Hihero

<link rel="stylesheet" href="dropdown-menu.css" />
                <script type="text/javascript" src="lib/jquery-1.10.2.min.js"></script>
                <script type="text/javascript" src="dropdown-menu.min.js"></script>
                
                <script type="text/javascript">
                $(function() {
                    $('#example4').dropdown_menu({
                        sub_indicators : true,
                        vertical : true
                    });
                });
                </script>
                
                <style type="text/css">
                #example4 {
                    width: 250px;
                }
                </style>
                
                <ul id="example4" class="dropdown-menu">
                    <li><a href="#">Item 1</a></li>
                    <li>
                        <a href="#">Item 2</a>
                        <ul>
                            <li>
                                <a href="#">Submenu Item</a>
                                <ul>
                                    <li><a href="#">Submenu Item 1</a></li>
                                    <li><a href="#">Submenu Item 2</a></li>
                                </ul>
                            </li>
                        </ul>
                    </li>
                </ul>