ASP购物车模块，求解

请大家帮我看下哪里出错了。我是新手，找不出错误啊。
<div id="shopping">
<h3>购物车</h3>
<table width="90%" border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#e1e1e1" >
<%
set rs = Server.CreateObject("ADODB.RecordSet")
sql = "select B.CoID, A.CoName, A.CoNomaMoney, A.CoZhifen, B.GoodID, B.GoodNum, B.GoodMoney from commodity as A, BuyGood as B where B.CoID = A.CoID and B.UserName = '"&request.cookies("login")("username")&"' and B.GoodState = 9"
rs.open sql, conn, 1, 1
%>
<form name='form1' method='post' action=chcount.asp>
<tr bgcolor=#f1f1f1 align=center>
<td width=41% >商品名称</td>
<td width=12% >获得积分</td>
<td width=14% >单价</td>
<td width=11% >数量</td>
<td width=12% >总价</td>
<td width=10% >删除</td>
</tr> <%
GoodSum = rs.recordcount
GoodNum = 0
zhifen = 0
total = 0
do while not rs.eof
%>
<tr bgcolor="#FFFFFF">
<td width="41%" height="30" align="center" ><a href=detail.asp?id=<%=rs("CoID")%> ><%=rs("CoName")%></a>
<input name=GoodID type=hidden value="<%=rs("GoodID")%>">
<input name=CoID type=hidden value="<%=rs("CoID")%>"></td>
<td width="12%" height="30" align="center" ><%=rs("CoZhifen")*rs("GoodNum")%>分</td>
<td width="14%" height="30" align="cennter><%response.write rs("CoNomaMoney")%>元</td>
<td align="center" width="11%" height="30" ><input name=num class=wenbenkuang id="num" value="<%=rs("GoodNum")%>" size=3 maxlength="5"> </td>
<td align="center" width="12%" height="30" ><font color=red><%=rs("GoodMoney")%></font> 元</td>
<td align="center" width="10%" height="30" ><a href=car_save.asp?action=del&id=<%=rs("GoodID")%>><img src="images/trash.gif" width="18" height="18" border="0"></a> </td>
</tr>
<%
GoodNum = GoodNum + rs("GoodNum")
total = total + rs("GoodMoney")
zhifen = zhifen + rs("CoZhifen")*rs("GoodNum")
rs.movenext
loop
rs.close
set rs=nothing
response.Cookies("jifen") = zhifen
%>
<tr bgcolor="#FFFFFF">
<td height=30 colspan=6 align=center > 种数：<font color=red><%=GoodSum%></font> 种　获得积分：<font color=red><%=zhifen%></font> 分　件数：<font color=red><%=GoodNum%></font> 件　共计：<font color=red><%=total%></font> 元</td>
</tr>
<tr bgcolor="#FFFFFF">
<td align="center" height=50 colspan=6><input name="buy" type="button" id="buy" onFocus="this.blur()" onClick="this.form.action='index.asp';this.form.submit()" value="继续购物" border="0">
<input name="change" type="button" id="change" onFocus="this.blur()" onClick="this.form.action='car_save.asp?action=change';this.form.submit()" value="修改数量" border="0">
<input name="delete" type="button" id="delete" onFocus="this.blur()" onClick="this.form.action='ClearShopcart.asp?action=delall';this.form.submit()" value="清空购物车">
<input name="pay" type="button" id="pay" onFocus="this.blur()" onClick="this.form.action='pay.asp';this.form.submit()" value="去收银台"></td>
</tr>
<tr bgcolor="#FFFFFF">
<td height="60" colspan="6"><table width="100%" border="0" cellspacing="0" cellpadding="8">
<tr>
<td><p style="PADDING-LEFT: 20px">如果您想继续购物，请点选继续购物</p>
<p style="PADDING-LEFT: 20px">如果您想更新已在购物车内的产品，请先修改，然后点选修改数量</p>
<p style="PADDING-LEFT: 20px"> 如果您想全部取消已订购在购物车中的产品，请点选清空购物车</p>
<p style="PADDING-LEFT: 20px">如果您满意您所购买的产品，请点选去收银台(会员须先登陆，非会员须先免费注册成为会员)</p></td>
</tr>
</table></td>
</tr>
</table></td>
</tr> </form>
</table>
</div>