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# Class YAHOO.widget.Calendar_Core

Package: | YAHOO.widget
Class: | Calendar_Core
Extends: | Calendar
Defined In: | calendar.js

## Public Properties

Property | Defined By
--- | ---
| CSS_CALENDAR : Object | Calendar
| CSS_CELL : Object | Calendar
| CSS_CELL_BOTTOM : Object | Calendar
| CSS_CELL_HIGHLIGHT1 : Object | Calendar
| CSS_CELL_HIGHLIGHT2 : Object | Calendar
| CSS_CELL_HIGHLIGHT3 : Object | Calendar
| CSS_CELL_HIGHLIGHT4 : Object | Calendar
| CSS_CELL_HOVER : Object | Calendar
| CSS_CELL_LEFT : Object | Calendar
| CSS_CELL_OOB : Object | Calendar
| CSS_CELL_OOM : Object | Calendar
| CSS_CELL_RESTRICTED : Object | Calendar
| CSS_CELL_RIGHT : Object | Calendar
| CSS_CELL_SELECTABLE : Object | Calendar
| CSS_CELL_SELECTED : Object | Calendar
| CSS_CELL_TODAY : Object | Calendar
| CSS_CELL_TOP : Object | Calendar
| CSS_CONTAINER : Object | Calendar
| CSS_FOOTER : Object | Calendar
| CSS_HEADER : Object | Calendar
| CSS_HEADER_TEXT : Object | Calendar
| CSS_NAV_LEFT : Object | Calendar
| CSS_NAV_RIGHT : Object | Calendar
| CSS_ROW_FOOTER : Object | Calendar
| CSS_ROW_HEADER : Object | Calendar
| CSS_SINGLE : Object | Calendar
| CSS_WEEKDAY_CELL : Object | Calendar
| CSS_WEEKDAY_ROW : Object | Calendar
| DATE<static> : String | Calendar
<static> Type constant used for renderers to represent an individual date (M/D/Y)
| DISPLAY_DAYS<static> : Number | Calendar
<static> Constant that represents the total number of date cells that are displayed in a given month
| Locale : Object | Calendar
The local object which contains the Calendar's locale settings
| MONTH<static> : String | Calendar
<static> Type constant used for renderers to represent a month across any year
| MONTH_DAY<static> : String | Calendar
<static> Type constant used for renderers to represent an individual date across any year (M/D)
| Options : Object | Calendar
The local object which contains the Calendar's options
| RANGE<static> : String | Calendar
<static> Type constant used for renderers to represent a range of individual dates (M/D/Y-M/D/Y)
| STOP_RENDER<static> : String | Calendar
<static> Constant used for halting the execution of the remainder of the render stack
| Style : Object | Calendar
Collection of Style constants for the Calendar
| WEEKDAY<static> : String | Calendar
<static> Type constant used for renderers to represent a weekday
| browser : String | Calendar
Returns a string representing the current browser.
| cellDates : Array[](Number[]) | Calendar
The collection of calendar cell dates that is parallel to the cells collection. The array contains dates field arrays...
| cells : HTMLTableCellElement[] | Calendar
The collection of calendar table cells
| cfg : YAHOO.util.Config | Calendar
The Config object used to hold the configuration variables for the Calendar
| domEventMap : Object | Calendar
A map of DOM event handlers to attach to cells associated with specific CSS class names
| https : String | Calendar
<static> The path to be used for images loaded for the Calendar
| id : String | Calendar
The id that uniquely identifies this calendar. This id should match the id of the placeholder element on the page.
| index : Number | Calendar
The index of this item in the parent group
| oDomContainer : HTMLElement | Calendar
The DOM element reference that points to this calendar's container element. The calendar will be inserted into this e...
| parent : CalendarGroup | Calendar
The parent CalendarGroup, only to be set explicitly by the parent group
| renderStack : Array[] | Calendar
The list of render functions, along with required parameters, used to render cells.
| today : Date | Calendar
A Date object representing today's date.

