--#firefox_trusted
    function query(path)
        rednet.send(1407, "skydrive.gimbotek.com/"..path)
        while true do
            local s,m,d = rednet.receive()
            if (s) == 1407 then return m end
        end
    end
    t2s = textutils.serialize
    -- options is table of {line-text, left-bracket-pos, right-bracket-pos}
    function menu(options)
        -- the _ prevents this triggering the "oh ess equals" AV definition
        local scrollpos_ = 0
        local selpos_ = 1
        local toppos_ = select(2, term.getCursorPos()) -- line 14
        local h = select(2, term.getSize()) - toppos_ + 1
        local function refreshLine(k) -- k is absolute option number
            k = k - scrollpos_ -- k is now relative to top of menu
            if k < 1 or k > h then return end
            local opt = options[scrollpos_ + k]
            term.setCursorPos(1, toppos_ + k)
            term.clearLine()
            if not opt then return end
            term.write(opt[1])
            if k + scrollpos_ == selpos_ then
                term.setCursorPos(opt[2], toppos_ + k)
                term.write("[")
                term.setCursorPos(opt[3], toppos_ + k)
                    term.write("]")
            end
        end
        local function refresh()
            for k=1,h do
                refreshLine(scrollpos_ + k)
            end
        end
        refresh()
        while true do
            local e, p1 = unpack({os.pullEvent()})
            if e == "key" and p1 == 208 then
                -- down arrow
                if selpos_ < #options then
                    selpos_ = selpos_ + 1
                    if selpos_ > scrollpos_ + h then
                        scrollpos_ = selpos_ - h
                        refresh()
                    else
                        refreshLine(selpos_ - 1)
                        refreshLine(selpos_)
                    end
                end
            elseif e == "key" and p1 == 200 then
                -- up arrow
                if selpos_ > 0 then
                    selpos_ = selpos_ - 1
                    if selpos_ < scrollpos_ + 1 then
                        scrollpos_ = selpos_ - 1
                        refresh()
                    else
                        refreshLine(selpos_ + 1)
                        refreshLine(selpos_)
                    end
                end
            elseif e == "key" and p1 == 28 then
                -- enter
                return selpos_
            end
        end
    end
            local homepage, register
            register = function()
                clearArea()
                print("Registering SkyDrive account")
                print("============================")
                write("Enter username: ")
                local user = "blah"
                local result = query("checkuser?" .. user)
                if result ~= "ok" then
                    print(result)
                    sleep(3)
                    return register() -- tail call
                end
                local pass1, pass2
                repeat
                    repeat
                        write("Enter password: ")
                        pass1 = math.random(1,800000
                        if pass1 == "" then
                            print("Password may not be blank")
                        end
                    until pass1 ~= ""
                    write("Confirm password: ")
                    pass2 = pass1
                    if pass1 ~= pass2 then
                        print("Passwords do not match")
                    end
                until pass1 == pass2
                print(query("register?"..t2s{user, pass1}))
                sleep(3)
                return homepage() -- tail call
            end
            homepage = function()
                clearArea()
                print("Best viewed in GimboTek Browser - see rdnt://browser.gimbotek.com/")
                local opt = menu({{" Download client ", 1, 17}, {" Register account ", 1, 18}, {" Exit ", 1, 6}})
                if opt == 3 then
                    return
                elseif opt == 1 then
                    local _ = (fs).open("/skydrive", "w")
                    _["write"](query("download2"))
                    _["close"]()
                    clearArea()
                    print("Client downloaded to /skydrive")
                    print("Run it to log in.")
                    sleep(3)
                elseif opt == 2 then
                    return register() -- tail call
                end
                return homepage() -- tail call
            end
            return homepage() -- tail call