
;(function(define, global) { 'use strict';
define(['module'], function(module) {

	/*! Socket.IO.js build:0.9.11, development. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed
			Modified to work in-line; Removed Flash transport code */
	var io = ('undefined' === typeof module ? {} : module.exports);
	(function() {

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, global) {

		  /**
		   * IO namespace.
		   *
		   * @namespace
		   */

		  var io = exports;

		  /**
		   * Socket.IO version
		   *
		   * @api public
		   */

		  io.version = '0.9.11';

		  /**
		   * Protocol implemented.
		   *
		   * @api public
		   */

		  io.protocol = 1;

		  /**
		   * Available transports, these will be populated with the available transports
		   *
		   * @api public
		   */

		  io.transports = [];

		  /**
		   * Keep track of jsonp callbacks.
		   *
		   * @api private
		   */

		  io.j = [];

		  /**
		   * Keep track of our io.Sockets
		   *
		   * @api private
		   */
		  io.sockets = {};


		  /**
		   * Manages connections to hosts.
		   *
		   * @param {String} uri
		   * @Param {Boolean} force creation of new socket (defaults to false)
		   * @api public
		   */

		  io.connect = function (host, details) {
		    var uri = io.util.parseUri(host)
		      , uuri
		      , socket;

		    if (global && global.location) {
		      uri.protocol = uri.protocol || global.location.protocol.slice(0, -1);
		      uri.host = uri.host || (global.document
		        ? global.document.domain : global.location.hostname);
		      uri.port = uri.port || global.location.port;
		    }

		    uuri = io.util.uniqueUri(uri);

		    var options = {
		        host: uri.host
		      , secure: 'https' == uri.protocol
		      , port: uri.port || ('https' == uri.protocol ? 443 : 80)
		      , query: uri.query || ''
		    };

		    io.util.merge(options, details);

		    if (options['force new connection'] || !io.sockets[uuri]) {
		      socket = new io.Socket(options);
		    }

		    if (!options['force new connection'] && socket) {
		      io.sockets[uuri] = socket;
		    }

		    socket = socket || io.sockets[uuri];

		    // if path is different from '' or /
		    return socket.of(uri.path.length > 1 ? uri.path : '');
		  };

		})('object' === typeof module ? module.exports : (io = {}), global);
		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, global) {

		  /**
		   * Utilities namespace.
		   *
		   * @namespace
		   */

		  var util = exports.util = {};

		  /**
		   * Parses an URI
		   *
		   * @author Steven Levithan <stevenlevithan.com> (MIT license)
		   * @api public
		   */

		  var re = /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;

		  var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password',
		               'host', 'port', 'relative', 'path', 'directory', 'file', 'query',
		               'anchor'];

		  util.parseUri = function (str) {
		    var m = re.exec(str || '')
		      , uri = {}
		      , i = 14;

		    while (i--) {
		      uri[parts[i]] = m[i] || '';
		    }

		    return uri;
		  };

		  /**
		   * Produces a unique url that identifies a Socket.IO connection.
		   *
		   * @param {Object} uri
		   * @api public
		   */

		  util.uniqueUri = function (uri) {
		    var protocol = uri.protocol
		      , host = uri.host
		      , port = uri.port;

		    if ('document' in global) {
		      host = host || document.domain;
		      port = port || (protocol == 'https'
		        && document.location.protocol !== 'https:' ? 443 : document.location.port);
		    } else {
		      host = host || 'localhost';

		      if (!port && protocol == 'https') {
		        port = 443;
		      }
		    }

		    return (protocol || 'http') + '://' + host + ':' + (port || 80);
		  };

		  /**
		   * Mergest 2 query strings in to once unique query string
		   *
		   * @param {String} base
		   * @param {String} addition
		   * @api public
		   */

		  util.query = function (base, addition) {
		    var query = util.chunkQuery(base || '')
		      , components = [];

		    util.merge(query, util.chunkQuery(addition || ''));
		    for (var part in query) {
		      if (query.hasOwnProperty(part)) {
		        components.push(part + '=' + query[part]);
		      }
		    }

		    return components.length ? '?' + components.join('&') : '';
		  };

		  /**
		   * Transforms a querystring in to an object
		   *
		   * @param {String} qs
		   * @api public
		   */

		  util.chunkQuery = function (qs) {
		    var query = {}
		      , params = qs.split('&')
		      , i = 0
		      , l = params.length
		      , kv;

		    for (; i < l; ++i) {
		      kv = params[i].split('=');
		      if (kv[0]) {
		        query[kv[0]] = kv[1];
		      }
		    }

		    return query;
		  };

		  /**
		   * Executes the given function when the page is loaded.
		   *
		   *     io.util.load(function () { console.log('page loaded'); });
		   *
		   * @param {Function} fn
		   * @api public
		   */

		  var pageLoaded = false;

		  util.load = function (fn) {
		    if ('document' in global && document.readyState === 'complete' || pageLoaded) {
		      return fn();
		    }

		    util.on(global, 'load', fn, false);
		  };

		  /**
		   * Adds an event.
		   *
		   * @api private
		   */

		  util.on = function (element, event, fn, capture) {
		    if (element.attachEvent) {
		      element.attachEvent('on' + event, fn);
		    } else if (element.addEventListener) {
		      element.addEventListener(event, fn, capture);
		    }
		  };

		  /**
		   * Generates the correct `XMLHttpRequest` for regular and cross domain requests.
		   *
		   * @param {Boolean} [xdomain] Create a request that can be used cross domain.
		   * @returns {XMLHttpRequest|false} If we can create a XMLHttpRequest.
		   * @api private
		   */

		  util.request = function (xdomain) {

		    if (xdomain && 'undefined' != typeof XDomainRequest && !util.ua.hasCORS) {
		      return new XDomainRequest();
		    }

		    if ('undefined' != typeof XMLHttpRequest && (!xdomain || util.ua.hasCORS)) {
		      return new XMLHttpRequest();
		    }

		    if (!xdomain) {
		      try {
		        return new window[(['Active'].concat('Object').join('X'))]('Microsoft.XMLHTTP');
		      } catch(e) { }
		    }

		    return null;
		  };

		  /**
		   * XHR based transport constructor.
		   *
		   * @constructor
		   * @api public
		   */

		  /**
		   * Change the internal pageLoaded value.
		   */

		  if ('undefined' != typeof window) {
		    util.load(function () {
		      pageLoaded = true;
		    });
		  }

		  /**
		   * Defers a function to ensure a spinner is not displayed by the browser
		   *
		   * @param {Function} fn
		   * @api public
		   */

		  util.defer = function (fn) {
		    if (!util.ua.webkit || 'undefined' != typeof importScripts) {
		      return fn();
		    }

		    util.load(function () {
		      setTimeout(fn, 100);
		    });
		  };

		  /**
		   * Merges two objects.
		   *
		   * @api public
		   */

		  util.merge = function merge (target, additional, deep, lastseen) {
		    var seen = lastseen || []
		      , depth = typeof deep == 'undefined' ? 2 : deep
		      , prop;

		    for (prop in additional) {
		      if (additional.hasOwnProperty(prop) && util.indexOf(seen, prop) < 0) {
		        if (typeof target[prop] !== 'object' || !depth) {
		          target[prop] = additional[prop];
		          seen.push(additional[prop]);
		        } else {
		          util.merge(target[prop], additional[prop], depth - 1, seen);
		        }
		      }
		    }

		    return target;
		  };

		  /**
		   * Merges prototypes from objects
		   *
		   * @api public
		   */

		  util.mixin = function (ctor, ctor2) {
		    util.merge(ctor.prototype, ctor2.prototype);
		  };

		  /**
		   * Shortcut for prototypical and static inheritance.
		   *
		   * @api private
		   */

		  util.inherit = function (ctor, ctor2) {
		    function f() {};
		    f.prototype = ctor2.prototype;
		    ctor.prototype = new f;
		  };

		  /**
		   * Checks if the given object is an Array.
		   *
		   *     io.util.isArray([]); // true
		   *     io.util.isArray({}); // false
		   *
		   * @param Object obj
		   * @api public
		   */

		  util.isArray = Array.isArray || function (obj) {
		    return Object.prototype.toString.call(obj) === '[object Array]';
		  };

		  /**
		   * Intersects values of two arrays into a third
		   *
		   * @api public
		   */

		  util.intersect = function (arr, arr2) {
		    var ret = []
		      , longest = arr.length > arr2.length ? arr : arr2
		      , shortest = arr.length > arr2.length ? arr2 : arr;

		    for (var i = 0, l = shortest.length; i < l; i++) {
		      if (~util.indexOf(longest, shortest[i]))
		        ret.push(shortest[i]);
		    }

		    return ret;
		  };

		  /**
		   * Array indexOf compatibility.
		   *
		   * @see bit.ly/a5Dxa2
		   * @api public
		   */

		  util.indexOf = function (arr, o, i) {

		    for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0;
		         i < j && arr[i] !== o; i++) {}

		    return j <= i ? -1 : i;
		  };

		  /**
		   * Converts enumerables to array.
		   *
		   * @api public
		   */

		  util.toArray = function (enu) {
		    var arr = [];

		    for (var i = 0, l = enu.length; i < l; i++)
		      arr.push(enu[i]);

		    return arr;
		  };

		  /**
		   * UA / engines detection namespace.
		   *
		   * @namespace
		   */

		  util.ua = {};

		  /**
		   * Whether the UA supports CORS for XHR.
		   *
		   * @api public
		   */

		  util.ua.hasCORS = 'undefined' != typeof XMLHttpRequest && (function () {
		    try {
		      var a = new XMLHttpRequest();
		    } catch (e) {
		      return false;
		    }

		    return a.withCredentials != undefined;
		  })();

		  /**
		   * Detect webkit.
		   *
		   * @api public
		   */

		  util.ua.webkit = 'undefined' != typeof navigator
		    && /webkit/i.test(navigator.userAgent);

		   /**
		   * Detect iPad/iPhone/iPod.
		   *
		   * @api public
		   */

		  util.ua.iDevice = 'undefined' != typeof navigator
		      && /iPad|iPhone|iPod/i.test(navigator.userAgent);

		})('undefined' != typeof io ? io : module.exports, global);
		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io) {

		  /**
		   * Expose constructor.
		   */

		  exports.EventEmitter = EventEmitter;

		  /**
		   * Event emitter constructor.
		   *
		   * @api public.
		   */

		  function EventEmitter () {};

		  /**
		   * Adds a listener
		   *
		   * @api public
		   */

		  EventEmitter.prototype.on = function (name, fn) {
		    if (!this.$events) {
		      this.$events = {};
		    }

		    if (!this.$events[name]) {
		      this.$events[name] = fn;
		    } else if (io.util.isArray(this.$events[name])) {
		      this.$events[name].push(fn);
		    } else {
		      this.$events[name] = [this.$events[name], fn];
		    }

		    return this;
		  };

		  EventEmitter.prototype.addListener = EventEmitter.prototype.on;

		  /**
		   * Adds a volatile listener.
		   *
		   * @api public
		   */

		  EventEmitter.prototype.once = function (name, fn) {
		    var self = this;

		    function on () {
		      self.removeListener(name, on);
		      fn.apply(this, arguments);
		    };

		    on.listener = fn;
		    this.on(name, on);

		    return this;
		  };

		  /**
		   * Removes a listener.
		   *
		   * @api public
		   */

		  EventEmitter.prototype.removeListener = function (name, fn) {
		    if (this.$events && this.$events[name]) {
		      var list = this.$events[name];

		      if (io.util.isArray(list)) {
		        var pos = -1;

		        for (var i = 0, l = list.length; i < l; i++) {
		          if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
		            pos = i;
		            break;
		          }
		        }

		        if (pos < 0) {
		          return this;
		        }

		        list.splice(pos, 1);

		        if (!list.length) {
		          delete this.$events[name];
		        }
		      } else if (list === fn || (list.listener && list.listener === fn)) {
		        delete this.$events[name];
		      }
		    }

		    return this;
		  };

		  /**
		   * Removes all listeners for an event.
		   *
		   * @api public
		   */

		  EventEmitter.prototype.removeAllListeners = function (name) {
		    if (name === undefined) {
		      this.$events = {};
		      return this;
		    }

		    if (this.$events && this.$events[name]) {
		      this.$events[name] = null;
		    }

		    return this;
		  };

		  /**
		   * Gets all listeners for a certain event.
		   *
		   * @api publci
		   */

		  EventEmitter.prototype.listeners = function (name) {
		    if (!this.$events) {
		      this.$events = {};
		    }

		    if (!this.$events[name]) {
		      this.$events[name] = [];
		    }

		    if (!io.util.isArray(this.$events[name])) {
		      this.$events[name] = [this.$events[name]];
		    }

		    return this.$events[name];
		  };

		  /**
		   * Emits an event.
		   *
		   * @api public
		   */

		  EventEmitter.prototype.emit = function (name) {
		    if (!this.$events) {
		      return false;
		    }

		    var handler = this.$events[name];

		    if (!handler) {
		      return false;
		    }

		    var args = Array.prototype.slice.call(arguments, 1);

		    if ('function' == typeof handler) {
		      handler.apply(this, args);
		    } else if (io.util.isArray(handler)) {
		      var listeners = handler.slice();

		      for (var i = 0, l = listeners.length; i < l; i++) {
		        listeners[i].apply(this, args);
		      }
		    } else {
		      return false;
		    }

		    return true;
		  };

		})(
		    'undefined' != typeof io ? io : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		);

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		/**
		 * Based on JSON2 (http://www.JSON.org/js.html).
		 */

