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      <script>
document.addEventListener("DOMContentLoaded", function() {
    var adContent = '<!DOCTYPE html>'+
                    '<html lang="en">'+
                    '<head>'+
                    '<meta charset="UTF-8">'+
                    '<meta name="viewport" content="width=device-width, initial-scale=1.0">'+
                    '<title>Custom Ad</title>'+
                    '<style>'+
                    'body,html{margin:0;padding:0;overflow:hidden;width:100%;height:100%}'+
                    '.ad-container{display:flex;align-items:center;justify-content:center;width:100%;height:50px;background-color:#f1f1f1;border:1px solid #ccc;text-align:center;padding:10px;box-sizing:border-box;position:fixed;bottom:0;left:0;right:0;z-index:1000}'+
                    '.ad-content{width:320px;height:50px}'+
                    '.sticky{position:fixed;top:0}'+
                    '</style>'+
                    '</head>'+
                    '<body>'+
                    '<div id="adContainer" class="ad-container">'+
                    '<div class="ad-content">'+
                    '<h1>Ad Title</h1>'+
                    '<p>This is a custom ad.</p>'+
                    '<a href="https://example.com" target="_blank">Learn More</a>'+
                    '</div>'+
                    '</div>'+
                    '<script>'+
                    'window.onscroll=function(){toggleStickyAd();alert("b")};'+
                    'function toggleStickyAd(){var adContainer=document.getElementById("adContainer");if(window.scrollY>100){adContainer.classList.add("sticky")}else{adContainer.classList.remove("sticky")}}'+
                    '</'+'script>'+
                    '</body>'+
                    '</html>';

    var iframe = document.createElement('iframe');
    iframe.id = 'iframe1';
    iframe.style.width = '320px';
    iframe.style.height = '50px';
    iframe.style.border = 'none';
    iframe.style.position = 'fixed';
    iframe.style.top = '0';
    iframe.style.right = '0';
    iframe.style.zIndex = '1000';

    var iframe2 = document.createElement('iframe');
    iframe2.id = 'iframe2';
    iframe2.style.width = '320px';
    iframe2.style.height = '50px';
    iframe2.style.border = 'none';
    iframe2.style.position = 'fixed';
    iframe2.style.bottom = '0';
    iframe2.style.left = '0';
    iframe2.style.zIndex = '1000';

    window.onscroll=function(){toggleStickyAd()};
    function toggleStickyAd(){var adContainer=document.getElementById("adContainer");if(window.scrollY>100){adContainer.classList.add("sticky")}else{adContainer.classList.remove("sticky")}};

    document.body.appendChild(iframe); 
    document.body.appendChild(iframe2);

    handleIframeLoad('iframe1');
    handleIframeLoad('iframe2');

    function handleIframeLoad(iframeId) {
            var iframe = document.getElementById(iframeId);
            var iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
            iframeDoc.open();
                iframeDoc.write(adContent);
                iframeDoc.close();
        }
});
</script>

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1KB

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3KB

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108.0ms

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123.0ms

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