Can someone please explain how to use StaticDisplayLevels with the CSSAdapters?

I'm using build 24242.

So what css adjustment is needed to show for example:

Menu code:

<asp:Menu ID="EntertainmentMenu" runat="server" Orientation="Horizontal" onmenuitemclick="OnClick" CssSelectorClass="SimpleEntertainmentMenu" StaticDisplayLevels="2">
    <Items>
        <asp:MenuItem Text="Home">
            <asp:MenuItem Text="Music">
                <asp:MenuItem Text="Classical" />
                <asp:MenuItem Text="Rock">
                    <asp:MenuItem Text="Electric" />
                    <asp:MenuItem Text="Acoustical" />
                </asp:MenuItem>
                <asp:MenuItem Text="Jazz" />
            </asp:MenuItem>
            <asp:MenuItem Text="Movies" Selectable="false">
                <asp:MenuItem Text="Action" />
                <asp:MenuItem Text="Drama" />
                <asp:MenuItem Text="Musical" />
            </asp:MenuItem>
        </asp:MenuItem>
    </Items>
</asp:Menu>

It should return Home Music and Movies as static Items. I couldn't figure out to do it with just css.

Now I replaced a bit inside the BuildItem function:

if ((item.ChildItems != null) && (item.ChildItems.Count > 0))
{
    BuildItems(item.ChildItems, false, writer);
}


replaced by:

if ((item.ChildItems != null) && (item.ChildItems.Count > 0))
{
    if (item.Depth + 1 < menu.StaticDisplayLevels)
    {
        foreach (MenuItem statItem in item.ChildItems)
        {
            BuildItem(statItem, writer);
        }
    }
    else
	    BuildItems(item.ChildItems, false, writer);
}

But I guess it should be possible to keep the code standard, right??