note 46520 added to ref.calendar

I am trying to use this example. I launch the page and it displays the current date, but there are two errors on the page: Notice: Undefined variable: md Notice: Undefined variable: md2 Here is the lines it is referencing: if($md == ""){$md = "0";} if($md2 == ""){$md2 = "1";} Any ideas? Thanks, Jim ---- Manual Page -- http://www.php.net/manual/en/ref.calendar.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+46520 Delete -- http://master.php.net/manage/user-notes.php?action=delete+46520&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+46520&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+46520&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+46520&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+46520&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+46520&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+46520&report=yes Search -- http://master.php.net/manage/user-notes.php