<div class="navbar navbar-default navbar-fixed-top" role="navigation">
    <div class="container">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">Project name</a>
        </div>
        <div class="collapse navbar-collapse">
            <ul class="nav navbar-nav">
                <li class="first">
                    <a href="#" title="Главная">Главная</a>
                </li>
                <li class="last active dropdown">
                    <a href="#" title="не  главная" class="dropdown-toggle" data-toggle="dropdown">не главная <b
                            class="caret"></b>
                    </a>
                    <ul class="dropdown-menu">
                        <li class="dropdown-submenu"><a href="index.php?id=3">Дочерний документ</a></li>
                        <li class="dropdown-submenu"><a href="index.php?id=4">второй Дочерний документ</a>
                            <ul class="dropdown-menu">
                                <li class="dropdown-submenu"><a href="index.php?id=6">Дочерний дочернего</a></li>
                            </ul>
                        </li>
                    </ul>
                </li>
            </ul>
        </div>
        <!--/.nav-collapse -->
    </div>
</div>