用UD建了记录集后，我输入的查询条件如果不符合时，我想转到一个“没有找到你的记录”页面，我该怎么做？

<%
Dim Recordset1
Dim Recordset1_numRows

Set Recordset1 = Server.CreateObject("ADODB.Recordset")
Recordset1.ActiveConnection = MM_conn_1_STRING
Recordset1.Source = "SELECT * FROM tab WHERE name LIKE '%"&request("textfield")&"%' ORDER BY ID DESC"
Recordset1.CursorType = 0
Recordset1.CursorLocation = 2
Recordset1.LockType = 1
Recordset1.Open()

Recordset1_numRows = 0
%>

<%if rs.eof and rs.bof then%>
<%response.redirect "back.htm"%>
<%end if%>
以上三句是我加的，但是有错，我该怎么办？

重发：
<%
Dim Recordset1
Dim Recordset1_numRows

Set Recordset1 = Server.CreateObject("ADODB.Recordset")
Recordset1.ActiveConnection = MM_conn_1_STRING
Recordset1.Source = "SELECT * FROM tab WHERE name LIKE '%"&request("textfield")&"%' ORDER BY ID DESC"
Recordset1.CursorType = 0
Recordset1.CursorLocation = 2
Recordset1.LockType = 1
Recordset1.Open()

Recordset1_numRows = 0
%>

<%
If (Recordset1.EOF) Then
Response.Redirect("back.htm")
End If
%>