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/*
    http://www.JSON.org/json2.js
    2011-02-23

    Public Domain.

    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.

    See http://www.JSON.org/js.html


    This code should be minified before deployment.
    See http://javascript.crockford.com/jsmin.html

    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
    NOT CONTROL.


    This file creates a global JSON object containing two methods: stringify
    and parse.

        JSON.stringify(value, replacer, space)
            value       any JavaScript value, usually an object or array.

            replacer    an optional parameter that determines how object
                        values are stringified for objects. It can be a
                        function or an array of strings.

            space       an optional parameter that specifies the indentation
                        of nested structures. If it is omitted, the text will
                        be packed without extra whitespace. If it is a number,
                        it will specify the number of spaces to indent at each
                        level. If it is a string (such as '\t' or '&nbsp;'),
                        it contains the characters used to indent at each level.

            This method produces a JSON text from a JavaScript value.

            When an object value is found, if the object contains a toJSON
            method, its toJSON method will be called and the result will be
            stringified. A toJSON method does not serialize: it returns the
            value represented by the name/value pair that should be serialized,
            or undefined if nothing should be serialized. The toJSON method
            will be passed the key associated with the value, and this will be
            bound to the value

            For example, this would serialize Dates as ISO strings.

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

                    return this.getUTCFullYear()   + '-' +
                         f(this.getUTCMonth() + 1) + '-' +
                         f(this.getUTCDate())      + 'T' +
                         f(this.getUTCHours())     + ':' +
                         f(this.getUTCMinutes())   + ':' +
                         f(this.getUTCSeconds())   + 'Z';
                };

            You can provide an optional replacer method. It will be passed the
            key and value of each member, with this bound to the containing
            object. The value that is returned from your method will be
            serialized. If your method returns undefined, then the member will
            be excluded from the serialization.

            If the replacer parameter is an array of strings, then it will be
            used to select the members to be serialized. It filters the results
            such that only members with keys listed in the replacer array are
            stringified.

            Values that do not have JSON representations, such as undefined or
            functions, will not be serialized. Such values in objects will be
            dropped; in arrays they will be replaced with null. You can use
            a replacer function to replace those with JSON values.
            JSON.stringify(undefined) returns undefined.

            The optional space parameter produces a stringification of the
            value that is filled with line breaks and indentation to make it
            easier to read.

            If the space parameter is a non-empty string, then that string will
            be used for indentation. If the space parameter is a number, then
            the indentation will be that many spaces.

            Example:

            text = JSON.stringify(['e', {pluribus: 'unum'}]);
            // text is '["e",{"pluribus":"unum"}]'


            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'

            text = JSON.stringify([new Date()], function (key, value) {
                return this[key] instanceof Date ?
                    'Date(' + this[key] + ')' : value;
            });
            // text is '["Date(---current time---)"]'


        JSON.parse(text, reviver)
            This method parses a JSON text to produce an object or array.
            It can throw a SyntaxError exception.

            The optional reviver parameter is a function that can filter and
            transform the results. It receives each of the keys and values,
            and its return value is used instead of the original value.
            If it returns what it received, then the structure is not modified.
            If it returns undefined then the member is deleted.

            Example:

            // Parse the text. Values that look like ISO date strings will
            // be converted to Date objects.

            myData = JSON.parse(text, function (key, value) {
                var a;
                if (typeof value === 'string') {
                    a =
/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
                    if (a) {
                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
                            +a[5], +a[6]));
                    }
                }
                return value;
            });

            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
                var d;
                if (typeof value === 'string' &&
                        value.slice(0, 5) === 'Date(' &&
                        value.slice(-1) === ')') {
                    d = new Date(value.slice(5, -1));
                    if (d) {
                        return d;
                    }
                }
                return value;
            });


    This is a reference implementation. You are free to copy, modify, or
    redistribute.
*/

/*jslint evil: true, strict: false, regexp: false */

/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
    lastIndex, length, parse, prototype, push, replace, slice, stringify,
    test, toJSON, toString, valueOf
*/


// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.

var JSON;
if (!JSON) {
    JSON = {};
}

(function () {
    "use strict";

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

    if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return isFinite(this.valueOf()) ?
                this.getUTCFullYear()     + '-' +
                f(this.getUTCMonth() + 1) + '-' +
                f(this.getUTCDate())      + 'T' +
                f(this.getUTCHours())     + ':' +
                f(this.getUTCMinutes())   + ':' +
                f(this.getUTCSeconds())   + 'Z' : null;
        };

        String.prototype.toJSON      =
            Number.prototype.toJSON  =
            Boolean.prototype.toJSON = function (key) {
                return this.valueOf();
            };
    }

    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 && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(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.

    if (typeof JSON.stringify !== 'function') {
        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.

