function checkPassword() {
            const password = document.getElementById('password').value;
            const errorElement = document.getElementById('error');
            const correctPassword = '12345';

            if (!password) {
                errorElement.textContent = 'Password is required.';
                return;
            }

            if (password === correctPassword) {
                sessionStorage.setItem('authenticated', 'true');
                window.location.href = 'welcome.html'; // Замените на ваш URL
            } else {
                errorElement.textContent = 'Invalid password. Please try again.';
            }
        }