Mobile sticky lazy load after scroll (desktop)

<div>
    <script>
    (function(w){
        var ll   = 1500;          // px count after which code will be inserted
        var code = "<script async type='text/javascript' src='//s.clickiocdn.com/t/common_258.js'><\/script>" +
            "<script class='__lxGc__' type='text/javascript'>" +
            "((__lxGc__=window.__lxGc__||{'s':{},'b':0})['s']['_213880']=__lxGc__['s']['_213880']||{'b':{}})['b']['_655078']={'i':__lxGc__.b++};" +
            "<\/script>";  // code to insert
        var d = document.documentElement;
        var s = document.currentScript;
        var p = s.parentNode;
        function getTopScroll() {
            return (w.pageYOffset || d.scrollTop)  - (d.clientTop || 0);
        }
        function showCode() {
            var div = document.createElement('div');
            div.innerHTML = code;
            p.insertBefore(div, s);
            while (div.firstChild) p.insertBefore(div.firstChild, div);
            p.removeChild(div);
            var scripts = p.getElementsByTagName("script");
            Array.from(scripts).forEach(function(script, index, array) {
                var newScript = document.createElement('script');
                if(script !== s)
                {
                    if(typeof script.src !== "undefined" && script.src && script.sr !== "")
                   {
                       newScript.src = script.src;
                        newScript.className = script.className;
                        p.appendChild(newScript);
                    }
                    else
                    {
                        var data = (script.text || script.textContent || script.innerHTML || "");
                        newScript.className = script.className;
                        newScript.type = script.type;
                        newScript.appendChild(document.createTextNode(data));
                        p.appendChild(newScript);
                    }
                    p.removeChild(script);
                }
            });
        }
        function scrollHandler() {
            if(getTopScroll() >= ll)
            {
                showCode();
                w.removeEventListener('scroll', scrollHandler);
            }
        }
        if(getTopScroll() >= ll){
            showCode();
        }
        else
        {
            w.addEventListener('scroll', scrollHandler);
        }
    })(window);
    </script>
</div>