sunderls/fbevents.js

## fbevents.js
/*1482118385,,JIT Construction: v2746767,en_US*/
/**
 * Copyright Facebook Inc.
 *
 * Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 */
 try {
    (function(win, doc, location, history) {
        'use strict';
        var version = "2.5.1";
        // var gifPath = 'https://www.facebook.com/tr/';
        var gifPath = './';

        var fbJsName = '/fbevents.';
        var availablePlugins = {
            IDENTITY: 'plugins.identity.js' // https://connect.facebook.net/en_US/fbevents.plugins.identity.js
        };
        var i = {};
        var plugins = [];
        var scriptTags = null;

        // https://connect.facebook.net/en_US
        var fbJsBasePath = null;
        var regNumber = /^\d+$/;
        var n = {
            allowDuplicatePageViews: false
        };

        var Query = function(ua) {
            var result = {
                exports: ua
            };

            'use strict';

            function Query() {
                this.list = [];
            }

            Query.prototype = {

                append: function(key, data) {
                    this._append(encodeURIComponent(key), data, 'deep');
                },

                _append: function(key, data, mode) {
                    // if primitive data
                    if (Object(data) !== data) {
                        this._appendPrimitive(key, data);

                    // if deep copy object
                    } else if (mode === 'deep') {
                        this._appendObject(key, data);
                    } else
                        // shalow copy
                        this._appendPrimitive(key, strintify(data));
                },

                // for premitive , just use [key, value]
                _appendPrimitive: function(key, value) {
                    if (value != null)
                        this.list.push([key, value]);
                },

                // for object, flatten them, to `key[name1]`, `key[name2]`
                _appendObject: function(key, data) {
                    for (var attr in data)
                        if (data.hasOwnProperty(attr)) {
                            var seg = key + '[' + encodeURIComponent(attr) + ']';
                            this._append(seg, data[attr], 'shallow');
                        }
                },
                each: function(func) {
                    var data = this.list;
                    for (var i = 0, total = data.length; i < total; i++)
                        func(data[i][0], data[i][1]);
                },

                toQueryString: function () {
                    var result = [];
                    this.each(function(key, value) {
                        result.push(key + '=' + encodeURIComponent(value));
                    });
                    return result.join('&');
                }
            };

            function strintify(data) {
                if (typeof JSON === 'undefined' || JSON === null || !JSON.stringify) {
                    return Object.prototype.toString.call(data);
                } else
                    return JSON.stringify(data);
            }

            result.exports = Query;
            return result.exports;
        }({});

        var util = function(base) {
            var result = {
                exports: base
            };
            'use strict';
            var key_console = 'console';
            var key_error = 'error';
            var key_fb_pixel_error = 'Facebook Pixel Error';
            var key_fb_pixel_warn = 'Facebook Pixel Warning';
            var key_warn = 'warn';
            var toString = Object.prototype.toString;
            var isIE = !('addEventListener' in document);
            var noop = function lb() {};
            var console = win['console'] || {};
            var postMessage = win.postMessage || noop;

            // check isArray
            function isArray(data) {
                return Array.isArray ? Array.isArray(data) : toString.call(data) === '[object Array]';
            }

            function logError(msg) {
                postMessage({
                    action: 'FB_LOG',
                    logType: key_fb_pixel_error,
                    logMessage: msg
                }, '*');
                if ('error' in console)
                    console['error'](key_fb_pixel_error + ': ' + msg);
            }
            function logWarning(msg) {
                postMessage({
                    action: 'FB_LOG',
                    logType: key_fb_pixel_warn,
                    logMessage: msg
                }, '*');
                if (key_warn in console)
                    console[key_warn](key_fb_pixel_warn + ': ' + msg);
            }
            function listenOnce(target, event, callback) {
                event = isIE ? 'on' + event : event;
                var addListenerMethodName = isIE ? 'attachEvent' : 'addEventListener'
                  , removeListenerMethodName = isIE ? 'detachEvent' : 'removeEventListener'
                  , listener = function cb() {
                    target[removeListenerMethodName](event, cb, false);
                    callback();
                };
                target[addListenerMethod](event, listener, false);
            }

            function injectMethod(target, methodName, method) {
                var originMethod = target[methodName];
                target[methodName] = function() {
                    var result = originMethod.apply(this, arguments);
                    method.apply(this, arguments);
                    return result;
                }
                ;
            }

            base.isArray = isArray;
            base.logError = logError;
            base.logWarning = logWarning;
            base.listenOnce = listenOnce;
            base.injectMethod = injectMethod;
            return result.exports;
        }({});

        var Validator = function(ua) {
            var va = {
                exports: ua
            };
            'use strict';
            var wa = /^[+-]?\d+(\.\d+)?$/
              , xa = 'number'
              , ya = 'currency_code'
              , za = {
                AED: 1,
                ARS: 1,
                AUD: 1,
                BOB: 1,
                BRL: 1,
                CAD: 1,
                CHF: 1,
                CLP: 1,
                CNY: 1,
                COP: 1,
                CRC: 1,
                CZK: 1,
                DKK: 1,
                EUR: 1,
                GBP: 1,
                GTQ: 1,
                HKD: 1,
                HNL: 1,
                HUF: 1,
                IDR: 1,
                ILS: 1,
                INR: 1,
                ISK: 1,
                JPY: 1,
                KRW: 1,
                MOP: 1,
                MXN: 1,
                MYR: 1,
                NIO: 1,
                NOK: 1,
                NZD: 1,
                PEN: 1,
                PHP: 1,
                PLN: 1,
                PYG: 1,
                QAR: 1,
                RON: 1,
                RUB: 1,
                SAR: 1,
                SEK: 1,
                SGD: 1,
                THB: 1,
                TRY: 1,
                TWD: 1,
                USD: 1,
                UYU: 1,
                VEF: 1,
                VND: 1,
                ZAR: 1
            };

            var ab = {
                value: {
                    type: xa,
                    isRequired: true
                },
                currency: {
                    type: ya,
                    isRequired: true
                }
            };

            var bb = {
                PageView: {},
                ViewContent: {},
                Search: {},
                AddToCart: {},
                AddToWishlist: {},
                InitiateCheckout: {},
                AddPaymentInfo: {},
                Purchase: {
                    validationSchema: ab
                },
                Lead: {},
                CompleteRegistration: {},
                CustomEvent: {
                    validationSchema: {
                        event: {
                            isRequired: true
                        }
                    }
                }
            }

            var cb = {
                agent: {}
            };

            var db = Object.prototype.hasOwnProperty;

            function _Validator(hb, ib, jb) {
                this.metadata = jb;
                this.eventName = hb;
                this.params = ib || {};
                this.error = null;
                this.warnings = [];
            }