		(function (exports, nativeJSON) {
		  "use strict";

		  // use native JSON if it's available
		  if (nativeJSON && nativeJSON.parse){
		    return exports.JSON = {
		      parse: nativeJSON.parse
		    , stringify: nativeJSON.stringify
		    };
		  }

		  var JSON = exports.JSON = {};

		  function f(n) {
		      // Format integers to have at least two digits.
		      return n < 10 ? '0' + n : n;
		  }

		  function date(d, key) {
		    return isFinite(d.valueOf()) ?
		        d.getUTCFullYear()     + '-' +
		        f(d.getUTCMonth() + 1) + '-' +
		        f(d.getUTCDate())      + 'T' +
		        f(d.getUTCHours())     + ':' +
		        f(d.getUTCMinutes())   + ':' +
		        f(d.getUTCSeconds())   + 'Z' : null;
		  };

		  var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
		      escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
		      gap,
		      indent,
		      meta = {    // table of character substitutions
		          '\b': '\\b',
		          '\t': '\\t',
		          '\n': '\\n',
		          '\f': '\\f',
		          '\r': '\\r',
		          '"' : '\\"',
		          '\\': '\\\\'
		      },
		      rep;


		  function quote(string) {

		// If the string contains no control characters, no quote characters, and no
		// backslash characters, then we can safely slap some quotes around it.
		// Otherwise we must also replace the offending characters with safe escape
		// sequences.

		      escapable.lastIndex = 0;
		      return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
		          var c = meta[a];
		          return typeof c === 'string' ? c :
		              '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
		      }) + '"' : '"' + string + '"';
		  }


		  function str(key, holder) {

		// Produce a string from holder[key].

		      var i,          // The loop counter.
		          k,          // The member key.
		          v,          // The member value.
		          length,
		          mind = gap,
		          partial,
		          value = holder[key];

		// If the value has a toJSON method, call it to obtain a replacement value.

		      if (value instanceof Date) {
		          value = date(key);
		      }

		// If we were called with a replacer function, then call the replacer to
		// obtain a replacement value.

		      if (typeof rep === 'function') {
		          value = rep.call(holder, key, value);
		      }

		// What happens next depends on the value's type.

		      switch (typeof value) {
		      case 'string':
		          return quote(value);

		      case 'number':

		// JSON numbers must be finite. Encode non-finite numbers as null.

		          return isFinite(value) ? String(value) : 'null';

		      case 'boolean':
		      case 'null':

		// If the value is a boolean or null, convert it to a string. Note:
		// typeof null does not produce 'null'. The case is included here in
		// the remote chance that this gets fixed someday.

		          return String(value);

		// If the type is 'object', we might be dealing with an object or an array or
		// null.

		      case 'object':

		// Due to a specification blunder in ECMAScript, typeof null is 'object',
		// so watch out for that case.

		          if (!value) {
		              return 'null';
		          }

		// Make an array to hold the partial results of stringifying this object value.

		          gap += indent;
		          partial = [];

		// Is the value an array?

		          if (Object.prototype.toString.apply(value) === '[object Array]') {

		// The value is an array. Stringify every element. Use null as a placeholder
		// for non-JSON values.

		              length = value.length;
		              for (i = 0; i < length; i += 1) {
		                  partial[i] = str(i, value) || 'null';
		              }

		// Join all of the elements together, separated with commas, and wrap them in
		// brackets.

		              v = partial.length === 0 ? '[]' : gap ?
		                  '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
		                  '[' + partial.join(',') + ']';
		              gap = mind;
		              return v;
		          }

		// If the replacer is an array, use it to select the members to be stringified.

		          if (rep && typeof rep === 'object') {
		              length = rep.length;
		              for (i = 0; i < length; i += 1) {
		                  if (typeof rep[i] === 'string') {
		                      k = rep[i];
		                      v = str(k, value);
		                      if (v) {
		                          partial.push(quote(k) + (gap ? ': ' : ':') + v);
		                      }
		                  }
		              }
		          } else {

		// Otherwise, iterate through all of the keys in the object.

		              for (k in value) {
		                  if (Object.prototype.hasOwnProperty.call(value, k)) {
		                      v = str(k, value);
		                      if (v) {
		                          partial.push(quote(k) + (gap ? ': ' : ':') + v);
		                      }
		                  }
		              }
		          }

		// Join all of the member texts together, separated with commas,
		// and wrap them in braces.

		          v = partial.length === 0 ? '{}' : gap ?
		              '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
		              '{' + partial.join(',') + '}';
		          gap = mind;
		          return v;
		      }
		  }

		// If the JSON object does not yet have a stringify method, give it one.

		  JSON.stringify = function (value, replacer, space) {

		// The stringify method takes a value and an optional replacer, and an optional
		// space parameter, and returns a JSON text. The replacer can be a function
		// that can replace values, or an array of strings that will select the keys.
		// A default replacer method can be provided. Use of the space parameter can
		// produce text that is more easily readable.

		      var i;
		      gap = '';
		      indent = '';

		// If the space parameter is a number, make an indent string containing that
		// many spaces.

		      if (typeof space === 'number') {
		          for (i = 0; i < space; i += 1) {
		              indent += ' ';
		          }

		// If the space parameter is a string, it will be used as the indent string.

		      } else if (typeof space === 'string') {
		          indent = space;
		      }

		// If there is a replacer, it must be a function or an array.
		// Otherwise, throw an error.

		      rep = replacer;
		      if (replacer && typeof replacer !== 'function' &&
		              (typeof replacer !== 'object' ||
		              typeof replacer.length !== 'number')) {
		          throw new Error('JSON.stringify');
		      }

		// Make a fake root object containing our value under the key of ''.
		// Return the result of stringifying the value.

		      return str('', {'': value});
		  };

		// If the JSON object does not yet have a parse method, give it one.

		  JSON.parse = function (text, reviver) {
		  // The parse method takes a text and an optional reviver function, and returns
		  // a JavaScript value if the text is a valid JSON text.

		      var j;

		      function walk(holder, key) {

		  // The walk method is used to recursively walk the resulting structure so
		  // that modifications can be made.

		          var k, v, value = holder[key];
		          if (value && typeof value === 'object') {
		              for (k in value) {
		                  if (Object.prototype.hasOwnProperty.call(value, k)) {
		                      v = walk(value, k);
		                      if (v !== undefined) {
		                          value[k] = v;
		                      } else {
		                          delete value[k];
		                      }
		                  }
		              }
		          }
		          return reviver.call(holder, key, value);
		      }


		  // Parsing happens in four stages. In the first stage, we replace certain
		  // Unicode characters with escape sequences. JavaScript handles many characters
		  // incorrectly, either silently deleting them, or treating them as line endings.

		      text = String(text);
		      cx.lastIndex = 0;
		      if (cx.test(text)) {
		          text = text.replace(cx, function (a) {
		              return '\\u' +
		                  ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
		          });
		      }

		  // In the second stage, we run the text against regular expressions that look
		  // for non-JSON patterns. We are especially concerned with '()' and 'new'
		  // because they can cause invocation, and '=' because it can cause mutation.
		  // But just to be safe, we want to reject all unexpected forms.

		  // We split the second stage into 4 regexp operations in order to work around
		  // crippling inefficiencies in IE's and Safari's regexp engines. First we
		  // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
		  // replace all simple value tokens with ']' characters. Third, we delete all
		  // open brackets that follow a colon or comma or that begin the text. Finally,
		  // we look to see that the remaining characters are only whitespace or ']' or
		  // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

		      if (/^[\],:{}\s]*$/
		              .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
		                  .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
		                  .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

		  // In the third stage we use the eval function to compile the text into a
		  // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
		  // in JavaScript: it can begin a block or an object literal. We wrap the text
		  // in parens to eliminate the ambiguity.

		          j = eval('(' + text + ')');

		  // In the optional fourth stage, we recursively walk the new structure, passing
		  // each name/value pair to a reviver function for possible transformation.

		          return typeof reviver === 'function' ?
		              walk({'': j}, '') : j;
		      }

		  // If the text is not JSON parseable, then a SyntaxError is thrown.

		      throw new SyntaxError('JSON.parse');
		  };

		})(
		    'undefined' != typeof io ? io : module.exports
		  , typeof JSON !== 'undefined' ? JSON : undefined
		);

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io) {

		  /**
		   * Parser namespace.
		   *
		   * @namespace
		   */

		  var parser = exports.parser = {};

		  /**
		   * Packet types.
		   */

		  var packets = parser.packets = [
		      'disconnect'
		    , 'connect'
		    , 'heartbeat'
		    , 'message'
		    , 'json'
		    , 'event'
		    , 'ack'
		    , 'error'
		    , 'noop'
		  ];

		  /**
		   * Errors reasons.
		   */

		  var reasons = parser.reasons = [
		      'transport not supported'
		    , 'client not handshaken'
		    , 'unauthorized'
		  ];

		  /**
		   * Errors advice.
		   */

		  var advice = parser.advice = [
		      'reconnect'
		  ];

		  /**
		   * Shortcuts.
		   */

		  var JSON = io.JSON
		    , indexOf = io.util.indexOf;

		  /**
		   * Encodes a packet.
		   *
		   * @api private
		   */

		  parser.encodePacket = function (packet) {
		    var type = indexOf(packets, packet.type)
		      , id = packet.id || ''
		      , endpoint = packet.endpoint || ''
		      , ack = packet.ack
		      , data = null;

		    switch (packet.type) {
		      case 'error':
		        var reason = packet.reason ? indexOf(reasons, packet.reason) : ''
		          , adv = packet.advice ? indexOf(advice, packet.advice) : '';

		        if (reason !== '' || adv !== '')
		          data = reason + (adv !== '' ? ('+' + adv) : '');

		        break;

		      case 'message':
		        if (packet.data !== '')
		          data = packet.data;
		        break;

		      case 'event':
		        var ev = { name: packet.name };

		        if (packet.args && packet.args.length) {
		          ev.args = packet.args;
		        }

		        data = JSON.stringify(ev);
		        break;

		      case 'json':
		        data = JSON.stringify(packet.data);
		        break;

		      case 'connect':
		        if (packet.qs)
		          data = packet.qs;
		        break;

		      case 'ack':
		        data = packet.ackId
		          + (packet.args && packet.args.length
		              ? '+' + JSON.stringify(packet.args) : '');
		        break;
		    }

		    // construct packet with required fragments
		    var encoded = [
		        type
		      , id + (ack == 'data' ? '+' : '')
		      , endpoint
		    ];

		    // data fragment is optional
		    if (data !== null && data !== undefined)
		      encoded.push(data);

		    return encoded.join(':');
		  };

		  /**
		   * Encodes multiple messages (payload).
		   *
		   * @param {Array} messages
		   * @api private
		   */

		  parser.encodePayload = function (packets) {
		    var decoded = '';

		    if (packets.length == 1)
		      return packets[0];

		    for (var i = 0, l = packets.length; i < l; i++) {
		      var packet = packets[i];
		      decoded += '\ufffd' + packet.length + '\ufffd' + packets[i];
		    }

		    return decoded;
		  };

		  /**
		   * Decodes a packet
		   *
		   * @api private
		   */

		  var regexp = /([^:]+):([0-9]+)?(\+)?:([^:]+)?:?([\s\S]*)?/;

		  parser.decodePacket = function (data) {
		    var pieces = data.match(regexp);

		    if (!pieces) return {};

		    var id = pieces[2] || ''
		      , data = pieces[5] || ''
		      , packet = {
		            type: packets[pieces[1]]
		          , endpoint: pieces[4] || ''
		        };

		    // whether we need to acknowledge the packet
		    if (id) {
		      packet.id = id;
		      if (pieces[3])
		        packet.ack = 'data';
		      else
		        packet.ack = true;
		    }

		    // handle different packet types
		    switch (packet.type) {
		      case 'error':
		        var pieces = data.split('+');
		        packet.reason = reasons[pieces[0]] || '';
		        packet.advice = advice[pieces[1]] || '';
		        break;

		      case 'message':
		        packet.data = data || '';
		        break;

		      case 'event':
		        try {
		          var opts = JSON.parse(data);
		          packet.name = opts.name;
		          packet.args = opts.args;
		        } catch (e) { }

		        packet.args = packet.args || [];
		        break;

		      case 'json':
		        try {
		          packet.data = JSON.parse(data);
		        } catch (e) { }
		        break;

		      case 'connect':
		        packet.qs = data || '';
		        break;

		      case 'ack':
		        var pieces = data.match(/^([0-9]+)(\+)?(.*)/);
		        if (pieces) {
		          packet.ackId = pieces[1];
		          packet.args = [];

		          if (pieces[3]) {
		            try {
		              packet.args = pieces[3] ? JSON.parse(pieces[3]) : [];
		            } catch (e) { }
		          }
		        }
		        break;

		      case 'disconnect':
		      case 'heartbeat':
		        break;
		    };

		    return packet;
		  };

		  /**
		   * Decodes data payload. Detects multiple messages
		   *
		   * @return {Array} messages
		   * @api public
		   */

		  parser.decodePayload = function (data) {
		    // IE doesn't like data[i] for unicode chars, charAt works fine
		    if (data.charAt(0) == '\ufffd') {
		      var ret = [];

		      for (var i = 1, length = ''; i < data.length; i++) {
		        if (data.charAt(i) == '\ufffd') {
		          ret.push(parser.decodePacket(data.substr(i + 1).substr(0, length)));
		          i += Number(length) + 1;
		          length = '';
		        } else {
		          length += data.charAt(i);
		        }
		      }

		      return ret;
		    } else {
		      return [parser.decodePacket(data)];
		    }
		  };

