const h = () => { const iframe = document.createElement('iframe'); iframe.src = '/alt-mba-cta-in/'; iframe.style.width = '100%'; iframe.style.height = '100%'; iframe.style.border = 'none'; document.getElementById('alt-cta-iframe').replaceWith(iframe); document.getElementById('alt-cta-popup-btn').removeEventListener('click', h); }; document.getElementById('alt-cta-popup-btn').addEventListener('click', h);