    if (typeof JSON.parse !== 'function') {
        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');
        };
    }
}());
/*
 * ----------------------------- JSTORAGE -------------------------------------
 * Simple local storage wrapper to save data on the browser side, supporting
 * all major browsers - IE6+, Firefox2+, Safari4+, Chrome4+ and Opera 10.5+
 *
 * Author: Andris Reinman, [email protected]
 * Project homepage: www.jstorage.info
 *
 * Licensed under Unlicense:
 *
 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.
 *
 * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * For more information, please refer to <http://unlicense.org/>
 */

/* global ActiveXObject: false */
/* jshint browser: true */

(function() {
    'use strict';

    var
    /* jStorage version */
        JSTORAGE_VERSION = '0.4.12',

        /* detect a dollar object or create one if not found */
        $ = window.jQuery || window.$ || (window.$ = {}),

        /* check for a JSON handling support */
        JSON = {
            parse: window.JSON && (window.JSON.parse || window.JSON.decode) ||
                String.prototype.evalJSON && function(str) {
                    return String(str).evalJSON();
            } ||
                $.parseJSON ||
                $.evalJSON,
            stringify: Object.toJSON ||
                window.JSON && (window.JSON.stringify || window.JSON.encode) ||
                $.toJSON
        };

    // Break if no JSON support was found
    if (typeof JSON.parse !== 'function' || typeof JSON.stringify !== 'function') {
        throw new Error('No JSON support found, include //cdnjs.cloudflare.com/ajax/libs/json2/20110223/json2.js to page');
    }

    var
    /* This is the object, that holds the cached values */
        _storage = {
            __jstorage_meta: {
                CRC32: {}
            }
        },

        /* Actual browser storage (localStorage or globalStorage['domain']) */
        _storage_service = {
            jStorage: '{}'
        },

        /* DOM element for older IE versions, holds userData behavior */
        _storage_elm = null,

        /* How much space does the storage take */
        _storage_size = 0,

        /* which backend is currently used */
        _backend = false,

        /* onchange observers */
        _observers = {},

        /* timeout to wait after onchange event */
        _observer_timeout = false,

        /* last update time */
        _observer_update = 0,

        /* pubsub observers */
        _pubsub_observers = {},

        /* skip published items older than current timestamp */
        _pubsub_last = +new Date(),

        /* Next check for TTL */
        _ttl_timeout,

        /**
         * XML encoding and decoding as XML nodes can't be JSON'ized
         * XML nodes are encoded and decoded if the node is the value to be saved
         * but not if it's as a property of another object
         * Eg. -
         *   $.jStorage.set('key', xmlNode);        // IS OK
         *   $.jStorage.set('key', {xml: xmlNode}); // NOT OK
         */
        _XMLService = {

            /**
             * Validates a XML node to be XML
             * based on jQuery.isXML function
             */
            isXML: function(elm) {
                var documentElement = (elm ? elm.ownerDocument || elm : 0).documentElement;
                return documentElement ? documentElement.nodeName !== 'HTML' : false;
            },

            /**
             * Encodes a XML node to string
             * based on http://www.mercurytide.co.uk/news/article/issues-when-working-ajax/
             */
            encode: function(xmlNode) {
                if (!this.isXML(xmlNode)) {
                    return false;
                }
                try { // Mozilla, Webkit, Opera
                    return new XMLSerializer().serializeToString(xmlNode);
                } catch (E1) {
                    try { // IE
                        return xmlNode.xml;
                    } catch (E2) {}
                }
                return false;
            },

            /**
             * Decodes a XML node from string
             * loosely based on http://outwestmedia.com/jquery-plugins/xmldom/
             */
            decode: function(xmlString) {
                var dom_parser = ('DOMParser' in window && (new DOMParser()).parseFromString) ||
                    (window.ActiveXObject && function(_xmlString) {
                        var xml_doc = new ActiveXObject('Microsoft.XMLDOM');
                        xml_doc.async = 'false';
                        xml_doc.loadXML(_xmlString);
                        return xml_doc;
                    }),
                    resultXML;
                if (!dom_parser) {
                    return false;
                }
                resultXML = dom_parser.call('DOMParser' in window && (new DOMParser()) || window, xmlString, 'text/xml');
                return this.isXML(resultXML) ? resultXML : false;
            }
        };


    ////////////////////////// PRIVATE METHODS ////////////////////////

    /**
     * Initialization function. Detects if the browser supports DOM Storage
     * or userData behavior and behaves accordingly.
     */
    function _init() {
        /* Check if browser supports localStorage */
        var localStorageReallyWorks = false;
        if ('localStorage' in window) {
            try {
                window.localStorage.setItem('_tmptest', 'tmpval');
                localStorageReallyWorks = true;
                window.localStorage.removeItem('_tmptest');
            } catch (BogusQuotaExceededErrorOnIos5) {
                // Thanks be to iOS5 Private Browsing mode which throws
                // QUOTA_EXCEEDED_ERRROR DOM Exception 22.
            }
        }

