const value = document.querySelector("#satisfaction_level");
const input = document.querySelector("#satisfaction");
value.textContent = input.value;
input.addEventListener("input", (event) => {
	value.textContent = event.target.value;
});
const form = document.getElementById('userinfo');

const checkboxes = form.querySelectorAll('input[name="interests"]');
const checkedCount = Array.from(checkboxes).some(cb => cb.checked).length;

form.addEventListener('submit', (event) => {
	if (checkedCount < 1) {
		event.preventDefault();
		alert('Please select at least one interest.');
	}
});