len = forceEnum.length; i < len; ++i) {
+key = forceEnum[i];
+if (owns(obj, key)) {
+keys.push(key);
+}
+}
+}
+return keys;
+};
+/**
+* Returns an array containing the values of the object's enumerable keys.
+*
+* Note that values are returned in enumeration order (that is, in the same
+* order that they would be enumerated by a `for-in` loop), which may not be the
+* same as the order in which they were defined.
+*
+* @example
+*
+*     Y.Object.values({a: 'foo', b: 'bar', c: 'baz'});
+*     // => ['foo', 'bar', 'baz']
+*
+* @method values
+* @param {Object} obj An object.
+* @return {Array} Array of values.
+* @static
+*/
+O.values = function (obj) {
+var keys   = O.keys(obj),
+i      = 0,
+len    = keys.length,
+values = [];
+for (; i < len; ++i) {
+values.push(obj[keys[i]]);
+}
+return values;
+};
+/**
+* Returns the number of enumerable keys owned by an object.
+*
+* @method size
+* @param {Object} obj An object.
+* @return {Number} The object's size.
+* @static
+*/
+O.size = function (obj) {
+try {
+return O.keys(obj).length;
+} catch (ex) {
+return 0; // Legacy behavior for non-objects.
+}
+};
+/**
+* Returns `true` if the object owns an enumerable property with the specified
+* value.
+*
+* @method hasValue
+* @param {Object} obj An object.
+* @param {any} value The value to search for.
+* @return {Boolean} `true` if _obj_ contains _value_, `false` otherwise.
+* @static
+*/
+O.hasValue = function (obj, value) {
+return Y.Array.indexOf(O.values(obj), value) > -1;
+};
+/**
+* Executes a function on each enumerable property in _obj_. The function
+* receives the value, the key, and the object itself as parameters (in that
+* order).
+*
+* By default, only properties owned by _obj_ are enumerated. To include
+* prototype properties, set the _proto_ parameter to `true`.
+*
+* @method each
+* @param {Object} obj Object to enumerate.
+* @param {Function} fn Function to execute on each enumerable property.
+*   @param {mixed} fn.value Value of the current property.
+*   @param {String} fn.key Key of the current property.
+*   @param {Object} fn.obj Object being enumerated.
+* @param {Object} [thisObj] `this` object to use when calling _fn_.
+* @param {Boolean} [proto=false] Include prototype properties.
+* @return {YUI} the YUI instance.
+* @chainable
+* @static
+*/
+O.each = function (obj, fn, thisObj, proto) {
+var key;
+for (key in obj) {
+if (proto || owns(obj, key)) {
+fn.call(thisObj || Y, obj[key], key, obj);
+}
+}
+return Y;
+};
+/**
+* Executes a function on each enumerable property in _obj_, but halts if the
+* function returns a truthy value. The function receives the value, the key,
+* and the object itself as paramters (in that order).
+*
+* By default, only properties owned by _obj_ are enumerated. To include
+* prototype properties, set the _proto_ parameter to `true`.
+*
+* @method some
+* @param {Object} obj Object to enumerate.
+* @param {Function} fn Function to execute on each enumerable property.
+*   @param {mixed} fn.value Value of the current property.
+*   @param {String} fn.key Key of the current property.
+*   @param {Object} fn.obj Object being enumerated.
+* @param {Object} [thisObj] `this` object to use when calling _fn_.
+* @param {Boolean} [proto=false] Include prototype properties.
+* @return {Boolean} `true` if any execution of _fn_ returns a truthy value,
+*   `false` otherwise.
+* @static
+*/
+O.some = function (obj, fn, thisObj, proto) {
+var key;
+for (key in obj) {
+if (proto || owns(obj, key)) {
+if (fn.call(thisObj || Y, obj[key], key, obj)) {
+return true;
+}
+}
+}
+return false;
+};
+/**
+* Retrieves the sub value at the provided path,
+* from the value object provided.
+*
+* @method getValue
+* @static
+* @param o The object from which to extract the property value.
+* @param path {Array} A path array, specifying the object traversal path
+* from which to obtain the sub value.
+* @return {Any} The value stored in the path, undefined if not found,
+* undefined if the source is not an object.  Returns the source object
+* if an empty path is provided.
+*/
+O.getValue = function(o, path) {
+if (!Lang.isObject(o)) {
+return UNDEFINED;
+}
+var i,
+p = Y.Array(path),
+l = p.length;
+for (i = 0; o !== UNDEFINED && i < l; i++) {
+o = o[p[i]];
+}
+return o;
+};
+/**
+* Sets the sub-attribute value at the provided path on the
+* value object.  Returns the modified value object, or
+* undefined if the path is invalid.
+*
+* @method setValue
+* @static
+* @param o             The object on which to set the sub value.
+* @param path {Array}  A path array, specifying the object traversal path
+*                      at which to set the sub value.
+* @param val {Any}     The new value for the sub-attribute.
+* @return {Object}     The modified object, with the new sub value set, or
+*                      undefined, if the path was invalid.
+*/
+O.setValue = function(o, path, val) {
+var i,
+p = Y.Array(path),
+leafIdx = p.length - 1,
+ref = o;
+if (leafIdx >= 0) {
+for (i = 0; ref !== UNDEFINED && i < leafIdx; i++) {
+ref = ref[p[i]];
+}
+if (ref !== UNDEFINED) {
+ref[p[i]] = val;
+} else {
+return UNDEFINED;
+}
+}
+return o;
+};
+/**
+* Returns `true` if the object has no enumerable properties of its own.
+*
+* @method isEmpty
+* @param {Object} obj An object.
+* @return {Boolean} `true` if the object is empty.
+* @static
+* @since 3.2.0
+*/
+O.isEmpty = function (obj) {
+return !O.keys(Object(obj)).length;
+};
+/**
+* The YUI module contains the components required for building the YUI seed
+* file.  This includes the script loading mechanism, a simple queue, and the
+* core utilities for the library.
+* @module yui
+* @submodule yui-base
+*/
+/**
+* YUI user agent detection.
+* Do not fork for a browser if it can be avoided.  Use feature detection when
+* you can.  Use the user agent as a last resort.  For all fields listed
+* as @type float, UA stores a version number for the browser engine,
+* 0 otherwise.  This value may or may not map to the version number of
+* the browser using the engine.  The value is presented as a float so
+* that it can easily be used for boolean evaluation as well as for
+* looking for a particular range of versions.  Because of this,
+* some of the granularity of the version info may be lost.  The fields that
+* are @type string default to null.  The API docs list the values that
+* these fields can have.
+* @class UA
+* @static
+*/
+/**
+* Static method on `YUI.Env` for parsing a UA string.  Called at instantiation
+* to populate `Y.UA`.
+*
+* @static
+* @method parseUA
+* @param {String} [subUA=navigator.userAgent] UA string to parse
+* @return {Object} The Y.UA object
+*/
+YUI.Env.parseUA = function(subUA) {
+var numberify = function(s) {
+var c = 0;
+return parseFloat(s.replace(/\./g, function() {
+return (c++ === 1) ? '' : '.';
+}));
+},
+win = Y.config.win,
+nav = win && win.navigator,
+o = {
+/**
+* Internet Explorer version number or 0.  Example: 6
+* @property ie
+* @type float
+* @static
+*/
+ie: 0,
+/**
+* Opera version number or 0.  Example: 9.2
+* @property opera
+* @type float
+* @static
+*/
+opera: 0,
+/**
+* Gecko engine revision number.  Will evaluate to 1 if Gecko
+* is detected but the revision could not be found. Other browsers
+* will be 0.  Example: 1.8
+* <pre>
+* Firefox 1.0.0.4: 1.7.8   <-- Reports 1.7
+* Firefox 1.5.0.9: 1.8.0.9 <-- 1.8
+* Firefox 2.0.0.3: 1.8.1.3 <-- 1.81
+* Firefox 3.0   <-- 1.9
+* Firefox 3.5   <-- 1.91
+* </pre>
+* @property gecko
+* @type float
+* @static
+*/
+gecko: 0,
+/**
+* AppleWebKit version.  KHTML browsers that are not WebKit browsers
+* will evaluate to 1, other browsers 0.  Example: 418.9
+* <pre>
+* Safari 1.3.2 (312.6): 312.8.1 <-- Reports 312.8 -- currently the
+*                                   latest available for Mac OSX 10.3.
+* Safari 2.0.2:         416     <-- hasOwnProperty introduced
+* Safari 2.0.4:         418     <-- preventDefault fixed
+* Safari 2.0.4 (419.3): 418.9.1 <-- One version of Safari may run
+*                                   different versions of webkit
+* Safari 2.0.4 (419.3): 419     <-- Tiger installations that have been
+*                                   updated, but not updated
+*                                   to the latest patch.
+* Webkit 212 nightly:   522+    <-- Safari 3.0 precursor (with native
+* SVG and many major issues fixed).
+* Safari 3.0.4 (523.12) 523.12  <-- First Tiger release - automatic
+* update from 2.x via the 10.4.11 OS patch.
+* Webkit nightly 1/2008:525+    <-- Supports DOMContentLoaded event.
+*                                   yahoo.com user agent hack removed.
+* </pre>
+* http://en.wikipedia.org/wiki/Safari_version_history
+* @property webkit
+* @type float
+* @static
+*/
+webkit: 0,
+/**
+* Safari will be detected as webkit, but this property will also
+* be populated with the Safari version number
+* @property safari
+* @type float
+* @static
+*/
+safari: 0,
+/**
+* Chrome will be detected as webkit, but this property will also
+* be populated with the Chrome version number
+* @property chrome
+* @type float
+* @static
+*/
+chrome: 0,
+/**
+* The mobile property will be set to a string containing any relevant
+* user agent information when a modern mobile browser is detected.
+* Currently limited to Safari on the iPhone/iPod Touch, Nokia N-series
+* devices with the WebKit-based browser, and Opera Mini.
+* @property mobile
+* @type string
+* @default null
+* @static
+*/
+mobile: null,
+/**
+* Adobe AIR version number or 0.  Only populated if webkit is detected.