        if (localStorageReallyWorks) {
            try {
                if (window.localStorage) {
                    _storage_service = window.localStorage;
                    _backend = 'localStorage';
                    _observer_update = _storage_service.jStorage_update;
                }
            } catch (E3) { /* Firefox fails when touching localStorage and cookies are disabled */ }
        }
        /* Check if browser supports globalStorage */
        else if ('globalStorage' in window) {
            try {
                if (window.globalStorage) {
                    if (window.location.hostname == 'localhost') {
                        _storage_service = window.globalStorage['localhost.localdomain'];
                    } else {
                        _storage_service = window.globalStorage[window.location.hostname];
                    }
                    _backend = 'globalStorage';
                    _observer_update = _storage_service.jStorage_update;
                }
            } catch (E4) { /* Firefox fails when touching localStorage and cookies are disabled */ }
        }
        /* Check if browser supports userData behavior */
        else {
            _storage_elm = document.createElement('link');
            if (_storage_elm.addBehavior) {

                /* Use a DOM element to act as userData storage */
                _storage_elm.style.behavior = 'url(#default#userData)';

                /* userData element needs to be inserted into the DOM! */
                document.getElementsByTagName('head')[0].appendChild(_storage_elm);

                try {
                    _storage_elm.load('jStorage');
                } catch (E) {
                    // try to reset cache
                    _storage_elm.setAttribute('jStorage', '{}');
                    _storage_elm.save('jStorage');
                    _storage_elm.load('jStorage');
                }

                var data = '{}';
                try {
                    data = _storage_elm.getAttribute('jStorage');
                } catch (E5) {}

                try {
                    _observer_update = _storage_elm.getAttribute('jStorage_update');
                } catch (E6) {}

                _storage_service.jStorage = data;
                _backend = 'userDataBehavior';
            } else {
                _storage_elm = null;
                return;
            }
        }

        // Load data from storage
        _load_storage();

        // remove dead keys
        _handleTTL();

        // start listening for changes
        _setupObserver();

        // initialize publish-subscribe service
        _handlePubSub();

        // handle cached navigation
        if ('addEventListener' in window) {
            window.addEventListener('pageshow', function(event) {
                if (event.persisted) {
                    _storageObserver();
                }
            }, false);
        }
    }

    /**
     * Reload data from storage when needed
     */
    function _reloadData() {
        var data = '{}';

        if (_backend == 'userDataBehavior') {
            _storage_elm.load('jStorage');

            try {
                data = _storage_elm.getAttribute('jStorage');
            } catch (E5) {}

            try {
                _observer_update = _storage_elm.getAttribute('jStorage_update');
            } catch (E6) {}

            _storage_service.jStorage = data;
        }

        _load_storage();

        // remove dead keys
        _handleTTL();

        _handlePubSub();
    }

    /**
     * Sets up a storage change observer
     */
    function _setupObserver() {
        if (_backend == 'localStorage' || _backend == 'globalStorage') {
            if ('addEventListener' in window) {
                window.addEventListener('storage', _storageObserver, false);
            } else {
                document.attachEvent('onstorage', _storageObserver);
            }
        } else if (_backend == 'userDataBehavior') {
            setInterval(_storageObserver, 1000);
        }
    }

    /**
     * Fired on any kind of data change, needs to check if anything has
     * really been changed
     */
    function _storageObserver() {
        var updateTime;
        // cumulate change notifications with timeout
        clearTimeout(_observer_timeout);
        _observer_timeout = setTimeout(function() {

            if (_backend == 'localStorage' || _backend == 'globalStorage') {
                updateTime = _storage_service.jStorage_update;
            } else if (_backend == 'userDataBehavior') {
                _storage_elm.load('jStorage');
                try {
                    updateTime = _storage_elm.getAttribute('jStorage_update');
                } catch (E5) {}
            }

            if (updateTime && updateTime != _observer_update) {
                _observer_update = updateTime;
                _checkUpdatedKeys();
            }

        }, 25);
    }

    /**
     * Reloads the data and checks if any keys are changed
     */
    function _checkUpdatedKeys() {
        var oldCrc32List = JSON.parse(JSON.stringify(_storage.__jstorage_meta.CRC32)),
            newCrc32List;

        _reloadData();
        newCrc32List = JSON.parse(JSON.stringify(_storage.__jstorage_meta.CRC32));

        var key,
            updated = [],
            removed = [];

        for (key in oldCrc32List) {
            if (oldCrc32List.hasOwnProperty(key)) {
                if (!newCrc32List[key]) {
                    removed.push(key);
                    continue;
                }
                if (oldCrc32List[key] != newCrc32List[key] && String(oldCrc32List[key]).substr(0, 2) == '2.') {
                    updated.push(key);
                }
            }
        }

        for (key in newCrc32List) {
            if (newCrc32List.hasOwnProperty(key)) {
                if (!oldCrc32List[key]) {
                    updated.push(key);
                }
            }
        }