		})(
		    'undefined' != typeof io ? io : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		);
		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io) {

		  /**
		   * Expose constructor.
		   */

		  exports.Transport = Transport;

		  /**
		   * This is the transport template for all supported transport methods.
		   *
		   * @constructor
		   * @api public
		   */

		  function Transport (socket, sessid) {
		    this.socket = socket;
		    this.sessid = sessid;
		  };

		  /**
		   * Apply EventEmitter mixin.
		   */

		  io.util.mixin(Transport, io.EventEmitter);


		  /**
		   * Indicates whether heartbeats is enabled for this transport
		   *
		   * @api private
		   */

		  Transport.prototype.heartbeats = function () {
		    return true;
		  };

		  /**
		   * Handles the response from the server. When a new response is received
		   * it will automatically update the timeout, decode the message and
		   * forwards the response to the onMessage function for further processing.
		   *
		   * @param {String} data Response from the server.
		   * @api private
		   */

		  Transport.prototype.onData = function (data) {
		    this.clearCloseTimeout();

		    // If the connection in currently open (or in a reopening state) reset the close
		    // timeout since we have just received data. This check is necessary so
		    // that we don't reset the timeout on an explicitly disconnected connection.
		    if (this.socket.connected || this.socket.connecting || this.socket.reconnecting) {
		      this.setCloseTimeout();
		    }

		    if (data !== '') {
		      // todo: we should only do decodePayload for xhr transports
		      var msgs = io.parser.decodePayload(data);

		      if (msgs && msgs.length) {
		        for (var i = 0, l = msgs.length; i < l; i++) {
		          this.onPacket(msgs[i]);
		        }
		      }
		    }

		    return this;
		  };

		  /**
		   * Handles packets.
		   *
		   * @api private
		   */

		  Transport.prototype.onPacket = function (packet) {
		    this.socket.setHeartbeatTimeout();

		    if (packet.type == 'heartbeat') {
		      return this.onHeartbeat();
		    }

		    if (packet.type == 'connect' && packet.endpoint == '') {
		      this.onConnect();
		    }

		    if (packet.type == 'error' && packet.advice == 'reconnect') {
		      this.isOpen = false;
		    }

		    this.socket.onPacket(packet);

		    return this;
		  };

		  /**
		   * Sets close timeout
		   *
		   * @api private
		   */

		  Transport.prototype.setCloseTimeout = function () {
		    if (!this.closeTimeout) {
		      var self = this;

		      this.closeTimeout = setTimeout(function () {
		        self.onDisconnect();
		      }, this.socket.closeTimeout);
		    }
		  };

		  /**
		   * Called when transport disconnects.
		   *
		   * @api private
		   */

		  Transport.prototype.onDisconnect = function () {
		    if (this.isOpen) this.close();
		    this.clearTimeouts();
		    this.socket.onDisconnect();
		    return this;
		  };

		  /**
		   * Called when transport connects
		   *
		   * @api private
		   */

		  Transport.prototype.onConnect = function () {
		    this.socket.onConnect();
		    return this;
		  };

		  /**
		   * Clears close timeout
		   *
		   * @api private
		   */

		  Transport.prototype.clearCloseTimeout = function () {
		    if (this.closeTimeout) {
		      clearTimeout(this.closeTimeout);
		      this.closeTimeout = null;
		    }
		  };

		  /**
		   * Clear timeouts
		   *
		   * @api private
		   */

		  Transport.prototype.clearTimeouts = function () {
		    this.clearCloseTimeout();

		    if (this.reopenTimeout) {
		      clearTimeout(this.reopenTimeout);
		    }
		  };

		  /**
		   * Sends a packet
		   *
		   * @param {Object} packet object.
		   * @api private
		   */

		  Transport.prototype.packet = function (packet) {
		    this.send(io.parser.encodePacket(packet));
		  };

		  /**
		   * Send the received heartbeat message back to server. So the server
		   * knows we are still connected.
		   *
		   * @param {String} heartbeat Heartbeat response from the server.
		   * @api private
		   */

		  Transport.prototype.onHeartbeat = function (heartbeat) {
		    this.packet({ type: 'heartbeat' });
		  };

		  /**
		   * Called when the transport opens.
		   *
		   * @api private
		   */

		  Transport.prototype.onOpen = function () {
		    this.isOpen = true;
		    this.clearCloseTimeout();
		    this.socket.onOpen();
		  };

		  /**
		   * Notifies the base when the connection with the Socket.IO server
		   * has been disconnected.
		   *
		   * @api private
		   */

		  Transport.prototype.onClose = function () {
		    var self = this;

		    /* FIXME: reopen delay causing a infinit loop
		    this.reopenTimeout = setTimeout(function () {
		      self.open();
		    }, this.socket.options['reopen delay']);*/

		    this.isOpen = false;
		    this.socket.onClose();
		    this.onDisconnect();
		  };

		  /**
		   * Generates a connection url based on the Socket.IO URL Protocol.
		   * See <https://github.com/learnboost/socket.io-node/> for more details.
		   *
		   * @returns {String} Connection url
		   * @api private
		   */

		  Transport.prototype.prepareUrl = function () {
		    var options = this.socket.options;

		    return this.scheme() + '://'
		      + options.host + ':' + options.port + '/'
		      + options.resource + '/' + io.protocol
		      + '/' + this.name + '/' + this.sessid;
		  };

		  /**
		   * Checks if the transport is ready to start a connection.
		   *
		   * @param {Socket} socket The socket instance that needs a transport
		   * @param {Function} fn The callback
		   * @api private
		   */

		  Transport.prototype.ready = function (socket, fn) {
		    fn.call(this);
		  };
		})(
		    'undefined' != typeof io ? io : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		);
		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io, global) {

		  /**
		   * Expose constructor.
		   */

		  exports.Socket = Socket;

		  /**
		   * Create a new `Socket.IO client` which can establish a persistent
		   * connection with a Socket.IO enabled server.
		   *
		   * @api public
		   */

		  function Socket (options) {
		    this.options = {
		        port: 80
		      , secure: false
		      , document: 'document' in global ? document : false
		      , resource: 'socket.io'
		      , transports: io.transports
		      , 'connect timeout': 10000
		      , 'try multiple transports': true
		      , 'reconnect': true
		      , 'reconnection delay': 500
		      , 'reconnection limit': Infinity
		      , 'reopen delay': 3000
		      , 'max reconnection attempts': 10
		      , 'sync disconnect on unload': false
		      , 'auto connect': true
		      , 'flash policy port': 10843
		      , 'manualFlush': false
		    };

		    io.util.merge(this.options, options);

		    this.connected = false;
		    this.open = false;
		    this.connecting = false;
		    this.reconnecting = false;
		    this.namespaces = {};
		    this.buffer = [];
		    this.doBuffer = false;

		    if (this.options['sync disconnect on unload'] &&
		        (!this.isXDomain() || io.util.ua.hasCORS)) {
		      var self = this;
		      io.util.on(global, 'beforeunload', function () {
		        self.disconnectSync();
		      }, false);
		    }

		    if (this.options['auto connect']) {
		      this.connect();
		    }
		};

		  /**
		   * Apply EventEmitter mixin.
		   */

		  io.util.mixin(Socket, io.EventEmitter);

		  /**
		   * Returns a namespace listener/emitter for this socket
		   *
		   * @api public
		   */

		  Socket.prototype.of = function (name) {
		    if (!this.namespaces[name]) {
		      this.namespaces[name] = new io.SocketNamespace(this, name);

		      if (name !== '') {
		        this.namespaces[name].packet({ type: 'connect' });
		      }
		    }

		    return this.namespaces[name];
		  };

		  /**
		   * Emits the given event to the Socket and all namespaces
		   *
		   * @api private
		   */

		  Socket.prototype.publish = function () {
		    this.emit.apply(this, arguments);

		    var nsp;

		    for (var i in this.namespaces) {
		      if (this.namespaces.hasOwnProperty(i)) {
		        nsp = this.of(i);
		        nsp.$emit.apply(nsp, arguments);
		      }
		    }
		  };

		  /**
		   * Performs the handshake
		   *
		   * @api private
		   */

		  function empty () { };

		  Socket.prototype.handshake = function (fn) {
		    var self = this
		      , options = this.options;

		    function complete (data) {
		      if (data instanceof Error) {
		        self.connecting = false;
		        self.onError(data.message);
		      } else {
		        fn.apply(null, data.split(':'));
		      }
		    };

		    var url = [
		          'http' + (options.secure ? 's' : '') + ':/'
		        , options.host + ':' + options.port
		        , options.resource
		        , io.protocol
		        , io.util.query(this.options.query, 't=' + +new Date)
		      ].join('/');

		    if (this.isXDomain() && !io.util.ua.hasCORS) {
		      var insertAt = document.getElementsByTagName('script')[0]
		        , script = document.createElement('script');

		      script.src = url + '&jsonp=' + io.j.length;
		      insertAt.parentNode.insertBefore(script, insertAt);

		      io.j.push(function (data) {
		        complete(data);
		        script.parentNode.removeChild(script);
		      });
		    } else {
		      var xhr = io.util.request();

		      xhr.open('GET', url, true);
		      if (this.isXDomain()) {
		        xhr.withCredentials = true;
		      }
		      xhr.onreadystatechange = function () {
		        if (xhr.readyState == 4) {
		          xhr.onreadystatechange = empty;

		          if (xhr.status == 200) {
		            complete(xhr.responseText);
		          } else if (xhr.status == 403) {
		            self.onError(xhr.responseText);
		          } else {
		            self.connecting = false;
		            !self.reconnecting && self.onError(xhr.responseText);
		          }
		        }
		      };
		      xhr.send(null);
		    }
		  };

		  /**
		   * Find an available transport based on the options supplied in the constructor.
		   *
		   * @api private
		   */

		  Socket.prototype.getTransport = function (override) {
		    var transports = override || this.transports, match;

		    for (var i = 0, transport; transport = transports[i]; i++) {
		      if (io.Transport[transport]
		        && io.Transport[transport].check(this)
		        && (!this.isXDomain() || io.Transport[transport].xdomainCheck(this))) {
		        return new io.Transport[transport](this, this.sessionid);
		      }
		    }

		    return null;
		  };

		  /**
		   * Connects to the server.
		   *
		   * @param {Function} [fn] Callback.
		   * @returns {io.Socket}
		   * @api public
		   */

		  Socket.prototype.connect = function (fn) {
		    if (this.connecting) {
		      return this;
		    }

		    var self = this;
		    self.connecting = true;

		    this.handshake(function (sid, heartbeat, close, transports) {
		      self.sessionid = sid;
		      self.closeTimeout = close * 1000;
		      self.heartbeatTimeout = heartbeat * 1000;
		      if(!self.transports)
		          self.transports = self.origTransports = (transports ? io.util.intersect(
		              transports.split(',')
		            , self.options.transports
		          ) : self.options.transports);

		      self.setHeartbeatTimeout();

		      function connect (transports){
		        if (self.transport) self.transport.clearTimeouts();

		        self.transport = self.getTransport(transports);
		        if (!self.transport) return self.publish('connect_failed');

		        // once the transport is ready
		        self.transport.ready(self, function () {
		          self.connecting = true;
		          self.publish('connecting', self.transport.name);
		          self.transport.open();

		          if (self.options['connect timeout']) {
		            self.connectTimeoutTimer = setTimeout(function () {
		              if (!self.connected) {
		                self.connecting = false;

		                if (self.options['try multiple transports']) {
		                  var remaining = self.transports;

		                  while (remaining.length > 0 && remaining.splice(0,1)[0] !=
		                         self.transport.name) {}

		                    if (remaining.length){
		                      connect(remaining);
		                    } else {
		                      self.publish('connect_failed');
		                    }
		                }
		              }
		            }, self.options['connect timeout']);
		          }
		        });
		      }

		      connect(self.transports);

		      self.once('connect', function (){
		        clearTimeout(self.connectTimeoutTimer);

		        fn && typeof fn == 'function' && fn();
		      });
		    });

		    return this;
		  };

		  /**
		   * Clears and sets a new heartbeat timeout using the value given by the
		   * server during the handshake.
		   *
		   * @api private
		   */

		  Socket.prototype.setHeartbeatTimeout = function () {
		    clearTimeout(this.heartbeatTimeoutTimer);
		    if(this.transport && !this.transport.heartbeats()) return;

		    var self = this;
		    this.heartbeatTimeoutTimer = setTimeout(function () {
		      self.transport.onClose();
		    }, this.heartbeatTimeout);
		  };

		  /**
		   * Sends a message.
		   *
		   * @param {Object} data packet.
		   * @returns {io.Socket}
		   * @api public
		   */

		  Socket.prototype.packet = function (data) {
		    if (this.connected && !this.doBuffer) {
		      this.transport.packet(data);
		    } else {
		      this.buffer.push(data);
		    }

		    return this;
		  };

		  /**
		   * Sets buffer state
		   *
		   * @api private
		   */

		  Socket.prototype.setBuffer = function (v) {
		    this.doBuffer = v;

		    if (!v && this.connected && this.buffer.length) {
		      if (!this.options['manualFlush']) {
		        this.flushBuffer();
		      }
		    }
		  };

		  /**
		   * Flushes the buffer data over the wire.
		   * To be invoked manually when 'manualFlush' is set to true.
		   *
		   * @api public
		   */

		  Socket.prototype.flushBuffer = function() {
		    this.transport.payload(this.buffer);
		    this.buffer = [];
		  };


