<script>
var GA_MEASUREMENT_ID = 'G-XXXXXXXX';
window.dataLayer = window.dataLayer || [];
function gtag() { dataLayer.push(arguments); }
gtag('js', new Date());
gtag('config', GA_MEASUREMENT_ID);
var _sfAnalyser = {
processing: false,
init: function () {
this.processing = true;
var qs = location.search.substr(1);
if (qs) {
var pairs = qs.split('&'), len = pairs.length;
for (var i = 0; i < len; i++) {
temp = pairs[i].split('=');
tf.parm[unescape(temp[0])] = unescape(temp[1]);
}
}
if (tf.parm['orderno']) this.run();
},
run: function () {
if (!tf.core || (!tf.nametag.get('xml_basket') && tf.pgid == 'D-8') || (tf.core.Basket.items._cnt == 0 && tf.pgid == 'D-6')) {
setTimeout(_sfAnalyser.run, 100);
return;
}
function unfmt(v) {
var vv = v.toString().replace(/[^\d,.]/g, '');
if (vv.match(/^([\d.]+),(\d+)$/)) {
vv = RegExp.$1.replace(/\./g, '') + '.' + RegExp.$2;
}
else {
vv = vv.replace(/,/g, '');
}
return vv;
}
function attributify(xml, tag) {
var s = xml.match(RegExp('<' + tag + '.*?>', 'g'));
if (s && s.length > 0) {
s = s[0];
eval('var o={' + s.replace(RegExp('<' + tag + ' '), '').replace(/\/?>$/, '').replace(/(\S+?)="(.*?)"/g, '"$1":"$2",').replace(/,$/, '') + '}');
return o;
}
else return null;
}
var total = unfmt(tf.parm['orderAmount'] || '0'), tax = unfmt(tf.parm['tax'] || '0'), shipping = unfmt(tf.parm['shipping'] || '0'), ccy = '', coupon = '';
var xmlBasket = tf.nametag.get('xml_basket').replace(/%3e/g, '>').replace(/%3c/g, '<').replace(/%22/g, '"').replace(/%26/g, '&').replace(/%25/g, '%');
var bskAttr = attributify(xmlBasket, 'basket');
if (bskAttr) {
total = unfmt(bskAttr['total']);
tax = unfmt(bskAttr['tax_total']);
shipping = unfmt(bskAttr['ship_total']);
if (tf.core.nfmt) {
total = tf.core.nfmt.round(total);
tax = tf.core.nfmt.round(tax);
shipping = tf.core.nfmt.round(shipping);
}
}
var shopAttr = attributify(xmlBasket, 'shop');
if (shopAttr) {
ccy = shopAttr['ccurrency'];
}
var orderAttr = attributify(xmlBasket, 'order');
if (orderAttr) {
coupon = orderAttr['voucherApplied'];
}
var itmsForAnalytics = xmlBasket.match(/<item.*?>/g), items = [];
if (itmsForAnalytics) {
for (var n = 0, cnt = itmsForAnalytics.length; n < cnt; n++) {
var itm = itmsForAnalytics[n];
itm = attributify(itm, 'item');
items.push({
'item_id': itm['itemNo'] ? itm['itemNo'] : itm['prodid'],
'item_name': itm['title'],
'affiliation': tf.core['shopName'],
'quantity': '' + itm['quantity'],
'price': '' + unfmt(itm['price'])
})
}
}
if (!xmlBasket && items.length == 0 && tf.pgid == 'D-6') {
var itms = tf.core.Basket.items;
for (var n = 0; n < itms._cnt; n++) {
var itm = itms.get(n);
items.push({
'item_id': itm['itemNo'] ? itm['itemNo'] : itm['prodid'],
'item_name': itm['title'],
'affiliation': tf.core['shopName'],
'quantity': '' + itm['quantity'],
'price': '' + unfmt(itm['price'])
});
}
total = unfmt(tf.core.Basket.chk_total);
tax = unfmt(tf.core.nfmt.round(tf.core.Basket.chk_total_tax));
}
if (!xmlBasket && items.length == 0) {
var isDetailedView = $('#extra').is('.is-detailed-view');
if (isDetailedView) {
var $itmsForAnalytics = $('script[type="application/ld+json"]');
