I got the code from here and the related files from here. I just changed the paths and kept only one menubar, its not working for me. Here is what I can see:

Here is my code:
In the HTML Head:
<link rel="stylesheet" href="Rules/navbar/jquery.ui.all.css" />
<script src="jquery-1.7.1.js"></script>
<script src="Rules/navbar/jquery.ui.core.js"></script>
<script src="Rules/navbar/jquery.ui.widget.js"></script>
<script src="Rules/navbar/jquery.ui.position.js"></script>
<script src="Rules/navbar/jquery.ui.button.js"></script>
<script src="Rules/navbar/jquery.ui.menu.js"></script>
<script src="Rules/navbar/jquery.ui.menubar.js"></script>
<script>
$(function() {
    function select(event, ui) {
        $("<div/>").text("Selected: " + ui.item.text()).appendTo("#log");
        if (ui.item.text() == 'Quit') {
            $(this).menubar('destroy');
        }
    }
    $("#bar1").menubar({
        position: {
            within: $("#demo-frame").add(window).first()
        },
        select: select
    });
    $(".menubar-icons").menubar({
        autoExpand: true,
        menuIcon: true,
        buttons: true,
        position: {
            within: $("#demo-frame").add(window).first()
        },
        select: select
    });
    $("#bar3").menubar({
        position: {
            within: $("#demo-frame").add(window).first()
        },
        select: select,
        items: ".menubarItem",
        menuElement: ".menuElement"
    });
});
</script>
<style>
    #bar1, #bar2 { margin: 0 0 4em; }
</style>
In the HTML body:
<div class="demo">
<ul id="bar2" class="menubar-icons">
    <li>
        <a href="#File">File</a>
        <ul>
            <li><a href="#Open...">Open...</a></li>
            <li class="ui-state-disabled">Open recent...</li>
            <li><a href="#Save">Save</a></li>
            <li><a href="#Save as...">Save as...</a></li>
            <li><a href="#Close">Close</a></li>
            <li><a href="#Quit">Quit</a></li>
        </ul>
    </li>
    <li>
        <a href="#Edit">Edit</a>
        <ul>
            <li><a href="#Copy">Copy</a></li>
            <li><a href="#Cut">Cut</a></li>
            <li class="ui-state-disabled">Paste</li>
        </ul>
    </li>
    <li>
        <a href="#View">View</a>
        <ul>
            <li><a href="#Fullscreen">Fullscreen</a></li>
            <li><a href="#Fit into view">Fit into view</a></li>
            <li>
                <a href="#Encoding">Encoding</a>
                <ul>
                    <li><a href="#Auto-detect">Auto-detect</a></li>
                    <li><a href="#UTF-8">UTF-8</a></li>
                    <li>
                      <a href="#UTF-16">UTF-16</a>
                      <ul>
                         <li><a href="#Option 1">Option 1</a></li>
                         <li><a href="#Option 2">Option 2</a></li>
                         <li><a href="#Option 3">Option 3</a></li>
                         <li><a href="#Option 4">Option 4</a></li>
                      </ul>
                   </li>
                </ul>
            </li>
            <li><a href="#Customize...">Customize...</a></li>
        </ul>
    </li>
</ul>
</div>
 
     
     
     
    