		  /**
		   * Disconnect the established connect.
		   *
		   * @returns {io.Socket}
		   * @api public
		   */

		  Socket.prototype.disconnect = function () {
		    if (this.connected || this.connecting) {
		      if (this.open) {
		        this.of('').packet({ type: 'disconnect' });
		      }

		      // handle disconnection immediately
		      this.onDisconnect('booted');
		    }

		    return this;
		  };

		  /**
		   * Disconnects the socket with a sync XHR.
		   *
		   * @api private
		   */

		  Socket.prototype.disconnectSync = function () {
		    // ensure disconnection
		    var xhr = io.util.request();
		    var uri = [
		        'http' + (this.options.secure ? 's' : '') + ':/'
		      , this.options.host + ':' + this.options.port
		      , this.options.resource
		      , io.protocol
		      , ''
		      , this.sessionid
		    ].join('/') + '/?disconnect=1';

		    xhr.open('GET', uri, false);
		    xhr.send(null);

		    // handle disconnection immediately
		    this.onDisconnect('booted');
		  };

		  /**
		   * Check if we need to use cross domain enabled transports. Cross domain would
		   * be a different port or different domain name.
		   *
		   * @returns {Boolean}
		   * @api private
		   */

		  Socket.prototype.isXDomain = function () {

		    var port = global.location.port ||
		      ('https:' == global.location.protocol ? 443 : 80);

		    return this.options.host !== global.location.hostname
		      || this.options.port != port;
		  };

		  /**
		   * Called upon handshake.
		   *
		   * @api private
		   */

		  Socket.prototype.onConnect = function () {
		    if (!this.connected) {
		      this.connected = true;
		      this.connecting = false;
		      if (!this.doBuffer) {
		        // make sure to flush the buffer
		        this.setBuffer(false);
		      }
		      this.emit('connect');
		    }
		  };

		  /**
		   * Called when the transport opens
		   *
		   * @api private
		   */

		  Socket.prototype.onOpen = function () {
		    this.open = true;
		  };

		  /**
		   * Called when the transport closes.
		   *
		   * @api private
		   */

		  Socket.prototype.onClose = function () {
		    this.open = false;
		    clearTimeout(this.heartbeatTimeoutTimer);
		  };

		  /**
		   * Called when the transport first opens a connection
		   *
		   * @param text
		   */

		  Socket.prototype.onPacket = function (packet) {
		    this.of(packet.endpoint).onPacket(packet);
		  };

		  /**
		   * Handles an error.
		   *
		   * @api private
		   */

		  Socket.prototype.onError = function (err) {
		    if (err && err.advice) {
		      if (err.advice === 'reconnect' && (this.connected || this.connecting)) {
		        this.disconnect();
		        if (this.options.reconnect) {
		          this.reconnect();
		        }
		      }
		    }

		    this.publish('error', err && err.reason ? err.reason : err);
		  };

		  /**
		   * Called when the transport disconnects.
		   *
		   * @api private
		   */

		  Socket.prototype.onDisconnect = function (reason) {
		    var wasConnected = this.connected
		      , wasConnecting = this.connecting;

		    this.connected = false;
		    this.connecting = false;
		    this.open = false;

		    if (wasConnected || wasConnecting) {
		      this.transport.close();
		      this.transport.clearTimeouts();
		      if (wasConnected) {
		        this.publish('disconnect', reason);

		        if ('booted' != reason && this.options.reconnect && !this.reconnecting) {
		          this.reconnect();
		        }
		      }
		    }
		  };

		  /**
		   * Called upon reconnection.
		   *
		   * @api private
		   */

		  Socket.prototype.reconnect = function () {
		    this.reconnecting = true;
		    this.reconnectionAttempts = 0;
		    this.reconnectionDelay = this.options['reconnection delay'];

		    var self = this
		      , maxAttempts = this.options['max reconnection attempts']
		      , tryMultiple = this.options['try multiple transports']
		      , limit = this.options['reconnection limit'];

		    function reset () {
		      if (self.connected) {
		        for (var i in self.namespaces) {
		          if (self.namespaces.hasOwnProperty(i) && '' !== i) {
		              self.namespaces[i].packet({ type: 'connect' });
		          }
		        }
		        self.publish('reconnect', self.transport.name, self.reconnectionAttempts);
		      }

		      clearTimeout(self.reconnectionTimer);

		      self.removeListener('connect_failed', maybeReconnect);
		      self.removeListener('connect', maybeReconnect);

		      self.reconnecting = false;

		      delete self.reconnectionAttempts;
		      delete self.reconnectionDelay;
		      delete self.reconnectionTimer;
		      delete self.redoTransports;

		      self.options['try multiple transports'] = tryMultiple;
		    };

		    function maybeReconnect () {
		      if (!self.reconnecting) {
		        return;
		      }

		      if (self.connected) {
		        return reset();
		      };

		      if (self.connecting && self.reconnecting) {
		        return self.reconnectionTimer = setTimeout(maybeReconnect, 1000);
		      }

		      if (self.reconnectionAttempts++ >= maxAttempts) {
		        if (!self.redoTransports) {
		          self.on('connect_failed', maybeReconnect);
		          self.options['try multiple transports'] = true;
		          self.transports = self.origTransports;
		          self.transport = self.getTransport();
		          self.redoTransports = true;
		          self.connect();
		        } else {
		          self.publish('reconnect_failed');
		          reset();
		        }
		      } else {
		        if (self.reconnectionDelay < limit) {
		          self.reconnectionDelay *= 2; // exponential back off
		        }

		        self.connect();
		        self.publish('reconnecting', self.reconnectionDelay, self.reconnectionAttempts);
		        self.reconnectionTimer = setTimeout(maybeReconnect, self.reconnectionDelay);
		      }
		    };

		    this.options['try multiple transports'] = false;
		    this.reconnectionTimer = setTimeout(maybeReconnect, this.reconnectionDelay);

		    this.on('connect', maybeReconnect);
		  };

		})(
		    'undefined' != typeof io ? io : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		  , global
		);
		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io) {

		  /**
		   * Expose constructor.
		   */

		  exports.SocketNamespace = SocketNamespace;

		  /**
		   * Socket namespace constructor.
		   *
		   * @constructor
		   * @api public
		   */

		  function SocketNamespace (socket, name) {
		    this.socket = socket;
		    this.name = name || '';
		    this.flags = {};
		    this.json = new Flag(this, 'json');
		    this.ackPackets = 0;
		    this.acks = {};
		  };

		  /**
		   * Apply EventEmitter mixin.
		   */

		  io.util.mixin(SocketNamespace, io.EventEmitter);

		  /**
		   * Copies emit since we override it
		   *
		   * @api private
		   */

		  SocketNamespace.prototype.$emit = io.EventEmitter.prototype.emit;

		  /**
		   * Creates a new namespace, by proxying the request to the socket. This
		   * allows us to use the synax as we do on the server.
		   *
		   * @api public
		   */

		  SocketNamespace.prototype.of = function () {
		    return this.socket.of.apply(this.socket, arguments);
		  };

		  /**
		   * Sends a packet.
		   *
		   * @api private
		   */

		  SocketNamespace.prototype.packet = function (packet) {
		    packet.endpoint = this.name;
		    this.socket.packet(packet);
		    this.flags = {};
		    return this;
		  };

		  /**
		   * Sends a message
		   *
		   * @api public
		   */

		  SocketNamespace.prototype.send = function (data, fn) {
		    var packet = {
		        type: this.flags.json ? 'json' : 'message'
		      , data: data
		    };

		    if ('function' == typeof fn) {
		      packet.id = ++this.ackPackets;
		      packet.ack = true;
		      this.acks[packet.id] = fn;
		    }

		    return this.packet(packet);
		  };

		  /**
		   * Emits an event
		   *
		   * @api public
		   */

		  SocketNamespace.prototype.emit = function (name) {
		    var args = Array.prototype.slice.call(arguments, 1)
		      , lastArg = args[args.length - 1]
		      , packet = {
		            type: 'event'
		          , name: name
		        };

		    if ('function' == typeof lastArg) {
		      packet.id = ++this.ackPackets;
		      packet.ack = 'data';
		      this.acks[packet.id] = lastArg;
		      args = args.slice(0, args.length - 1);
		    }

		    packet.args = args;

		    return this.packet(packet);
		  };

		  /**
		   * Disconnects the namespace
		   *
		   * @api private
		   */

		  SocketNamespace.prototype.disconnect = function () {
		    if (this.name === '') {
		      this.socket.disconnect();
		    } else {
		      this.packet({ type: 'disconnect' });
		      this.$emit('disconnect');
		    }

		    return this;
		  };

		  /**
		   * Handles a packet
		   *
		   * @api private
		   */

		  SocketNamespace.prototype.onPacket = function (packet) {
		    var self = this;

		    function ack () {
		      self.packet({
		          type: 'ack'
		        , args: io.util.toArray(arguments)
		        , ackId: packet.id
		      });
		    };

		    switch (packet.type) {
		      case 'connect':
		        this.$emit('connect');
		        break;

		      case 'disconnect':
		        if (this.name === '') {
		          this.socket.onDisconnect(packet.reason || 'booted');
		        } else {
		          this.$emit('disconnect', packet.reason);
		        }
		        break;

		      case 'message':
		      case 'json':
		        var params = ['message', packet.data];

		        if (packet.ack == 'data') {
		          params.push(ack);
		        } else if (packet.ack) {
		          this.packet({ type: 'ack', ackId: packet.id });
		        }

		        this.$emit.apply(this, params);
		        break;

		      case 'event':
		        var params = [packet.name].concat(packet.args);

		        if (packet.ack == 'data')
		          params.push(ack);

		        this.$emit.apply(this, params);
		        break;

		      case 'ack':
		        if (this.acks[packet.ackId]) {
		          this.acks[packet.ackId].apply(this, packet.args);
		          delete this.acks[packet.ackId];
		        }
		        break;

		      case 'error':
		        if (packet.advice){
		          this.socket.onError(packet);
		        } else {
		          if (packet.reason == 'unauthorized') {
		            this.$emit('connect_failed', packet.reason);
		          } else {
		            this.$emit('error', packet.reason);
		          }
		        }
		        break;
		    }
		  };

		  /**
		   * Flag interface.
		   *
		   * @api private
		   */

		  function Flag (nsp, name) {
		    this.namespace = nsp;
		    this.name = name;
		  };

		  /**
		   * Send a message
		   *
		   * @api public
		   */

		  Flag.prototype.send = function () {
		    this.namespace.flags[this.name] = true;
		    this.namespace.send.apply(this.namespace, arguments);
		  };

		  /**
		   * Emit an event
		   *
		   * @api public
		   */

		  Flag.prototype.emit = function () {
		    this.namespace.flags[this.name] = true;
		    this.namespace.emit.apply(this.namespace, arguments);
		  };

		})(
		    'undefined' != typeof io ? io : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		);

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io, global) {

		  /**
		   * Expose constructor.
		   */

		  exports.websocket = WS;

		  /**
		   * The WebSocket transport uses the HTML5 WebSocket API to establish an
		   * persistent connection with the Socket.IO server. This transport will also
		   * be inherited by the FlashSocket fallback as it provides a API compatible
		   * polyfill for the WebSockets.
		   *
		   * @constructor
		   * @extends {io.Transport}
		   * @api public
		   */

		  function WS (socket) {
		    io.Transport.apply(this, arguments);
		  };

		  /**
		   * Inherits from Transport.
		   */

		  io.util.inherit(WS, io.Transport);

		  /**
		   * Transport name
		   *
		   * @api public
		   */

		  WS.prototype.name = 'websocket';

		  /**
		   * Initializes a new `WebSocket` connection with the Socket.IO server. We attach
		   * all the appropriate listeners to handle the responses from the server.
		   *
		   * @returns {Transport}
		   * @api public
		   */

		  WS.prototype.open = function () {
		    var query = io.util.query(this.socket.options.query)
		      , self = this
		      , Socket


		    if (!Socket) {
		      Socket = global.MozWebSocket || global.WebSocket;
		    }

		    this.websocket = new Socket(this.prepareUrl() + query);

		    this.websocket.onopen = function () {
		      self.onOpen();
		      self.socket.setBuffer(false);
		    };
		    this.websocket.onmessage = function (ev) {
		      self.onData(ev.data);
		    };
		    this.websocket.onclose = function () {
		      self.onClose();
		      self.socket.setBuffer(true);
		    };
		    this.websocket.onerror = function (e) {
		      self.onError(e);
		    };

		    return this;
		  };

		  /**
		   * Send a message to the Socket.IO server. The message will automatically be
		   * encoded in the correct message format.
		   *
		   * @returns {Transport}
		   * @api public
		   */

		  // Do to a bug in the current IDevices browser, we need to wrap the send in a
		  // setTimeout, when they resume from sleeping the browser will crash if
		  // we don't allow the browser time to detect the socket has been closed
		  if (io.util.ua.iDevice) {
		    WS.prototype.send = function (data) {
		      var self = this;
		      setTimeout(function() {
		         self.websocket.send(data);
		      },0);
		      return this;
		    };
		  } else {
		    WS.prototype.send = function (data) {
		      this.websocket.send(data);
		      return this;
		    };
		  }

		  /**
		   * Payload
		   *
		   * @api private
		   */

		  WS.prototype.payload = function (arr) {
		    for (var i = 0, l = arr.length; i < l; i++) {
		      this.packet(arr[i]);
		    }
		    return this;
		  };

