Untitled

<!DOCTYPE html>
<html>
<head>
    <title>Test Lander Mass Campaign Pixel</title>
    <script type='text/javascript'>
        function pixelmc() {
            function getURLParameter(name) {
                return decodeURI(
                  (RegExp(name + '=' + '(.*?)(&|$)').exec(location.search)||[,null])[1] || ''
                )
            }
            var nameOfGetParamWithCampaignKey = 'key';
            var campkey = getURLParameter( nameOfGetParamWithCampaignKey );
            var binom_domain = 'https://TRACKER.COM/';
            window.script = document.createElement('script');
            script.src = binom_domain+'click.php?key='+campkey+'&lp_type=pixel&'+window.location.search.substring(1)+'&to_lander=2';
            document.head.appendChild(script);
            function getUclick() {
                var m = document.cookie.match(new RegExp('(?:^|; )' + 'uclick' + '=([^;]*)'));
                var u = m ? decodeURIComponent(m[1]) : undefined;
                return u;
            }
            function fxOfLnks() {
                var u = getUclick();
                if (typeof u == 'undefined') return false;
                var l = document.getElementsByTagName('a');
                for (var i=0;i<l.length;i++){
                    var href = l[i].getAttribute('href');
                    if (href.indexOf('&event')!=-1 || href.indexOf('?event')!=-1 || href.indexOf('?lp=1')!=-1 || href.indexOf('?lp=data_upd')!=-1 || href.indexOf('?cnv_id=OPTIONAL')!=-1){
                        l[i].href = href+'&uclick='+u;
                    }
                }
            } ``
            script.addEventListener('load', function() {
                pixelmc_clientCode(window.tokens);
            });
        }
        function pixelmc_clientCode(tokens) {
            const block = document.querySelector('.uclick')
            if (block) {
                block.innerHTML = tokens.city;
            }
        }
        pixelmc();
    </script>
</head>
<body>
<h2 class="city"></h2>
</body>
</html>