+* Example: 1.0
+* @property air
+* @type float
+*/
+air: 0,
+/**
+* PhantomJS version number or 0.  Only populated if webkit is detected.
+* Example: 1.0
+* @property phantomjs
+* @type float
+*/
+phantomjs: 0,
+/**
+* Detects Apple iPad's OS version
+* @property ipad
+* @type float
+* @static
+*/
+ipad: 0,
+/**
+* Detects Apple iPhone's OS version
+* @property iphone
+* @type float
+* @static
+*/
+iphone: 0,
+/**
+* Detects Apples iPod's OS version
+* @property ipod
+* @type float
+* @static
+*/
+ipod: 0,
+/**
+* General truthy check for iPad, iPhone or iPod
+* @property ios
+* @type Boolean
+* @default null
+* @static
+*/
+ios: null,
+/**
+* Detects Googles Android OS version
+* @property android
+* @type float
+* @static
+*/
+android: 0,
+/**
+* Detects Kindle Silk
+* @property silk
+* @type float
+* @static
+*/
+silk: 0,
+/**
+* Detects Kindle Silk Acceleration
+* @property accel
+* @type Boolean
+* @static
+*/
+accel: false,
+/**
+* Detects Palms WebOS version
+* @property webos
+* @type float
+* @static
+*/
+webos: 0,
+/**
+* Google Caja version number or 0.
+* @property caja
+* @type float
+*/
+caja: nav && nav.cajaVersion,
+/**
+* Set to true if the page appears to be in SSL
+* @property secure
+* @type boolean
+* @static
+*/
+secure: false,
+/**
+* The operating system.  Currently only detecting windows or macintosh
+* @property os
+* @type string
+* @default null
+* @static
+*/
+os: null,
+/**
+* The Nodejs Version
+* @property nodejs
+* @type float
+* @default 0
+* @static
+*/
+nodejs: 0,
+/**
+* Window8/IE10 Application host environment
+* @property winjs
+* @type Boolean
+* @static
+*/
+winjs: !!((typeof Windows !== "undefined") && Windows.System),
+/**
+* Are touch/msPointer events available on this device
+* @property touchEnabled
+* @type Boolean
+* @static
+*/
+touchEnabled: false
+},
+ua = subUA || nav && nav.userAgent,
+loc = win && win.location,
+href = loc && loc.href,
+m;
+/**
+* The User Agent string that was parsed
+* @property userAgent
+* @type String
+* @static
+*/
+o.userAgent = ua;
+o.secure = href && (href.toLowerCase().indexOf('https') === 0);
+if (ua) {
+if ((/windows|win32/i).test(ua)) {
+o.os = 'windows';
+} else if ((/macintosh|mac_powerpc/i).test(ua)) {
+o.os = 'macintosh';
+} else if ((/android/i).test(ua)) {
+o.os = 'android';
+} else if ((/symbos/i).test(ua)) {
+o.os = 'symbos';
+} else if ((/linux/i).test(ua)) {
+o.os = 'linux';
+} else if ((/rhino/i).test(ua)) {
+o.os = 'rhino';
+}
+// Modern KHTML browsers should qualify as Safari X-Grade
+if ((/KHTML/).test(ua)) {
+o.webkit = 1;
+}
+if ((/IEMobile|XBLWP7/).test(ua)) {
+o.mobile = 'windows';
+}
+if ((/Fennec/).test(ua)) {
+o.mobile = 'gecko';
+}
+// Modern WebKit browsers are at least X-Grade
+m = ua.match(/AppleWebKit\/([^\s]*)/);
+if (m && m[1]) {
+o.webkit = numberify(m[1]);
+o.safari = o.webkit;
+if (/PhantomJS/.test(ua)) {
+m = ua.match(/PhantomJS\/([^\s]*)/);
+if (m && m[1]) {
+o.phantomjs = numberify(m[1]);
+}
+}
+// Mobile browser check
+if (/ Mobile\//.test(ua) || (/iPad|iPod|iPhone/).test(ua)) {
+o.mobile = 'Apple'; // iPhone or iPod Touch
+m = ua.match(/OS ([^\s]*)/);
+if (m && m[1]) {
+m = numberify(m[1].replace('_', '.'));
+}
+o.ios = m;
+o.os = 'ios';
+o.ipad = o.ipod = o.iphone = 0;
+m = ua.match(/iPad|iPod|iPhone/);
+if (m && m[0]) {
+o[m[0].toLowerCase()] = o.ios;
+}
+} else {
+m = ua.match(/NokiaN[^\/]*|webOS\/\d\.\d/);
+if (m) {
+// Nokia N-series, webOS, ex: NokiaN95
+o.mobile = m[0];
+}
+if (/webOS/.test(ua)) {
+o.mobile = 'WebOS';
+m = ua.match(/webOS\/([^\s]*);/);
+if (m && m[1]) {
+o.webos = numberify(m[1]);
+}
+}
+if (/ Android/.test(ua)) {
+if (/Mobile/.test(ua)) {
+o.mobile = 'Android';
+}
+m = ua.match(/Android ([^\s]*);/);
+if (m && m[1]) {
+o.android = numberify(m[1]);
+}
+}
+if (/Silk/.test(ua)) {
+m = ua.match(/Silk\/([^\s]*)/);
+if (m && m[1]) {
+o.silk = numberify(m[1]);
+}
+if (!o.android) {
+o.android = 2.34; //Hack for desktop mode in Kindle
+o.os = 'Android';
+}
+if (/Accelerated=true/.test(ua)) {
+o.accel = true;
+}
+}
+}
+m = ua.match(/OPR\/(\d+\.\d+)/);
+if (m && m[1]) {
+// Opera 15+ with Blink (pretends to be both Chrome and Safari)
+o.opera = numberify(m[1]);
+} else {
+m = ua.match(/(Chrome|CrMo|CriOS)\/([^\s]*)/);
+if (m && m[1] && m[2]) {
+o.chrome = numberify(m[2]); // Chrome
+o.safari = 0; //Reset safari back to 0
+if (m[1] === 'CrMo') {
+o.mobile = 'chrome';
+}
+} else {
+m = ua.match(/AdobeAIR\/([^\s]*)/);
+if (m) {
+o.air = m[0]; // Adobe AIR 1.0 or better
+}
+}
+}
+}
+if (!o.webkit) { // not webkit
+// @todo check Opera/8.01 (J2ME/MIDP; Opera Mini/2.0.4509/1316; fi; U; ssr)
+if (/Opera/.test(ua)) {
+m = ua.match(/Opera[\s\/]([^\s]*)/);
+if (m && m[1]) {
+o.opera = numberify(m[1]);
+}
+m = ua.match(/Version\/([^\s]*)/);
+if (m && m[1]) {
+o.opera = numberify(m[1]); // opera 10+
+}
+if (/Opera Mobi/.test(ua)) {
+o.mobile = 'opera';
+m = ua.replace('Opera Mobi', '').match(/Opera ([^\s]*)/);
+if (m && m[1]) {
+o.opera = numberify(m[1]);
+}
+}
+m = ua.match(/Opera Mini[^;]*/);
+if (m) {
+o.mobile = m[0]; // ex: Opera Mini/2.0.4509/1316
+}
+} else { // not opera or webkit
+m = ua.match(/MSIE ([^;]*)|Trident.*; rv:([0-9.]+)/);
+if (m && (m[1] || m[2])) {
+o.ie = numberify(m[1] || m[2]);
+} else { // not opera, webkit, or ie
+m = ua.match(/Gecko\/([^\s]*)/);
+if (m) {
+o.gecko = 1; // Gecko detected, look for revision
+m = ua.match(/rv:([^\s\)]*)/);
+if (m && m[1]) {
+o.gecko = numberify(m[1]);
+if (/Mobile|Tablet/.test(ua)) {
+o.mobile = "ffos";
+}
+}
+}
+}
+}
+}
+}
+//Check for known properties to tell if touch events are enabled on this device or if
+//the number of MSPointer touchpoints on this device is greater than 0.
+if (win && nav && !(o.chrome && o.chrome < 6)) {
+o.touchEnabled = (("ontouchstart" in win) || (("msMaxTouchPoints" in nav) && (nav.msMaxTouchPoints > 0)));
+}
+//It was a parsed UA, do not assign the global value.
+if (!subUA) {
+if (typeof process === 'object') {
+if (process.versions && process.versions.node) {
+//NodeJS
+o.os = process.platform;
+o.nodejs = numberify(process.versions.node);
+}
+}
+YUI.Env.UA = o;
+}
+return o;
+};
+Y.UA = YUI.Env.UA || YUI.Env.parseUA();
+/**
+Performs a simple comparison between two version numbers, accounting for
+standard versioning logic such as the fact that "535.8" is a lower version than
+"535.24", even though a simple numerical comparison would indicate that it's
+greater. Also accounts for cases such as "1.1" vs. "1.1.0", which are
+considered equivalent.
+Returns -1 if version _a_ is lower than version _b_, 0 if they're equivalent,
+1 if _a_ is higher than _b_.
+Versions may be numbers or strings containing numbers and dots. For example,
+both `535` and `"535.8.10"` are acceptable. A version string containing
+non-numeric characters, like `"535.8.beta"`, may produce unexpected results.
+@method compareVersions
+@param {Number|String} a First version number to compare.
+@param {Number|String} b Second version number to compare.
+@return -1 if _a_ is lower than _b_, 0 if they're equivalent, 1 if _a_ is
+higher than _b_.
