function generateRandomUuid() { var str = (navigator.userAgent || '') + (navigator.platform || '') + document.cookie + (new Date()).getTime() + Math.random() ; var rotate_left = function (n, s) { return (n << s) | (n >>> (32 - s)); }, cvt_hex = function (val) { var strout = '', i, v; for (i = 7; i >= 0; i--) { v = (val >>> (i * 4)) & 0x0f; strout += v.toString(16); } return strout; }, blockstart, i, j, W = [], H0 = 0x67452301, H1 = 0xEFCDAB89, H2 = 0x98BADCFE, H3 = 0x10325476, H4 = 0xC3D2E1F0, A, B, C, D, E, temp, str_len, word_array = []; str_len = str.length; for (i = 0; i < str_len - 3; i += 4) { j = str.charCodeAt(i) << 24 | str.charCodeAt(i + 1) << 16 | str.charCodeAt(i + 2) << 8 | str.charCodeAt(i + 3); word_array.push(j); } switch (str_len & 3) { case 0: i = 0x080000000; break; case 1: i = str.charCodeAt(str_len - 1) << 24 | 0x0800000; break; case 2: i = str.charCodeAt(str_len - 2) << 24 | str.charCodeAt(str_len - 1) << 16 | 0x08000; break; case 3: i = str.charCodeAt(str_len - 3) << 24 | str.charCodeAt(str_len - 2) << 16 | str.charCodeAt(str_len - 1) << 8 | 0x80; break; } word_array.push(i); while ((word_array.length & 15) !== 14) { word_array.push(0); } word_array.push(str_len >>> 29); word_array.push((str_len << 3) & 0x0ffffffff); for (blockstart = 0; blockstart < word_array.length; blockstart += 16) { for (i = 0; i < 16; i++) { W[i] = word_array[blockstart + i]; } for (i = 16; i <= 79; i++) { W[i] = rotate_left(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1); } A = H0; B = H1; C = H2; D = H3; E = H4; for (i = 0; i <= 19; i++) { temp = (rotate_left(A, 5) + ((B & C) | (~B & D)) + E + W[i] + 0x5A827999) & 0x0ffffffff; E = D; D = C; C = rotate_left(B, 30); B = A; A = temp; } for (i = 20; i <= 39; i++) { temp = (rotate_left(A, 5) + (B ^ C ^ D) + E + W[i] + 0x6ED9EBA1) & 0x0ffffffff; E = D; D = C; C = rotate_left(B, 30); B = A; A = temp; } for (i = 40; i <= 59; i++) { temp = (rotate_left(A, 5) + ((B & C) | (B & D) | (C & D)) + E + W[i] + 0x8F1BBCDC) & 0x0ffffffff; E = D; D = C; C = rotate_left(B, 30); B = A; A = temp; } for (i = 60; i <= 79; i++) { temp = (rotate_left(A, 5) + (B ^ C ^ D) + E + W[i] + 0xCA62C1D6) & 0x0ffffffff; E = D; D = C; C = rotate_left(B, 30); B = A; A = temp; } H0 = (H0 + A) & 0x0ffffffff; H1 = (H1 + B) & 0x0ffffffff; H2 = (H2 + C) & 0x0ffffffff; H3 = (H3 + D) & 0x0ffffffff; H4 = (H4 + E) & 0x0ffffffff; } temp = cvt_hex(H0) + cvt_hex(H1) + cvt_hex(H2) + cvt_hex(H3) + cvt_hex(H4); return temp.toLowerCase().slice(0, 32); } function getCookie(NameOfCookie) { if (document.cookie.length > 0) { let begin = document.cookie.indexOf(NameOfCookie + '=') if (begin != -1) { begin += NameOfCookie.length + 1 let end = document.cookie.indexOf(';', begin) if (end == -1) end = document.cookie.length return unescape(document.cookie.substring(begin, end)) } } return '' } var latest_dataLayer = {"trackId":"wKgD mjY5XG9rRs2C6s0Ag==","trackCode":"goods","trackName":"product_page","pageCode":"goods","langCode":"en","regionCode":"3858","currencyCode":"GBP","orderAmount":0,"shippingFee":0,"goodsId":"418905","catId":"2","parentCatId":"2","adWordsRemarketingAppends":{"ecomm_pagetype":"product","ecomm_prodid":"JScUKleng418905"},"email":"","emailMd5":"","emailSha256":"","UserId":"","fbRemarketingTrackParams":{"content_type":"product_group","content_ids":["JScUKleng418905"]},"fbGoodsIds":["418905"]}; latest_dataLayer.trackId = getCookie('JJSTID'); latest_dataLayer.email = getCookie('email'); latest_dataLayer.emailMd5 = getCookie('emailMd5'); latest_dataLayer.emailSha256 = getCookie('emailSha256'); latest_dataLayer.UserId = getCookie('userId'); latest_dataLayer.sessionCode = generateRandomUuid(); window.dataLayer = window.dataLayer || []; window.dataLayer[0] = latest_dataLayer; if (window.dataLayer.length > 1) { window.dataLayer.push(latest_dataLayer); }

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