请问如何将下面的产品代码修改成产品修改代码。弄了很久都没弄出来，真灰心，
请高手们帮帮忙，非常感谢。
<%
if session("admin_name")="" then response.end
set rs=server.createobject("adodb.recordset")
%>





<%
if request("action")="save" then
hw_name=request("hw_name")
hw_content=request("hw_content")
hw_cash=request("hw_cash")
hw_pic=request("hw_pic")
sort_id=request("sort_id")
company=request("company")
pifa=request("pifa")
daili=request("daili")
hwsn=request("hwsn")
if not(isnumeric(hw_cash)) then
errmsg="
"+"  商品的价格应该为数字！"
founderr=true
end if
if hw_name="" then
errmsg=errmsg+"
"+"  商品名称不能为空！"
founderr=true
end if
if hw_content="" then
errmsg=errmsg+"
"+"  商品介绍不能为空！"
founderr=true
end if
if sort_id="" then
errmsg=errmsg+"
"+"  商品类别不能为空！"
founderr=true
end if


if hw_pic="" then hw_pic="images/noimage.gif"

if founderr=true then
response.write errmsg
response.write "[返回]"
response.end
else
hw_name=server.htmlencode(hw_name)
hw_name=replace(hw_name," "," ")
hw_name=replace(hw_name,chr(13)&chr(10),"
")


hw_content=server.htmlencode(hw_content)
hw_content=replace(hw_content," "," ")
hw_content=replace(hw_content,chr(13)&chr(10),"
")

hw_pic=server.htmlencode(hw_pic)

sql="select * from hw"
rs.open sql,conn,3,3
rs.addnew
rs("hw_name")=hw_name
rs("hw_content")=hw_content
rs("hw_cash")=hw_cash
rs("sort_id")=sort_id
rs("company")=company
rs("daili")=daili
rs("pifa")=pifa
rs("hw_sn")=hwsn
rs("hw_pic")=hw_pic
rs.update
end if
response.write "
  商品添加成功！"
response.write "[返回]"
rs.close

else
%>

商品子类 <% sql="select * from sort" rs.open sql,conn,3,3 if rs.eof then %> <%else do while not rs.eof%> "><%=rs("sort_name")%> <%rs.movenext loop end if rs.close%>      商品名称      商品编号      所属大类 <% sql="select * from company" rs.open sql,conn,3,3 if rs.eof then %> <%else do while not rs.eof%> "><%=rs("com_name")%> <%rs.movenext loop end if rs.close%>      包装类型      商品价格      批发价格      代理价格      商品介绍      暂时没有……      商品图片

<%
end if
set rs=nothing
conn.close
set conn=nothing
%>