+**/
+Y.UA.compareVersions = function (a, b) {
+var aPart, aParts, bPart, bParts, i, len;
+if (a === b) {
+return 0;
+}
+aParts = (a + '').split('.');
+bParts = (b + '').split('.');
+for (i = 0, len = Math.max(aParts.length, bParts.length); i < len; ++i) {
+aPart = parseInt(aParts[i], 10);
+bPart = parseInt(bParts[i], 10);
+/*jshint expr: true*/
+isNaN(aPart) && (aPart = 0);
+isNaN(bPart) && (bPart = 0);
+if (aPart < bPart) {
+return -1;
+}
+if (aPart > bPart) {
+return 1;
+}
+}
+return 0;
+};
+YUI.Env.aliases = {
+"anim": ["anim-base","anim-color","anim-curve","anim-easing","anim-node-plugin","anim-scroll","anim-xy"],
+"anim-shape-transform": ["anim-shape"],
+"app": ["app-base","app-content","app-transitions","lazy-model-list","model","model-list","model-sync-rest","model-sync-local","router","view","view-node-map"],
+"attribute": ["attribute-base","attribute-complex"],
+"attribute-events": ["attribute-observable"],
+"autocomplete": ["autocomplete-base","autocomplete-sources","autocomplete-list","autocomplete-plugin"],
+"axes": ["axis-numeric","axis-category","axis-time","axis-stacked"],
+"axes-base": ["axis-numeric-base","axis-category-base","axis-time-base","axis-stacked-base"],
+"base": ["base-base","base-pluginhost","base-build"],
+"cache": ["cache-base","cache-offline","cache-plugin"],
+"charts": ["charts-base"],
+"collection": ["array-extras","arraylist","arraylist-add","arraylist-filter","array-invoke"],
+"color": ["color-base","color-hsl","color-harmony"],
+"controller": ["router"],
+"dataschema": ["dataschema-base","dataschema-json","dataschema-xml","dataschema-array","dataschema-text"],
+"datasource": ["datasource-local","datasource-io","datasource-get","datasource-function","datasource-cache","datasource-jsonschema","datasource-xmlschema","datasource-arrayschema","datasource-textschema","datasource-polling"],
+"datatable": ["datatable-core","datatable-table","datatable-head","datatable-body","datatable-base","datatable-column-widths","datatable-message","datatable-mutable","datatable-sort","datatable-datasource"],
+"datatype": ["datatype-date","datatype-number","datatype-xml"],
+"datatype-date": ["datatype-date-parse","datatype-date-format","datatype-date-math"],
+"datatype-number": ["datatype-number-parse","datatype-number-format"],
+"datatype-xml": ["datatype-xml-parse","datatype-xml-format"],
+"dd": ["dd-ddm-base","dd-ddm","dd-ddm-drop","dd-drag","dd-proxy","dd-constrain","dd-drop","dd-scroll","dd-delegate"],
+"dom": ["dom-base","dom-screen","dom-style","selector-native","selector"],
+"editor": ["frame","editor-selection","exec-command","editor-base","editor-para","editor-br","editor-bidi","editor-tab","createlink-base"],
+"event": ["event-base","event-delegate","event-synthetic","event-mousewheel","event-mouseenter","event-key","event-focus","event-resize","event-hover","event-outside","event-touch","event-move","event-flick","event-valuechange","event-tap"],
+"event-custom": ["event-custom-base","event-custom-complex"],
+"event-gestures": ["event-flick","event-move"],
+"handlebars": ["handlebars-compiler"],
+"highlight": ["highlight-base","highlight-accentfold"],
+"history": ["history-base","history-hash","history-html5"],
+"io": ["io-base","io-xdr","io-form","io-upload-iframe","io-queue"],
+"json": ["json-parse","json-stringify"],
+"loader": ["loader-base","loader-rollup","loader-yui3"],
+"node": ["node-base","node-event-delegate","node-pluginhost","node-screen","node-style"],
+"pluginhost": ["pluginhost-base","pluginhost-config"],
+"querystring": ["querystring-parse","querystring-stringify"],
+"recordset": ["recordset-base","recordset-sort","recordset-filter","recordset-indexer"],
+"resize": ["resize-base","resize-proxy","resize-constrain"],
+"slider": ["slider-base","slider-value-range","clickable-rail","range-slider"],
+"template": ["template-base","template-micro"],
+"text": ["text-accentfold","text-wordbreak"],
+"widget": ["widget-base","widget-htmlparser","widget-skin","widget-uievents"]
+};
+}, '@VERSION@', {"use": ["get", "features", "intl-base", "yui-log", "yui-later"]});
+YUI.add('get', function (Y, NAME) {
+/*jslint boss:true, expr:true, laxbreak: true */
+/**
+Provides dynamic loading of remote JavaScript and CSS resources.
+@module get
+@class Get
+@static
+**/
+var Lang = Y.Lang,
+CUSTOM_ATTRS, // defined lazily in Y.Get.Transaction._createNode()
+Get, Transaction;
+Y.Get = Get = {
+// -- Public Properties ----------------------------------------------------
+/**
+Default options for CSS requests. Options specified here will override
+global defaults for CSS requests.
+See the `options` property for all available options.
+@property cssOptions
+@type Object
+@static
+@since 3.5.0
+**/
+cssOptions: {
+attributes: {
+rel: 'stylesheet'
+},
+doc         : Y.config.linkDoc || Y.config.doc,
+pollInterval: 50
+},
+/**
+Default options for JS requests. Options specified here will override global
+defaults for JS requests.
+See the `options` property for all available options.
+@property jsOptions
+@type Object
+@static
+@since 3.5.0
+**/
+jsOptions: {
+autopurge: true,
+doc      : Y.config.scriptDoc || Y.config.doc
+},
+/**
+Default options to use for all requests.
+Note that while all available options are documented here for ease of
+discovery, some options (like callback functions) only make sense at the
+transaction level.
+Callback functions specified via the options object or the `options`
+parameter of the `css()`, `js()`, or `load()` methods will receive the
+transaction object as a parameter. See `Y.Get.Transaction` for details on
+the properties and methods available on transactions.
+@static
+@since 3.5.0
+@property {Object} options
+@property {Boolean} [options.async=false] Whether or not to load scripts
+asynchronously, meaning they're requested in parallel and execution
+order is not guaranteed. Has no effect on CSS, since CSS is always
+loaded asynchronously.
+@property {Object} [options.attributes] HTML attribute name/value pairs that
+should be added to inserted nodes. By default, the `charset` attribute
+will be set to "utf-8" and nodes will be given an auto-generated `id`
+attribute, but you can override these with your own values if desired.
+@property {Boolean} [options.autopurge] Whether or not to automatically
+purge inserted nodes after the purge threshold is reached. This is
+`true` by default for JavaScript, but `false` for CSS since purging a
+CSS node will also remove any styling applied by the referenced file.
+@property {Object} [options.context] `this` object to use when calling
+callback functions. Defaults to the transaction object.
+@property {Mixed} [options.data] Arbitrary data object to pass to "on*"
+callbacks.
+@property {Document} [options.doc] Document into which nodes should be
+inserted. By default, the current document is used.
+@property {HTMLElement|String} [options.insertBefore] HTML element or id
+string of an element before which all generated nodes should be
+inserted. If not specified, Get will automatically determine the best
+place to insert nodes for maximum compatibility.
+@property {Function} [options.onEnd] Callback to execute after a transaction
+is complete, regardless of whether it succeeded or failed.
+@property {Function} [options.onFailure] Callback to execute after a
+transaction fails, times out, or is aborted.
+@property {Function} [options.onProgress] Callback to execute after each
+individual request in a transaction either succeeds or fails.
+@property {Function} [options.onSuccess] Callback to execute after a
+transaction completes successfully with no errors. Note that in browsers
+that don't support the `error` event on CSS `<link>` nodes, a failed CSS
+request may still be reported as a success because in these browsers
+it can be difficult or impossible to distinguish between success and
+failure for CSS resources.
+@property {Function} [options.onTimeout] Callback to execute after a
+transaction times out.
+@property {Number} [options.pollInterval=50] Polling interval (in
+milliseconds) for detecting CSS load completion in browsers that don't
+support the `load` event on `<link>` nodes. This isn't used for
+JavaScript.
+@property {Number} [options.purgethreshold=20] Number of nodes to insert
+before triggering an automatic purge when `autopurge` is `true`.
+@property {Number} [options.timeout] Number of milliseconds to wait before
+aborting a transaction. When a timeout occurs, the `onTimeout` callback
+is called, followed by `onFailure` and finally `onEnd`. By default,
+there is no timeout.
+@property {String} [options.type] Resource type ("css" or "js"). This option
+is set automatically by the `css()` and `js()` functions and will be
+ignored there, but may be useful when using the `load()` function. If
+not specified, the type will be inferred from the URL, defaulting to
+"js" if the URL doesn't contain a recognizable file extension.
+**/
+options: {
+attributes: {
+charset: 'utf-8'
+},
+purgethreshold: 20
+},
+// -- Protected Properties -------------------------------------------------
+/**
+Regex that matches a CSS URL. Used to guess the file type when it's not
+specified.
+@property REGEX_CSS
+@type RegExp
+@final
+@protected
+@static
+@since 3.5.0
+**/
+REGEX_CSS: /\.css(?:[?;].*)?$/i,
+/**
+Regex that matches a JS URL. Used to guess the file type when it's not
+specified.
+@property REGEX_JS
+@type RegExp
+@final
+@protected
+@static
+@since 3.5.0
+**/
+REGEX_JS : /\.js(?:[?;].*)?$/i,
+/**
+Contains information about the current environment, such as what script and
+link injection features it supports.
+This object is created and populated the first time the `_getEnv()` method
+is called.
+@property _env
+@type Object
+@protected
+@static
+@since 3.5.0
+**/
+/**
+Mapping of document _yuid strings to <head> or <base> node references so we
+don't have to look the node up each time we want to insert a request node.
+@property _insertCache
+@type Object
+@protected
+@static
+@since 3.5.0
+**/
+_insertCache: {},
+/**
+Information about the currently pending transaction, if any.
+This is actually an object with two properties: `callback`, containing the
+optional callback passed to `css()`, `load()`, or `js()`; and `transaction`,
+containing the actual transaction instance.
+@property _pending
+@type Object
+@protected
+@static
+@since 3.5.0
+**/
+_pending: null,
+/**
+HTML nodes eligible to be purged next time autopurge is triggered.
+@property _purgeNodes
+@type HTMLElement[]
+@protected
+@static
+@since 3.5.0
+**/
+_purgeNodes: [],
+/**
+Queued transactions and associated callbacks.
