王陆和帝琉第几章:ASP问题,急!!!!

请教高高手，我的网页有问题，但不知问题在哪？拜托...感激不尽！！！
<!--#include file="conn.asp"-->
<!--#include file="isadmin.asp"-->
<%
id = trim(request("yiqiid"))
fenhao = server.htmlencode(trim(request("fenhao")))
yiqiname = server.htmlencode(trim(request("yiqiname")))
xinghao = server.htmlencode(trim(request("xinghao")))
guige = server.htmlencode(trim(request("guige")))
price = server.htmlencode(trim(request("price")))
xz = server.htmlencode(trim(request("xz")))

if fenhao = "" then
conn.close
set conn = nothing
response.write "<script>alert('请输入仪器分号');history.go(-1);</script>"
response.end
end if
if yiqiname = "" then
conn.close
set conn = nothing
response.write "<script>alert('请输入仪器名称');history.go(-1);</script>"
response.end
end if
if xinghao = "" then
conn.close
set conn = nothing
response.write "<script>alert('请输入型号');history.go(-1);</script>"
response.end
end if

if guige = "" then
conn.close
set conn = nothing
response.write "<script>alert('请输入仪器规格');history.go(-1);</script>"
response.end
end if
if price = "" then
conn.close
set conn = nothing
response.write "<script>alert('请输入仪器单价');history.go(-1);</script>"
response.end
end if

sql = "select * from shebei where yiqiid="&id
set rs = server.createobject("adodb.recordset")
rs.open sql,conn,1,3
if rs.bof and rs.eof then
rs.close
set rs = nothing
conn.close
set conn = nothing
response.write "<script>alert('请不要捣乱');top.window.location.href='adminmain.asp';</script>"
response.end
else
rs("fenhao")=fenhao
rs("yiqiname")=yiqiname
rs("xinghao")=xinghao
rs("guige")=guige
rs("price")=price
rs.update
rs.close
set rs = nothing
conn.close
set conn = nothing
end if
response.write "<script>alert('修改成功');window.location.href='editshebei.asp?id="&id&"';</script>"

%>
现象:第1行"="附近有语法错误
我把 sql = "select * from shebei where yiqiid="&id 改成sql = "select * from shebei "就能成功,但response.write "<script>alert('修改成功');window.location.href='editshebei.asp?id="&id&"';</script>"
又找不到链接.非常谢谢你!