You don't want to open an XPage document, then what kind of document are you trying to open? A native Notes Form - as that looks like what that URL would be attempting to open? If that is the case then why?
I'm assuming that the DB JTJ.nsf has the default open for the web browser to some XPage so I'm having trouble figuring out what you are needing to do, ie. why not open the document in an XPage?