+@property _queue
+@type Object[]
+@protected
+@static
+@since 3.5.0
+**/
+_queue: [],
+// -- Public Methods -------------------------------------------------------
+/**
+Aborts the specified transaction.
+This will cause the transaction's `onFailure` callback to be called and
+will prevent any new script and link nodes from being added to the document,
+but any resources that have already been requested will continue loading
+(there's no safe way to prevent this, unfortunately).
+*Note:* This method is deprecated as of 3.5.0, and will be removed in a
+future version of YUI. Use the transaction-level `abort()` method instead.
+@method abort
+@param {Get.Transaction} transaction Transaction to abort.
+@deprecated Use the `abort()` method on the transaction instead.
+@static
+**/
+abort: function (transaction) {
+var i, id, item, len, pending;
+Y.log('`Y.Get.abort()` is deprecated as of 3.5.0. Use the `abort()` method on the transaction instead.', 'warn', 'get');
+if (!transaction.abort) {
+id          = transaction;
+pending     = this._pending;
+transaction = null;
+if (pending && pending.transaction.id === id) {
+transaction   = pending.transaction;
+this._pending = null;
+} else {
+for (i = 0, len = this._queue.length; i < len; ++i) {
+item = this._queue[i].transaction;
+if (item.id === id) {
+transaction = item;
+this._queue.splice(i, 1);
+break;
+}
+}
+}
+}
+transaction && transaction.abort();
+},
+/**
+Loads one or more CSS files.
+The _urls_ parameter may be provided as a URL string, a request object,
+or an array of URL strings and/or request objects.
+A request object is just an object that contains a `url` property and zero
+or more options that should apply specifically to that request.
+Request-specific options take priority over transaction-level options and
+default options.
+URLs may be relative or absolute, and do not have to have the same origin
+as the current page.
+The `options` parameter may be omitted completely and a callback passed in
+its place, if desired.
+@example
+// Load a single CSS file and log a message on completion.
+Y.Get.css('foo.css', function (err) {
+if (err) {
+Y.log('foo.css failed to load!');
+} else {
+Y.log('foo.css was loaded successfully');
+}
+});
+// Load multiple CSS files and log a message when all have finished
+// loading.
+var urls = ['foo.css', 'http://example.com/bar.css', 'baz/quux.css'];
+Y.Get.css(urls, function (err) {
+if (err) {
+Y.log('one or more files failed to load!');
+} else {
+Y.log('all files loaded successfully');
+}
+});
+// Specify transaction-level options, which will apply to all requests
+// within the transaction.
+Y.Get.css(urls, {
+attributes: {'class': 'my-css'},
+timeout   : 5000
+});
+// Specify per-request options, which override transaction-level and
+// default options.
+Y.Get.css([
+{url: 'foo.css', attributes: {id: 'foo'}},
+{url: 'bar.css', attributes: {id: 'bar', charset: 'iso-8859-1'}}
+]);
+@method css
+@param {String|Object|Array} urls URL string, request object, or array
+of URLs and/or request objects to load.
+@param {Object} [options] Options for this transaction. See the
+`Y.Get.options` property for a complete list of available options.
+@param {Function} [callback] Callback function to be called on completion.
+This is a general callback and will be called before any more granular
+callbacks (`onSuccess`, `onFailure`, etc.) specified in the `options`
+object.
+@param {Array|null} callback.err Array of errors that occurred during
+the transaction, or `null` on success.
+@param {Get.Transaction} callback.transaction Transaction object.
+@return {Get.Transaction} Transaction object.
+@static
+**/
+css: function (urls, options, callback) {
+return this._load('css', urls, options, callback);
+},
+/**
+Loads one or more JavaScript resources.
+The _urls_ parameter may be provided as a URL string, a request object,
+or an array of URL strings and/or request objects.
+A request object is just an object that contains a `url` property and zero
+or more options that should apply specifically to that request.
+Request-specific options take priority over transaction-level options and
+default options.
+URLs may be relative or absolute, and do not have to have the same origin
+as the current page.
+The `options` parameter may be omitted completely and a callback passed in
+its place, if desired.
+Scripts will be executed in the order they're specified unless the `async`
+option is `true`, in which case they'll be loaded in parallel and executed
+in whatever order they finish loading.
+@example
+// Load a single JS file and log a message on completion.
+Y.Get.js('foo.js', function (err) {
+if (err) {
+Y.log('foo.js failed to load!');
+} else {
+Y.log('foo.js was loaded successfully');
+}
+});
+// Load multiple JS files, execute them in order, and log a message when
+// all have finished loading.
+var urls = ['foo.js', 'http://example.com/bar.js', 'baz/quux.js'];
+Y.Get.js(urls, function (err) {
+if (err) {
+Y.log('one or more files failed to load!');
+} else {
+Y.log('all files loaded successfully');
+}
+});
+// Specify transaction-level options, which will apply to all requests
+// within the transaction.
+Y.Get.js(urls, {
+attributes: {'class': 'my-js'},
+timeout   : 5000
+});
+// Specify per-request options, which override transaction-level and
+// default options.
+Y.Get.js([
+{url: 'foo.js', attributes: {id: 'foo'}},
+{url: 'bar.js', attributes: {id: 'bar', charset: 'iso-8859-1'}}
+]);
+@method js
+@param {String|Object|Array} urls URL string, request object, or array
+of URLs and/or request objects to load.
+@param {Object} [options] Options for this transaction. See the
+`Y.Get.options` property for a complete list of available options.
+@param {Function} [callback] Callback function to be called on completion.
+This is a general callback and will be called before any more granular
+callbacks (`onSuccess`, `onFailure`, etc.) specified in the `options`
+object.
+@param {Array|null} callback.err Array of errors that occurred during
+the transaction, or `null` on success.
+@param {Get.Transaction} callback.transaction Transaction object.
+@return {Get.Transaction} Transaction object.
+@since 3.5.0
+@static
+**/
+js: function (urls, options, callback) {
+return this._load('js', urls, options, callback);
+},
+/**
+Loads one or more CSS and/or JavaScript resources in the same transaction.
+Use this method when you want to load both CSS and JavaScript in a single
+transaction and be notified when all requested URLs have finished loading,
+regardless of type.
+Behavior and options are the same as for the `css()` and `js()` methods. If
+a resource type isn't specified in per-request options or transaction-level
+options, Get will guess the file type based on the URL's extension (`.css`
+or `.js`, with or without a following query string). If the file type can't
+be guessed from the URL, a warning will be logged and Get will assume the
+URL is a JavaScript resource.
+@example
+// Load both CSS and JS files in a single transaction, and log a message
+// when all files have finished loading.
+Y.Get.load(['foo.css', 'bar.js', 'baz.css'], function (err) {
+if (err) {
+Y.log('one or more files failed to load!');
+} else {
+Y.log('all files loaded successfully');
+}
+});
+@method load
+@param {String|Object|Array} urls URL string, request object, or array
+of URLs and/or request objects to load.
+@param {Object} [options] Options for this transaction. See the
+`Y.Get.options` property for a complete list of available options.
+@param {Function} [callback] Callback function to be called on completion.
+This is a general callback and will be called before any more granular
+callbacks (`onSuccess`, `onFailure`, etc.) specified in the `options`
+object.
+@param {Array|null} err Array of errors that occurred during the
+transaction, or `null` on success.
+@param {Get.Transaction} Transaction object.
+@return {Get.Transaction} Transaction object.
+@since 3.5.0
+@static
+**/
+load: function (urls, options, callback) {
+return this._load(null, urls, options, callback);
+},
+// -- Protected Methods ----------------------------------------------------
+/**
+Triggers an automatic purge if the purge threshold has been reached.
+@method _autoPurge
+@param {Number} threshold Purge threshold to use, in milliseconds.
+@protected
+@since 3.5.0
+@static
+**/
+_autoPurge: function (threshold) {
+if (threshold && this._purgeNodes.length >= threshold) {
+Y.log('autopurge triggered after ' + this._purgeNodes.length + ' nodes', 'info', 'get');
+this._purge(this._purgeNodes);
+}
+},
+/**
+Populates the `_env` property with information about the current
+environment.
+@method _getEnv
+@return {Object} Environment information.
+@protected
+@since 3.5.0
+@static
+**/
+_getEnv: function () {
+var doc = Y.config.doc,
+ua  = Y.UA;
+// Note: some of these checks require browser sniffs since it's not
+// feasible to load test files on every pageview just to perform a
+// feature test. I'm sorry if this makes you sad.
+return (this._env = {
+// True if this is a browser that supports disabling async mode on
+// dynamically created script nodes. See
+// https://developer.mozilla.org/En/HTML/Element/Script#Attributes
+// IE10 doesn't return true for the MDN feature test, so setting it explicitly,
+// because it is async by default, and allows you to disable async by setting it to false
+async: (doc && doc.createElement('script').async === true) || (ua.ie >= 10),
+// True if this browser fires an event when a dynamically injected
+// link node fails to load. This is currently true for Firefox 9+
+// and WebKit 535.24+
+cssFail: ua.gecko >= 9 || ua.compareVersions(ua.webkit, 535.24) >= 0,
+// True if this browser fires an event when a dynamically injected
+// link node finishes loading. This is currently true for IE, Opera,
+// Firefox 9+, and WebKit 535.24+. Note that IE versions <9 fire the
+// DOM 0 "onload" event, but not "load". All versions of IE fire
+// "onload".
+// davglass: Seems that Chrome on Android needs this to be false.
+cssLoad: (
+(!ua.gecko && !ua.webkit) || ua.gecko >= 9 ||
+ua.compareVersions(ua.webkit, 535.24) >= 0
+) && !(ua.chrome && ua.chrome <= 18),
+// True if this browser preserves script execution order while
+// loading scripts in parallel as long as the script node's `async`
+// attribute is set to false to explicitly disable async execution.
