帮我看看我错在哪里？？？

[hzau1]

<select name="select" onChange=location.href='default.asp?anclassid='+this.value>
<option value=0>全部显示</option>
<%
set rs=server.CreateObject("adodb.recordset")
rs.Open "select * from Smart_culture_anclass order by anclassidorder desc",conn,1,1
while not rs.eof
%>
<option value=<%=rs("anclassid")%> <%if rs("anclassid")=request("anclassid") then%>selected<%end if%>><%=rs("anclass")%></option>
<%
response.Write "<script>alert('"&rs("anclassid")&"')</script>"
rs.movenext
wend
rs.close
set rs=nothing
%>
</select>

[八哥]

没有错

[hzau1]

但是真的有问题呀，，

<%if rs("anclassid")=request("anclassid") then%>selected<%end if%>

起不到作用

[hzau1]

在线急等！！