Submitting a Request

request.open("GET",url,false), name and password as optional fourth and fifth arguments.
Does not send request, just stores arguments. You can also set:
- request.setRequestHeader("User-Agent", "XMLHttpRequest")
- request.setRequestHeader("Accept-Language", "en")
- request.setRequestHeader("If-Modified-Since", lastRequestTime.toString())
request.send(null) to send it.