            _Validator.prototype = {
                validateMetadata: function() {
                    var ib = this.metadata.toLowerCase()
                      , jb = cb[ib];
                    if (!jb)
                        return this._error('Unsupported metadata argument: ' + ib);
                    return this;
                },
                validateEvent: function() {
                    var ib = this.eventName
                      , jb = bb[ib];
                    if (!jb) {
                        this.warnings.push('You are sending a non-standard event \'' + ib + '\'. The ' + 'preferred way to send events is using trackCustom. See ' + 'https://www.facebookmarketingdevelopers.com/pixels/up#sec-custom ' + 'for more information');
                        return this;
                    }
                    var kb = jb.validationSchema;
                    for (var lb in kb)
                        if (db.call(kb, lb)) {
                            var mb = kb[lb];
                            if (mb.isRequired === true && !db.call(this.params, lb))
                                return this._error('Required parameter "' + lb + '" is missing for event "' + ib + '"');
                            if (mb.type)
                                if (!this._validateParam(lb, mb.type))
                                    return this._error('Parameter "' + lb + '" is invalid for event "' + ib + '"');
                        }
                    return this;
                },
                _validateParam: function(ib, jb) {
                    var kb = this.params[ib];
                    switch (jb) {
                    case xa:
                        var lb = wa.test(kb);
                        if (lb && Number(kb) < 0)
                            this.warnings.push('Parameter "' + ib + '" is negative for event "' + this.eventName + '"');
                        return lb;
                    case ya:
                        return za[kb.toUpperCase()] === 1;
                    }
                    return true;
                },
                _error: function(ib) {
                    this.error = ib;
                    return this;
                }
            };
            function validateMetadata(meta) {
                return new _Validator(null,null,meta).validateMetadata();
            }
            function validateEvent(event, data) {
                return new _Validator(event,data).validateEvent();
            }
            ua.validateMetadata = validateMetadata;
            ua.validateEvent = validateEvent;
            return va.exports;
        }({});


        var r = null;

        // check instal by checking window.fgq which is set by code snippet
        var fbq = window.fbq;
        if (!fbq)
            return util.logError('Pixel code is not installed correctly on this page');

        var slice = Array.prototype.slice;
        var hasOwnProperty = Object.prototype.hasOwnProperty;
        var currentHref = location.href;
        var isLegacyInited = false;
        var isInited = false;
        var isIframe = win.top !== win;
        var pixels = [];
        var initedPixels = {};
        var referrer = document.referrer;
        var ca = {};

        var isEmpty = function ua(data) {
            if (Object.keys)
                return Object.keys(data).length === 0;
            for (var wa in data)
                if (data.hasOwnProperty(wa))
                    return false;
            return true;
        };

        // Clone, shallow
        function Clone(obj) {
            for (var attr in obj)
                if (hasOwnProperty.call(obj, attr))
                    this[atrr] = obj[atrr];
        }

        // run a method call
        function callMethod(event) {
            if (!plugins.length) {
                var args = slice.call(arguments);
                // fallback for array here?
                var isArgsInArray = args.length === 1 && util.isArray(args[0]);
                if (isArgsInArray)
                    args = args[0];

                // if method starts with 'report'
                // do some transformation, seems like legacy code
                if (event.slice(0, 6) === 'report') {
                    var xa = event.slice(6);
                    if (xa === 'CustomEvent') {
                        xa = (args[1] || {}).event || xa;
                        args = ['trackCustom', xa].concat(args.slice(1));
                    } else
                        args = ['track', xa].concat(args.slice(1));
                }

                event = args.shift();

                switch (event) {
                // this is legacy
                case 'addPixelId':
                    w = true;
                    return init.apply(this, args);
                case 'init':
                    isInited = true;
                    return init.apply(this, args);
                case 'set':
                    return set.apply(this, args);
                case 'track':
                    if (regNumber.test(args[0]))
                        return legacyConversionEvent.apply(this, args);
                    if (isArgsInArray)
                        return track.apply(this, args);
                    return ia.apply(this, args);
                case 'trackCustom':
                    return track.apply(this, args);
                case 'send':
                    return send.apply(this, args);
                default:
                    util.logError('Invalid or unknown method name "' + ua + '"');
                }
            } else
                fbq.queue.push(arguments);
        }

        fbq.callMethod = callMethod;

        // fbq('init');
        // related to https://developers.facebook.com/docs/facebook-pixel/pixel-with-ads/conversion-tracking#advanced_match
        function init(pixelId, va, wa) {
            if (hasOwnProperty.call(initedPixels, pixelId)) {
                if (va && isEmpty(initedPixels[pixelId].userData)) {
                    initedPixels[pixelId].userData = va;
                    loadPlugin('IDENTITY');
                } else
                    util.logError('Duplicate Pixel ID: ' + pixelId);
                return;
            }
            var xa = {
                agent: !!wa && wa.agent,
                id: pixelId,
                userData: va || {}
            };
            pixels.push(xa);
            initedPixels[pixelId] = xa;
            if (va != null)
                loadPlugin('IDENTITY');
        }

        function set(meta, newMeta, wa) {
            var xa = Validator.validateMetadata(meta);
            if (xa.error)
                util.logError(xa.error);
            if (xa.warnings)
                for (var ya = 0; ya < xa.warnings.length; ya++)
                    util.logWarning(xa.warnings[ya]);
            if (hasOwnProperty.call(aa, wa)) {
                for (var i = 0, total = pixels.length; i < total; i++)
                    if (pixels[i].id === wa) {
                        pixels[i][meta] = newMeta;
                        break;
                    }
            } else
                util.logWarning('Trying to set argument ' + va + ' for uninitialized pixel ID ' + wa);
        }

        // ia is legacy ?
        function ia(event, data) {
            data = data || {};
            var wa = Validator.validateEvent(event, data);
            if (wa.error)
                util.logError(wa.error);
            if (wa.warnings)
                for (var xa = 0; xa < wa.warnings.length; xa++)
                    util.logWarning(wa.warnings[xa]);
            if (event === 'CustomEvent')
                event = data.event;
            track.call(this, event, data);
        }

        // track function
        function track(event, data) {
            var wa = this instanceof Clone ? this : n;
            var isPageview = event === 'PageView';
            for (var i = 0, total = pixels.length; i < total; i++) {
                var methodCall = pixels[i];

                if (isPageview && wa.allowDuplicatePageViews === false && ca[methodCall.id] === true)
                    continue;

                submit(methodCall, event, data);

                if (isPageview)
                    ca[methodCall.id] = true;
            }
        }

        // send number this is legacy code
        function legacyConversionEvent(event, data) {
            submit(null, event, data);
        }

        // collect enough data for event
        function collectData(ua, event, data) {
            ua = ua || {};
            var query = new Query();
            query.append('id', ua.id);

            // 'Pageview', method name ?
            query.append('ev', event);

            query.append('dl', currentHref);

            query.append('rl', referrer);

            // false
            query.append('if', isIframe);

            // timestamp
            query.append('ts', new Date().valueOf());

            query.append('cd', data);
            query.append('ud', ua.userData);

            // version
            query.append('v', version || fbq.version);

            //
            query.append('a', ua.agent || fbq.agent);
            return query;
        }

        function send(event, data) {
            for (var i = 0, total = pixels.length; i < total; i++)
                submit(pixels[i], event, data);
        }

        // send data
        function submit(ua, event, data) {
            var xa = collectData(ua, event, data);
            var ya = xa.toQueryString();

            // if length is < 2048, then use get
            // else use post with a iframe
            if (2048 > (gifPath + '?' + ya).length) {
                submitByGet(gifPath, ya);
            } else
                submitByPost(gifPath, xa);
        }