+preservesScriptOrder: !!(ua.gecko || ua.opera || (ua.ie && ua.ie >= 10))
+});
+},
+_getTransaction: function (urls, options) {
+var requests = [],
+i, len, req, url;
+if (!Lang.isArray(urls)) {
+urls = [urls];
+}
+options = Y.merge(this.options, options);
+// Clone the attributes object so we don't end up modifying it by ref.
+options.attributes = Y.merge(this.options.attributes,
+options.attributes);
+for (i = 0, len = urls.length; i < len; ++i) {
+url = urls[i];
+req = {attributes: {}};
+// If `url` is a string, we create a URL object for it, then mix in
+// global options and request-specific options. If it's an object
+// with a "url" property, we assume it's a request object containing
+// URL-specific options.
+if (typeof url === 'string') {
+req.url = url;
+} else if (url.url) {
+// URL-specific options override both global defaults and
+// request-specific options.
+Y.mix(req, url, false, null, 0, true);
+url = url.url; // Make url a string so we can use it later.
+} else {
+Y.log('URL must be a string or an object with a `url` property.', 'error', 'get');
+continue;
+}
+Y.mix(req, options, false, null, 0, true);
+// If we didn't get an explicit type for this URL either in the
+// request options or the URL-specific options, try to determine
+// one from the file extension.
+if (!req.type) {
+if (this.REGEX_CSS.test(url)) {
+req.type = 'css';
+} else {
+if (!this.REGEX_JS.test(url)) {
+Y.log("Can't guess file type from URL. Assuming JS: " + url, 'warn', 'get');
+}
+req.type = 'js';
+}
+}
+// Mix in type-specific default options, but don't overwrite any
+// options that have already been set.
+Y.mix(req, req.type === 'js' ? this.jsOptions : this.cssOptions,
+false, null, 0, true);
+// Give the node an id attribute if it doesn't already have one.
+req.attributes.id || (req.attributes.id = Y.guid());
+// Backcompat for <3.5.0 behavior.
+if (req.win) {
+Y.log('The `win` option is deprecated as of 3.5.0. Use `doc` instead.', 'warn', 'get');
+req.doc = req.win.document;
+} else {
+req.win = req.doc.defaultView || req.doc.parentWindow;
+}
+if (req.charset) {
+Y.log('The `charset` option is deprecated as of 3.5.0. Set `attributes.charset` instead.', 'warn', 'get');
+req.attributes.charset = req.charset;
+}
+requests.push(req);
+}
+return new Transaction(requests, options);
+},
+_load: function (type, urls, options, callback) {
+var transaction;
+// Allow callback as third param.
+if (typeof options === 'function') {
+callback = options;
+options  = {};
+}
+options || (options = {});
+options.type = type;
+options._onFinish = Get._onTransactionFinish;
+if (!this._env) {
+this._getEnv();
+}
+transaction = this._getTransaction(urls, options);
+this._queue.push({
+callback   : callback,
+transaction: transaction
+});
+this._next();
+return transaction;
+},
+_onTransactionFinish : function() {
+Get._pending = null;
+Get._next();
+},
+_next: function () {
+var item;
+if (this._pending) {
+return;
+}
+item = this._queue.shift();
+if (item) {
+this._pending = item;
+item.transaction.execute(item.callback);
+}
+},
+_purge: function (nodes) {
+var purgeNodes    = this._purgeNodes,
+isTransaction = nodes !== purgeNodes,
+index, node;
+while (node = nodes.pop()) { // assignment
+// Don't purge nodes that haven't finished loading (or errored out),
+// since this can hang the transaction.
+if (!node._yuiget_finished) {
+continue;
+}
+node.parentNode && node.parentNode.removeChild(node);
+// If this is a transaction-level purge and this node also exists in
+// the Get-level _purgeNodes array, we need to remove it from
+// _purgeNodes to avoid creating a memory leak. The indexOf lookup
+// sucks, but until we get WeakMaps, this is the least troublesome
+// way to do this (we can't just hold onto node ids because they may
+// not be in the same document).
+if (isTransaction) {
+index = Y.Array.indexOf(purgeNodes, node);
+if (index > -1) {
+purgeNodes.splice(index, 1);
+}
+}
+}
+}
+};
+/**
+Alias for `js()`.
+@method script
+@static
+**/
+Get.script = Get.js;
+/**
+Represents a Get transaction, which may contain requests for one or more JS or
+CSS files.
+This class should not be instantiated manually. Instances will be created and
+returned as needed by Y.Get's `css()`, `js()`, and `load()` methods.
+@class Get.Transaction
+@constructor
+@since 3.5.0
+**/
+Get.Transaction = Transaction = function (requests, options) {
+var self = this;
+self.id       = Transaction._lastId += 1;
+self.data     = options.data;
+self.errors   = [];
+self.nodes    = [];
+self.options  = options;
+self.requests = requests;
+self._callbacks = []; // callbacks to call after execution finishes
+self._queue     = [];
+self._reqsWaiting   = 0;
+// Deprecated pre-3.5.0 properties.
+self.tId = self.id; // Use `id` instead.
+self.win = options.win || Y.config.win;
+};
+/**
+Arbitrary data object associated with this transaction.
+This object comes from the options passed to `Get.css()`, `Get.js()`, or
+`Get.load()`, and will be `undefined` if no data object was specified.
+@property {Object} data
+**/
+/**
+Array of errors that have occurred during this transaction, if any. Each error
+object has the following properties:
+`errors.error`: Error message.
+`errors.request`: Request object related to the error.
+@since 3.5.0
+@property {Object[]} errors
+**/
+/**
+Numeric id for this transaction, unique among all transactions within the same
+YUI sandbox in the current pageview.
+@property {Number} id
+@since 3.5.0
+**/
+/**
+HTMLElement nodes (native ones, not YUI Node instances) that have been inserted
+during the current transaction.
+@property {HTMLElement[]} nodes
+**/
+/**
+Options associated with this transaction.
+See `Get.options` for the full list of available options.
+@property {Object} options
+@since 3.5.0
+**/
+/**
+Request objects contained in this transaction. Each request object represents
+one CSS or JS URL that will be (or has been) requested and loaded into the page.
+@property {Object} requests
+@since 3.5.0
+**/
+/**
+Id of the most recent transaction.
+@property _lastId
+@type Number
+@protected
+@static
+**/
+Transaction._lastId = 0;
+Transaction.prototype = {
+// -- Public Properties ----------------------------------------------------
+/**
+Current state of this transaction. One of "new", "executing", or "done".
+@property _state
+@type String
+@protected
+**/
+_state: 'new', // "new", "executing", or "done"
+// -- Public Methods -------------------------------------------------------
+/**
+Aborts this transaction.
+This will cause the transaction's `onFailure` callback to be called and
+will prevent any new script and link nodes from being added to the document,
+but any resources that have already been requested will continue loading
+(there's no safe way to prevent this, unfortunately).
+@method abort
+@param {String} [msg="Aborted."] Optional message to use in the `errors`
+array describing why the transaction was aborted.
+**/
+abort: function (msg) {
+this._pending    = null;
+this._pendingCSS = null;
+this._pollTimer  = clearTimeout(this._pollTimer);
+this._queue      = [];
+this._reqsWaiting    = 0;
+this.errors.push({error: msg || 'Aborted'});
+this._finish();
+},
+/**
+Begins execting the transaction.
+There's usually no reason to call this manually, since Get will call it
+automatically when other pending transactions have finished. If you really
+want to execute your transaction before Get does, you can, but be aware that
+this transaction's scripts may end up executing before the scripts in other
+pending transactions.
+If the transaction is already executing, the specified callback (if any)
+will be queued and called after execution finishes. If the transaction has
+already finished, the callback will be called immediately (the transaction
+will not be executed again).
+@method execute
+@param {Function} callback Callback function to execute after all requests
+in the transaction are complete, or after the transaction is aborted.
+**/
+execute: function (callback) {
+var self     = this,
+requests = self.requests,
+state    = self._state,
+i, len, queue, req;
+if (state === 'done') {
+callback && callback(self.errors.length ? self.errors : null, self);
+return;
+} else {
+callback && self._callbacks.push(callback);
+if (state === 'executing') {
+return;
+}
+}
+self._state = 'executing';
+self._queue = queue = [];
+if (self.options.timeout) {
+self._timeout = setTimeout(function () {
+self.abort('Timeout');
+}, self.options.timeout);
+}
+self._reqsWaiting = requests.length;
+for (i = 0, len = requests.length; i < len; ++i) {
+req = requests[i];
+if (req.async || req.type === 'css') {
+// No need to queue CSS or fully async JS.
+self._insert(req);
+} else {
+queue.push(req);
+}
+}
+self._next();
+},
+/**
+Manually purges any `<script>` or `<link>` nodes this transaction has
+created.
+Be careful when purging a transaction that contains CSS requests, since
+removing `<link>` nodes will also remove any styles they applied.
+@method purge
+**/
+purge: function () {
+Get._purge(this.nodes);
+},
+// -- Protected Methods ----------------------------------------------------
+_createNode: function (name, attrs, doc) {
+var node = doc.createElement(name),
+attr, testEl;
+if (!CUSTOM_ATTRS) {
+// IE6 and IE7 expect property names rather than attribute names for
+// certain attributes. Rather than sniffing, we do a quick feature
+// test the first time _createNode() runs to determine whether we
+// need to provide a workaround.
+testEl = doc.createElement('div');
+testEl.setAttribute('class', 'a');
+CUSTOM_ATTRS = testEl.className === 'a' ? {} : {
+'for'  : 'htmlFor',
+'class': 'className'
+};
+}
+for (attr in attrs) {
+if (attrs.hasOwnProperty(attr)) {
+node.setAttribute(CUSTOM_ATTRS[attr] || attr, attrs[attr]);
+}
+}
+return node;
+},
+_finish: function () {
+var errors  = this.errors.length ? this.errors : null,
+options = this.options,
+thisObj = options.context || this,
+data, i, len;
+if (this._state === 'done') {
+return;
+}
+this._state = 'done';
+for (i = 0, len = this._callbacks.length; i < len; ++i) {
+this._callbacks[i].call(thisObj, errors, this);
+}
+data = this._getEventData();
+if (errors) {
+if (options.onTimeout && errors[errors.length - 1].error === 'Timeout') {
+options.onTimeout.call(thisObj, data);
+}
+if (options.onFailure) {
+options.onFailure.call(thisObj, data);
+}
+} else if (options.onSuccess) {
+options.onSuccess.call(thisObj, data);
+}
+if (options.onEnd) {
+options.onEnd.call(thisObj, data);
+}
+if (options._onFinish) {
+options._onFinish();
+}
+},
+_getEventData: function (req) {
+if (req) {
+// This merge is necessary for backcompat. I hate it.
