note 59250 added to reserved.variables

Is there an easy way to track the duration of time each specific visitor spends on a specific page before they exit the page, with some sort of time counter in, for example, the index.php page? Thanks! MikeL ---- Manual Page -- http://www.php.net/manual/en/reserved.variables.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+59250 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+59250&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+59250&report=yes Search -- http://master.php.net/manage/user-notes.php