Write javascript output to file on server

Question

So I have this HTML file that tests the user\'s screen resolution, and plugins installed using Javascript. So when the user accesses the page it sees: (e.g.) Your current sc

Answer 1

Do a request from javascript to a page which runs server side code.

Send post request with ajax http://www.javascriptkit.com/dhtmltutors/ajaxgetpost.shtml to for example an apsx page. From aspx you could save it to a text file or database.