I have my navigation buile and have a question about navigation with subnav and showing only the current nodes subnav IF the current node is selected AND if the current node is a subpage of the node with the subnav.  Currently my navigation is showing ALL subnav if I am on a node with sub navigation in it. I only need to show the current nodes subnav or if it current node is a child of the main nav node with the subnav then I need to also show its siblings nav.  

This is what I have so far. There is a small thing I am missing and I can't figure out what it is.

<nav id="minisiteMenuBar">
<ul>
    @{var homeNode = @Model.AncestorOrSelf("MinisiteHomepage");}
    <li><a href="@homeNode.Url" class="@Library.If(homeNode.Id == Model.Id, "selected", "")">Home</a></li>
        @foreach (var page in homeNode.Children.Where("Visible"))
        {
            <li>
                <a href="@page.Url" class="@Library.If(page.Id == Model.Id, "selected", "")">@page.Name</a>

                @if(@Model.NodeTypeAlias == "MinisitePage" && @Model.Children.Where("Visible").Count() > 0){

                    if(@page.Children.Where("Visible").Count() > 0)
                    {
                    <ul>
                        @foreach(var childPage in page.Children.Where("Visible && NodeTypeAlias == \"MinisitePage\""))
                        {   
                            <li><a href="@childPage.Url" class="@Library.If(childPage.Id == Model.Id, "selected", "")">@childPage.Name</a></li>
                        }
                    </ul> 
                    }
                }
            else if(@Model.Parent.NodeTypeAlias == "MinisitePage"){
                    <ul>
                    @foreach(var childPage in page.Children.Where("Visible && NodeTypeAlias == \"MinisitePage\""))
                    {   
                        <li><a href="@childPage.Url" class="@Library.If(childPage.Id == Model.Id, "selected", "")">@childPage.Name</a></li>
                    }
                    </ul>
                    }
                    else{}

            </li> 
        }


</ul>

</nav>
}