jquery-src/jquery.calendars.picker.js
function(elem, date) {
			var inst = this._getInst(elem);
			if ($.isEmptyObject(inst)) {
				return false;
			}
			date = inst.options.calendar.determineDate(date,
				inst.selectedDates[0] || inst.options.calendar.today(), null,
				inst.options.dateFormat, inst.getConfig());
			return this._isSelectable(elem, date, inst.options.onDate,
				inst.get('minDate'), inst.get('maxDate'));
		}
function(elem, date) {
			var inst = this._getInst(elem);
			if ($.isEmptyObject(inst)) {
				return false;
			}
			date = inst.options.calendar.determineDate(date,
				inst.selectedDates[0] || inst.options.calendar.today(), null,
				inst.options.dateFormat, inst.getConfig());
			return this._isSelectable(elem, date, inst.options.onDate,
				inst.get('minDate'), inst.get('maxDate'));
		}
function ( elem , date ) { var inst = this . _getInst ( elem ) ; if ( $ . isEmptyObject ( inst ) ) { return false ; } date = inst . options . calendar . determineDate ( date , inst . selectedDates [ 0 ] || inst . options . calendar . today ( ) , null , inst . options . dateFormat , inst . getConfig ( ) ) ; return this . _isSelectable ( elem , date , inst . options . onDate , inst . get ( 'minDate' ) , inst . get ( 'maxDate' ) ) ; }
Determine whether a date is selectable for this datepicker.
@memberof CalendarsPicker
@private
@param elem {Element} The control to check.
@param date {CDate|string|number} The date to check.
@return {boolean} <code>true</code> if selectable, <code>false</code> if not.
@example var selectable = $(selector).datepick('isSelectable', date)
Determine whether a date is selectable for this datepicker .