		  /**
		   * Disconnect the established `WebSocket` connection.
		   *
		   * @returns {Transport}
		   * @api public
		   */

		  WS.prototype.close = function () {
		    this.websocket.close();
		    return this;
		  };

		  /**
		   * Handle the errors that `WebSocket` might be giving when we
		   * are attempting to connect or send messages.
		   *
		   * @param {Error} e The error.
		   * @api private
		   */

		  WS.prototype.onError = function (e) {
		    this.socket.onError(e);
		  };

		  /**
		   * Returns the appropriate scheme for the URI generation.
		   *
		   * @api private
		   */
		  WS.prototype.scheme = function () {
		    return this.socket.options.secure ? 'wss' : 'ws';
		  };

		  /**
		   * Checks if the browser has support for native `WebSockets` and that
		   * it's not the polyfill created for the FlashSocket transport.
		   *
		   * @return {Boolean}
		   * @api public
		   */

		  WS.check = function () {
		    return ('WebSocket' in global && !('__addTask' in WebSocket))
		          || 'MozWebSocket' in global;
		  };

		  /**
		   * Check if the `WebSocket` transport support cross domain communications.
		   *
		   * @returns {Boolean}
		   * @api public
		   */

		  WS.xdomainCheck = function () {
		    return true;
		  };

		  /**
		   * Add the transport to your public io.transports array.
		   *
		   * @api private
		   */

		  io.transports.push('websocket');

		})(
		    'undefined' != typeof io ? io.Transport : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		  , global
		);

		// Copyright: Hiroshi Ichikawa <http://gimite.net/en/>
		// License: New BSD License
		// Reference: http://dev.w3.org/html5/websockets/
		// Reference: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol

		(function() {

		  if ('undefined' == typeof window || window.WebSocket) return;

		  var console = window.console;
		  if (!console || !console.log || !console.error) {
		    console = {log: function(){ }, error: function(){ }};
		  }

		  if (!swfobject.hasFlashPlayerVersion("10.0.0")) {
		    console.error("Flash Player >= 10.0.0 is required.");
		    return;
		  }
		  if (location.protocol == "file:") {
		    console.error(
		      "WARNING: web-socket-js doesn't work in file:///... URL " +
		      "unless you set Flash Security Settings properly. " +
		      "Open the page via Web server i.e. http://...");
		  }

		  /**
		   * This class represents a faux web socket.
		   * @param {string} url
		   * @param {array or string} protocols
		   * @param {string} proxyHost
		   * @param {int} proxyPort
		   * @param {string} headers
		   */
		  WebSocket = function(url, protocols, proxyHost, proxyPort, headers) {
		    var self = this;
		    self.__id = WebSocket.__nextId++;
		    WebSocket.__instances[self.__id] = self;
		    self.readyState = WebSocket.CONNECTING;
		    self.bufferedAmount = 0;
		    self.__events = {};
		    if (!protocols) {
		      protocols = [];
		    } else if (typeof protocols == "string") {
		      protocols = [protocols];
		    }
		    // Uses setTimeout() to make sure __createFlash() runs after the caller sets ws.onopen etc.
		    // Otherwise, when onopen fires immediately, onopen is called before it is set.
		    setTimeout(function() {
		      WebSocket.__addTask(function() {
		        WebSocket.__flash.create(
		            self.__id, url, protocols, proxyHost || null, proxyPort || 0, headers || null);
		      });
		    }, 0);
		  };

		  /**
		   * Send data to the web socket.
		   * @param {string} data  The data to send to the socket.
		   * @return {boolean}  True for success, false for failure.
		   */
		  WebSocket.prototype.send = function(data) {
		    if (this.readyState == WebSocket.CONNECTING) {
		      throw "INVALID_STATE_ERR: Web Socket connection has not been established";
		    }
		    // We use encodeURIComponent() here, because FABridge doesn't work if
		    // the argument includes some characters. We don't use escape() here
		    // because of this:
		    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Functions#escape_and_unescape_Functions
		    // But it looks decodeURIComponent(encodeURIComponent(s)) doesn't
		    // preserve all Unicode characters either e.g. "\uffff" in Firefox.
		    // Note by wtritch: Hopefully this will not be necessary using ExternalInterface.  Will require
		    // additional testing.
		    var result = WebSocket.__flash.send(this.__id, encodeURIComponent(data));
		    if (result < 0) { // success
		      return true;
		    } else {
		      this.bufferedAmount += result;
		      return false;
		    }
		  };

		  /**
		   * Close this web socket gracefully.
		   */
		  WebSocket.prototype.close = function() {
		    if (this.readyState == WebSocket.CLOSED || this.readyState == WebSocket.CLOSING) {
		      return;
		    }
		    this.readyState = WebSocket.CLOSING;
		    WebSocket.__flash.close(this.__id);
		  };

		  /**
		   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
		   *
		   * @param {string} type
		   * @param {function} listener
		   * @param {boolean} useCapture
		   * @return void
		   */
		  WebSocket.prototype.addEventListener = function(type, listener, useCapture) {
		    if (!(type in this.__events)) {
		      this.__events[type] = [];
		    }
		    this.__events[type].push(listener);
		  };

		  /**
		   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
		   *
		   * @param {string} type
		   * @param {function} listener
		   * @param {boolean} useCapture
		   * @return void
		   */
		  WebSocket.prototype.removeEventListener = function(type, listener, useCapture) {
		    if (!(type in this.__events)) return;
		    var events = this.__events[type];
		    for (var i = events.length - 1; i >= 0; --i) {
		      if (events[i] === listener) {
		        events.splice(i, 1);
		        break;
		      }
		    }
		  };

		  /**
		   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
		   *
		   * @param {Event} event
		   * @return void
		   */
		  WebSocket.prototype.dispatchEvent = function(event) {
		    var events = this.__events[event.type] || [];
		    for (var i = 0; i < events.length; ++i) {
		      events[i](event);
		    }
		    var handler = this["on" + event.type];
		    if (handler) handler(event);
		  };

		  /**
		   * Handles an event from Flash.
		   * @param {Object} flashEvent
		   */
		  WebSocket.prototype.__handleEvent = function(flashEvent) {
		    if ("readyState" in flashEvent) {
		      this.readyState = flashEvent.readyState;
		    }
		    if ("protocol" in flashEvent) {
		      this.protocol = flashEvent.protocol;
		    }

		    var jsEvent;
		    if (flashEvent.type == "open" || flashEvent.type == "error") {
		      jsEvent = this.__createSimpleEvent(flashEvent.type);
		    } else if (flashEvent.type == "close") {
		      // TODO implement jsEvent.wasClean
		      jsEvent = this.__createSimpleEvent("close");
		    } else if (flashEvent.type == "message") {
		      var data = decodeURIComponent(flashEvent.message);
		      jsEvent = this.__createMessageEvent("message", data);
		    } else {
		      throw "unknown event type: " + flashEvent.type;
		    }

		    this.dispatchEvent(jsEvent);
		  };

		  WebSocket.prototype.__createSimpleEvent = function(type) {
		    if (document.createEvent && window.Event) {
		      var event = document.createEvent("Event");
		      event.initEvent(type, false, false);
		      return event;
		    } else {
		      return {type: type, bubbles: false, cancelable: false};
		    }
		  };

		  WebSocket.prototype.__createMessageEvent = function(type, data) {
		    if (document.createEvent && window.MessageEvent && !window.opera) {
		      var event = document.createEvent("MessageEvent");
		      event.initMessageEvent("message", false, false, data, null, null, window, null);
		      return event;
		    } else {
		      // IE and Opera, the latter one truncates the data parameter after any 0x00 bytes.
		      return {type: type, data: data, bubbles: false, cancelable: false};
		    }
		  };

		  /**
		   * Define the WebSocket readyState enumeration.
		   */
		  WebSocket.CONNECTING = 0;
		  WebSocket.OPEN = 1;
		  WebSocket.CLOSING = 2;
		  WebSocket.CLOSED = 3;

		  WebSocket.__flash = null;
		  WebSocket.__instances = {};
		  WebSocket.__tasks = [];
		  WebSocket.__nextId = 0;

		  /**
		   * Load a new flash security policy file.
		   * @param {string} url
		   */
		  WebSocket.loadFlashPolicyFile = function(url){
		    WebSocket.__addTask(function() {
		      WebSocket.__flash.loadManualPolicyFile(url);
		    });
		  };

		  /**
		   * Loads WebSocketMain.swf and creates WebSocketMain object in Flash.
		   */
		  WebSocket.__initialize = function() {
		    if (WebSocket.__flash) return;

		    if (WebSocket.__swfLocation) {
		      // For backword compatibility.
		      window.WEB_SOCKET_SWF_LOCATION = WebSocket.__swfLocation;
		    }
		    if (!window.WEB_SOCKET_SWF_LOCATION) {
		      console.error("[WebSocket] set WEB_SOCKET_SWF_LOCATION to location of WebSocketMain.swf");
		      return;
		    }
		    var container = document.createElement("div");
		    container.id = "webSocketContainer";
		    // Hides Flash box. We cannot use display: none or visibility: hidden because it prevents
		    // Flash from loading at least in IE. So we move it out of the screen at (-100, -100).
		    // But this even doesn't work with Flash Lite (e.g. in Droid Incredible). So with Flash
		    // Lite, we put it at (0, 0). This shows 1x1 box visible at left-top corner but this is
		    // the best we can do as far as we know now.
		    container.style.position = "absolute";
		    if (WebSocket.__isFlashLite()) {
		      container.style.left = "0px";
		      container.style.top = "0px";
		    } else {
		      container.style.left = "-100px";
		      container.style.top = "-100px";
		    }
		    var holder = document.createElement("div");
		    holder.id = "webSocketFlash";
		    container.appendChild(holder);
		    document.body.appendChild(container);
		    // See this article for hasPriority:
		    // http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c36cfb8137124318eebc6-7ffd.html
		    swfobject.embedSWF(
		      WEB_SOCKET_SWF_LOCATION,
		      "webSocketFlash",
		      "1" /* width */,
		      "1" /* height */,
		      "10.0.0" /* SWF version */,
		      null,
		      null,
		      {hasPriority: true, swliveconnect : true, allowScriptAccess: "always"},
		      null,
		      function(e) {
		        if (!e.success) {
		          console.error("[WebSocket] swfobject.embedSWF failed");
		        }
		      });
		  };

		  /**
		   * Called by Flash to notify JS that it's fully loaded and ready
		   * for communication.
		   */
		  WebSocket.__onFlashInitialized = function() {
		    // We need to set a timeout here to avoid round-trip calls
		    // to flash during the initialization process.
		    setTimeout(function() {
		      WebSocket.__flash = document.getElementById("webSocketFlash");
		      WebSocket.__flash.setCallerUrl(location.href);
		      WebSocket.__flash.setDebug(!!window.WEB_SOCKET_DEBUG);
		      for (var i = 0; i < WebSocket.__tasks.length; ++i) {
		        WebSocket.__tasks[i]();
		      }
		      WebSocket.__tasks = [];
		    }, 0);
		  };

		  /**
		   * Called by Flash to notify WebSockets events are fired.
		   */
		  WebSocket.__onFlashEvent = function() {
		    setTimeout(function() {
		      try {
		        // Gets events using receiveEvents() instead of getting it from event object
		        // of Flash event. This is to make sure to keep message order.
		        // It seems sometimes Flash events don't arrive in the same order as they are sent.
		        var events = WebSocket.__flash.receiveEvents();
		        for (var i = 0; i < events.length; ++i) {
		          WebSocket.__instances[events[i].webSocketId].__handleEvent(events[i]);
		        }
		      } catch (e) {
		        console.error(e);
		      }
		    }, 0);
		    return true;
		  };

		  // Called by Flash.
		  WebSocket.__log = function(message) {
		    console.log(decodeURIComponent(message));
		  };

		  // Called by Flash.
		  WebSocket.__error = function(message) {
		    console.error(decodeURIComponent(message));
		  };

		  WebSocket.__addTask = function(task) {
		    if (WebSocket.__flash) {
		      task();
		    } else {
		      WebSocket.__tasks.push(task);
		    }
		  };

		  /**
		   * Test if the browser is running flash lite.
		   * @return {boolean} True if flash lite is running, false otherwise.
		   */
		  WebSocket.__isFlashLite = function() {
		    if (!window.navigator || !window.navigator.mimeTypes) {
		      return false;
		    }
		    var mimeType = window.navigator.mimeTypes["application/x-shockwave-flash"];
		    if (!mimeType || !mimeType.enabledPlugin || !mimeType.enabledPlugin.filename) {
		      return false;
		    }
		    return mimeType.enabledPlugin.filename.match(/flashlite/i) ? true : false;
		  };

		  if (!window.WEB_SOCKET_DISABLE_AUTO_INITIALIZATION) {
		    if (window.addEventListener) {
		      window.addEventListener("load", function(){
		        WebSocket.__initialize();
		      }, false);
		    } else {
		      window.attachEvent("onload", function(){
		        WebSocket.__initialize();
		      });
		    }
		  }

		})();

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io, global) {

		  /**
		   * Expose constructor.
		   *
		   * @api public
		   */

		  exports.XHR = XHR;

		  /**
		   * XHR constructor
		   *
		   * @costructor
		   * @api public
		   */

		  function XHR (socket) {
		    if (!socket) return;

		    io.Transport.apply(this, arguments);
		    this.sendBuffer = [];
		  };

		  /**
		   * Inherits from Transport.
		   */

		  io.util.inherit(XHR, io.Transport);

		  /**
		   * Establish a connection
		   *
		   * @returns {Transport}
		   * @api public
		   */