$itmsForAnalytics.each(function () {
var itm = window.JSON.parse($(this).text().replace(/\/\*.*?\*\//g, ''))[0];
if (itm && itm['@type'] == 'Product') {
var o = {
'item_id': itm.sku || itm['@id'].replace(/^Product-/, ''),
'item_name': itm.name,
'affiliation': tf.core['shopName'],
'currency': tf.core.shopCurrency.iso
}
var prc = ((itm.offers && itm.offers.price) ? itm.offers.price : 0);
if (prc) o['price'] = unfmt(prc);
items.push(o);
ccy = tf.core.shopCurrency.iso;
total = unfmt(prc);
}
});
if (items.length > 0) {
gtag('event', 'view_item', {
'value': total,
'currency': ccy,
'items': items
});
}
}
$(tf.core.Basket).off('Add.GA4').on('Add.GA4', function (e, itmNo, itm) {
if (itm) {
items = [];
items.push({
'item_id': itmNo || itm.itemNo,
'item_name': itm.title,
'affiliation': tf.core['shopName'],
'price': unfmt(itm.price),
'currency': tf.core.currentCurrency.iso
});
ccy = tf.core.currentCurrency.iso;
total = unfmt(itm.price);
}
gtag('event', 'add_to_cart', {
'value': total,
'currency': ccy,
'items': items
});
});
$(tf.core.Favorite).off('Add.GA4').on('Add.GA4', function (e, itmNo, itm) {
if (itm) {
items = [];
items.push({
'item_id': itmNo || itm.itemNo,
'item_name': itm.title,
'affiliation': tf.core['shopName'],
'price': unfmt(itm.price),
'currency': tf.core.currentCurrency.iso
});
ccy = tf.core.currentCurrency.iso;
total = unfmt(itm.price);
}
gtag('event', 'add_to_wishlist', {
'value': total,
'currency': ccy,
'items': items
});
});
}
if (tf.pgid == 'D-6') {
gtag('event', 'view_cart', {
'value': total,
'currency': ccy,
'items': items
});
$(document).off('click.remove_from_cart.GA4').on('click.remove_from_cart.GA4', function () {
var idx = $(arguments[0].target.parentElement).attr('onclick');
if (idx) idx = idx.replace(/rmv\('(.*)'\);/, '$1');
if (items[idx]) {
gtag('event', 'view_cart', {
'value': total,
'currency': ccy,
'items': items.slice(idx)
});
}
});
var idBeginCheckout = setInterval(function () {
if (tf.utils.dlgModal.win) {
clearInterval(idBeginCheckout);
gtag('event', 'begin_checkout', {
'value': tf.core.nfmt.round(unfmt(tf.core.Basket.chk_total)),
'currency': ccy,
'tax': tf.core.nfmt.round(unfmt(tf.core.Basket.chk_total_tax)),
'shipping': tf.core.nfmt.round(unfmt(tf.core.Basket.shpP)),
'coupon': tf.exNo || '',
'items': items
});
}
}, 500);
}
else if (tf.pgid == 'D-8') {
gtag('event', 'conversion', {
'send_to': GA_MEASUREMENT_ID,
'value': unfmt(tf.parm['orderAmount'] || '0'),
'currency': ccy,
'transaction_id': tf.parm['orderno']
});
gtag('event', 'purchase', {
'transaction_id': tf.parm['orderno'],
'affiliation': tf.core['shopName'],
'value': total,
'currency': ccy,
'tax': tax,
'shipping': shipping,
'coupon': coupon,
'items': items,
'user_data': {
'email': tf.parm['email'],
'email_hashed': window.sha256(tf.parm['email'])
}
});
}
_sfAnalyser.processing = false;
}
};
if (tf.pgid == 'D-8') {
_sfAnalyser.init();
}
else {
$(function () {
_sfAnalyser.init();
_sfAnalyser.run();
});
}
var sha256 = function sha256(ascii) {
function rightRotate(value, amount) {
return (value>>>amount) | (value<<(32 - amount));