        // use gif beacon to collect data
        function submitByGet(path, queryString) {
            var gif = new Image();
            gif.src = path + '?' + queryString;
        }

        // create a form & hidden iframe to post
        function submitByPost(path, query) {
            var iframeName = 'fb' + Math.random().toString().replace('.', '')
              , $form = b.createElement('form');
            $form.method = 'post';
            $form.action = path;
            $form.target = iframeName;
            $form.acceptCharset = 'utf-8';
            $form.style.display = 'none';
            var isIE = !!(a.attachEvent && !a.addEventListener)
              , tag = isIE ? '<iframe name="' + iframeName + '">' : 'iframe'
              , $iframe = doc.createElement(tag);
            $iframe.src = 'javascript:false';
            $iframe.id = iframeName;
            $iframe.name = iframeName;
            $form.appendChild($iframe);
            util.listenOnce($iframe, 'load', function() {
                query.each(function(key, value) {
                    var $input = b.createElement('input');
                    $input.name = key;
                    $input.value = value;
                    $form.appendChild($input);
                });
                util.listenOnce($iframe, 'load', function() {
                    $form.parentNode.removeChild($form);
                });
                $form.submit();
            });
            doc.body.appendChild($form);
        }

        // flush method call in fbq with order, which are pushed before js is loaded
        function flushQueue() {
            while (fbq.queue.length && !plugins.length) {
                var event = fbq.queue.shift();
                callMethod.apply(fbq, event);
            }
        }

        //
        function updateFbJsBasePath() {
            scriptTags = doc.getElementsByTagName('script');
            for (var i = 0; i < scriptTags.length && !fbJsBasePath; i++) {
                var segs = scriptTags[i].src.split(fbJsName);
                if (segs.length > 1)
                    fbJsBasePath = segs[0];
            }
        }

        // load a plugin by name
        function loadPlugin(pluginName) {
            var pluginFileName = availablePlugins[pluginName];
            if (pluginFileName)
                if (i[pluginName]) {
                    i[pluginName]({
                        pixels: pixels
                    });
                } else if (plugins.indexOf(pluginName) === -1) {
                    if (fbJsBasePath == null)
                        updateFbJsBasePath();
                    plugins.push(pluginName);
                    var $script = doc.createElement('script');
                    $script.src = fbJsBasePath + fbJsName + pluginFileName;
                    $script.async = true;
                    var firstScriptTag = scriptTags[0];
                    if (firstScriptTag)
                        firstScriptTag.parentNode.insertBefore($script, firstScriptTag);
                }
        }

        fbq.loadPlugin = loadPlugin;

        function registerPlugin(ua, va) {
            if (ua && va) {
                i[ua] = va;
                va({
                    pixels: pixels
                });
                var wa = plugins.indexOf(ua);
                if (wa > -1)
                    plugins.splice(wa, 1);
                if (!plugins.length)
                    flushQueue();
            }
        }
        fbq.registerPlugin = registerPlugin;

        // legacy
        if (fbq.pixelId) {
            isLegacyInited = true;
            init(s.pixelId);
        }
        flushQueue();

        // when multiple pixels of different versions are detected.
        if (isLegacyInited && isInited || win.fbq !== win._fbq)
            util.logWarning('Multiple pixels with conflicting versions were detected on this page');

        if (pixels.length > 1)
            util.logWarning('Multiple different pixels were detected on this page');

        (function() {
            if (fbq.disablePushState === true)
                return;
            // why ?
            if (!history.pushState || !history.replaceState)
                return;

            // seems do something of trakcCustom, pageview?
            var va = function wa() {
                oldHref = currentHref;
                currentHref = location.href;
                if (currentHref === oldHref)
                    return;

                var xa = new Clone({
                    allowDuplicatePageViews: true
                });

                callMethod.call(xa, 'trackCustom', 'PageView');
            };
            // when pushState
            util.injectMethod(history, 'pushState', va);

            //  when replaceState
            util.injectMethod(history, 'replaceState', va);

            // when popup state
            win.addEventListener('popstate', va, false);
        })();
    })(window, document, location, history);
} catch (e) {
    // send error back
     new Image().src = "https:\/\/www.facebook.com\/" + 'common/scribe_endpoint.php?c=jssdk_error&m=' + encodeURIComponent('{"error":"LOAD", "extra": {"name":"' + e.name + '","line":"' + (e.lineNumber || e.line) + '","script":"' + (e.fileName || e.sourceURL || e.script) + '","stack":"' + (e.stackTrace || e.stack) + '","revision":"2746767","namespace":"FB","message":"' + e.message + '"}}');
}

