how can i create a html5 calendar as the link belowe
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I am wondering: how can I create a html5 calendar as the link: http://html5advent.com/        ?

I need a calendar in which, when I click on a date or a day in the calendar it opens a new page with the event, for example, register some kind of job. If somebody knows some good examples or if I can downloads some codes?
OBS!  I use java for the backend part and need a calendar as I mentioned. 

Tanks