User action and time stamp

I need to be able to find out how the user uses my web site, which is written in HTML and JavaScript, by time stamping each action taken by using either JavaScript or Perl/CGI. I would like to have every action taken by the user logged in another file, which I can study at a later date. For example, each time the user selects a reset button, or clicks to a new page, the time of that action is sent to another file and logged with a time stamp. Also I have a basic HTML form in the web site and would like to be able to sent the content of each field to the file as they are completed. These should also be time stamped so I can trace the order in which the fields of the form were completed.