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<script> console.log('init campaign id'); var bc = { utm_extractors: { localStorage: function extract_from_localstorage() { return window.localStorage.getItem('bc_utm_campaign'); }, queryString: function extract_from_query() { let params = bc.util.urlParams(); return (params['utm_campaign']) ? params['utm_campaign'] : null; }, referrer: function extract_from_referrer() { // set some variables for later use let uri = document.referrer; let today = new Date(); let year = today.getFullYear().toString().substring(2); let monthNumber = today.getMonth() + 1; let month = (monthNumber < 10) ? '0' + monthNumber.toString() : monthNumber.toString(); // generate campaign id let suffix = "bc1w"; let ref = (uri === "") ? "dt" : ((uri.match(/(google|bing|yahoo|yandex)/)) ? "se" : "rf"); let source = (uri.match(/(facebook)/)) ? "fb" : ((uri.match(/(youtube)/)) ? "yt" : ((uri.match(/(instagram)/)) ? "in" : "xy")); return suffix + ref + source + year + "xy" + month; } }, pipeline: function pipeline() { return [bc.utm_extractors.queryString, bc.utm_extractors.localStorage, bc.utm_extractors.referrer]; }, util : { urlParams: function urlParams() { let currentUrl = window.location.href; let queryString = currentUrl.slice(currentUrl.indexOf('?') + 1); return queryString.split('&') .map(e => e.split('=')) .filter(e => (e.length == 2 && e[1] !== '')) .reduce((acc, e) => {acc[e[0].toString()] = e[1]; return acc;}, {}); }, addCampaignIdToForm: function addCampaignIdToForm(campaignid) { let hiddenInput = document.createElement('input'); hiddenInput.setAttribute('id', 'campaign'); hiddenInput.setAttribute('name', 'campaignid'); hiddenInput.setAttribute('type', 'hidden'); hiddenInput.setAttribute('value', campaignid); // DANGERZONE: getreponse lps contain more forms than you can see. Because it is not clear which form // is by us we add the campaignid pararamter to every single form! this should not lead to any // problems. but you never know.... document.querySelectorAll('form').forEach(form => form.appendChild(hiddenInput)); }, extendOrderPageLink: function extendOrderPageLink(a, campaignId) { let href = a.href; if (href.indexOf('?') === -1) { // if there are no parameters already just add it href = href + '?'; } else { // there seem to be more parameter, just add the new one href = href + '&'; } href = href + 'utm_campaign=' + campaignId; a.href = href; }, extendAllOrderPageLinks: function extendOrderPageLinks(campaignId) { let allLinks = []; // i really need iterators document.querySelectorAll('a').forEach(a => allLinks.push(a)); // get all links allLinks.filter(a => a.href.indexOf('smi-live.com') !== -1) // remove those that do not point to our smipp .forEach(x => bc.util.extendOrderPageLink(x, campaignId)); } }, execute: function execute() { let campaignId = null; bc.pipeline().some(f => { campaignId = f(); return campaignId != null;}); localStorage.setItem('bc_utm_campaign', campaignId); bc.util.addCampaignIdToForm(campaignId); bc.util.extendAllOrderPageLinks(campaignId); } }; bc.execute(); </script>