Using javascript for pinging a webapp to keep session open

Question

I\'m writing a greasemonkey script to keep session open on a webapp I use for work. Which javascript command would you use to create some feedback with the server and ensure the

Answer 1

This is presuming you don't want to keep the page constantly refreshing, as suggested by others.

Ordinarily, if you were simply looking to ping the server, you would probably do best to do something like use an image that you know exists on the remote server, and check it's height - thus creating traffic.

However, your problem (I presume) needs to access some limited area of the website, in order to keep the session active... with this being the case (and the fact that you can't directly ping), find a page that is 'restricted' and do an Ajax call, or similar. Don't quote me on this, as I'm by no means a JavaScript expert... just throwing out a potential solution.