I would be so grateful, if someone could help me with the following scenario. 

I've got a master page, which has an accordion.  I'm using the accordion in every page of my website.  So, I've gotten the accordion to remember which section to keep open depending on where the user is in the sitemap.  I did this by comparing an id in the query string to the second level id of the accordion menu (which is database driven).

The headers of the accordion are images.  I want a light version of the image when not selected and a dark version of the image when selected, a visual cue as to which section is active.  I find that I'm doing the comparison of the query string id to the second level id in the ItemDataBound of the Repeater for the Accordion to determine what the Accordion's selected index is.  And at this point I should set the url for the image header to the dark version.  But, I'm stuck as to how I can access the image from the Accordion Header.  Anyone have any ideas?

I tried this, but did not work:  DirectCast(accNavMenu.FindControl("TopNavImage"), Image).ImageUrl

Anyone have any idea how to set the accordion's headertemplate/image url from the itemtemplate/repeater within the ItemBound of repeater? 

I've listed a code snippet below.  Thanks in Advance!

OnItemDataBound="accNavMenu_ItemDataBound"

FramesPerSecond="40" TransitionDuration="250"

AutoSize="None" RequireOpenedPane="false" SuppressHeaderPostbacks="false"

HeaderCssClass="accordionHeader" ContentCssClass="accordionContent" >

<Panes></Panes>

<HeaderTemplate><asp:Image ID="TopNavImage" runat="server" /></HeaderTemplate>

<ContentTemplate>

<asp:Repeater ID="rptLinks" runat="Server" OnItemDataBound="rptLinks_ItemDataBound">

<ItemTemplate>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="./Images/arrow_gray.jpg" alt="arrow" id="arrow" />

<asp:HyperLink ID="lnk" runat="server"></asp:HyperLink><br />

<asp:Label ID="lblNavHeaderId" runat="server" Text="" Visible="false"></asp:Label>

<asp:Label ID="lblNavId" runat="server" Text="" Visible="false"></asp:Label>

</ItemTemplate>

</asp:Repeater>

</ajaxToolkit:Accordion>

Imports System
Imports System.Collections
Imports System.Collections.Generic
Imports System.Configuration
Imports System.Data
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.HtmlControls
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Data.SqlClient
Imports AjaxControlToolkit
Partial Class Skeeter
    Inherits System.Web.UI.MasterPage
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        If Not IsPostBack Then
            Dim levelId As String = Request.QueryString("levelId")
            ParseOutput.Text = levelId
            BindCategoryData()
        End If

    End Sub

    Protected Sub BindCategoryData()
        ''Create the stored procedure command object
        Dim connectionString As String = ConfigurationManager.ConnectionStrings("Skeeter").ConnectionString
        Dim dbConnection As SqlConnection = New SqlConnection(connectionString)
        Dim dbCommand As SqlCommand = New SqlCommand("GetLeftNavigation", dbConnection)
        dbCommand.CommandType = CommandType.StoredProcedure
        ''create the parameter object for the stored procedure if there were any parameters
        ''create our DataAdapter and DataSet objects
        Dim objDA As New SqlDataAdapter(dbCommand)
        Dim objDS As New DataSet()
        ''fill the dataset
        objDA.Fill(objDS)
        objDS.Tables(0).TableName = "Headers"
        objDS.Tables(1).TableName = "Links"
        objDS.Relations.Add("LinksByHeader", objDS.Tables("Headers").Columns("NavHeaderId"), objDS.Tables("Links").Columns("NavHeaderID"))
        ''close connection
        dbConnection.Close()
        ''Bind
        accNavMenu.DataSource = objDS.Tables("Headers").Rows
        accNavMenu.DataBind()
       
    End Sub
    Sub accNavMenu_ItemDataBound(ByVal sender As Object, ByVal e As AccordionItemEventArgs)
        If e.AccordionItem.ItemType = AccordionItemType.Header Then
            DirectCast(e.AccordionItem.FindControl("TopNavImage"), Image).ImageUrl = DirectCast(e.AccordionItem.DataItem, DataRow)("leftnavimageoff").ToString()
            Dim levelId As String = Request.QueryString("levelId")
            'Set Selected Index dynamically in repeater 'accNavMenu.SelectedIndex = 2
        Else
            Dim rptLinks As Repeater = DirectCast(e.AccordionItem.FindControl("rptLinks"), Repeater)
            rptLinks.DataSource = DirectCast(e.AccordionItem.DataItem, DataRow).GetChildRows("LinksByHeader")
            rptLinks.DataBind()
        End If
    End Sub
    Private Sub MyAccordion_ItemCommand(ByVal sender As Object, ByVal e As CommandEventArgs)
        'Response.Write(e.CommandName + " Fired on " + DateTime.Now.ToString())
    End Sub
    Protected Sub rptLinks_ItemDataBound(ByVal sender As Object, ByVal e As RepeaterItemEventArgs)
        If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
            Dim dr As DataRow = DirectCast(e.Item.DataItem, DataRow)
            Dim lnk As HyperLink = DirectCast(e.Item.FindControl("lnk"), HyperLink)
            lnk.NavigateUrl = dr("linkurl").ToString()
            lnk.Text = dr("linktext").ToString()
            'get the level from the query string
            'If levelid is the link being rendered, set the selectedindex to the parentid
            Dim levelId As String = Request.QueryString("levelId")
            Dim childi = dr.ItemArray(0)
            Dim parenti = dr.ItemArray(1)
            If levelId = childi Then
                parenti = parenti - 2
                accNavMenu.SelectedIndex = parenti
               'How can I set the TopNavImage URL to something different here
              'Theory being if this section is selected, the header image should be darker than the others
            End If
        End If
    End Sub
   
    Protected Sub BindSubCategoryData()
        Dim connectionString As String = ConfigurationManager.ConnectionStrings("Skeeter").ConnectionString
        Dim dbConnection As SqlConnection = New SqlConnection(connectionString)
        Dim dbCommand As SqlCommand = New SqlCommand("GetNavigation", dbConnection)
        dbCommand.CommandType = CommandType.StoredProcedure

        'Set parms
        Dim dbparam_parentid As SqlParameter = New SqlParameter("@parentlevelid", SqlDbType.Int)
        dbparam_parentid.Value = 2
        dbCommand.Parameters.Add(dbparam_parentid)

        dbConnection.Open()
        Dim rd As System.Data.SqlClient.SqlDataReader = dbCommand.ExecuteReader()
        rd.Close()
        dbConnection.Close()
    End Sub
    
   End Class

Ooops, didn't realize I had posted this question twice, here's the active thread:

http://forums.asp.net/p/1242295/2290308.aspx#2290308