## plugins.identity.js
/*1482144920,,JIT Construction: v2746767,en_US*/
/**
 * Copyright Facebook Inc.
 *
 * Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 */
try {
    /**
 * @provides fb.fbevents.plugins.identity
 * @noframework
 * @preserve-header
 *
 * Copyright (c) 2003, Christoph Bichlmeier
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * str2rstr_utf8 is taken from:
 * "A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321."
 * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 *
 */
    (function(a) {
        var b = function ka(la) {
            var ma = '', na, oa;
            for (var pa = 0; pa < la.length; pa++) {
                na = la.charCodeAt(pa);
                oa = pa + 1 < la.length ? la.charCodeAt(pa + 1) : 0;
                if (55296 <= na && na <= 56319 && 56320 <= oa && oa <= 57343) {
                    na = 65536 + ((na & 1023) << 10) + (oa & 1023);
                    pa++;
                }
                if (na <= 127) {
                    ma += String.fromCharCode(na);
                } else if (na <= 2047) {
                    ma += String.fromCharCode(192 | na >>> 6 & 31, 128 | na & 63);
                } else if (na <= 65535) {
                    ma += String.fromCharCode(224 | na >>> 12 & 15, 128 | na >>> 6 & 63, 128 | na & 63);
                } else if (na <= 2097151)
                    ma += String.fromCharCode(240 | na >>> 18 & 7, 128 | na >>> 12 & 63, 128 | na >>> 6 & 63, 128 | na & 63);
            }
            return ma;
        };
        function c(ka, la) {
            return la >>> ka | la << 32 - ka;
        }
        function d(ka, la, ma) {
            return ka & la ^ ~ka & ma;
        }
        function e(ka, la, ma) {
            return ka & la ^ ka & ma ^ la & ma;
        }
        function f(ka) {
            return c(2, ka) ^ c(13, ka) ^ c(22, ka);
        }
        function g(ka) {
            return c(6, ka) ^ c(11, ka) ^ c(25, ka);
        }
        function h(ka) {
            return c(7, ka) ^ c(18, ka) ^ ka >>> 3;
        }
        function i(ka) {
            return c(17, ka) ^ c(19, ka) ^ ka >>> 10;
        }
        function j(ka, la) {
            return ka[la & 15] += i(ka[la + 14 & 15]) + ka[la + 9 & 15] + h(ka[la + 1 & 15]);
        }
        var k = new Array(1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298)
          , l = new Array(8)
          , m = new Array(2)
          , n = new Array(64)
          , o = new Array(16)
          , p = "0123456789abcdef";
        function q(ka, la) {
            var ma = (ka & 65535) + (la & 65535)
              , na = (ka >> 16) + (la >> 16) + (ma >> 16);
            return na << 16 | ma & 65535;
        }
        function r() {
            m[0] = m[1] = 0;
            l[0] = 1779033703;
            l[1] = 3144134277;
            l[2] = 1013904242;
            l[3] = 2773480762;
            l[4] = 1359893119;
            l[5] = 2600822924;
            l[6] = 528734635;
            l[7] = 1541459225;
        }
        function s() {
            var ka, la, ma, na, oa, pa, qa, ra, sa, ta;
            ka = l[0];
            la = l[1];
            ma = l[2];
            na = l[3];
            oa = l[4];
            pa = l[5];
            qa = l[6];
            ra = l[7];
            for (var ua = 0; ua < 16; ua++)
                o[ua] = n[(ua << 2) + 3] | n[(ua << 2) + 2] << 8 | n[(ua << 2) + 1] << 16 | n[ua << 2] << 24;
            for (var va = 0; va < 64; va++) {
                sa = ra + g(oa) + d(oa, pa, qa) + k[va];
                if (va < 16) {
                    sa += o[va];
                } else
                    sa += j(o, va);
                ta = f(ka) + e(ka, la, ma);
                ra = qa;
                qa = pa;
                pa = oa;
                oa = q(na, sa);
                na = ma;
                ma = la;
                la = ka;
                ka = q(sa, ta);
            }
            l[0] += ka;
            l[1] += la;
            l[2] += ma;
            l[3] += na;
            l[4] += oa;
            l[5] += pa;
            l[6] += qa;
            l[7] += ra;
        }
        function t(ka, la) {
            var ma, na, oa = 0;
            na = m[0] >> 3 & 63;
            var pa = la & 63;
            if ((m[0] += la << 3) < la << 3)
                m[1]++;
            m[1] += la >> 29;
            for (ma = 0; ma + 63 < la; ma += 64) {
                for (var qa = na; qa < 64; qa++)
                    n[qa] = ka.charCodeAt(oa++);
                s();
                na = 0;
            }
            for (var qa = 0; qa < pa; qa++)
                n[qa] = ka.charCodeAt(oa++);
        }
        function u() {
            var ka = m[0] >> 3 & 63;
            n[ka++] = 128;
            if (ka <= 56) {
                for (var la = ka; la < 56; la++)
                    n[la] = 0;
            } else {
                for (var la = ka; la < 64; la++)
                    n[la] = 0;
                s();
                for (var la = 0; la < 56; la++)
                    n[la] = 0;
            }
            n[56] = m[1] >>> 24 & 255;
            n[57] = m[1] >>> 16 & 255;
            n[58] = m[1] >>> 8 & 255;
            n[59] = m[1] & 255;
            n[60] = m[0] >>> 24 & 255;
            n[61] = m[0] >>> 16 & 255;
            n[62] = m[0] >>> 8 & 255;
            n[63] = m[0] & 255;
            s();
        }
        function v() {
            var ka = 0
              , la = new Array(32);
            for (var ma = 0; ma < 8; ma++) {
                la[ka++] = l[ma] >>> 24 & 255;
                la[ka++] = l[ma] >>> 16 & 255;
                la[ka++] = l[ma] >>> 8 & 255;
                la[ka++] = l[ma] & 255;
            }
            return la;
        }
        function w() {
            var ka = new String();
            for (var la = 0; la < 8; la++)
                for (var ma = 28; ma >= 0; ma -= 4)
                    ka += p.charAt(l[la] >>> ma & 15);
            return ka;
        }
        function x(ka) {
            var la = 0;
            for (var ma = 0; ma < 8; ma++)
                for (var na = 28; na >= 0; na -= 4)
                    ka[la++] = p.charCodeAt(l[ma] >>> na & 15);
        }
        function y(ka, la) {
            r();
            t(ka, ka.length);
            u();
            if (la) {
                x(la);
            } else
                return w();
        }
        function z(ka, la, ma) {
            if (ka === null || ka === undefined)
                return null;
            la = typeof la == 'undefined' ? true : la;
            if (la)
                ka = b(ka);
            return y(ka, ma);
        }
        var aa = /^[a-f0-9]{64}$/i
          , ba = /^[\w!#\$%&'\*\+\/\=\?\^`\{\|\}~\-]+(:?\.[\w!#\$%&'\*\+\/\=\?\^`\{\|\}~\-]+)*@(?:[a-z0-9](?:[a-z0-9\-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9\-]*[a-z0-9])?$/i
          , ca = /^\s+|\s+$/g
          , da = Object.prototype.hasOwnProperty;
        function ea(ka) {
            return ba.test(ka);
        }
        function fa(ka) {
            if (typeof ka === 'string')
                return ka.replace(ca, '');
        }
        function ga(ka) {
            if (typeof ka === 'string')
                return ka.toLowerCase();
        }
        function ha(ka, la) {
            var ma = null;
            switch (ka) {
            case 'em':
            case 'email':
                var na = fa(ga(la));
                ma = ea(na) ? na : null;
                break;
            default:
                ma = la;
            }
            return ma;
        }
        function ia(ka) {
            var la = ka.pixels || [];
            for (var ma = 0; ma < la.length; ma++) {
                var na = la[ma].userData;
                if (na) {
                    var oa = {};
                    for (var pa in na)
                        if (da.call(na, pa)) {
                            var qa = na[pa];
                            if (qa != null && !aa.test(qa)) {
                                qa = ha(pa, qa);
                                if (qa !== null)
                                    qa = z(qa);
                            }
                            oa[pa] = qa;
                        }
                    la[ma].userData = oa;
                }
            }
        }
        var ja = a.fbq;
        if (!(!ja))
            ja.registerPlugin('IDENTITY', ia);
    })(window);
} catch (e) {
    console.log(e);
    new Image().src="https:\/\/www.facebook.com\/" + 'common/scribe_endpoint.php?c=jssdk_error&m='+encodeURIComponent('{"error":"LOAD", "extra": {"name":"'+e.name+'","line":"'+(e.lineNumber||e.line)+'","script":"'+(e.fileName||e.sourceURL||e.script)+'","stack":"'+(e.stackTrace||e.stack)+'","revision":"2746767","namespace":"FB","message":"'+e.message+'"}}');
}

## usage.js
!function(f,b,e,v,n,t,s){
  if(f.fbq)
    return;

  // window.fbq is a function
  // if fbq has callMethod, it will be run
  // else push arguments to fbq.queue

  n=f.fbq=function(){
    n.callMethod? n.callMethod.apply(n,arguments):n.queue.push(arguments)
  };

  // _fbq is a flag to determine inited or not
  if(!f._fbq) f._fbq=n;

  // fbq.push is itself
  n.push=n;
  n.loaded=!0;
  n.version='2.0';

  // fbq.queue
  n.queue=[];
  t=b.createElement(e);
  t.async=!0;
  t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
document,'script','https://connect.facebook.net/en_US/fbevents.js');

fbq('init', '1111111111111111', {
    em: 'someone@example.com'
});
fbq('track', 'PageView');
fbq('track', 'Purchase', {currency: 'EUR', value: 15.20});
fbq('trackCustom', 'MyCustomEvent', {custom_param: 'custom_value'});
	/1482118385,,JIT Construction: v2746767,en_US/
	/**
	* Copyright Facebook Inc.
	*
	* Licensed under the Apache License, Version 2.0
	* http://www.apache.org/licenses/LICENSE-2.0
	*/
	try {
	(function(win, doc, location, history) {
	'use strict';
	var version = "2.5.1";
	// var gifPath = 'https://www.facebook.com/tr/';
	var gifPath = './';

	var fbJsName = '/fbevents.';
	var availablePlugins = {
	IDENTITY: 'plugins.identity.js' // https://connect.facebook.net/en_US/fbevents.plugins.identity.js
	};
	var i = {};
	var plugins = [];
	var scriptTags = null;

