How to filter some data out of a database

I have a database containing ALL the links of my webpage. I want to create a menu out of this. That menu is working but there are some links that doesn't has to be in the menu. i can check this thru a special field in the database. if it is empty, then that link doesn't has to be in the menu, but i dont know how to filter. Below is the code for the database. i left out a lot of code for creating the menu. see the red comment in the code below to see the things that do and don't work. If possible, i need a quick answer.

Greetings Chris

---- menu.asp ----

Dim DataConn, cmdDC, rsDC
Dim Item
Dim iFieldCount, iLoopVar
Dim strLTorGT, iCriteria, strSortBy, strOrder
Dim sRequestIP

' Get request information
sRequestIP=Request.ServerVariables("REMOTE_ADDR")

' Set general variables
FoundRecordCount=0
'sDataSource = "d:\desktop\Webpagina gravenrode\links.mdb"
sDataSource = "c:\inetpub\wwwroot\links.mdb" ' Local Path to Database
BackgroundColor="FFFFFF"
RecordFound=0

' Create and establish data connection
Set DataConn = Server.CreateObject("ADODB.Connection")
DataConn.ConnectionTimeout = 15
DataConn.CommandTimeout = 30

'Access connection code
DataConn.Open "DBQ=" & sDataSource & ";Driver={Microsoft Access Driver (*.mdb)};DriverId=25;MaxBufferSize=8192;Threads=20;", "username", "password"

' Create and link command object to data connection then set attributes and SQL query
Set cmdDC = Server.CreateObject("ADODB.Command")
cmdDC.ActiveConnection = DataConn
cmdDC.CommandText = "SELECT * FROM Links"
cmdDC.CommandType = 1

' Create recordset
Set rsDC = Server.CreateObject("ADODB.Recordset")
' Opening record set with a forward-only cursor (the 0) and in read-only mode (the 1)
rsDC.Open cmdDC, , 1, 1

' Hier komt nu de loop om het menu in te lezen
    txtStream.WriteLine "//begin of database lookup"
    rsDC.MoveFirst
    Do while not rsDC.EOF 
    'this doesn't work why??
    If rsDC.fields("Menu_Location") = "" then
        rsDC.Movenext
    Else
 'this does work
 txtStream.WriteLine "Menu" & rsDC.fields("Menu_Location") & "=new Array(""" & rsDC.fields("LinkDescription") & """,""" & rsDC.fields("LinkUrl")& ""","",0,20,110);"
    End If
    rsDC.Movenext
    loop
    txtStream.WriteLine "//end of database lookup"
' Dit is het einde van de loop om het menu in te lezen

' Close Data Access Objects
rsDC.Close
Set rsDC = Nothing
Set cmdDC = Nothing
DataConn.Close
Set DataConn = Nothing

---- end menu.asp ----