        _fireObservers(updated, 'updated');
        _fireObservers(removed, 'deleted');
    }

    /**
     * Fires observers for updated keys
     *
     * @param {Array|String} keys Array of key names or a key
     * @param {String} action What happened with the value (updated, deleted, flushed)
     */
    function _fireObservers(keys, action) {
        keys = [].concat(keys || []);

        var i, j, len, jlen;

        if (action == 'flushed') {
            keys = [];
            for (var key in _observers) {
                if (_observers.hasOwnProperty(key)) {
                    keys.push(key);
                }
            }
            action = 'deleted';
        }
        for (i = 0, len = keys.length; i < len; i++) {
            if (_observers[keys[i]]) {
                for (j = 0, jlen = _observers[keys[i]].length; j < jlen; j++) {
                    _observers[keys[i]][j](keys[i], action);
                }
            }
            if (_observers['*']) {
                for (j = 0, jlen = _observers['*'].length; j < jlen; j++) {
                    _observers['*'][j](keys[i], action);
                }
            }
        }
    }

    /**
     * Publishes key change to listeners
     */
    function _publishChange() {
        var updateTime = (+new Date()).toString();

        if (_backend == 'localStorage' || _backend == 'globalStorage') {
            try {
                _storage_service.jStorage_update = updateTime;
            } catch (E8) {
                // safari private mode has been enabled after the jStorage initialization
                _backend = false;
            }
        } else if (_backend == 'userDataBehavior') {
            _storage_elm.setAttribute('jStorage_update', updateTime);
            _storage_elm.save('jStorage');
        }

        _storageObserver();
    }

    /**
     * Loads the data from the storage based on the supported mechanism
     */
    function _load_storage() {
        /* if jStorage string is retrieved, then decode it */
        if (_storage_service.jStorage) {
            try {
                _storage = JSON.parse(String(_storage_service.jStorage));
            } catch (E6) {
                _storage_service.jStorage = '{}';
            }
        } else {
            _storage_service.jStorage = '{}';
        }
        _storage_size = _storage_service.jStorage ? String(_storage_service.jStorage).length : 0;

        if (!_storage.__jstorage_meta) {
            _storage.__jstorage_meta = {};
        }
        if (!_storage.__jstorage_meta.CRC32) {
            _storage.__jstorage_meta.CRC32 = {};
        }
    }

    /**
     * This functions provides the 'save' mechanism to store the jStorage object
     */
    function _save() {
        _dropOldEvents(); // remove expired events
        try {
            _storage_service.jStorage = JSON.stringify(_storage);
            // If userData is used as the storage engine, additional
            if (_storage_elm) {
                _storage_elm.setAttribute('jStorage', _storage_service.jStorage);
                _storage_elm.save('jStorage');
            }
            _storage_size = _storage_service.jStorage ? String(_storage_service.jStorage).length : 0;
        } catch (E7) { /* probably cache is full, nothing is saved this way*/ }
    }

    /**
     * Function checks if a key is set and is string or numberic
     *
     * @param {String} key Key name
     */
    function _checkKey(key) {
        if (typeof key != 'string' && typeof key != 'number') {
            throw new TypeError('Key name must be string or numeric');
        }
        if (key == '__jstorage_meta') {
            throw new TypeError('Reserved key name');
        }
        return true;
    }

    /**
     * Removes expired keys
     */
    function _handleTTL() {
        var curtime, i, TTL, CRC32, nextExpire = Infinity,
            changed = false,
            deleted = [];

        clearTimeout(_ttl_timeout);

        if (!_storage.__jstorage_meta || typeof _storage.__jstorage_meta.TTL != 'object') {
            // nothing to do here
            return;
        }

        curtime = +new Date();
        TTL = _storage.__jstorage_meta.TTL;

        CRC32 = _storage.__jstorage_meta.CRC32;
        for (i in TTL) {
            if (TTL.hasOwnProperty(i)) {
                if (TTL[i] <= curtime) {
                    delete TTL[i];
                    delete CRC32[i];
                    delete _storage[i];
                    changed = true;
                    deleted.push(i);
                } else if (TTL[i] < nextExpire) {
                    nextExpire = TTL[i];
                }
            }
        }

        // set next check
        if (nextExpire != Infinity) {
            _ttl_timeout = setTimeout(_handleTTL, Math.min(nextExpire - curtime, 0x7FFFFFFF));
        }

        // save changes
        if (changed) {
            _save();
            _publishChange();
            _fireObservers(deleted, 'deleted');
        }
    }

    /**
     * Checks if there's any events on hold to be fired to listeners
     */
    function _handlePubSub() {
        var i, len;
        if (!_storage.__jstorage_meta.PubSub) {
            return;
        }
        var pubelm,
            _pubsubCurrent = _pubsub_last,
            needFired = [];

        for (i = len = _storage.__jstorage_meta.PubSub.length - 1; i >= 0; i--) {
            pubelm = _storage.__jstorage_meta.PubSub[i];
            if (pubelm[0] > _pubsub_last) {
                _pubsubCurrent = pubelm[0];
                needFired.unshift(pubelm);
            }
        }

        for (i = needFired.length - 1; i >= 0; i--) {
            _fireSubscribers(needFired[i][1], needFired[i][2]);
        }