		  XHR.prototype.open = function () {
		    this.socket.setBuffer(false);
		    this.onOpen();
		    this.get();

		    // we need to make sure the request succeeds since we have no indication
		    // whether the request opened or not until it succeeded.
		    this.setCloseTimeout();

		    return this;
		  };

		  /**
		   * Check if we need to send data to the Socket.IO server, if we have data in our
		   * buffer we encode it and forward it to the `post` method.
		   *
		   * @api private
		   */

		  XHR.prototype.payload = function (payload) {
		    var msgs = [];

		    for (var i = 0, l = payload.length; i < l; i++) {
		      msgs.push(io.parser.encodePacket(payload[i]));
		    }

		    this.send(io.parser.encodePayload(msgs));
		  };

		  /**
		   * Send data to the Socket.IO server.
		   *
		   * @param data The message
		   * @returns {Transport}
		   * @api public
		   */

		  XHR.prototype.send = function (data) {
		    this.post(data);
		    return this;
		  };

		  /**
		   * Posts a encoded message to the Socket.IO server.
		   *
		   * @param {String} data A encoded message.
		   * @api private
		   */

		  function empty () { };

		  XHR.prototype.post = function (data) {
		    var self = this;
		    this.socket.setBuffer(true);

		    function stateChange () {
		      if (this.readyState == 4) {
		        this.onreadystatechange = empty;
		        self.posting = false;

		        if (this.status == 200){
		          self.socket.setBuffer(false);
		        } else {
		          self.onClose();
		        }
		      }
		    }

		    function onload () {
		      this.onload = empty;
		      self.socket.setBuffer(false);
		    };

		    this.sendXHR = this.request('POST');

		    if (global.XDomainRequest && this.sendXHR instanceof XDomainRequest) {
		      this.sendXHR.onload = this.sendXHR.onerror = onload;
		    } else {
		      this.sendXHR.onreadystatechange = stateChange;
		    }

		    this.sendXHR.send(data);
		  };

		  /**
		   * Disconnects the established `XHR` connection.
		   *
		   * @returns {Transport}
		   * @api public
		   */

		  XHR.prototype.close = function () {
		    this.onClose();
		    return this;
		  };

		  /**
		   * Generates a configured XHR request
		   *
		   * @param {String} url The url that needs to be requested.
		   * @param {String} method The method the request should use.
		   * @returns {XMLHttpRequest}
		   * @api private
		   */

		  XHR.prototype.request = function (method) {
		    var req = io.util.request(this.socket.isXDomain())
		      , query = io.util.query(this.socket.options.query, 't=' + +new Date);

		    req.open(method || 'GET', this.prepareUrl() + query, true);

		    if (method == 'POST') {
		      try {
		        if (req.setRequestHeader) {
		          req.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
		        } else {
		          // XDomainRequest
		          req.contentType = 'text/plain';
		        }
		      } catch (e) {}
		    }

		    return req;
		  };

		  /**
		   * Returns the scheme to use for the transport URLs.
		   *
		   * @api private
		   */

		  XHR.prototype.scheme = function () {
		    return this.socket.options.secure ? 'https' : 'http';
		  };

		  /**
		   * Check if the XHR transports are supported
		   *
		   * @param {Boolean} xdomain Check if we support cross domain requests.
		   * @returns {Boolean}
		   * @api public
		   */

		  XHR.check = function (socket, xdomain) {
		    try {
		      var request = io.util.request(xdomain),
		          usesXDomReq = (global.XDomainRequest && request instanceof XDomainRequest),
		          socketProtocol = (socket && socket.options && socket.options.secure ? 'https:' : 'http:'),
		          isXProtocol = (global.location && socketProtocol != global.location.protocol);
		      if (request && !(usesXDomReq && isXProtocol)) {
		        return true;
		      }
		    } catch(e) {}

		    return false;
		  };

		  /**
		   * Check if the XHR transport supports cross domain requests.
		   *
		   * @returns {Boolean}
		   * @api public
		   */

		  XHR.xdomainCheck = function (socket) {
		    return XHR.check(socket, true);
		  };

		})(
		    'undefined' != typeof io ? io.Transport : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		  , global
		);
		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io) {

		  /**
		   * Expose constructor.
		   */

		  exports.htmlfile = HTMLFile;

		  /**
		   * The HTMLFile transport creates a `forever iframe` based transport
		   * for Internet Explorer. Regular forever iframe implementations will
		   * continuously trigger the browsers buzy indicators. If the forever iframe
		   * is created inside a `htmlfile` these indicators will not be trigged.
		   *
		   * @constructor
		   * @extends {io.Transport.XHR}
		   * @api public
		   */

		  function HTMLFile (socket) {
		    io.Transport.XHR.apply(this, arguments);
		  };

		  /**
		   * Inherits from XHR transport.
		   */

		  io.util.inherit(HTMLFile, io.Transport.XHR);

		  /**
		   * Transport name
		   *
		   * @api public
		   */

		  HTMLFile.prototype.name = 'htmlfile';

		  /**
		   * Creates a new Ac...eX `htmlfile` with a forever loading iframe
		   * that can be used to listen to messages. Inside the generated
		   * `htmlfile` a reference will be made to the HTMLFile transport.
		   *
		   * @api private
		   */

		  HTMLFile.prototype.get = function () {
		    this.doc = new window[(['Active'].concat('Object').join('X'))]('htmlfile');
		    this.doc.open();
		    this.doc.write('<html></html>');
		    this.doc.close();
		    this.doc.parentWindow.s = this;

		    var iframeC = this.doc.createElement('div');
		    iframeC.className = 'socketio';

		    this.doc.body.appendChild(iframeC);
		    this.iframe = this.doc.createElement('iframe');

		    iframeC.appendChild(this.iframe);

		    var self = this
		      , query = io.util.query(this.socket.options.query, 't='+ +new Date);

		    this.iframe.src = this.prepareUrl() + query;

		    io.util.on(window, 'unload', function () {
		      self.destroy();
		    });
		  };

		  /**
		   * The Socket.IO server will write script tags inside the forever
		   * iframe, this function will be used as callback for the incoming
		   * information.
		   *
		   * @param {String} data The message
		   * @param {document} doc Reference to the context
		   * @api private
		   */

		  HTMLFile.prototype._ = function (data, doc) {
		    this.onData(data);
		    try {
		      var script = doc.getElementsByTagName('script')[0];
		      script.parentNode.removeChild(script);
		    } catch (e) { }
		  };

		  /**
		   * Destroy the established connection, iframe and `htmlfile`.
		   * And calls the `CollectGarbage` function of Internet Explorer
		   * to release the memory.
		   *
		   * @api private
		   */

		  HTMLFile.prototype.destroy = function () {
		    if (this.iframe){
		      try {
		        this.iframe.src = 'about:blank';
		      } catch(e){}

		      this.doc = null;
		      this.iframe.parentNode.removeChild(this.iframe);
		      this.iframe = null;

		      CollectGarbage();
		    }
		  };

		  /**
		   * Disconnects the established connection.
		   *
		   * @returns {Transport} Chaining.
		   * @api public
		   */

		  HTMLFile.prototype.close = function () {
		    this.destroy();
		    return io.Transport.XHR.prototype.close.call(this);
		  };

		  /**
		   * Checks if the browser supports this transport. The browser
		   * must have an `Ac...eXObject` implementation.
		   *
		   * @return {Boolean}
		   * @api public
		   */

		  HTMLFile.check = function (socket) {
		    if (typeof window != "undefined" && (['Active'].concat('Object').join('X')) in window){
		      try {
		        var a = new window[(['Active'].concat('Object').join('X'))]('htmlfile');
		        return a && io.Transport.XHR.check(socket);
		      } catch(e){}
		    }
		    return false;
		  };

		  /**
		   * Check if cross domain requests are supported.
		   *
		   * @returns {Boolean}
		   * @api public
		   */

		  HTMLFile.xdomainCheck = function () {
		    // we can probably do handling for sub-domains, we should
		    // test that it's cross domain but a subdomain here
		    return false;
		  };

		  /**
		   * Add the transport to your public io.transports array.
		   *
		   * @api private
		   */

		  io.transports.push('htmlfile');

		})(
		    'undefined' != typeof io ? io.Transport : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		);

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io, global) {

		  /**
		   * Expose constructor.
		   */

		  exports['xhr-polling'] = XHRPolling;

		  /**
		   * The XHR-polling transport uses long polling XHR requests to create a
		   * "persistent" connection with the server.
		   *
		   * @constructor
		   * @api public
		   */

		  function XHRPolling () {
		    io.Transport.XHR.apply(this, arguments);
		  };

		  /**
		   * Inherits from XHR transport.
		   */

		  io.util.inherit(XHRPolling, io.Transport.XHR);

		  /**
		   * Merge the properties from XHR transport
		   */

		  io.util.merge(XHRPolling, io.Transport.XHR);

		  /**
		   * Transport name
		   *
		   * @api public
		   */

		  XHRPolling.prototype.name = 'xhr-polling';

		  /**
		   * Indicates whether heartbeats is enabled for this transport
		   *
		   * @api private
		   */

		  XHRPolling.prototype.heartbeats = function () {
		    return false;
		  };

		  /**
		   * Establish a connection, for iPhone and Android this will be done once the page
		   * is loaded.
		   *
		   * @returns {Transport} Chaining.
		   * @api public
		   */

		  XHRPolling.prototype.open = function () {
		    var self = this;

		    io.Transport.XHR.prototype.open.call(self);
		    return false;
		  };

		  /**
		   * Starts a XHR request to wait for incoming messages.
		   *
		   * @api private
		   */

		  function empty () {};

		  XHRPolling.prototype.get = function () {
		    if (!this.isOpen) return;

		    var self = this;

		    function stateChange () {
		      if (this.readyState == 4) {
		        this.onreadystatechange = empty;

		        if (this.status == 200) {
		          self.onData(this.responseText);
		          self.get();
		        } else {
		          self.onClose();
		        }
		      }
		    };

		    function onload () {
		      this.onload = empty;
		      this.onerror = empty;
		      self.retryCounter = 1;
		      self.onData(this.responseText);
		      self.get();
		    };

		    function onerror () {
		      self.retryCounter ++;
		      if(!self.retryCounter || self.retryCounter > 3) {
		        self.onClose();
		      } else {
		        self.get();
		      }
		    };

		    this.xhr = this.request();

		    if (global.XDomainRequest && this.xhr instanceof XDomainRequest) {
		      this.xhr.onload = onload;
		      this.xhr.onerror = onerror;
		    } else {
		      this.xhr.onreadystatechange = stateChange;
		    }

		    this.xhr.send(null);
		  };

		  /**
		   * Handle the unclean close behavior.
		   *
		   * @api private
		   */

		  XHRPolling.prototype.onClose = function () {
		    io.Transport.XHR.prototype.onClose.call(this);

		    if (this.xhr) {
		      this.xhr.onreadystatechange = this.xhr.onload = this.xhr.onerror = empty;
		      try {
		        this.xhr.abort();
		      } catch(e){}
		      this.xhr = null;
		    }
		  };

		  /**
		   * Webkit based browsers show a infinit spinner when you start a XHR request
		   * before the browsers onload event is called so we need to defer opening of
		   * the transport until the onload event is called. Wrapping the cb in our
		   * defer method solve this.
		   *
		   * @param {Socket} socket The socket instance that needs a transport
		   * @param {Function} fn The callback
		   * @api private
		   */

		  XHRPolling.prototype.ready = function (socket, fn) {
		    var self = this;

		    io.util.defer(function () {
		      fn.call(self);
		    });
		  };

		  /**
		   * Add the transport to your public io.transports array.
		   *
		   * @api private
		   */

		  io.transports.push('xhr-polling');

		})(
		    'undefined' != typeof io ? io.Transport : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		  , global
		);

		/**
		 * socket.io
		 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
		 * MIT Licensed
		 */

		(function (exports, io, global) {
		  /**
		   * There is a way to hide the loading indicator in Firefox. If you create and
		   * remove a iframe it will stop showing the current loading indicator.
		   * Unfortunately we can't feature detect that and UA sniffing is evil.
		   *
		   * @api private
		   */

		  var indicator = global.document && "MozAppearance" in
		    global.document.documentElement.style;

		  /**
		   * Expose constructor.
		   */

		  exports['jsonp-polling'] = JSONPPolling;

		  /**
		   * The JSONP transport creates an persistent connection by dynamically
		   * inserting a script tag in the page. This script tag will receive the
		   * information of the Socket.IO server. When new information is received
		   * it creates a new script tag for the new data stream.
		   *
		   * @constructor
		   * @extends {io.Transport.xhr-polling}
		   * @api public
		   */

		  function JSONPPolling (socket) {
		    io.Transport['xhr-polling'].apply(this, arguments);

		    this.index = io.j.length;

		    var self = this;

		    io.j.push(function (msg) {
		      self._(msg);
		    });
		  };

		  /**
		   * Inherits from XHR polling transport.
		   */

		  io.util.inherit(JSONPPolling, io.Transport['xhr-polling']);

		  /**
		   * Transport name
		   *
		   * @api public
		   */

		  JSONPPolling.prototype.name = 'jsonp-polling';

		  /**
		   * Posts a encoded message to the Socket.IO server using an iframe.
		   * The iframe is used because script tags can create POST based requests.
		   * The iframe is positioned outside of the view so the user does not
		   * notice it's existence.
		   *
		   * @param {String} data A encoded message.
		   * @api private
		   */