};
var mathPow = Math.pow;
var maxWord = mathPow(2, 32);
var lengthProperty = 'length'
var i, j; // Used as a counter across the whole file
var result = ''
var words = [];
var asciiBitLength = ascii[lengthProperty]*8;
//* caching results is optional - remove/add slash from front of this line to toggle
// Initial hash value: first 32 bits of the fractional parts of the square roots of the first 8 primes
// (we actually calculate the first 64, but extra values are just ignored)
var hash = sha256.h = sha256.h || [];
// Round constants: first 32 bits of the fractional parts of the cube roots of the first 64 primes
var k = sha256.k = sha256.k || [];
var primeCounter = k[lengthProperty];
/*/
var hash = [], k = [];
var primeCounter = 0;
//*/
var isComposite = {};
for (var candidate = 2; primeCounter < 64; candidate++) {
if (!isComposite[candidate]) {
for (i = 0; i < 313; i += candidate) {
isComposite[i] = candidate;
}
hash[primeCounter] = (mathPow(candidate, .5)*maxWord)|0;
k[primeCounter++] = (mathPow(candidate, 1/3)*maxWord)|0;
}
}
ascii += '\x80' // Append Ƈ' bit (plus zero padding)
while (ascii[lengthProperty]%64 - 56) ascii += '\x00' // More zero padding
for (i = 0; i < ascii[lengthProperty]; i++) {
j = ascii.charCodeAt(i);
if (j>>8) return; // ASCII check: only accept characters in range 0-255
words[i>>2] |= j << ((3 - i)%4)*8;
}
words[words[lengthProperty]] = ((asciiBitLength/maxWord)|0);
words[words[lengthProperty]] = (asciiBitLength)
// process each chunk
for (j = 0; j < words[lengthProperty];) {
var w = words.slice(j, j += 16); // The message is expanded into 64 words as part of the iteration
var oldHash = hash;
// This is now the undefinedworking hash", often labelled as variables a...g
// (we have to truncate as well, otherwise extra entries at the end accumulate
hash = hash.slice(0, 8);
for (i = 0; i < 64; i++) {
var i2 = i + j;
// Expand the message into 64 words
// Used below if
var w15 = w[i - 15], w2 = w[i - 2];
// Iterate
var a = hash[0], e = hash[4];
var temp1 = hash[7]
+ (rightRotate(e, 6) ^ rightRotate(e, 11) ^ rightRotate(e, 25)) // S1
+ ((e&hash[5])^((~e)&hash[6])) // ch
+ k[i]
// Expand the message schedule if needed
+ (w[i] = (i < 16) ? w[i] : (
w[i - 16]
+ (rightRotate(w15, 7) ^ rightRotate(w15, 18) ^ (w15>>>3)) // s0
+ w[i - 7]
+ (rightRotate(w2, 17) ^ rightRotate(w2, 19) ^ (w2>>>10)) // s1
)|0
);
// This is only used once, so *could* be moved below, but it only saves 4 bytes and makes things unreadble
var temp2 = (rightRotate(a, 2) ^ rightRotate(a, 13) ^ rightRotate(a, 22)) // S0
+ ((a&hash[1])^(a&hash[2])^(hash[1]&hash[2])); // maj
hash = [(temp1 + temp2)|0].concat(hash); // We don't bother trimming off the extra ones, they're harmless as long as we're truncating when we do the slice()
hash[4] = (hash[4] + temp1)|0;
}
for (i = 0; i < 8; i++) {
hash[i] = (hash[i] + oldHash[i])|0;
}
}
for (i = 0; i < 8; i++) {
for (j = 3; j + 1; j--) {
var b = (hash[i]>>(j*8))&255;
result += ((b < 16) ? 0 : '') + b.toString(16);
}
}
return result;
};
</script>
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