<script>
const form = document.getElementById('myForm');
const checkbox = document.getElementById('agreeCheckbox');
const warningMessage = document.getElementById('warningMessage');
form.addEventListener('submit', function (event) {
if (!checkbox.checked) {
event.preventDefault(); // Stop form submission
warningMessage.style.display = 'block'; // Show warning
} else {
warningMessage.style.display = 'none'; // Hide warning
}
});
</script>