hi
i ahve this code done so far for my menu bar.

the html
Code:
    		<!-- Menu -->
	<div id="menu-box" class="cleaning-box">
	<a href="#skip-menu" class="hidden">Skip menu</a>
		<ul id="menu">
			<li><asp:LinkButton ID="LkbtnHome" runat="server" Text = "Home" CssClass="active" 
                    onclick="LkbtnHome_Click" /></li>
			<li><asp:LinkButton ID="LkbtnClubNews" runat="server" Text = "ClubNews" 
                    onclick="LkbtnClubNews_Click" /></li>
			<li><asp:LinkButton ID="LkbtnFixtures" runat="server" Text = "Fixtures" 
                    onclick=" LkbtnFixtures_Click" />
                    <ID="Lkbtnsenior" runat="server" Text = "senior" 
                    onclick="Lkbtnsenior_Click"/>
                    </li>
			<li><asp:LinkButton ID="LkbtnServices" runat="server" Text = "Services" 
                    onclick="LkbtnServices_Click" /></li>
			<li><asp:LinkButton ID="LkbtnGallery" runat="server" Text = "Gallery" 
                    onclick="LkbtnGallery_Click" /></li>
			<li><asp:LinkButton ID="LKbtnContact" runat="server" Text = "Contact Us" 
                    onclick="LKbtnContact_Click" /></li>
		</ul>
	</div>
	<!-- Menu end -->
the code behind this
Code:
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }


   
    protected void ResetMenu() 
    {
        LkbtnHome.CssClass = "noscreen";
        LkbtnClubNews.CssClass = "noscreen";
        LkbtnFixtures.CssClass = "noscreen";
        Lkbtnsenior.CssClass = "noscreen";
        LkbtnServices.CssClass = "noscreen";
        LkbtnGallery.CssClass = "noscreen";
        LKbtnContact.CssClass = "noscreen";
        
        PhotoGallery.Visible = false;

    }
    protected void LkbtnHome_Click(object sender, EventArgs e)
    {
        ResetMenu();
      LkbtnHome.CssClass = "active";
        XmlLeftColumn.DocumentSource = "XML/XMLHome.xml";
    }
    protected void LkbtnClubNews_Click(object sender, EventArgs e)
    {
        ResetMenu();
       LkbtnClubNews.CssClass = "active";
       
        XmlLeftColumn.DocumentSource = "XML/XMLClubNews.xml";
    //   XmlmiddleColumn.DocumentSource = "XML/XMLFixtures.xml";
    }
    protected void LkbtnFixtures_Click(object sender, EventArgs e)
    {
        ResetMenu();
       LkbtnFixtures.CssClass = "active";
        XmlLeftColumn.DocumentSource = "XML/XMLFixtures.xml";
    }
    protected void LkbtnServices_Click(object sender, EventArgs e)
    {
        ResetMenu();
       LkbtnServices.CssClass = "active";
        XmlLeftColumn.DocumentSource = "XML/XMLServices.xml";


    }
    protected void Lkbtnsenior_Click(object sender, EventArgs e)
    {
        ResetMenu();
        Lkbtnsenior.CssClass = "active";
        XmlLeftColumn.DocumentSource = "XML/XMLsenior.xml";


    }
    protected void LkbtnGallery_Click(object sender, EventArgs e)
    {
        ResetMenu();
       LkbtnGallery.CssClass = "active";
        XmlLeftColumn.DocumentSource = "XML/XMLGallery.xml";
        XmlLeftColumn.DocumentSource="";
        PhotoGallery.Visible = true;
    }
    protected void LKbtnContact_Click(object sender, EventArgs e)
    {
        ResetMenu();
      LKbtnContact.CssClass = "active";
        XmlLeftColumn.DocumentSource = "XML/XMLContact.xml";
    }
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
     //  Label1.Text = "Stairwell";
      // largeImage.ImageUrl = "~/images/Photos/100_0078.jpg";

    }
    protected void ImageButton2_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
       // Label1.Text = "Stairwell";
       // largeImage.ImageUrl = "~/images/Photos/100_0079.jpg";

    }
    protected void ImageButton3_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
       // Label1.Text = "Apartments in Clairmorris";
       // largeImage.ImageUrl = "~/images/Photos/100_0084.jpg";
    }
    protected void ImageButton4_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
       // Label1.Text = "Chimney Stack Using Beams";
       // largeImage.ImageUrl = "~/images/Photos/100_0086.jpg";
    }
    protected void ImageButton5_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
       // Label1.Text = "Roofing Using Beams";
        //largeImage.ImageUrl = "~/images/Photos/100_0087.jpg";
    }
    protected void ImageButton6_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
        //Label1.Text = "Temporary Roof in progress";
        //largeImage.ImageUrl = "~/images/Photos/100_0099.jpg";

    }
    protected void ImageButton7_Click(object sender, ImageClickEventArgs e)
    {

        XmlLeftColumn.DocumentSource = "";
       // Label1.Text = "Development at Dawn meats";
       // largeImage.ImageUrl = "~/images/Photos/100_0199.jpg";
    }
    protected void ImageButton8_Click(object sender, ImageClickEventArgs e)
    {
        XmlLeftColumn.DocumentSource = "";
       // Label1.Text = "Storage Yard";
       // largeImage.ImageUrl = "~/images/Photos/100_0501.jpg";
    }
  
}
and my css
Code:
/* Menu */

#menu-box {
background: #323232 url('../images/menu-bg.gif') repeat-x 0 0;
border-bottom: 1px solid #3B3B3B;
}

#menu {
width: 900px;
margin: 0 auto;
background: #323232 url('../images/menu-bg.gif') repeat-x 0 0;
}

#menu li {
display: inline;
list-style-type: none;
text-align: center;
}

#menu li a {
font-size: 1.1em;
color: #FFFFFF;
font-weight: bold;
float: left;
display: block;
padding: 0 1.6em;
line-height: 35px;
background: url('../images/li-border.gif') no-repeat 100% center;
}

#menu li a:hover, #menu li a.active {
font-weight: bold;
color: #FFCB5C;
}
#menu li asp:LinkButton:hover, #menu li asp:LinkButton.active
{
font-weight: bold;
color: #FFCB5C;
    }
how can i get the submenu in to using the code the way i have it