+return Y.merge(this, {
+abort  : this.abort, // have to copy these because the prototype isn't preserved
+purge  : this.purge,
+request: req,
+url    : req.url,
+win    : req.win
+});
+} else {
+return this;
+}
+},
+_getInsertBefore: function (req) {
+var doc = req.doc,
+el  = req.insertBefore,
+cache, docStamp;
+if (el) {
+return typeof el === 'string' ? doc.getElementById(el) : el;
+}
+cache    = Get._insertCache;
+docStamp = Y.stamp(doc);
+if ((el = cache[docStamp])) { // assignment
+return el;
+}
+// Inserting before a <base> tag apparently works around an IE bug
+// (according to a comment from pre-3.5.0 Y.Get), but I'm not sure what
+// bug that is, exactly. Better safe than sorry?
+if ((el = doc.getElementsByTagName('base')[0])) { // assignment
+return (cache[docStamp] = el);
+}
+// Look for a <head> element.
+el = doc.head || doc.getElementsByTagName('head')[0];
+if (el) {
+// Create a marker node at the end of <head> to use as an insertion
+// point. Inserting before this node will ensure that all our CSS
+// gets inserted in the correct order, to maintain style precedence.
+el.appendChild(doc.createTextNode(''));
+return (cache[docStamp] = el.lastChild);
+}
+// If all else fails, just insert before the first script node on the
+// page, which is virtually guaranteed to exist.
+return (cache[docStamp] = doc.getElementsByTagName('script')[0]);
+},
+_insert: function (req) {
+var env          = Get._env,
+insertBefore = this._getInsertBefore(req),
+isScript     = req.type === 'js',
+node         = req.node,
+self         = this,
+ua           = Y.UA,
+cssTimeout, nodeType;
+if (!node) {
+if (isScript) {
+nodeType = 'script';
+} else if (!env.cssLoad && ua.gecko) {
+nodeType = 'style';
+} else {
+nodeType = 'link';
+}
+node = req.node = this._createNode(nodeType, req.attributes,
+req.doc);
+}
+function onError() {
+self._progress('Failed to load ' + req.url, req);
+}
+function onLoad() {
+if (cssTimeout) {
+clearTimeout(cssTimeout);
+}
+self._progress(null, req);
+}
+// Deal with script asynchronicity.
+if (isScript) {
+node.setAttribute('src', req.url);
+if (req.async) {
+// Explicitly indicate that we want the browser to execute this
+// script asynchronously. This is necessary for older browsers
+// like Firefox <4.
+node.async = true;
+} else {
+if (env.async) {
+// This browser treats injected scripts as async by default
+// (standard HTML5 behavior) but asynchronous loading isn't
+// desired, so tell the browser not to mark this script as
+// async.
+node.async = false;
+}
+// If this browser doesn't preserve script execution order based
+// on insertion order, we'll need to avoid inserting other
+// scripts until this one finishes loading.
+if (!env.preservesScriptOrder) {
+this._pending = req;
+}
+}
+} else {
+if (!env.cssLoad && ua.gecko) {
+// In Firefox <9, we can import the requested URL into a <style>
+// node and poll for the existence of node.sheet.cssRules. This
+// gives us a reliable way to determine CSS load completion that
+// also works for cross-domain stylesheets.
+//
+// Props to Zach Leatherman for calling my attention to this
+// technique.
+node.innerHTML = (req.attributes.charset ?
+'@charset "' + req.attributes.charset + '";' : '') +
+'@import "' + req.url + '";';
+} else {
+node.setAttribute('href', req.url);
+}
+}
+// Inject the node.
+if (isScript && ua.ie && (ua.ie < 9 || (document.documentMode && document.documentMode < 9))) {
+// Script on IE < 9, and IE 9+ when in IE 8 or older modes, including quirks mode.
+node.onreadystatechange = function () {
+if (/loaded|complete/.test(node.readyState)) {
+node.onreadystatechange = null;
+onLoad();
+}
+};
+} else if (!isScript && !env.cssLoad) {
+// CSS on Firefox <9 or WebKit.
+this._poll(req);
+} else {
+// Script or CSS on everything else. Using DOM 0 events because that
+// evens the playing field with older IEs.
+if (ua.ie >= 10) {
+// We currently need to introduce a timeout for IE10, since it
+// calls onerror/onload synchronously for 304s - messing up existing
+// program flow.
+// Remove this block if the following bug gets fixed by GA
+/*jshint maxlen: 1500 */
+// https://connect.microsoft.com/IE/feedback/details/763871/dynamically-loaded-scripts-with-304s-responses-interrupt-the-currently-executing-js-thread-onload
+node.onerror = function() { setTimeout(onError, 0); };
+node.onload  = function() { setTimeout(onLoad, 0); };
+} else {
+node.onerror = onError;
+node.onload  = onLoad;
+}
+// If this browser doesn't fire an event when CSS fails to load,
+// fail after a timeout to avoid blocking the transaction queue.
+if (!env.cssFail && !isScript) {
+cssTimeout = setTimeout(onError, req.timeout || 3000);
+}
+}
+this.nodes.push(node);
+insertBefore.parentNode.insertBefore(node, insertBefore);
+},
+_next: function () {
+if (this._pending) {
+return;
+}
+// If there are requests in the queue, insert the next queued request.
+// Otherwise, if we're waiting on already-inserted requests to finish,
+// wait longer. If there are no queued requests and we're not waiting
+// for anything to load, then we're done!
+if (this._queue.length) {
+this._insert(this._queue.shift());
+} else if (!this._reqsWaiting) {
+this._finish();
+}
+},
+_poll: function (newReq) {
+var self       = this,
+pendingCSS = self._pendingCSS,
+isWebKit   = Y.UA.webkit,
+i, hasRules, j, nodeHref, req, sheets;
+if (newReq) {
+pendingCSS || (pendingCSS = self._pendingCSS = []);
+pendingCSS.push(newReq);
+if (self._pollTimer) {
+// A poll timeout is already pending, so no need to create a
+// new one.
+return;
+}
+}
+self._pollTimer = null;
+// Note: in both the WebKit and Gecko hacks below, a CSS URL that 404s
+// will still be treated as a success. There's no good workaround for
+// this.
+for (i = 0; i < pendingCSS.length; ++i) {
+req = pendingCSS[i];
+if (isWebKit) {
+// Look for a stylesheet matching the pending URL.
+sheets   = req.doc.styleSheets;
+j        = sheets.length;
+nodeHref = req.node.href;
+while (--j >= 0) {
+if (sheets[j].href === nodeHref) {
+pendingCSS.splice(i, 1);
+i -= 1;
+self._progress(null, req);
+break;
+}
+}
+} else {
+// Many thanks to Zach Leatherman for calling my attention to
+// the @import-based cross-domain technique used here, and to
+// Oleg Slobodskoi for an earlier same-domain implementation.
+//
+// See Zach's blog for more details:
+// http://www.zachleat.com/web/2010/07/29/load-css-dynamically/
+try {
+// We don't really need to store this value since we never
+// use it again, but if we don't store it, Closure Compiler
+// assumes the code is useless and removes it.
+hasRules = !!req.node.sheet.cssRules;
+// If we get here, the stylesheet has loaded.
+pendingCSS.splice(i, 1);
+i -= 1;
+self._progress(null, req);
+} catch (ex) {
+// An exception means the stylesheet is still loading.
+}
+}
+}
+if (pendingCSS.length) {
+self._pollTimer = setTimeout(function () {
+self._poll.call(self);
+}, self.options.pollInterval);
+}
+},
+_progress: function (err, req) {
+var options = this.options;
+if (err) {
+req.error = err;
+this.errors.push({
+error  : err,
+request: req
+});
+Y.log(err, 'error', 'get');
+}
+req.node._yuiget_finished = req.finished = true;
+if (options.onProgress) {
+options.onProgress.call(options.context || this,
+this._getEventData(req));
+}
+if (req.autopurge) {
+// Pre-3.5.0 Get always excludes the most recent node from an
+// autopurge. I find this odd, but I'm keeping that behavior for
+// the sake of backcompat.
+Get._autoPurge(this.options.purgethreshold);
+Get._purgeNodes.push(req.node);
+}
+if (this._pending === req) {
+this._pending = null;
+}
+this._reqsWaiting -= 1;
+this._next();
+}
+};
+}, '@VERSION@', {"requires": ["yui-base"]});
+YUI.add('features', function (Y, NAME) {
+var feature_tests = {};
+/**
+Contains the core of YUI's feature test architecture.
+@module features
+*/
+/**
+* Feature detection
+* @class Features
+* @static
+*/
+Y.mix(Y.namespace('Features'), {
+/**
+* Object hash of all registered feature tests
+* @property tests
+* @type Object
+*/
+tests: feature_tests,
+/**
+* Add a test to the system
+*
+*   ```
+*   Y.Features.add("load", "1", {});
+*   ```
+*
+* @method add
+* @param {String} cat The category, right now only 'load' is supported
+* @param {String} name The number sequence of the test, how it's reported in the URL or config: 1, 2, 3
+* @param {Object} o Object containing test properties
+* @param {String} o.name The name of the test
+* @param {Function} o.test The test function to execute, the only argument to the function is the `Y` instance
+* @param {String} o.trigger The module that triggers this test.