		  JSONPPolling.prototype.post = function (data) {
		    var self = this
		      , query = io.util.query(
		             this.socket.options.query
		          , 't='+ (+new Date) + '&i=' + this.index
		        );

		    if (!this.form) {
		      var form = document.createElement('form')
		        , area = document.createElement('textarea')
		        , id = this.iframeId = 'socketio_iframe_' + this.index
		        , iframe;

		      form.className = 'socketio';
		      form.style.position = 'absolute';
		      form.style.top = '0px';
		      form.style.left = '0px';
		      form.style.display = 'none';
		      form.target = id;
		      form.method = 'POST';
		      form.setAttribute('accept-charset', 'utf-8');
		      area.name = 'd';
		      form.appendChild(area);
		      document.body.appendChild(form);

		      this.form = form;
		      this.area = area;
		    }

		    this.form.action = this.prepareUrl() + query;

		    function complete () {
		      initIframe();
		      self.socket.setBuffer(false);
		    };

		    function initIframe () {
		      if (self.iframe) {
		        self.form.removeChild(self.iframe);
		      }

		      try {
		        // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
		        iframe = document.createElement('<iframe name="'+ self.iframeId +'">');
		      } catch (e) {
		        iframe = document.createElement('iframe');
		        iframe.name = self.iframeId;
		      }

		      iframe.id = self.iframeId;

		      self.form.appendChild(iframe);
		      self.iframe = iframe;
		    };

		    initIframe();

		    // we temporarily stringify until we figure out how to prevent
		    // browsers from turning `\n` into `\r\n` in form inputs
		    this.area.value = io.JSON.stringify(data);

		    try {
		      this.form.submit();
		    } catch(e) {}

		    if (this.iframe.attachEvent) {
		      iframe.onreadystatechange = function () {
		        if (self.iframe.readyState == 'complete') {
		          complete();
		        }
		      };
		    } else {
		      this.iframe.onload = complete;
		    }

		    this.socket.setBuffer(true);
		  };

		  /**
		   * Creates a new JSONP poll that can be used to listen
		   * for messages from the Socket.IO server.
		   *
		   * @api private
		   */

		  JSONPPolling.prototype.get = function () {
		    var self = this
		      , script = document.createElement('script')
		      , query = io.util.query(
		             this.socket.options.query
		          , 't='+ (+new Date) + '&i=' + this.index
		        );

		    if (this.script) {
		      this.script.parentNode.removeChild(this.script);
		      this.script = null;
		    }

		    script.async = true;
		    script.src = this.prepareUrl() + query;
		    script.onerror = function () {
		      self.onClose();
		    };

		    var insertAt = document.getElementsByTagName('script')[0];
		    insertAt.parentNode.insertBefore(script, insertAt);
		    this.script = script;

		    if (indicator) {
		      setTimeout(function () {
		        var iframe = document.createElement('iframe');
		        document.body.appendChild(iframe);
		        document.body.removeChild(iframe);
		      }, 100);
		    }
		  };

		  /**
		   * Callback function for the incoming message stream from the Socket.IO server.
		   *
		   * @param {String} data The message
		   * @api private
		   */

		  JSONPPolling.prototype._ = function (msg) {
		    this.onData(msg);
		    if (this.isOpen) {
		      this.get();
		    }
		    return this;
		  };

		  /**
		   * The indicator hack only works after onload
		   *
		   * @param {Socket} socket The socket instance that needs a transport
		   * @param {Function} fn The callback
		   * @api private
		   */

		  JSONPPolling.prototype.ready = function (socket, fn) {
		    var self = this;
		    if (!indicator) return fn.call(this);

		    io.util.load(function () {
		      fn.call(self);
		    });
		  };

		  /**
		   * Checks if browser supports this transport.
		   *
		   * @return {Boolean}
		   * @api public
		   */

		  JSONPPolling.check = function () {
		    return 'document' in global;
		  };

		  /**
		   * Check if cross domain requests are supported
		   *
		   * @returns {Boolean}
		   * @api public
		   */

		  JSONPPolling.xdomainCheck = function () {
		    return true;
		  };

		  /**
		   * Add the transport to your public io.transports array.
		   *
		   * @api private
		   */

		  io.transports.push('jsonp-polling');

		})(
		    'undefined' != typeof io ? io.Transport : module.exports
		  , 'undefined' != typeof io ? io : module.parent.exports
		  , global
		);

		if (typeof define === "function" && define.amd) {
		  define([], function () { return io; });
		}
	})();

	/* Notes
	 *
	 * - Continue using prefixed names for now.
	 *
	 */

  var webrtcSupported = true;

  var RTCPeerConnection;
  if(window.mozRTCPeerConnection)
    RTCPeerConnection = window.mozRTCPeerConnection;
  else if(window.webkitRTCPeerConnection)
    RTCPeerConnection = window.webkitRTCPeerConnection;
  else if(window.RTCPeerConnection)
    RTCPeerConnection = window.RTCPeerConnection
  else
    webrtcSupported = false;

  var RTCSessionDescription;
  if(window.mozRTCSessionDescription)
    RTCSessionDescription = window.mozRTCSessionDescription;
  else if(window.webkitRTCSessionDescription)
    RTCSessionDescription = window.webkitRTCSessionDescription;
  else if(window.RTCSessionDescription)
    RTCSessionDescription = window.RTCSessionDescription
  else
    webrtcSupported = false;

  var RTCIceCandidate;
  if(window.mozRTCIceCandidate)
    RTCIceCandidate = window.mozRTCIceCandidate;
  else if(window.webkitRTCIceCandidate)
    RTCIceCandidate = window.webkitRTCIceCandidate;
  else if(window.RTCIceCandidate)
    RTCIceCandidate = window.RTCIceCandidate;
  else
    webrtcSupported = false;

  var getUserMedia;
  if(!navigator.getUserMedia) {
    if(navigator.mozGetUserMedia)
      getUserMedia = navigator.mozGetUserMedia.bind(navigator);
    else if(navigator.webkitGetUserMedia)
      getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
    else
      webrtcSupported = false;
  } else {
    getUserMedia = navigator.getUserMedia.bind(navigator);
  }

  // FIXME: browser detection is gross, but I don't see another way to do this
  var RTCConnectProtocol;
  if(window.mozRTCPeerConnection) {
    RTCConnectProtocol = mozRTCConnectProtocol;
  } else if(window.webkitRTCPeerConnection) {
    RTCConnectProtocol = webkitRTCConnectProtocol;
  } else {
    webrtcSupported = false;
  }

  function callback(object, method, args) {
    if(!Array.isArray(args))
      args = [args];
    if(method in object && 'function' === typeof object[method]) {
      object[method].apply(object, args);
    }
  };

  function fail(object, method, error) {
    if (!(error instanceof Error))
      error = new Error(error);
    callback(object, method, [error]);
  };

  function defer(queue, object, method, args) {
    if(queue) {
      queue.push([object, method, args]);
      return true;
    } else {
      return false;
    }
  };

  function processDeferredQueue(queue) {
    while(queue.length) {
      var deferred = queue.shift();
      callback(deferred[0], deferred[1], deferred[2]);
    }
  };

  var ONE_SECOND = 1000; // milliseconds
  var DEFAULT_CONNECTION_TIMEOUT = 10 * ONE_SECOND;
  var DEFAULT_PING_TIMEOUT = 1 * ONE_SECOND;
  var RELIABLE_CHANNEL_OPTIONS = {
    reliable: false
  };
  var UNRELIABLE_CHANNEL_OPTIONS = {
    outOfOrderAllowed: true,
    maxRetransmitNum: 0,
    reliable: false
  };

  function PendingConnectionAbortError(message) {
    this.name = "PendingConnectionAbortError";
    this.message = (message || "");
  };
  PendingConnectionAbortError.prototype = Error.prototype;

  function ConnectionFailedError(message) {
    this.name = "ConnectionFailedError";
    this.message = (message || "");
  };
  ConnectionFailedError.prototype = Error.prototype;

  var E = {
    PendingConnectionAbortError: PendingConnectionAbortError,
    ConnectionFailedError: ConnectionFailedError
  };

  function WebSocketBroker(brokerUrl) {
    this.brokerUrl = brokerUrl;
    this.state = WebSocketBroker.OFFLINE;

    this.onstatechange = null;
    this.onreceive = null;
    this.onerror = null;

    this.socket = null;
    this.route = null;
  };

  // States
  WebSocketBroker.OFFLINE     = 0x01;
  WebSocketBroker.CONNECTING  = 0x02;
  WebSocketBroker.CONNECTED   = 0x04;
  // Flags
  WebSocketBroker.ROUTED      = 0x10;
  WebSocketBroker.LISTENING   = 0x20;

  WebSocketBroker.prototype.setState = function setState(state, clearFlags) {
    var clear = clearFlags ? 0x00 : 0xF0;
    this.state &= clear >>> 0;
    this.state |= state >>> 0;
    callback(this, 'onstatechange', [this.state, (state | (clear & 0x0)) >>> 0]);
  };
  WebSocketBroker.prototype.setFlag = function setFlag(flag) {
    this.state = (this.state | flag) >>> 0;
    callback(this, 'onstatechange', [this.state, flag])
  };
  WebSocketBroker.prototype.clearFlag = function clearFlag(flag) {
    flag = (~flag) >>> 0;
    this.state = (this.state & flag) >>> 0;
    callback(this, 'onstatechange', [this.state, flag])
  };
  WebSocketBroker.prototype.checkState = function checkState(mask) {
    return !!(this.state & mask);
  };
  WebSocketBroker.prototype.connect = function connect() {
    var that = this;
    var socket = io.connect(this.brokerUrl + '/peer', {
      'sync disconnect on unload': true // partially fixes 'interrupted while page loading' warning
    });

    socket.on('connecting', function onconnecting() {
      that.setState(WebSocketBroker.CONNECTING, true);
    });

    socket.on('connect', function onconnect() {
      that.setState(WebSocketBroker.CONNECTED, true);
    });

    socket.on('connect_failed', function onconnect_failed() {
      that.setState(WebSocketBroker.OFFLINE, true);
    });

    socket.on('route', function onroute(route) {
      that.route = route;
      that.setFlag(WebSocketBroker.ROUTED);
    });

    socket.on('disconnect', function ondisconnect() {
      that.setState(WebSocketBroker.OFFLINE, true);
    });

    socket.on('error', function onerror(error) {
    	console.error(error);
      fail(that, 'onerror', error);
    });

    socket.on('receive', function onreceive(message) {
      var from = message['from'];
      var data = message['data'];
      callback(that, 'onreceive', [from, data]);
    });

    this.socket = socket;
  };
  WebSocketBroker.prototype.disconnect = function disconnect() {
    if(this.checkState(WebSocketBroker.CONNECTED)) {
      this.socket.disconnect();
      this.setState(WebSocketBroker.OFFLINE, true);
      return true;
    } else {
      return false;
    }
  };
  WebSocketBroker.prototype.listen = function listen(options) {
    var that = this;
    if(this.checkState(WebSocketBroker.CONNECTED)) {
      this.socket.emit('listen', options, function onresponse(response) {
        if(response && response['error']) {
          var error = new Error(response['error']);
          fail(that, 'onerror', error);
        } else {
          that.setFlag(WebSocketBroker.LISTENING);
        }
      });
    }
  };
  WebSocketBroker.prototype.ignore = function ignore() {
    var that = this;
    if(this.checkState(WebSocketBroker.CONNECTED)) {
      this.socket.emit('ignore', null, function onresponse(response) {
        if(response && response['error']) {
          var error = new Error(response['error']);
          fail(that, 'onerror', error)
        } else {
          that.clearFlag(WebSocketBroker.LISTENING);
        }
      });
    }
  };
  WebSocketBroker.prototype.send = function send(to, message) {
    var that = this;
    if(this.checkState(WebSocketBroker.CONNECTED)) {
      this.socket.emit('send', {'to': to, 'data': message}, function onresponse(response) {
        if(response && response['error']) {
          var error = new Error(response['error']);
          fail(that, 'onerror', error)
        }
      });
    };
  };

  var dataChannels = {
    'reliable': 'RELIABLE',
    'unreliable': 'UNRELIABLE',
    '@control': 'RELIABLE'
  };
  var nextDataConnectionPort = 1;
  function CommonRTCConnectProtocol() {
    // FIXME: these timeouts should be configurable
    this.connectionTimeout = 10 * ONE_SECOND;
    this.pingTimeout = 1 * ONE_SECOND;
  };
  CommonRTCConnectProtocol.prototype.process = function process(message) {
    var that = this;

    var type = message['type'];
    switch(type) {
      case 'ice':
        var candidate = JSON.parse(message['candidate']);
        if(candidate)
          this.handleIce(candidate);
        break;

      case 'offer':
        that.ports.remote = message['port'];
        var offer = {
          'type': 'offer',
          'sdp': message['description']
        };
        this.handleOffer(offer);
        break;

      case 'answer':
        that.ports.remote = message['port'];
        var answer = {
          'type': 'answer',
          'sdp': message['description']
        };
        this.handleAnswer(answer);
        break;

      case 'abort':
        this.handleAbort();
        break;

      default:
        fail(this, 'onerror', 'unknown message');
    }
  };
  CommonRTCConnectProtocol.prototype.handleAbort = function handleAbort() {
    fail(this, 'onerror', new Error(E.RTCConnectProtocolAbort));
  };
  CommonRTCConnectProtocol.prototype.initialize = function initialize(cb) {
    var that = this;

    if(this.peerConnection)
      return cb();