	// https://connect.facebook.net/en_US
	var fbJsBasePath = null;
	var regNumber = /^\d+$/;
	var n = {
	allowDuplicatePageViews: false
	};

	var Query = function(ua) {
	var result = {
	exports: ua
	};

	'use strict';

	function Query() {
	this.list = [];
	}

	Query.prototype = {

	append: function(key, data) {
	this._append(encodeURIComponent(key), data, 'deep');
	},

	_append: function(key, data, mode) {
	// if primitive data
	if (Object(data) !== data) {
	this._appendPrimitive(key, data);

	// if deep copy object
	} else if (mode === 'deep') {
	this._appendObject(key, data);
	} else
	// shalow copy
	this._appendPrimitive(key, strintify(data));
	},

	// for premitive , just use [key, value]
	_appendPrimitive: function(key, value) {
	if (value != null)
	this.list.push([key, value]);
	},

	// for object, flatten them, to `key[name1]`, `key[name2]`
	_appendObject: function(key, data) {
	for (var attr in data)
	if (data.hasOwnProperty(attr)) {
	var seg = key + '[' + encodeURIComponent(attr) + ']';
	this._append(seg, data[attr], 'shallow');
	}
	},
	each: function(func) {
	var data = this.list;
	for (var i = 0, total = data.length; i < total; i++)
	func(data[i][0], data[i][1]);
	},

	toQueryString: function () {
	var result = [];
	this.each(function(key, value) {
	result.push(key + '=' + encodeURIComponent(value));
	});
	return result.join('&');
	}
	};

	function strintify(data) {
	if (typeof JSON === 'undefined' \|\| JSON === null \|\| !JSON.stringify) {
	return Object.prototype.toString.call(data);
	} else
	return JSON.stringify(data);
	}

	result.exports = Query;
	return result.exports;
	}({});

	var util = function(base) {
	var result = {
	exports: base
	};
	'use strict';
	var key_console = 'console';
	var key_error = 'error';
	var key_fb_pixel_error = 'Facebook Pixel Error';
	var key_fb_pixel_warn = 'Facebook Pixel Warning';
	var key_warn = 'warn';
	var toString = Object.prototype.toString;
	var isIE = !('addEventListener' in document);
	var noop = function lb() {};
	var console = win['console'] \|\| {};
	var postMessage = win.postMessage \|\| noop;

	// check isArray
	function isArray(data) {
	return Array.isArray ? Array.isArray(data) : toString.call(data) === '[object Array]';
	}

	function logError(msg) {
	postMessage({
	action: 'FB_LOG',
	logType: key_fb_pixel_error,
	logMessage: msg
	}, '*');
	if ('error' in console)
	console['error'](key_fb_pixel_error + ': ' + msg);
	}
	function logWarning(msg) {
	postMessage({
	action: 'FB_LOG',
	logType: key_fb_pixel_warn,
	logMessage: msg
	}, '*');
	if (key_warn in console)
	console[key_warn](key_fb_pixel_warn + ': ' + msg);
	}
	function listenOnce(target, event, callback) {
	event = isIE ? 'on' + event : event;
	var addListenerMethodName = isIE ? 'attachEvent' : 'addEventListener'
	, removeListenerMethodName = isIE ? 'detachEvent' : 'removeEventListener'
	, listener = function cb() {
	target[removeListenerMethodName](event, cb, false);
	callback();
	};
	target[addListenerMethod](event, listener, false);
	}

	function injectMethod(target, methodName, method) {
	var originMethod = target[methodName];
	target[methodName] = function() {
	var result = originMethod.apply(this, arguments);
	method.apply(this, arguments);
	return result;
	}
	;
	}

	base.isArray = isArray;
	base.logError = logError;
	base.logWarning = logWarning;
	base.listenOnce = listenOnce;
	base.injectMethod = injectMethod;
	return result.exports;
	}({});

	var Validator = function(ua) {
	var va = {
	exports: ua
	};
	'use strict';
	var wa = /^[+-]?\d+(\.\d+)?$/
	, xa = 'number'
	, ya = 'currency_code'
	, za = {
	AED: 1,
	ARS: 1,
	AUD: 1,
	BOB: 1,
	BRL: 1,
	CAD: 1,
	CHF: 1,
	CLP: 1,
	CNY: 1,
	COP: 1,
	CRC: 1,
	CZK: 1,
	DKK: 1,
	EUR: 1,
	GBP: 1,
	GTQ: 1,
	HKD: 1,
	HNL: 1,
	HUF: 1,
	IDR: 1,
	ILS: 1,
	INR: 1,
	ISK: 1,
	JPY: 1,
	KRW: 1,
	MOP: 1,
	MXN: 1,
	MYR: 1,
	NIO: 1,
	NOK: 1,
	NZD: 1,
	PEN: 1,
	PHP: 1,
	PLN: 1,
	PYG: 1,
	QAR: 1,
	RON: 1,
	RUB: 1,
	SAR: 1,
	SEK: 1,
	SGD: 1,
	THB: 1,
	TRY: 1,
	TWD: 1,
	USD: 1,
	UYU: 1,
	VEF: 1,
	VND: 1,
	ZAR: 1
	};

	var ab = {
	value: {
	type: xa,
	isRequired: true
	},
	currency: {
	type: ya,
	isRequired: true
	}
	};

	var bb = {
	PageView: {},
	ViewContent: {},
	Search: {},
	AddToCart: {},
	AddToWishlist: {},
	InitiateCheckout: {},
	AddPaymentInfo: {},
	Purchase: {
	validationSchema: ab
	},
	Lead: {},
	CompleteRegistration: {},
	CustomEvent: {
	validationSchema: {
	event: {
	isRequired: true
	}
	}
	}
	}

	var cb = {
	agent: {}
	};

	var db = Object.prototype.hasOwnProperty;

	function _Validator(hb, ib, jb) {
	this.metadata = jb;
	this.eventName = hb;
	this.params = ib \|\| {};
	this.error = null;
	this.warnings = [];
	}

