addEventListener("DOMContentLoaded", function() { document.getElementById("register-btn").addEventListener("click", function(e) { e.preventDefault(); window.location.href = "register.html"; }); document.getElementById("login-form").addEventListener("submit", function(e) { e.preventDefault(); var username = document.getElementById("username").value; var password = document.getElementById("password").value; var users = JSON.parse(localStorage.getItem("users")) || []; var foundUser = users.filter(function(user) { return user.username === username && user.password === password; }); if (foundUser.length > 0) { localStorage.setItem("currentUser", JSON.stringify(foundUser)); window.location.href = "dashboard.html"; } else { alert("Hatal kullanc ad veya ifre. Ltfen tekrar deneyin."); } }); });