    // FIXME: peer connection servers should be configurable
    this.peerConnection = new RTCPeerConnection(this.connectionServers, this.connectionOptions);
    this.peerConnection.onicecandidate = function(event) {
      var message = {
        'type': 'ice',
        'candidate': JSON.stringify(event.candidate)
      };
      callback(that, 'onmessage', message);
    };
    this.peerConnection.onaddstream = function(event) {
      that.streams['remote'] = event.stream;
    };
    this.peerConnection.onstatechange = function(event) {
      console.log(event.target.readyState);
    };

    function createStream(useFake) {
      useFake = (!useVideo && !useAudio) ? true : useFake;
      var useVideo = !!that.options['video'];
      var useAudio = !!that.options['audio'];
      var mediaOptions = {
        video: useVideo,
        audio: (!useVideo && !useAudio) ? true : useAudio,
        fake: useFake
      };
      getUserMedia(mediaOptions,
        function(stream) {
          that.peerConnection.addStream(stream);
          that.streams['local'] = stream;
          cb();
        },
        function(error) {
          console.error('!', error);
          if(!useFake)
            createStream(true);
          else
            fail(that, 'onerror', error);
        }
      );
    }

    createStream();
  };
  CommonRTCConnectProtocol.prototype.handleIce = function handleIce(candidate) {
    var that = this;

    function setIce() {
      if(!that.peerConnection.remoteDescription) {
        return
      }
      that.peerConnection.addIceCandidate(new RTCIceCandidate(candidate),
        function(error) {
          fail(that, 'onerror', error);
        }
      );
    };

    this.initialize(setIce);
  };
  CommonRTCConnectProtocol.prototype.initiate = function initiate() {
    var that = this;
    this.initiator = true;

    function createDataChannels() {
      var labels = Object.keys(dataChannels);
      labels.forEach(function(label) {
        var channelOptions = that.channelOptions[dataChannels[label]];
        var channel = that._pending[label] = that.peerConnection.createDataChannel(label, channelOptions);
        channel.binaryType = that.options['binaryType'];
        channel.onopen = function() {
          that.channels[label] = channel;
          delete that._pending[label];
          if(Object.keys(that.channels).length === labels.length) {
            that.complete = true;
            callback(that, 'oncomplete', []);
          }
        };
        channel.onerror = function(error) {
          console.error(error);
          fail(that, 'onerror', error);
        };
      });
      createOffer();
    };

    function createOffer() {
      that.peerConnection.createOffer(setLocal,
        function(error) {
          fail(that, 'onerror', error);
        }
      );
    };

    function setLocal(description) {
      that.peerConnection.setLocalDescription(new RTCSessionDescription(description), complete,
        function(error) {
          fail(that, 'onerror', error);
        }
      );

      function complete() {
        var message = {
          'type': 'offer',
          'description': description['sdp'],
          'port': that.ports.local
        };
        callback(that, 'onmessage', message);
      };
    };

    this.initialize(createDataChannels);
  };
  CommonRTCConnectProtocol.prototype.handleOffer = function handleOffer(offer) {
    var that = this;

    function handleDataChannels() {
      var labels = Object.keys(dataChannels);
      that.peerConnection.ondatachannel = function(event) {
        var channel = event.channel;
        var label = channel.label;
        that._pending[label] = channel;
        channel.binaryType = that.options['binaryType'];
        channel.onopen = function() {
          that.channels[label] = channel;
          delete that._pending[label];
          if(Object.keys(that.channels).length === labels.length) {
            that.complete = true;
            callback(that, 'oncomplete', []);
          }
        };
        channel.onerror = function(error) {
          console.error(error);
          fail(that, 'onerror', error);
        };
      };
      setRemote();
    };

    function setRemote() {
      that.peerConnection.setRemoteDescription(new RTCSessionDescription(offer), createAnswer,
        function(error) {
          fail(that, 'onerror', error);
        }
      );
    };

    function createAnswer() {
      that.peerConnection.createAnswer(setLocal,
        function(error) {
          fail(that, 'onerror', error);
        }
      );
    };

    function setLocal(description) {
      that.peerConnection.setLocalDescription(new RTCSessionDescription(description), complete,
        function(error) {
          fail(that, 'onerror', error);
        }
      );

      function complete() {
        var message = {
          'type': 'answer',
          'description': description['sdp'],
          'port': that.ports.local
        };
        callback(that, 'onmessage', message);
      };
    };

    this.initialize(handleDataChannels);
  };
  CommonRTCConnectProtocol.prototype.handleAnswer = function handleAnswer(answer) {
    var that = this;

    function setRemote() {
      that.peerConnection.setRemoteDescription(new RTCSessionDescription(answer), complete,
        function(error) {
          fail(that, 'onerror', error);
        }
      );
    };

    function complete() {
    };

    this.initialize(setRemote);
  };

  function mozRTCConnectProtocol(options) {
    this.options = options;
    this.onmessage = null;
    this.oncomplete = null;
    this.onerror = null;

    this.complete = false;
    this.ports = {
      local: nextDataConnectionPort ++,
      remote: null
    };
    this.streams = {
      local: null,
      remote: null
    };
    this.initiator = false;

    this.peerConnection = null;
    this.channels = {};
    this._pending = {};
    this.connectionServers = null;
    this.connectionOptions = null;
    this.channelOptions = {
      RELIABLE: {
        // defaults
      },
      UNRELIABLE: {
        outOfOrderAllowed: true,
        maxRetransmitNum: 0
      }
    };
  };
  mozRTCConnectProtocol.prototype = new CommonRTCConnectProtocol();
  mozRTCConnectProtocol.prototype.constructor = mozRTCConnectProtocol;

  function webkitRTCConnectProtocol(options) {
    this.options = options;
    this.onmessage = null;
    this.oncomplete = null;
    this.onerror = null;

    this.complete = false;
    this.ports = {
      local: nextDataConnectionPort ++,
      remote: null
    };
    this.streams = {
      local: null,
      remote: null
    };
    this.initiator = false;

    this.peerConnection = null;
    this.channels = {};
    this._pending = {};
    this.connectionServers = {iceServers:[{url:'stun:23.21.150.121'}]};
    this.connectionOptions = {
      'optional': [{ 'RtpDataChannels': true }]
    };
    this.channelOptions = {
      RELIABLE: {
        // FIXME: reliable channels do not work in chrome yet
        reliable: false
      },
      UNRELIABLE: {
        reliable: false
      }
    };
  };
  webkitRTCConnectProtocol.prototype = new CommonRTCConnectProtocol();
  webkitRTCConnectProtocol.prototype.constructor = webkitRTCConnectProtocol;

  // FIXME: this could use a cleanup
  var nextConnectionId = 1;
  function Connection(options, peerConnection, streams, channels) {
    var that = this;
    this.id = nextConnectionId ++;
    this.streams = streams;
    this.connected = false;
    this.messageFlag = false;

    this.onmessage = null;
    this.ondisconnect = null;
    this.onerror = null;

    this.peerConnection = peerConnection;

    // DataChannels
    this.channels = channels;

    this.connectionTimer = null;
    this.pingTimer = null;

    function handleConnectionTimerExpired() {
      if(!that.connected)
        return
      this.connectionTimer = null;
      if(false === that.messageFlag) {
        that.channels['@control'].send('ping');
        this.pingTimer = window.setTimeout(handlePingTimerExpired, options['pingTimeout']);
      } else {
        that.messageFlag = false;
        this.connectionTimer = window.setTimeout(handleConnectionTimerExpired, options['connectionTimeout']);
      }
    };
    function handlePingTimerExpired() {
      if(!that.connected)
        return
      this.pingTimer = null;
      if(false === that.messageFlag) {
        that.connected = false;
        that.close();
      } else {
        that.messageFlag = false;
        this.connectionTimer = window.setTimeout(handleConnectionTimerExpired, options['connectionTimeout']);
      }
    };

    Object.keys(this.channels).forEach(function(label) {
      var channel = that.channels[label];
      if(label.match('^@')) // check for internal channels
        return;

      channel.onmessage = function onmessage(message) {
        that.messageFlag = true;
        callback(that, 'onmessage', [label, message]);
      };
    });
    this.channels['@control'].onmessage = function onmessage(message) {
      that.messageFlag = true;
      if(that.connected) {
        var data = message.data;
        if('ping' === data) {
          that.channels['@control'].send('pong');
        } else if('pong' === data) {
          // ok
        } else if('quit' === data) {
          that.close();
        }
      }
    };

    this.connected = true;
    this.connectionTimer = window.setTimeout(handleConnectionTimerExpired, options['connectionTimeout']);
  };
  Connection.prototype.close = function close() {
    console.log('close connection');
    if(this.connected) {
      this.channels['@control'].send('quit');
    }
    this.connected = false;
    this.peerConnection.close();
    if(this.connectionTimer) {
      window.clearInterval(this.connectionTimer);
      this.connectionTimer = null;
    }
    if(this.pingTimer) {
      window.clearInterval(this.pingTimer);
      this.pingTimer = null;
    }
    this.peerConnection = null;
    callback(this, 'ondisconnect', []);
  };
  Connection.prototype.send = function send(label, message) {
    this.channels[label].send(message);
  };

  function PendingConnection(route, incoming) {
    this.route = route;
    this.incoming = incoming;
    this.proceed = true;
  };
  PendingConnection.prototype.accept = function accept() {
    this.proceed = true;
  };
  PendingConnection.prototype.reject = function reject() {
    this.proceed = false;
  };

  function Peer(brokerUrl, options) {
    if(!webrtcSupported)
      throw new Error("WebRTC not supported");

    var that = this;
    this.brokerUrl = brokerUrl;
    this.options = options = options || {};
    options['binaryType'] = options['binaryType'] || 'arraybuffer';
    options['connectionTimeout'] = options['connectionTimeout'] || 10 * ONE_SECOND;
    options['pingTimeout'] = options['pingTimeout'] || 1 * ONE_SECOND;

    this.onconnection = null;
    this.onpending = null;
    this.onroute = null;
    this.onerror = null;

    this.broker = new WebSocketBroker(brokerUrl);
    this.broker.onerror = function(error) {
    	fail(that, 'onerror', error);
    };
    this.pending = {};

    this.queues = {
      connected: [],
      listening: []
    };

    this.broker.onstatechange = function onstatechange(state, mask) {
      if(that.queues.connected.length && that.broker.checkState(WebSocketBroker.ROUTED)) {
        processDeferredQueue(that.queues.connected);
        if(that.queues.listening.length && that.broker.checkState(WebSocketBroker.LISTENING)) {
          processDeferredQueue(that.queues.listening);
        }
      }
      if(mask & WebSocketBroker.ROUTED) {
        callback(that, 'onroute', that.broker.route);
      }
    };

    this.broker.onreceive = function onreceive(from, message) {
      var handshake;
      if(!that.pending.hasOwnProperty(from)) {
        if(!that.broker.checkState(WebSocketBroker.LISTENING)) {
          return;
        }

        var pendingConnection = new PendingConnection(from, /*incoming*/ true);
        callback(that, 'onpending', [pendingConnection]);
        if(!pendingConnection['proceed'])
          return;

        var handshake = that.pending[from] = new RTCConnectProtocol(that.options);
        handshake.oncomplete = function() {
          var connection = new Connection(that.options, handshake.peerConnection, handshake.streams, handshake.channels);
          connection['route'] = from;
          delete that.pending[from];
          callback(that, 'onconnection', [connection]);
        };
        handshake.onmessage = function(message) {
          that.broker.send(from, message);
        };
        handshake.onerror = function(error) {
          delete that.pending[from];
          callback(that, 'onerror', [error]);
        };
      } else {
        handshake = that.pending[from];
      }
      handshake.process(message);
    };

    this.broker.connect();
  };
  Peer.prototype.listen = function listen(options) {
    if(!this.broker.checkState(WebSocketBroker.ROUTED))
      return defer(this.queues.connected, this, 'listen', [options]);

    options = options || {};
    options['url'] = options['url'] || window.location.toString();
    options['listed'] = (undefined !== options['listed']) ? options['listed'] : true;
    options['metadata'] = options['metadata'] || {};

    this.broker.listen(options);
  };
  Peer.prototype.ignore = function ignore() {
    throw new Error('not implemented');
  };
  Peer.prototype.connect = function connect(route) {
    if(!this.broker.checkState(WebSocketBroker.ROUTED))
      return defer(this.queues.connected, this, 'connect', [route]);

    var that = this;

    if(this.pending.hasOwnProperty(route))
      throw new Error('already connecting to this host'); // FIXME: we can handle this better

    var pendingConnection = new PendingConnection(route, /*incoming*/ false);
    callback(that, 'onpending', [pendingConnection]);
    if(!pendingConnection['proceed'])
      return;

    var handshake = this.pending[route] = new RTCConnectProtocol(this.options);
    handshake.oncomplete = function() {
      var connection = new Connection(this.options, handshake.peerConnection, handshake.streams, handshake.channels);
      connection['route'] = route;
      delete that.pending[route];
      callback(that, 'onconnection', [connection]);
    };
    handshake.onmessage = function(message) {
      that.broker.send(route, message);
    };
    handshake.onerror = function(error) {
      delete that.pending[route];
      fail(that, 'onerror', error);
    };

    handshake.initiate();
  };
  Peer.prototype.close = function close() {
    this.broker.disconnect();
  };
  Peer.E = E;

  return Peer;

});
})(typeof define == 'function' && define.amd
? define
: function (deps, factory) { typeof exports === 'object'
? (module.exports = factory())
: (this.Peer = factory());
},
// Boilerplate for AMD, Node, and browser global
this
);