        _pubsub_last = _pubsubCurrent;
    }

    /**
     * Fires all subscriber listeners for a pubsub channel
     *
     * @param {String} channel Channel name
     * @param {Mixed} payload Payload data to deliver
     */
    function _fireSubscribers(channel, payload) {
        if (_pubsub_observers[channel]) {
            for (var i = 0, len = _pubsub_observers[channel].length; i < len; i++) {
                // send immutable data that can't be modified by listeners
                try {
                    _pubsub_observers[channel][i](channel, JSON.parse(JSON.stringify(payload)));
                } catch (E) {}
            }
        }
    }

    /**
     * Remove old events from the publish stream (at least 2sec old)
     */
    function _dropOldEvents() {
        if (!_storage.__jstorage_meta.PubSub) {
            return;
        }

        var retire = +new Date() - 2000;

        for (var i = 0, len = _storage.__jstorage_meta.PubSub.length; i < len; i++) {
            if (_storage.__jstorage_meta.PubSub[i][0] <= retire) {
                // deleteCount is needed for IE6
                _storage.__jstorage_meta.PubSub.splice(i, _storage.__jstorage_meta.PubSub.length - i);
                break;
            }
        }

        if (!_storage.__jstorage_meta.PubSub.length) {
            delete _storage.__jstorage_meta.PubSub;
        }

    }

    /**
     * Publish payload to a channel
     *
     * @param {String} channel Channel name
     * @param {Mixed} payload Payload to send to the subscribers
     */
    function _publish(channel, payload) {
        if (!_storage.__jstorage_meta) {
            _storage.__jstorage_meta = {};
        }
        if (!_storage.__jstorage_meta.PubSub) {
            _storage.__jstorage_meta.PubSub = [];
        }

        _storage.__jstorage_meta.PubSub.unshift([+new Date(), channel, payload]);

        _save();
        _publishChange();
    }


    /**
     * JS Implementation of MurmurHash2
     *
     *  SOURCE: https://github.com/garycourt/murmurhash-js (MIT licensed)
     *
     * @author <a href='mailto:[email protected]'>Gary Court</a>
     * @see http://github.com/garycourt/murmurhash-js
     * @author <a href='mailto:[email protected]'>Austin Appleby</a>
     * @see http://sites.google.com/site/murmurhash/
     *
     * @param {string} str ASCII only
     * @param {number} seed Positive integer only
     * @return {number} 32-bit positive integer hash
     */

    function murmurhash2_32_gc(str, seed) {
        var
            l = str.length,
            h = seed ^ l,
            i = 0,
            k;

        while (l >= 4) {
            k =
                ((str.charCodeAt(i) & 0xff)) |
                ((str.charCodeAt(++i) & 0xff) << 8) |
                ((str.charCodeAt(++i) & 0xff) << 16) |
                ((str.charCodeAt(++i) & 0xff) << 24);

            k = (((k & 0xffff) * 0x5bd1e995) + ((((k >>> 16) * 0x5bd1e995) & 0xffff) << 16));
            k ^= k >>> 24;
            k = (((k & 0xffff) * 0x5bd1e995) + ((((k >>> 16) * 0x5bd1e995) & 0xffff) << 16));

            h = (((h & 0xffff) * 0x5bd1e995) + ((((h >>> 16) * 0x5bd1e995) & 0xffff) << 16)) ^ k;

            l -= 4;
            ++i;
        }

        switch (l) {
            case 3:
                h ^= (str.charCodeAt(i + 2) & 0xff) << 16;
                /* falls through */
            case 2:
                h ^= (str.charCodeAt(i + 1) & 0xff) << 8;
                /* falls through */
            case 1:
                h ^= (str.charCodeAt(i) & 0xff);
                h = (((h & 0xffff) * 0x5bd1e995) + ((((h >>> 16) * 0x5bd1e995) & 0xffff) << 16));
        }

        h ^= h >>> 13;
        h = (((h & 0xffff) * 0x5bd1e995) + ((((h >>> 16) * 0x5bd1e995) & 0xffff) << 16));
        h ^= h >>> 15;

        return h >>> 0;
    }

    ////////////////////////// PUBLIC INTERFACE /////////////////////////

    $.jStorage = {
        /* Version number */
        version: JSTORAGE_VERSION,

        /**
         * Sets a key's value.
         *
         * @param {String} key Key to set. If this value is not set or not
         *              a string an exception is raised.
         * @param {Mixed} value Value to set. This can be any value that is JSON
         *              compatible (Numbers, Strings, Objects etc.).
         * @param {Object} [options] - possible options to use
         * @param {Number} [options.TTL] - optional TTL value, in milliseconds
         * @return {Mixed} the used value
         */
        set: function(key, value, options) {
            _checkKey(key);

            options = options || {};

