https://bienen-janisch.at/wp-content/plugins/delucks-seo/modules/b…/statistics/assets/js/frontend.js?ver=2.7.2

1function getParameterByName(name, url = window.location.href) {
2    name = name.replace(/[\[\]]/g, '\\$&');
3    var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),
4        results = regex.exec(url);
5    if (!results) return null;
6    if (!results[2]) return '';
7    return decodeURIComponent(results[2].replace(/\+/g, ' '));
8}
9
10var index = window.location.href.indexOf('?')
11if(index != -1){
12	var querystring = '';
13    var appendParams = new Array('utm_campaign', 'utm_medium', 'utm_source');
14
15    appendParams.forEach(function(queryParameter){
16    	if(typeof(getParameterByName(queryParameter)) == 'string'){
17        	querystring += queryParameter + '=' + getParameterByName(queryParameter) + '&';
18    	}
19    });
20
21    querystring = querystring.slice(0, -1);
22
23    if(querystring !=  ''){
24        var tagA = document.getElementsByTagName('a');
25
26        for(var i = 0; i < tagA.length; i++){
27            var href = tagA[i].getAttribute('href');
28
29            href += (href.indexOf('?') != -1)? '&' : '?';
30            href += querystring;
31
32            tagA[i].setAttribute('href', href);
33        }
34    }
35}
36
37var utm_campaign 	= getParameterByName('utm_campaign');
38var utm_medium 		= getParameterByName('utm_medium');
39var utm_source 		= getParameterByName('utm_source');
40
41if(utm_source !== null && utm_source.length){ $('form input[type="hidden"][name="uTMSource1"]').val(utm_source); }
42if(utm_medium !== null && utm_medium.length){ $('form input[type="hidden"][name="uTMMedium1"]').val(utm_medium); }
43if(utm_campaign !== null && utm_campaign.length){ $('form input[type="hidden"][name="uTMCampaign1"]').val(utm_campaign); }