Google Calendarとも連携できる jQueryのカレンダープラグイン

FullCalendar - Full-sized Calendar jQuery Plugin

FullCalendar is a jQuery plugin that provides a full-sized, drag & drop calendar like the one below. It uses AJAX to fetch events on-the-fly for each month and is easily configured to use your own feed format (an extension is provided for Google Calendar).

画面いっぱいに表示するカレンダー。formへの日付入力補助（Date Picker）とは違う。