            // undefined values are deleted automatically
            if (typeof value == 'undefined') {
                this.deleteKey(key);
                return value;
            }

            if (_XMLService.isXML(value)) {
                value = {
                    _is_xml: true,
                    xml: _XMLService.encode(value)
                };
            } else if (typeof value == 'function') {
                return undefined; // functions can't be saved!
            } else if (value && typeof value == 'object') {
                // clone the object before saving to _storage tree
                value = JSON.parse(JSON.stringify(value));
            }

            _storage[key] = value;

            _storage.__jstorage_meta.CRC32[key] = '2.' + murmurhash2_32_gc(JSON.stringify(value), 0x9747b28c);

            this.setTTL(key, options.TTL || 0); // also handles saving and _publishChange

            _fireObservers(key, 'updated');
            return value;
        },

        /**
         * Looks up a key in cache
         *
         * @param {String} key - Key to look up.
         * @param {mixed} def - Default value to return, if key didn't exist.
         * @return {Mixed} the key value, default value or null
         */
        get: function(key, def) {
            _checkKey(key);
            if (key in _storage) {
                if (_storage[key] && typeof _storage[key] == 'object' && _storage[key]._is_xml) {
                    return _XMLService.decode(_storage[key].xml);
                } else {
                    return _storage[key];
                }
            }
            return typeof(def) == 'undefined' ? null : def;
        },

        /**
         * Deletes a key from cache.
         *
         * @param {String} key - Key to delete.
         * @return {Boolean} true if key existed or false if it didn't
         */
        deleteKey: function(key) {
            _checkKey(key);
            if (key in _storage) {
                delete _storage[key];
                // remove from TTL list
                if (typeof _storage.__jstorage_meta.TTL == 'object' &&
                    key in _storage.__jstorage_meta.TTL) {
                    delete _storage.__jstorage_meta.TTL[key];
                }

                delete _storage.__jstorage_meta.CRC32[key];

                _save();
                _publishChange();
                _fireObservers(key, 'deleted');
                return true;
            }
            return false;
        },

        /**
         * Sets a TTL for a key, or remove it if ttl value is 0 or below
         *
         * @param {String} key - key to set the TTL for
         * @param {Number} ttl - TTL timeout in milliseconds
         * @return {Boolean} true if key existed or false if it didn't
         */
        setTTL: function(key, ttl) {
            var curtime = +new Date();
            _checkKey(key);
            ttl = Number(ttl) || 0;
            if (key in _storage) {

                if (!_storage.__jstorage_meta.TTL) {
                    _storage.__jstorage_meta.TTL = {};
                }

                // Set TTL value for the key
                if (ttl > 0) {
                    _storage.__jstorage_meta.TTL[key] = curtime + ttl;
                } else {
                    delete _storage.__jstorage_meta.TTL[key];
                }

                _save();

                _handleTTL();

                _publishChange();
                return true;
            }
            return false;
        },

        /**
         * Gets remaining TTL (in milliseconds) for a key or 0 when no TTL has been set
         *
         * @param {String} key Key to check
         * @return {Number} Remaining TTL in milliseconds
         */
        getTTL: function(key) {
            var curtime = +new Date(),
                ttl;
            _checkKey(key);
            if (key in _storage && _storage.__jstorage_meta.TTL && _storage.__jstorage_meta.TTL[key]) {
                ttl = _storage.__jstorage_meta.TTL[key] - curtime;
                return ttl || 0;
            }
            return 0;
        },

        /**
         * Deletes everything in cache.
         *
         * @return {Boolean} Always true
         */
        flush: function() {
            _storage = {
                __jstorage_meta: {
                    CRC32: {}
                }
            };
            _save();
            _publishChange();
            _fireObservers(null, 'flushed');
            return true;
        },

        /**
         * Returns a read-only copy of _storage
         *
         * @return {Object} Read-only copy of _storage
         */
        storageObj: function() {
            function F() {}
            F.prototype = _storage;
            return new F();
        },

        /**
         * Returns an index of all used keys as an array
         * ['key1', 'key2',..'keyN']
         *
         * @return {Array} Used keys
         */
        index: function() {
            var index = [],
                i;
            for (i in _storage) {
                if (_storage.hasOwnProperty(i) && i != '__jstorage_meta') {
                    index.push(i);
                }
            }
            return index;
        },

        /**
         * How much space in bytes does the storage take?
         *
         * @return {Number} Storage size in chars (not the same as in bytes,
         *                  since some chars may take several bytes)
         */
        storageSize: function() {
            return _storage_size;
        },

        /**
         * Which backend is currently in use?
         *
         * @return {String} Backend name
         */
        currentBackend: function() {
            return _backend;
        },

