code: function(picker, calendar, inst) {
  			var target = $(this);
  			var selectMonth = $('<div style="text-align: center;"><button type="button">Select</button></div>').
  				insertAfter(picker.find('.calendars-month-row:last,.ui-datepicker-row-break:last')).
  				children().click(function() {
  					var monthYear = picker.find('.calendars-month-year:first').val().split('/');
  					target.calendarsPicker('setDate', calendar.newDate(
  						parseInt(monthYear[1], 10), parseInt(monthYear[0], 10), calendar.minDay)).
  						calendarsPicker('hide');
  				});
  			picker.find('.calendars-month-row table,.ui-datepicker-row-break table').remove();
  		}
docs: Select a month only instead of a single day.
  Found in the <code>jquery.calendars.picker.ext.js</code> module.
  @memberof CalendarsPicker
  @param picker {jQuery} The completed datepicker division.
  @param calendar {BaseCalendar} The calendar implementation.
  @param inst {object} The current instance settings.
  @example onShow: $.calendarsPicker.monthOnly