	_Validator.prototype = {
	validateMetadata: function() {
	var ib = this.metadata.toLowerCase()
	, jb = cb[ib];
	if (!jb)
	return this._error('Unsupported metadata argument: ' + ib);
	return this;
	},
	validateEvent: function() {
	var ib = this.eventName
	, jb = bb[ib];
	if (!jb) {
	this.warnings.push('You are sending a non-standard event \'' + ib + '\'. The ' + 'preferred way to send events is using trackCustom. See ' + 'https://www.facebookmarketingdevelopers.com/pixels/up#sec-custom ' + 'for more information');
	return this;
	}
	var kb = jb.validationSchema;
	for (var lb in kb)
	if (db.call(kb, lb)) {
	var mb = kb[lb];
	if (mb.isRequired === true && !db.call(this.params, lb))
	return this._error('Required parameter "' + lb + '" is missing for event "' + ib + '"');
	if (mb.type)
	if (!this._validateParam(lb, mb.type))
	return this._error('Parameter "' + lb + '" is invalid for event "' + ib + '"');
	}
	return this;
	},
	_validateParam: function(ib, jb) {
	var kb = this.params[ib];
	switch (jb) {
	case xa:
	var lb = wa.test(kb);
	if (lb && Number(kb) < 0)
	this.warnings.push('Parameter "' + ib + '" is negative for event "' + this.eventName + '"');
	return lb;
	case ya:
	return za[kb.toUpperCase()] === 1;
	}
	return true;
	},
	_error: function(ib) {
	this.error = ib;
	return this;
	}
	};
	function validateMetadata(meta) {
	return new _Validator(null,null,meta).validateMetadata();
	}
	function validateEvent(event, data) {
	return new _Validator(event,data).validateEvent();
	}
	ua.validateMetadata = validateMetadata;
	ua.validateEvent = validateEvent;
	return va.exports;
	}({});


	var r = null;

	// check instal by checking window.fgq which is set by code snippet
	var fbq = window.fbq;
	if (!fbq)
	return util.logError('Pixel code is not installed correctly on this page');

	var slice = Array.prototype.slice;
	var hasOwnProperty = Object.prototype.hasOwnProperty;
	var currentHref = location.href;
	var isLegacyInited = false;
	var isInited = false;
	var isIframe = win.top !== win;
	var pixels = [];
	var initedPixels = {};
	var referrer = document.referrer;
	var ca = {};

	var isEmpty = function ua(data) {
	if (Object.keys)
	return Object.keys(data).length === 0;
	for (var wa in data)
	if (data.hasOwnProperty(wa))
	return false;
	return true;
	};

	// Clone, shallow
	function Clone(obj) {
	for (var attr in obj)
	if (hasOwnProperty.call(obj, attr))
	this[atrr] = obj[atrr];
	}

	// run a method call
	function callMethod(event) {
	if (!plugins.length) {
	var args = slice.call(arguments);
	// fallback for array here?
	var isArgsInArray = args.length === 1 && util.isArray(args[0]);
	if (isArgsInArray)
	args = args[0];

	// if method starts with 'report'
	// do some transformation, seems like legacy code
	if (event.slice(0, 6) === 'report') {
	var xa = event.slice(6);
	if (xa === 'CustomEvent') {
	xa = (args[1] \|\| {}).event \|\| xa;
	args = ['trackCustom', xa].concat(args.slice(1));
	} else
	args = ['track', xa].concat(args.slice(1));
	}

	event = args.shift();

	switch (event) {
	// this is legacy
	case 'addPixelId':
	w = true;
	return init.apply(this, args);
	case 'init':
	isInited = true;
	return init.apply(this, args);
	case 'set':
	return set.apply(this, args);
	case 'track':
	if (regNumber.test(args[0]))
	return legacyConversionEvent.apply(this, args);
	if (isArgsInArray)
	return track.apply(this, args);
	return ia.apply(this, args);
	case 'trackCustom':
	return track.apply(this, args);
	case 'send':
	return send.apply(this, args);
	default:
	util.logError('Invalid or unknown method name "' + ua + '"');
	}
	} else
	fbq.queue.push(arguments);
	}

	fbq.callMethod = callMethod;

	// fbq('init');
	// related to https://developers.facebook.com/docs/facebook-pixel/pixel-with-ads/conversion-tracking#advanced_match
	function init(pixelId, va, wa) {
	if (hasOwnProperty.call(initedPixels, pixelId)) {
	if (va && isEmpty(initedPixels[pixelId].userData)) {
	initedPixels[pixelId].userData = va;
	loadPlugin('IDENTITY');
	} else
	util.logError('Duplicate Pixel ID: ' + pixelId);
	return;
	}
	var xa = {
	agent: !!wa && wa.agent,
	id: pixelId,
	userData: va \|\| {}
	};
	pixels.push(xa);
	initedPixels[pixelId] = xa;
	if (va != null)
	loadPlugin('IDENTITY');
	}

	function set(meta, newMeta, wa) {
	var xa = Validator.validateMetadata(meta);
	if (xa.error)
	util.logError(xa.error);
	if (xa.warnings)
	for (var ya = 0; ya < xa.warnings.length; ya++)
	util.logWarning(xa.warnings[ya]);
	if (hasOwnProperty.call(aa, wa)) {
	for (var i = 0, total = pixels.length; i < total; i++)
	if (pixels[i].id === wa) {
	pixels[i][meta] = newMeta;
	break;
	}
	} else
	util.logWarning('Trying to set argument ' + va + ' for uninitialized pixel ID ' + wa);
	}

	// ia is legacy ?
	function ia(event, data) {
	data = data \|\| {};
	var wa = Validator.validateEvent(event, data);
	if (wa.error)
	util.logError(wa.error);
	if (wa.warnings)
	for (var xa = 0; xa < wa.warnings.length; xa++)
	util.logWarning(wa.warnings[xa]);
	if (event === 'CustomEvent')
	event = data.event;
	track.call(this, event, data);
	}

	// track function
	function track(event, data) {
	var wa = this instanceof Clone ? this : n;
	var isPageview = event === 'PageView';
	for (var i = 0, total = pixels.length; i < total; i++) {
	var methodCall = pixels[i];

	if (isPageview && wa.allowDuplicatePageViews === false && ca[methodCall.id] === true)
	continue;

	submit(methodCall, event, data);

	if (isPageview)
	ca[methodCall.id] = true;
	}
	}

	// send number this is legacy code
	function legacyConversionEvent(event, data) {
	submit(null, event, data);
	}

	// collect enough data for event
	function collectData(ua, event, data) {
	ua = ua \|\| {};
	var query = new Query();
	query.append('id', ua.id);

	// 'Pageview', method name ?
	query.append('ev', event);

	query.append('dl', currentHref);

	query.append('rl', referrer);

	// false
	query.append('if', isIframe);

	// timestamp
	query.append('ts', new Date().valueOf());

	query.append('cd', data);
	query.append('ud', ua.userData);

	// version
	query.append('v', version \|\| fbq.version);

	//
	query.append('a', ua.agent \|\| fbq.agent);
	return query;
	}

	function send(event, data) {
	for (var i = 0, total = pixels.length; i < total; i++)
	submit(pixels[i], event, data);
	}

	// send data
	function submit(ua, event, data) {
	var xa = collectData(ua, event, data);
	var ya = xa.toQueryString();

	// if length is < 2048, then use get
	// else use post with a iframe
	if (2048 > (gifPath + '?' + ya).length) {
	submitByGet(gifPath, ya);
	} else
	submitByPost(gifPath, xa);
	}

	// use gif beacon to collect data
	function submitByGet(path, queryString) {
	var gif = new Image();
	gif.src = path + '?' + queryString;
	}