        /**
         * Test if storage is available
         *
         * @return {Boolean} True if storage can be used
         */
        storageAvailable: function() {
            return !!_backend;
        },

        /**
         * Register change listeners
         *
         * @param {String} key Key name
         * @param {Function} callback Function to run when the key changes
         */
        listenKeyChange: function(key, callback) {
            _checkKey(key);
            if (!_observers[key]) {
                _observers[key] = [];
            }
            _observers[key].push(callback);
        },

        /**
         * Remove change listeners
         *
         * @param {String} key Key name to unregister listeners against
         * @param {Function} [callback] If set, unregister the callback, if not - unregister all
         */
        stopListening: function(key, callback) {
            _checkKey(key);

            if (!_observers[key]) {
                return;
            }

            if (!callback) {
                delete _observers[key];
                return;
            }

            for (var i = _observers[key].length - 1; i >= 0; i--) {
                if (_observers[key][i] == callback) {
                    _observers[key].splice(i, 1);
                }
            }
        },

        /**
         * Subscribe to a Publish/Subscribe event stream
         *
         * @param {String} channel Channel name
         * @param {Function} callback Function to run when the something is published to the channel
         */
        subscribe: function(channel, callback) {
            channel = (channel || '').toString();
            if (!channel) {
                throw new TypeError('Channel not defined');
            }
            if (!_pubsub_observers[channel]) {
                _pubsub_observers[channel] = [];
            }
            _pubsub_observers[channel].push(callback);
        },

        /**
         * Publish data to an event stream
         *
         * @param {String} channel Channel name
         * @param {Mixed} payload Payload to deliver
         */
        publish: function(channel, payload) {
            channel = (channel || '').toString();
            if (!channel) {
                throw new TypeError('Channel not defined');
            }

            _publish(channel, payload);
        },

        /**
         * Reloads the data from browser storage
         */
        reInit: function() {
            _reloadData();
        },

        /**
         * Removes reference from global objects and saves it as jStorage
         *
         * @param {Boolean} option if needed to save object as simple 'jStorage' in windows context
         */
        noConflict: function(saveInGlobal) {
            delete window.$.jStorage;

            if (saveInGlobal) {
                window.jStorage = this;
            }

            return this;
        }
    };

    // Initialize jStorage
    _init();

})();
"use strict";

/*\
|*|
|*|  Base64 / binary data / UTF-8 strings utilities
|*|
|*|  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Base64_encoding_and_decoding
|*|
\*/

/* Array of bytes to base64 string decoding */

function b64ToUint6 (nChr) {

  return nChr > 64 && nChr < 91 ?
      nChr - 65
    : nChr > 96 && nChr < 123 ?
      nChr - 71
    : nChr > 47 && nChr < 58 ?
      nChr + 4
    : nChr === 43 ?
      62
    : nChr === 47 ?
      63
    :
      0;

}

function base64DecToArr (sBase64, nBlocksSize) {

  var
    sB64Enc = sBase64.replace(/[^A-Za-z0-9\+\/]/g, ""), nInLen = sB64Enc.length,
    nOutLen = nBlocksSize ? Math.ceil((nInLen * 3 + 1 >> 2) / nBlocksSize) * nBlocksSize : nInLen * 3 + 1 >> 2, taBytes = new Uint8Array(nOutLen);

  for (var nMod3, nMod4, nUint24 = 0, nOutIdx = 0, nInIdx = 0; nInIdx < nInLen; nInIdx++) {
    nMod4 = nInIdx & 3;
    nUint24 |= b64ToUint6(sB64Enc.charCodeAt(nInIdx)) << 18 - 6 * nMod4;
    if (nMod4 === 3 || nInLen - nInIdx === 1) {
      for (nMod3 = 0; nMod3 < 3 && nOutIdx < nOutLen; nMod3++, nOutIdx++) {
        taBytes[nOutIdx] = nUint24 >>> (16 >>> nMod3 & 24) & 255;
      }
      nUint24 = 0;

    }
  }

  return taBytes;
}

/* Base64 string to array encoding */

function uint6ToB64 (nUint6) {

  return nUint6 < 26 ?
      nUint6 + 65
    : nUint6 < 52 ?
      nUint6 + 71
    : nUint6 < 62 ?
      nUint6 - 4
    : nUint6 === 62 ?
      43
    : nUint6 === 63 ?
      47
    :
      65;

}

function base64EncArr (aBytes) {

  var nMod3 = 2, sB64Enc = "";

  for (var nLen = aBytes.length, nUint24 = 0, nIdx = 0; nIdx < nLen; nIdx++) {
    nMod3 = nIdx % 3;
    if (nIdx > 0 && (nIdx * 4 / 3) % 76 === 0) { sB64Enc += "\r\n"; }
    nUint24 |= aBytes[nIdx] << (16 >>> nMod3 & 24);
    if (nMod3 === 2 || aBytes.length - nIdx === 1) {
      sB64Enc += String.fromCharCode(uint6ToB64(nUint24 >>> 18 & 63), uint6ToB64(nUint24 >>> 12 & 63), uint6ToB64(nUint24 >>> 6 & 63), uint6ToB64(nUint24 & 63));
      nUint24 = 0;
    }
  }

  return sB64Enc.substr(0, sB64Enc.length - 2 + nMod3) + (nMod3 === 2 ? '' : nMod3 === 1 ? '=' : '==');