+*/
+add: function(cat, name, o) {
+feature_tests[cat] = feature_tests[cat] || {};
+feature_tests[cat][name] = o;
+},
+/**
+* Execute all tests of a given category and return the serialized results
+*
+*   ```
+*   caps=1:1;2:1;3:0
+*   ```
+* @method all
+* @param {String} cat The category to execute
+* @param {Array} args The arguments to pass to the test function
+* @return {String} A semi-colon separated string of tests and their success/failure: 1:1;2:1;3:0
+*/
+all: function(cat, args) {
+var cat_o = feature_tests[cat],
+// results = {};
+result = [];
+if (cat_o) {
+Y.Object.each(cat_o, function(v, k) {
+result.push(k + ':' + (Y.Features.test(cat, k, args) ? 1 : 0));
+});
+}
+return (result.length) ? result.join(';') : '';
+},
+/**
+* Run a sepecific test and return a Boolean response.
+*
+*   ```
+*   Y.Features.test("load", "1");
+*   ```
+*
+* @method test
+* @param {String} cat The category of the test to run
+* @param {String} name The name of the test to run
+* @param {Array} args The arguments to pass to the test function
+* @return {Boolean} True or false if the test passed/failed.
+*/
+test: function(cat, name, args) {
+args = args || [];
+var result, ua, test,
+cat_o = feature_tests[cat],
+feature = cat_o && cat_o[name];
+if (!feature) {
+Y.log('Feature test ' + cat + ', ' + name + ' not found');
+} else {
+result = feature.result;
+if (Y.Lang.isUndefined(result)) {
+ua = feature.ua;
+if (ua) {
+result = (Y.UA[ua]);
+}
+test = feature.test;
+if (test && ((!ua) || result)) {
+result = test.apply(Y, args);
+}
+feature.result = result;
+}
+}
+return result;
+}
+});
+// Y.Features.add("load", "1", {});
+// Y.Features.test("load", "1");
+// caps=1:1;2:0;3:1;
+/* This file is auto-generated by (yogi loader --yes --mix --start ../) */
+/*jshint maxlen:900, eqeqeq: false */
+var add = Y.Features.add;
+// app-transitions-native
+add('load', '0', {
+"name": "app-transitions-native",
+"test": function (Y) {
+var doc  = Y.config.doc,
+node = doc ? doc.documentElement : null;
+if (node && node.style) {
+return ('MozTransition' in node.style || 'WebkitTransition' in node.style || 'transition' in node.style);
+}
+return false;
+},
+"trigger": "app-transitions"
+});
+// autocomplete-list-keys
+add('load', '1', {
+"name": "autocomplete-list-keys",
+"test": function (Y) {
+// Only add keyboard support to autocomplete-list if this doesn't appear to
+// be an iOS or Android-based mobile device.
+//
+// There's currently no feasible way to actually detect whether a device has
+// a hardware keyboard, so this sniff will have to do. It can easily be
+// overridden by manually loading the autocomplete-list-keys module.
+//
+// Worth noting: even though iOS supports bluetooth keyboards, Mobile Safari
+// doesn't fire the keyboard events used by AutoCompleteList, so there's
+// no point loading the -keys module even when a bluetooth keyboard may be
+// available.
+return !(Y.UA.ios || Y.UA.android);
+},
+"trigger": "autocomplete-list"
+});
+// dd-gestures
+add('load', '2', {
+"name": "dd-gestures",
+"trigger": "dd-drag",
+"ua": "touchEnabled"
+});
+// dom-style-ie
+add('load', '3', {
+"name": "dom-style-ie",
+"test": function (Y) {
+var testFeature = Y.Features.test,
+addFeature = Y.Features.add,
+WINDOW = Y.config.win,
+DOCUMENT = Y.config.doc,
+DOCUMENT_ELEMENT = 'documentElement',
+ret = false;
+addFeature('style', 'computedStyle', {
+test: function() {
+return WINDOW && 'getComputedStyle' in WINDOW;
+}
+});
+addFeature('style', 'opacity', {
+test: function() {
+return DOCUMENT && 'opacity' in DOCUMENT[DOCUMENT_ELEMENT].style;
+}
+});
+ret =  (!testFeature('style', 'opacity') &&
+!testFeature('style', 'computedStyle'));
+return ret;
+},
+"trigger": "dom-style"
+});
+// editor-para-ie
+add('load', '4', {
+"name": "editor-para-ie",
+"trigger": "editor-para",
+"ua": "ie",
+"when": "instead"
+});
+// event-base-ie
+add('load', '5', {
+"name": "event-base-ie",
+"test": function(Y) {
+var imp = Y.config.doc && Y.config.doc.implementation;
+return (imp && (!imp.hasFeature('Events', '2.0')));
+},
+"trigger": "node-base"
+});
+// graphics-canvas
+add('load', '6', {
+"name": "graphics-canvas",
+"test": function(Y) {
+var DOCUMENT = Y.config.doc,
+useCanvas = Y.config.defaultGraphicEngine && Y.config.defaultGraphicEngine == "canvas",
+		canvas = DOCUMENT && DOCUMENT.createElement("canvas"),
+svg = (DOCUMENT && DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1"));
+return (!svg || useCanvas) && (canvas && canvas.getContext && canvas.getContext("2d"));
+},
+"trigger": "graphics"
+});
+// graphics-canvas-default
+add('load', '7', {
+"name": "graphics-canvas-default",
+"test": function(Y) {
+var DOCUMENT = Y.config.doc,
+useCanvas = Y.config.defaultGraphicEngine && Y.config.defaultGraphicEngine == "canvas",
+		canvas = DOCUMENT && DOCUMENT.createElement("canvas"),
+svg = (DOCUMENT && DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1"));
+return (!svg || useCanvas) && (canvas && canvas.getContext && canvas.getContext("2d"));
+},
+"trigger": "graphics"
+});
+// graphics-svg
+add('load', '8', {
+"name": "graphics-svg",
+"test": function(Y) {
+var DOCUMENT = Y.config.doc,
+useSVG = !Y.config.defaultGraphicEngine || Y.config.defaultGraphicEngine != "canvas",
+		canvas = DOCUMENT && DOCUMENT.createElement("canvas"),
+svg = (DOCUMENT && DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1"));
+return svg && (useSVG || !canvas);
+},
+"trigger": "graphics"
+});
+// graphics-svg-default
+add('load', '9', {
+"name": "graphics-svg-default",
+"test": function(Y) {
+var DOCUMENT = Y.config.doc,
+useSVG = !Y.config.defaultGraphicEngine || Y.config.defaultGraphicEngine != "canvas",
+		canvas = DOCUMENT && DOCUMENT.createElement("canvas"),
+svg = (DOCUMENT && DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1"));
+return svg && (useSVG || !canvas);
+},
+"trigger": "graphics"
+});
+// graphics-vml
+add('load', '10', {
+"name": "graphics-vml",
+"test": function(Y) {
+var DOCUMENT = Y.config.doc,
+		canvas = DOCUMENT && DOCUMENT.createElement("canvas");
+return (DOCUMENT && !DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1") && (!canvas || !canvas.getContext || !canvas.getContext("2d")));
+},
+"trigger": "graphics"
+});
+// graphics-vml-default
+add('load', '11', {
+"name": "graphics-vml-default",
+"test": function(Y) {
+var DOCUMENT = Y.config.doc,
+		canvas = DOCUMENT && DOCUMENT.createElement("canvas");
+return (DOCUMENT && !DOCUMENT.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1") && (!canvas || !canvas.getContext || !canvas.getContext("2d")));
+},
+"trigger": "graphics"
+});
+// history-hash-ie
+add('load', '12', {
+"name": "history-hash-ie",
+"test": function (Y) {
+var docMode = Y.config.doc && Y.config.doc.documentMode;
+return Y.UA.ie && (!('onhashchange' in Y.config.win) ||
+!docMode || docMode < 8);
+},
+"trigger": "history-hash"
+});
+// io-nodejs
+add('load', '13', {
+"name": "io-nodejs",
+"trigger": "io-base",
+"ua": "nodejs"
+});
+// json-parse-shim
+add('load', '14', {
+"name": "json-parse-shim",
+"test": function (Y) {
+var _JSON = Y.config.global.JSON,
+Native = Object.prototype.toString.call(_JSON) === '[object JSON]' && _JSON,
+nativeSupport = Y.config.useNativeJSONParse !== false && !!Native;
+function workingNative( k, v ) {
+return k === "ok" ? true : v;
+}
+// Double check basic functionality.  This is mainly to catch early broken
+// implementations of the JSON API in Firefox 3.1 beta1 and beta2
+if ( nativeSupport ) {
+try {
+nativeSupport = ( Native.parse( '{"ok":false}', workingNative ) ).ok;
+}
+catch ( e ) {
+nativeSupport = false;
+}
+}
+return !nativeSupport;
+},
+"trigger": "json-parse"
+});
+// json-stringify-shim
+add('load', '15', {
+"name": "json-stringify-shim",
+"test": function (Y) {
+var _JSON = Y.config.global.JSON,
+Native = Object.prototype.toString.call(_JSON) === '[object JSON]' && _JSON,
+nativeSupport = Y.config.useNativeJSONStringify !== false && !!Native;
+// Double check basic native functionality.  This is primarily to catch broken
+// early JSON API implementations in Firefox 3.1 beta1 and beta2.
