Created some javascript and jquery for calendar.php, also added some spacing in the css file so its more readable.

At the moment, the individual days, upon being clicked, get the day,
year, and month from the calendar, as well as opening a window.
However, I am still trying to figure out how to get it to where it will
hold onto the left most digit, if it's a 0, within the value of the day
before I try to forward the information to absent.php