	// create a form & hidden iframe to post
	function submitByPost(path, query) {
	var iframeName = 'fb' + Math.random().toString().replace('.', '')
	, $form = b.createElement('form');
	$form.method = 'post';
	$form.action = path;
	$form.target = iframeName;
	$form.acceptCharset = 'utf-8';
	$form.style.display = 'none';
	var isIE = !!(a.attachEvent && !a.addEventListener)
	, tag = isIE ? '<iframe name="' + iframeName + '">' : 'iframe'
	, $iframe = doc.createElement(tag);
	$iframe.src = 'javascript:false';
	$iframe.id = iframeName;
	$iframe.name = iframeName;
	$form.appendChild($iframe);
	util.listenOnce($iframe, 'load', function() {
	query.each(function(key, value) {
	var $input = b.createElement('input');
	$input.name = key;
	$input.value = value;
	$form.appendChild($input);
	});
	util.listenOnce($iframe, 'load', function() {
	$form.parentNode.removeChild($form);
	});
	$form.submit();
	});
	doc.body.appendChild($form);
	}

	// flush method call in fbq with order, which are pushed before js is loaded
	function flushQueue() {
	while (fbq.queue.length && !plugins.length) {
	var event = fbq.queue.shift();
	callMethod.apply(fbq, event);
	}
	}

	//
	function updateFbJsBasePath() {
	scriptTags = doc.getElementsByTagName('script');
	for (var i = 0; i < scriptTags.length && !fbJsBasePath; i++) {
	var segs = scriptTags[i].src.split(fbJsName);
	if (segs.length > 1)
	fbJsBasePath = segs[0];
	}
	}

	// load a plugin by name
	function loadPlugin(pluginName) {
	var pluginFileName = availablePlugins[pluginName];
	if (pluginFileName)
	if (i[pluginName]) {
	i[pluginName]({
	pixels: pixels
	});
	} else if (plugins.indexOf(pluginName) === -1) {
	if (fbJsBasePath == null)
	updateFbJsBasePath();
	plugins.push(pluginName);
	var $script = doc.createElement('script');
	$script.src = fbJsBasePath + fbJsName + pluginFileName;
	$script.async = true;
	var firstScriptTag = scriptTags[0];
	if (firstScriptTag)
	firstScriptTag.parentNode.insertBefore($script, firstScriptTag);
	}
	}

	fbq.loadPlugin = loadPlugin;

	function registerPlugin(ua, va) {
	if (ua && va) {
	i[ua] = va;
	va({
	pixels: pixels
	});
	var wa = plugins.indexOf(ua);
	if (wa > -1)
	plugins.splice(wa, 1);
	if (!plugins.length)
	flushQueue();
	}
	}
	fbq.registerPlugin = registerPlugin;

	// legacy
	if (fbq.pixelId) {
	isLegacyInited = true;
	init(s.pixelId);
	}
	flushQueue();

	// when multiple pixels of different versions are detected.
	if (isLegacyInited && isInited \|\| win.fbq !== win._fbq)
	util.logWarning('Multiple pixels with conflicting versions were detected on this page');

	if (pixels.length > 1)
	util.logWarning('Multiple different pixels were detected on this page');

	(function() {
	if (fbq.disablePushState === true)
	return;
	// why ?
	if (!history.pushState \|\| !history.replaceState)
	return;

	// seems do something of trakcCustom, pageview?
	var va = function wa() {
	oldHref = currentHref;
	currentHref = location.href;
	if (currentHref === oldHref)
	return;

	var xa = new Clone({
	allowDuplicatePageViews: true
	});

	callMethod.call(xa, 'trackCustom', 'PageView');
	};
	// when pushState
	util.injectMethod(history, 'pushState', va);

	// when replaceState
	util.injectMethod(history, 'replaceState', va);

