asp 剔除url指定参数

asp 删除url指定参数
我的url是 http://127.0.0.1/index.asp?aaa=1&bbb=2&ccc=3

我要删除aaa后就是

http://127.0.0.1/index.asp?bbb=2&ccc=3

删除bbb就是

http://127.0.0.1/index.asp?aaa=1&ccc=3

代码改怎么写啊 

高手们帮帮忙啊

[解决办法]
这个发错了！！

VBScript code

s = "http://127.0.0.1/index.asp?aaa&bbb=2&ccc=3"response.write removeQueryParam(s, "bbb")function removeQueryParam(s, p)    ar = split(s,"?")    if ubound(ar) = 0 then       removeQueryParam = s    else       QueryString = ar(1)       ar2 = split(QueryString, "&")       for i=0 to ubound(ar2)           if left(ar2(i), len(p)+1) = p & "=" or ar2(i) = p then               ar2(i) = ""           end if       next       removeQueryParam = Join(ar2, "&")       removeQueryParam = replace(removeQueryParam, "&&", "&")       if left(removeQueryParam, 1) = "&" then           removeQueryParam = right(removeQueryParam, len(removeQueryParam)-1)       end if    end ifend function