+if ( nativeSupport ) {
+try {
+nativeSupport = ( '0' === Native.stringify(0) );
+} catch ( e ) {
+nativeSupport = false;
+}
+}
+return !nativeSupport;
+},
+"trigger": "json-stringify"
+});
+// scrollview-base-ie
+add('load', '16', {
+"name": "scrollview-base-ie",
+"trigger": "scrollview-base",
+"ua": "ie"
+});
+// selector-css2
+add('load', '17', {
+"name": "selector-css2",
+"test": function (Y) {
+var DOCUMENT = Y.config.doc,
+ret = DOCUMENT && !('querySelectorAll' in DOCUMENT);
+return ret;
+},
+"trigger": "selector"
+});
+// transition-timer
+add('load', '18', {
+"name": "transition-timer",
+"test": function (Y) {
+var DOCUMENT = Y.config.doc,
+node = (DOCUMENT) ? DOCUMENT.documentElement: null,
+ret = true;
+if (node && node.style) {
+ret = !('MozTransition' in node.style || 'WebkitTransition' in node.style || 'transition' in node.style);
+}
+return ret;
+},
+"trigger": "transition"
+});
+// widget-base-ie
+add('load', '19', {
+"name": "widget-base-ie",
+"trigger": "widget-base",
+"ua": "ie"
+});
+// yql-jsonp
+add('load', '20', {
+"name": "yql-jsonp",
+"test": function (Y) {
+/* Only load the JSONP module when not in nodejs or winjs
+TODO Make the winjs module a CORS module
+*/
+return (!Y.UA.nodejs && !Y.UA.winjs);
+},
+"trigger": "yql",
+"when": "after"
+});
+// yql-nodejs
+add('load', '21', {
+"name": "yql-nodejs",
+"trigger": "yql",
+"ua": "nodejs",
+"when": "after"
+});
+// yql-winjs
+add('load', '22', {
+"name": "yql-winjs",
+"trigger": "yql",
+"ua": "winjs",
+"when": "after"
+});
+}, '@VERSION@', {"requires": ["yui-base"]});
+YUI.add('intl-base', function (Y, NAME) {
+/**
+* The Intl utility provides a central location for managing sets of
+* localized resources (strings and formatting patterns).
+*
+* @class Intl
+* @uses EventTarget
+* @static
+*/
+var SPLIT_REGEX = /[, ]/;
+Y.mix(Y.namespace('Intl'), {
+/**
+* Returns the language among those available that
+* best matches the preferred language list, using the Lookup
+* algorithm of BCP 47.
+* If none of the available languages meets the user's preferences,
+* then "" is returned.
+* Extended language ranges are not supported.
+*
+* @method lookupBestLang
+* @param {String[] | String} preferredLanguages The list of preferred
+* languages in descending preference order, represented as BCP 47
+* language tags. A string array or a comma-separated list.
+* @param {String[]} availableLanguages The list of languages
+* that the application supports, represented as BCP 47 language
+* tags.
+*
+* @return {String} The available language that best matches the
+* preferred language list, or "".
+* @since 3.1.0
+*/
+lookupBestLang: function(preferredLanguages, availableLanguages) {
+var i, language, result, index;
+// check whether the list of available languages contains language;
+// if so return it
+function scan(language) {
+var i;
+for (i = 0; i < availableLanguages.length; i += 1) {
+if (language.toLowerCase() ===
+availableLanguages[i].toLowerCase()) {
+return availableLanguages[i];
+}
+}
+}
+if (Y.Lang.isString(preferredLanguages)) {
+preferredLanguages = preferredLanguages.split(SPLIT_REGEX);
+}
+for (i = 0; i < preferredLanguages.length; i += 1) {
+language = preferredLanguages[i];
+if (!language || language === '*') {
+continue;
+}
+// check the fallback sequence for one language
+while (language.length > 0) {
+result = scan(language);
+if (result) {
+return result;
+} else {
+index = language.lastIndexOf('-');
+if (index >= 0) {
+language = language.substring(0, index);
+// one-character subtags get cut along with the
+// following subtag
+if (index >= 2 && language.charAt(index - 2) === '-') {
+language = language.substring(0, index - 2);
+}
+} else {
+// nothing available for this language
+break;
+}
+}
+}
+}
+return '';
+}
+});
+}, '@VERSION@', {"requires": ["yui-base"]});
+YUI.add('yui-log', function (Y, NAME) {
+/**
+* Provides console log capability and exposes a custom event for
+* console implementations. This module is a `core` YUI module,
+* <a href="../classes/YUI.html#method_log">it's documentation is located under the YUI class</a>.
+*
+* @module yui
+* @submodule yui-log
+*/
+var INSTANCE = Y,
+LOGEVENT = 'yui:log',
+UNDEFINED = 'undefined',
+LEVELS = { debug: 1,
+info: 2,
+warn: 4,
+error: 8 };
+/**
+* If the 'debug' config is true, a 'yui:log' event will be
+* dispatched, which the Console widget and anything else
+* can consume.  If the 'useBrowserConsole' config is true, it will
+* write to the browser console if available.  YUI-specific log
+* messages will only be present in the -debug versions of the
+* JS files.  The build system is supposed to remove log statements
+* from the raw and minified versions of the files.
+*
+* @method log
+* @for YUI
+* @param  {String}  msg  The message to log.
+* @param  {String}  cat  The log category for the message.  Default
+*                        categories are "info", "warn", "error", "debug".
+*                        Custom categories can be used as well. (opt).
+* @param  {String}  src  The source of the the message (opt).
+* @param  {boolean} silent If true, the log event won't fire.
+* @return {YUI}      YUI instance.
+*/
+INSTANCE.log = function(msg, cat, src, silent) {
+var bail, excl, incl, m, f, minlevel,
+Y = INSTANCE,
+c = Y.config,
+publisher = (Y.fire) ? Y : YUI.Env.globalEvents;
+// suppress log message if the config is off or the event stack
+// or the event call stack contains a consumer of the yui:log event
+if (c.debug) {
+// apply source filters
+src = src || "";
+if (typeof src !== "undefined") {
+excl = c.logExclude;
+incl = c.logInclude;
+if (incl && !(src in incl)) {
+bail = 1;
+} else if (incl && (src in incl)) {
+bail = !incl[src];
+} else if (excl && (src in excl)) {
+bail = excl[src];
+}
+// Set a default category of info if the category was not defined or was not
+// a real category.
+if ((typeof cat === 'undefined') || !(cat in LEVELS)) {
+cat = 'info';
+}
+// Determine the current minlevel as defined in configuration
+Y.config.logLevel = Y.config.logLevel || 'debug';
+minlevel = LEVELS[Y.config.logLevel.toLowerCase()];
+if (cat in LEVELS && LEVELS[cat] < minlevel) {
+// Skip this message if the we don't meet the defined minlevel
+bail = 1;
+}
+}
+if (!bail) {
+if (c.useBrowserConsole) {
+m = (src) ? src + ': ' + msg : msg;
+if (Y.Lang.isFunction(c.logFn)) {
+c.logFn.call(Y, msg, cat, src);
+} else if (typeof console !== UNDEFINED && console.log) {
+f = (cat && console[cat] && (cat in LEVELS)) ? cat : 'log';
+console[f](m);
+} else if (typeof opera !== UNDEFINED) {
+opera.postError(m);
+}
+}
+if (publisher && !silent) {
+if (publisher === Y && (!publisher.getEvent(LOGEVENT))) {
+publisher.publish(LOGEVENT, {
+broadcast: 2
+});
+}
+publisher.fire(LOGEVENT, {
+msg: msg,
+cat: cat,
+src: src
+});
+}
+}
+}
+return Y;
+};
+/**
+* Write a system message.  This message will be preserved in the
+* minified and raw versions of the YUI files, unlike log statements.
+* @method message
+* @for YUI
+* @param  {String}  msg  The message to log.
+* @param  {String}  cat  The log category for the message.  Default
+*                        categories are "info", "warn", "error", "debug".
+*                        Custom categories can be used as well. (opt).
+* @param  {String}  src  The source of the the message (opt).
+* @param  {boolean} silent If true, the log event won't fire.
+* @return {YUI}      YUI instance.
+*/
+INSTANCE.message = function() {
+return INSTANCE.log.apply(INSTANCE, arguments);
+};
+}, '@VERSION@', {"requires": ["yui-base"]});
+YUI.add('yui-later', function (Y, NAME) {
+/**
+* Provides a setTimeout/setInterval wrapper. This module is a `core` YUI module,
+* <a href="../classes/YUI.html#method_later">it's documentation is located under the YUI class</a>.
+*
+* @module yui
+* @submodule yui-later
+*/
+var NO_ARGS = [];
+/**
+* Executes the supplied function in the context of the supplied
+* object 'when' milliseconds later.  Executes the function a
+* single time unless periodic is set to true.
+* @for YUI
+* @method later
+* @param when {Number} the number of milliseconds to wait until the fn
+* is executed.
+* @param o the context object.
+* @param fn {Function|String} the function to execute or the name of
+* the method in the 'o' object to execute.
+* @param data [Array] data that is provided to the function.  This
+* accepts either a single item or an array.  If an array is provided,
+* the function is executed with one parameter for each array item.
+* If you need to pass a single array parameter, it needs to be wrapped
+* in an array [myarray].
+*
+* Note: native methods in IE may not have the call and apply methods.
+* In this case, it will work, but you are limited to four arguments.
+*
+* @param periodic {boolean} if true, executes continuously at supplied
+* interval until canceled.
+* @return {object} a timer object. Call the cancel() method on this
+* object to stop the timer.
+*/
+Y.later = function(when, o, fn, data, periodic) {
+when = when || 0;
+data = (!Y.Lang.isUndefined(data)) ? Y.Array(data) : NO_ARGS;
+o = o || Y.config.win || Y;
+var cancelled = false,
+method = (o && Y.Lang.isString(fn)) ? o[fn] : fn,
+wrapper = function() {
+// IE 8- may execute a setInterval callback one last time
+// after clearInterval was called, so in order to preserve
+// the cancel() === no more runny-run, we have to jump through
+// an extra hoop.
+if (!cancelled) {
+if (!method.apply) {
+method(data[0], data[1], data[2], data[3]);
+} else {
+method.apply(o, data || NO_ARGS);
+}
+}
+},
+id = (periodic) ? setInterval(wrapper, when) : setTimeout(wrapper, when);
+return {
+id: id,
+interval: periodic,
+cancel: function() {
+cancelled = true;
+if (this.interval) {
+clearInterval(id);
+} else {
+clearTimeout(id);
+}
+}
+};
+};
+Y.Lang.later = Y.later;
+}, '@VERSION@', {"requires": ["yui-base"]});
+YUI.add('yui', function (Y, NAME) {}, '@VERSION@', {"use": ["get", "features", "intl-base", "yui-log", "yui-later"]});

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