<?php
                session_start();
                if (isset($_SESSION['username'])) {
                    echo '
                            <a href="../admin/index.php?logout=\'1\'">
                                Logout
                            </a>';
                }
                else{

                    echo '<button type="button" class="btn btn-success" data-toggle="modal" data-target="#popUpWindow">Log In/Register</button>
                    <div class="modal fade" id="popUpWindow">
                        <div class="modal-dialog">
                            <div class="modal-content">
                            <div class="modal-header">
                                  <button type="button" class="close" data-dismiss="modal">&times;</button>
                                  <h1>Login/Register</h1>
                            </div>
                            <div class="modal-body">
                                  <form method="post" action="../admin/login.php">';
                                    include('../admin/errors.php');
                                    include('../admin/server.php');
                                  echo'
                                        <div class="input-group">
                                                <label>Username:</label>
                                                <input type="text" name="username" class="orange bg" >
                                            </div>
                                            <div class="input-group">
                                                <label>Password:</label>
                                                <input type="password" name="password" class="orange bg">
                                            </div><br/>
                                            <div class="input-group">
                                                <button type="submit" class="btn orange" name="login_user">Login</button>
                                            </div>

                                   </form>
                            </div>
                            <div class="modal-footer">

                            </div>

                            </div>
                        </div>
                    </div>


';
                }
                ?>