asp获取远程url源代码并过滤掉所有HTML代码

<%
ID = Request.QueryString("ID")
function gethttppage(url)
dim adxmlhttp
set adxmlhttp = Server.createobject("microsoft.xmlhttp")
adxmlhttp.open "get",url,false
adxmlhttp.send()
if adxmlhttp.readystate <> 4 then exit function
gethttppage = Bytes2bStr(adxmlhttp.responsebody)
set adxmlhttp = nothing
End function

function Bytes2bStr(vin)
Dim BytesStream,StringReturn
Set BytesStream = Server.CreateObject("adodb.stream")
BytesStream.Type = 2
BytesStream.Open
BytesStream.WriteText vin
BytesStream.Position = 0
BytesStream.Charset = "GB2312"
BytesStream.Position = 2
StringReturn =BytesStream.ReadText
BytesStream.close
Set BytesStream = Nothing
Bytes2bStr = StringReturn
End function
url = ""&id&""
str = gethttppage(url)
%>
<%
gangzi=RemoveHTML(""&str&"")
Function RemoveHTML(Textstr)
    Dim sStr, regEx
    sStr = Textstr
    Set regEx = New RegExp
    regEx.IgnoreCase = True
    regEx.Global = True
    regEx.Multiline = True
    regEx.Pattern = "<script[\s\S]*?</script>"
    sStr = regEx.Replace(sStr, "")
    regEx.Pattern = "<style[\s\S]*?</style>"
    sStr = regEx.Replace(sStr, "")
    regEx.Pattern = "\s[on].+?=([\""|\'])(.*?)\1"
    sStr = regEx.Replace(sStr, "")
    regEx.Pattern = "<(.[^>]*)>"
    sStr = regEx.Replace(sStr, "")
    Set regEx = Nothing
    RemoveHTML = sStr
End Function
response.Write(""&gangzi&"")
%>