xmlhttprequest - Implement HTTP post in Javascript -

hello doing analytical project delay tolerance various applications. need build portable application take user feedback. trying using javascript. whenever, user clicks button on js page have send request http server setup on router change delay. want implement http request (post). know javascript. found ways jquery, protocol intend send 1 parameter(need not hidden) can 1 me this?

your asking how send ajax post w/ url param?

xhr=new xmlhttprequest(); xhr.open("post", "http://helloasdf.cloudfoundry.com/post.token?key=asdf", true); xhr.send(null);