script> window.onload = function() { const script = document.createElement('script'); script.src = 'https://booking.tekmetric.com/iframe/modal.js?time=' + new Date().getTime(); script.defer = true; document.body.appendChild(script); const link = document.createElement('link'); link.rel = 'stylesheet'; link.href = 'https://booking.tekmetric.com/iframe/modal.css?time=' + new Date().getTime(); document.head.appendChild(link); };