document.addEventListener("DOMContentLoaded", function() { const ticketHeader = document.getElementById("ticketHeader"); const fixedTicketHeader = document.getElementById("fixedTicketHeader"); function checkScroll() { const ticketHeaderRect = ticketHeader.getBoundingClientRect(); const parentWidth = ticketHeader.parentElement.offsetWidth; if (ticketHeaderRect.bottom <= 0) { fixedTicketHeader.style.width = `${parentWidth}px`; // Set the width of the fixed header to match the parent container fixedTicketHeader.style.left = `${ticketHeader.parentElement.getBoundingClientRect().left}px`; // Align to the left edge of the parent fixedTicketHeader.style.position = 'fixed'; // Make it fixed at the top fixedTicketHeader.classList.remove("hidden"); fixedTicketHeader.classList.add("top-0", "z-10"); } else { fixedTicketHeader.style.width = ''; // Reset the width to default fixedTicketHeader.style.left = ''; // Reset the left position fixedTicketHeader.style.position = ''; // Reset the position to default fixedTicketHeader.classList.remove("top-0", "z-10"); fixedTicketHeader.classList.add("hidden"); } } window.addEventListener("scroll", checkScroll); window.addEventListener("resize", checkScroll); // Re-check on resize as well });