权限问题

set rs=server.createobject("adodb.recordset")
sqlcmd="select "&imgtype&" from wygkway where id="&id
rs.open sqlcmd,conn,1,1,1

imagename=imgtype&"/"&rs(0)

if imagename<>imgtype&"nothing" then

set fsk=server.createobject("scripting.filesystemobject")

if fsk.fileexists(server.mappath(imagename)) then
 fsk.deletefile server.mappath(imagename)
end if
set fsk=nothing

end if
rs.close
set rs=nothing
删除的时候说我  这里 （fsk.deletefile server.mappath(imagename)）没权限