	// when popup state
	win.addEventListener('popstate', va, false);
	})();
	})(window, document, location, history);
	} catch (e) {
	// send error back
	new Image().src = "https:\/\/www.facebook.com\/" + 'common/scribe_endpoint.php?c=jssdk_error&m=' + encodeURIComponent('{"error":"LOAD", "extra": {"name":"' + e.name + '","line":"' + (e.lineNumber \|\| e.line) + '","script":"' + (e.fileName \|\| e.sourceURL \|\| e.script) + '","stack":"' + (e.stackTrace \|\| e.stack) + '","revision":"2746767","namespace":"FB","message":"' + e.message + '"}}');
	}
	/1482144920,,JIT Construction: v2746767,en_US/
	/**
	* Copyright Facebook Inc.
	*
	* Licensed under the Apache License, Version 2.0
	* http://www.apache.org/licenses/LICENSE-2.0
	*/
	try {
	/**
	* @provides fb.fbevents.plugins.identity
	* @noframework
	* @preserve-header
	*
	* Copyright (c) 2003, Christoph Bichlmeier
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. Neither the name of the copyright holder nor the names of contributors
	* may be used to endorse or promote products derived from this software
	* without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
	* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
	* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
	* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	*
	* str2rstr_utf8 is taken from:
	* "A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
	* Digest Algorithm, as defined in RFC 1321."
	* Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
	* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	* Distributed under the BSD License
	*
	*/
	(function(a) {
	var b = function ka(la) {
	var ma = '', na, oa;
	for (var pa = 0; pa < la.length; pa++) {
	na = la.charCodeAt(pa);
	oa = pa + 1 < la.length ? la.charCodeAt(pa + 1) : 0;
	if (55296 <= na && na <= 56319 && 56320 <= oa && oa <= 57343) {
	na = 65536 + ((na & 1023) << 10) + (oa & 1023);
	pa++;
	}
	if (na <= 127) {
	ma += String.fromCharCode(na);
	} else if (na <= 2047) {
	ma += String.fromCharCode(192 \| na >>> 6 & 31, 128 \| na & 63);
	} else if (na <= 65535) {
	ma += String.fromCharCode(224 \| na >>> 12 & 15, 128 \| na >>> 6 & 63, 128 \| na & 63);
	} else if (na <= 2097151)
	ma += String.fromCharCode(240 \| na >>> 18 & 7, 128 \| na >>> 12 & 63, 128 \| na >>> 6 & 63, 128 \| na & 63);
	}
	return ma;
	};
	function c(ka, la) {
	return la >>> ka \| la << 32 - ka;
	}
	function d(ka, la, ma) {
	return ka & la ^ ~ka & ma;
	}
	function e(ka, la, ma) {
	return ka & la ^ ka & ma ^ la & ma;
	}
	function f(ka) {
	return c(2, ka) ^ c(13, ka) ^ c(22, ka);
	}
	function g(ka) {
	return c(6, ka) ^ c(11, ka) ^ c(25, ka);
	}
	function h(ka) {
	return c(7, ka) ^ c(18, ka) ^ ka >>> 3;
	}
	function i(ka) {
	return c(17, ka) ^ c(19, ka) ^ ka >>> 10;
	}
	function j(ka, la) {
	return ka[la & 15] += i(ka[la + 14 & 15]) + ka[la + 9 & 15] + h(ka[la + 1 & 15]);
	}
	var k = new Array(1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298)
	, l = new Array(8)
	, m = new Array(2)
	, n = new Array(64)
	, o = new Array(16)
	, p = "0123456789abcdef";
	function q(ka, la) {
	var ma = (ka & 65535) + (la & 65535)
	, na = (ka >> 16) + (la >> 16) + (ma >> 16);
	return na << 16 \| ma & 65535;
	}
	function r() {
	m[0] = m[1] = 0;
	l[0] = 1779033703;
	l[1] = 3144134277;
	l[2] = 1013904242;
	l[3] = 2773480762;
	l[4] = 1359893119;
	l[5] = 2600822924;
	l[6] = 528734635;
	l[7] = 1541459225;
	}
	function s() {
	var ka, la, ma, na, oa, pa, qa, ra, sa, ta;
	ka = l[0];
	la = l[1];
	ma = l[2];
	na = l[3];
	oa = l[4];
	pa = l[5];
	qa = l[6];
	ra = l[7];
	for (var ua = 0; ua < 16; ua++)
	o[ua] = n[(ua << 2) + 3] \| n[(ua << 2) + 2] << 8 \| n[(ua << 2) + 1] << 16 \| n[ua << 2] << 24;
	for (var va = 0; va < 64; va++) {
	sa = ra + g(oa) + d(oa, pa, qa) + k[va];
	if (va < 16) {
	sa += o[va];
	} else
	sa += j(o, va);
	ta = f(ka) + e(ka, la, ma);
	ra = qa;
	qa = pa;
	pa = oa;
	oa = q(na, sa);
	na = ma;
	ma = la;
	la = ka;
	ka = q(sa, ta);
	}
	l[0] += ka;
	l[1] += la;
	l[2] += ma;
	l[3] += na;
	l[4] += oa;
	l[5] += pa;
	l[6] += qa;
	l[7] += ra;
	}
	function t(ka, la) {
	var ma, na, oa = 0;
	na = m[0] >> 3 & 63;
	var pa = la & 63;
	if ((m[0] += la << 3) < la << 3)
	m[1]++;
	m[1] += la >> 29;
	for (ma = 0; ma + 63 < la; ma += 64) {
	for (var qa = na; qa < 64; qa++)
	n[qa] = ka.charCodeAt(oa++);
	s();
	na = 0;
	}
	for (var qa = 0; qa < pa; qa++)
	n[qa] = ka.charCodeAt(oa++);
	}
	function u() {
	var ka = m[0] >> 3 & 63;
	n[ka++] = 128;
	if (ka <= 56) {
	for (var la = ka; la < 56; la++)
	n[la] = 0;
	} else {
	for (var la = ka; la < 64; la++)
	n[la] = 0;
	s();
	for (var la = 0; la < 56; la++)
	n[la] = 0;
	}
	n[56] = m[1] >>> 24 & 255;
	n[57] = m[1] >>> 16 & 255;
	n[58] = m[1] >>> 8 & 255;
	n[59] = m[1] & 255;
	n[60] = m[0] >>> 24 & 255;
	n[61] = m[0] >>> 16 & 255;
	n[62] = m[0] >>> 8 & 255;
	n[63] = m[0] & 255;
	s();
	}
	function v() {
	var ka = 0
	, la = new Array(32);
	for (var ma = 0; ma < 8; ma++) {
	la[ka++] = l[ma] >>> 24 & 255;
	la[ka++] = l[ma] >>> 16 & 255;
	la[ka++] = l[ma] >>> 8 & 255;
	la[ka++] = l[ma] & 255;
	}
	return la;
	}
	function w() {
	var ka = new String();
	for (var la = 0; la < 8; la++)
	for (var ma = 28; ma >= 0; ma -= 4)
	ka += p.charAt(l[la] >>> ma & 15);
	return ka;
	}
	function x(ka) {
	var la = 0;
	for (var ma = 0; ma < 8; ma++)
	for (var na = 28; na >= 0; na -= 4)
	ka[la++] = p.charCodeAt(l[ma] >>> na & 15);
	}
	function y(ka, la) {
	r();
	t(ka, ka.length);
	u();
	if (la) {
	x(la);
	} else
	return w();
	}
	function z(ka, la, ma) {
	if (ka === null \|\| ka === undefined)
	return null;
	la = typeof la == 'undefined' ? true : la;
	if (la)
	ka = b(ka);
	return y(ka, ma);
	}
	var aa = /^[a-f0-9]{64}$/i
	, ba = /^[\w!#\$%&'\\+\/\=\?\^`\{\\|\}~\-]+(:?\.[\w!#\$%&'\\+\/\=\?\^`\{\\|\}~\-]+)@(?:[a-z0-9](?:[a-z0-9\-][a-z0-9])?\.)+[a-z0-9](?:[a-z0-9\-]*[a-z0-9])?$/i
	, ca = /^\s+\|\s+$/g
	, da = Object.prototype.hasOwnProperty;
	function ea(ka) {
	return ba.test(ka);
	}
	function fa(ka) {
	if (typeof ka === 'string')
	return ka.replace(ca, '');
	}
	function ga(ka) {
	if (typeof ka === 'string')
	return ka.toLowerCase();
	}
	function ha(ka, la) {
	var ma = null;
	switch (ka) {
	case 'em':
	case 'email':
	var na = fa(ga(la));
	ma = ea(na) ? na : null;
	break;
	default:
	ma = la;
	}
	return ma;
	}
	function ia(ka) {
	var la = ka.pixels \|\| [];
	for (var ma = 0; ma < la.length; ma++) {
	var na = la[ma].userData;
	if (na) {
	var oa = {};
	for (var pa in na)
	if (da.call(na, pa)) {
	var qa = na[pa];
	if (qa != null && !aa.test(qa)) {
	qa = ha(pa, qa);
	if (qa !== null)
	qa = z(qa);
	}
	oa[pa] = qa;
	}
	la[ma].userData = oa;
	}
	}
	}
	var ja = a.fbq;
	if (!(!ja))
	ja.registerPlugin('IDENTITY', ia);
	})(window);
	} catch (e) {
	console.log(e);
	new Image().src="https:\/\/www.facebook.com\/" + 'common/scribe_endpoint.php?c=jssdk_error&m='+encodeURIComponent('{"error":"LOAD", "extra": {"name":"'+e.name+'","line":"'+(e.lineNumber\|\|e.line)+'","script":"'+(e.fileName\|\|e.sourceURL\|\|e.script)+'","stack":"'+(e.stackTrace\|\|e.stack)+'","revision":"2746767","namespace":"FB","message":"'+e.message+'"}}');
	}
	!function(f,b,e,v,n,t,s){
	if(f.fbq)
	return;

	// window.fbq is a function
	// if fbq has callMethod, it will be run
	// else push arguments to fbq.queue

	n=f.fbq=function(){
	n.callMethod? n.callMethod.apply(n,arguments):n.queue.push(arguments)
	};

	// _fbq is a flag to determine inited or not
	if(!f._fbq) f._fbq=n;

	// fbq.push is itself
	n.push=n;
	n.loaded=!0;
	n.version='2.0';

	// fbq.queue
	n.queue=[];
	t=b.createElement(e);
	t.async=!0;
	t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
	document,'script','https://connect.facebook.net/en_US/fbevents.js');

	fbq('init', '1111111111111111', {
	em: 'someone@example.com'
	});
	fbq('track', 'PageView');
	fbq('track', 'Purchase', {currency: 'EUR', value: 15.20});
	fbq('trackCustom', 'MyCustomEvent', {custom_param: 'custom_value'});