}

/* UTF-8 array to DOMString and vice versa */

function UTF8ArrToStr (aBytes) {

  var sView = "";

  for (var nPart, nLen = aBytes.length, nIdx = 0; nIdx < nLen; nIdx++) {
    nPart = aBytes[nIdx];
    sView += String.fromCharCode(
      nPart > 251 && nPart < 254 && nIdx + 5 < nLen ? /* six bytes */
        /* (nPart - 252 << 32) is not possible in ECMAScript! So...: */
        (nPart - 252) * 1073741824 + (aBytes[++nIdx] - 128 << 24) + (aBytes[++nIdx] - 128 << 18) + (aBytes[++nIdx] - 128 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128
      : nPart > 247 && nPart < 252 && nIdx + 4 < nLen ? /* five bytes */
        (nPart - 248 << 24) + (aBytes[++nIdx] - 128 << 18) + (aBytes[++nIdx] - 128 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128
      : nPart > 239 && nPart < 248 && nIdx + 3 < nLen ? /* four bytes */
        (nPart - 240 << 18) + (aBytes[++nIdx] - 128 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128
      : nPart > 223 && nPart < 240 && nIdx + 2 < nLen ? /* three bytes */
        (nPart - 224 << 12) + (aBytes[++nIdx] - 128 << 6) + aBytes[++nIdx] - 128
      : nPart > 191 && nPart < 224 && nIdx + 1 < nLen ? /* two bytes */
        (nPart - 192 << 6) + aBytes[++nIdx] - 128
      : /* nPart < 127 ? */ /* one byte */
        nPart
    );
  }

  return sView;

}

function strToUTF8Arr (sDOMStr) {

  var aBytes, nChr, nStrLen = sDOMStr.length, nArrLen = 0;

  /* mapping... */

  for (var nMapIdx = 0; nMapIdx < nStrLen; nMapIdx++) {
    nChr = sDOMStr.charCodeAt(nMapIdx);
    nArrLen += nChr < 0x80 ? 1 : nChr < 0x800 ? 2 : nChr < 0x10000 ? 3 : nChr < 0x200000 ? 4 : nChr < 0x4000000 ? 5 : 6;
  }

  aBytes = new Uint8Array(nArrLen);

  /* transcription... */

  for (var nIdx = 0, nChrIdx = 0; nIdx < nArrLen; nChrIdx++) {
    nChr = sDOMStr.charCodeAt(nChrIdx);
    if (nChr < 128) {
      /* one byte */
      aBytes[nIdx++] = nChr;
    } else if (nChr < 0x800) {
      /* two bytes */
      aBytes[nIdx++] = 192 + (nChr >>> 6);
      aBytes[nIdx++] = 128 + (nChr & 63);
    } else if (nChr < 0x10000) {
      /* three bytes */
      aBytes[nIdx++] = 224 + (nChr >>> 12);
      aBytes[nIdx++] = 128 + (nChr >>> 6 & 63);
      aBytes[nIdx++] = 128 + (nChr & 63);
    } else if (nChr < 0x200000) {
      /* four bytes */
      aBytes[nIdx++] = 240 + (nChr >>> 18);
      aBytes[nIdx++] = 128 + (nChr >>> 12 & 63);
      aBytes[nIdx++] = 128 + (nChr >>> 6 & 63);
      aBytes[nIdx++] = 128 + (nChr & 63);
    } else if (nChr < 0x4000000) {
      /* five bytes */
      aBytes[nIdx++] = 248 + (nChr >>> 24);
      aBytes[nIdx++] = 128 + (nChr >>> 18 & 63);
      aBytes[nIdx++] = 128 + (nChr >>> 12 & 63);
      aBytes[nIdx++] = 128 + (nChr >>> 6 & 63);
      aBytes[nIdx++] = 128 + (nChr & 63);
    } else /* if (nChr <= 0x7fffffff) */ {
      /* six bytes */
      aBytes[nIdx++] = 252 + /* (nChr >>> 32) is not possible in ECMAScript! So...: */ (nChr / 1073741824);
      aBytes[nIdx++] = 128 + (nChr >>> 24 & 63);
      aBytes[nIdx++] = 128 + (nChr >>> 18 & 63);
      aBytes[nIdx++] = 128 + (nChr >>> 12 & 63);
      aBytes[nIdx++] = 128 + (nChr >>> 6 & 63);
      aBytes[nIdx++] = 128 + (nChr & 63);
    }
  }

  return aBytes;

}

NineSec Team - 2022