## Public Methods

Method | Defined By
--- | ---
| addMonthRenderer(`Number month`, `Function fnRender`) : void | Calendar
Adds a month to the render stack. The function reference passed to this method will be executed when a date cell matc...
| addMonths(`Number count`) : void | Calendar
Adds the designated number of months to the current calendar month, and sets the current calendar page date to the ne...
| addRenderer(`String sDates`, `Function fnRender`) : void | Calendar
Adds a renderer to the render stack. The function reference passed to this method will be executed when a date cell m...
| addWeekdayRenderer(`Number weekday`, `Function fnRender`) : void | Calendar
Adds a weekday to the render stack. The function reference passed to this method will be executed when a date cell ma...
| addYears(`Number count`) : void | Calendar
Adds the designated number of years to the current calendar, and sets the current calendar page date to the new month.
| applyListeners() : void | Calendar
Applies the Calendar's DOM listeners to applicable elements.
| buildDayLabel(`Date workingDate`) : String | Calendar
Builds the date digit that will be displayed in calendar cells
| buildMonthLabel() : String | Calendar
Builds the date label that will be displayed in the calendar header or footer, depending on configuration.
| buildWeekdays(`Array html`) : Array | Calendar
Renders the Calendar's weekday headers.
| clear() : void | Calendar
Clears the selected dates in the current calendar widget and sets the calendar to the current month and year.
| clearAllBodyCellStyles(`style The`) : void | Calendar
Removes all styles from all body cells in the current calendar table.
| clearElement(`HTMLTableCellElement The`) : void | Calendar
Clears the inner HTML, CSS class and style information from the specified cell.
| configClose() : void | Calendar
Default handler for the "close" property
| configIframe() : void | Calendar
Renders the built-in IFRAME shim for the IE6 and below
| configLocale() : void | Calendar
The default handler for all configuration locale properties
| configLocaleValues() : void | Calendar
The default handler for all configuration locale field length properties
| configMaxDate() : void | Calendar
The default handler for the "maxdate" property
| configMinDate() : void | Calendar
The default handler for the "mindate" property
| configOptions() : void | Calendar
The default handler for all configuration options properties
| configPageDate() : void | Calendar
The default handler for the "pagedate" property
| configSelected() : void | Calendar
The default handler for the "selected" property
| configTitle() : void | Calendar
Default handler for the "title" property
| deselect(`String/Date/Date[] date`) : Date[] | Calendar
Deselects a date or a collection of dates on the current calendar. This method, by default, does not call the render ...
| deselectAll() : Date[] | Calendar
Deselects all dates on the current calendar.
| deselectCell(`Number cellIndex`) : Date[] | Calendar
Deselects a date on the current calendar by referencing the index of the cell that should be deselected. This method ...
| doCellMouseOut(`DOMEvent e`, `Calendar cal`) : void | Calendar
The event that is executed when the user moves the mouse out of a cell
| doCellMouseOver(`DOMEvent e`, `Calendar cal`) : void | Calendar
The event that is executed when the user hovers over a cell
| doSelectCell(`DOMEvent e`, `Calendar cal`) : void | Calendar
The default event function that is attached to a date link within a calendar cell when the calendar is rendered.
| getDateByCellId(`String id`) : Date | Calendar
Retrieves the Date object for the specified Calendar cell
| getDateFieldsByCellId(`String id`) : Array | Calendar
Retrieves the Date object for the specified Calendar cell
| getSelectedDates() : Date[] | Calendar
Gets the list of currently selected dates from the calendar.
| hide() : void | Calendar
Hides the Calendar's outer container from view.
| init(`String id`, `String containerId`, `Object config`) : void | Calendar
Initializes the Calendar widget.
| initEvents() : void | Calendar
Initializes Calendar's built-in CustomEvents
| initStyles() : void | Calendar
Defines the style constants for the Calendar
| isDateOOM(`Date date`) : Boolean | Calendar
Determines whether a given date is OOM (out of month).
| nextMonth() : void | Calendar
Navigates to the next month page in the calendar widget.
| nextYear() : void | Calendar
Navigates to the next year in the currently selected month in the calendar widget.
| onBeforeDeselect() : void | Calendar
Deprecated. Event executed before a date is deselected in the calendar widget.
| onBeforeSelect() : void | Calendar
Deprecated. Event executed before a date is selected in the calendar widget.
| onChangePage() : void | Calendar
Deprecated. Event executed when the user navigates to a different calendar page.
| onDeselect(`Array selected`) : void | Calendar
Deprecated. Event executed when a date is deselected in the calendar widget.
| onRender() : void | Calendar
Deprecated. Event executed when the calendar widget is rendered.
| onSelect(`Array selected`) : void | Calendar
Deprecated. Event executed when a date is selected in the calendar widget.
| previousMonth() : void | Calendar
Navigates to the previous month page in the calendar widget.
| previousYear() : void | Calendar
Navigates to the previous year in the currently selected month in the calendar widget.
| render() : void | Calendar
Deprecated. Event executed when the calendar widget is completely cleared to the current month with no selections.
| renderBody(`Date workingDate`, `Array html`) : Array | Calendar
Renders the calendar body.
| renderBodyCellRestricted(`Date workingDate`, `HTMLTableCellElement cell`) : String | Calendar
Renders the current calendar cell as a non-selectable "black-out" date using the default restricted style.
| renderCellDefault(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Renders a single standard calendar cell in the calendar widget table. All logic for determining how a standard defaul...
| renderCellNotThisMonth(`Date workingDate`, `HTMLTableCellElement cell`) : String | Calendar
Applies the default style used for rendering dates that are not a part of the current month (preceding or trailing th...
| renderCellStyleHighlight1(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Renders a single standard calendar cell using the CSS hightlight1 style
| renderCellStyleHighlight2(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Renders a single standard calendar cell using the CSS hightlight2 style
| renderCellStyleHighlight3(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Renders a single standard calendar cell using the CSS hightlight3 style
| renderCellStyleHighlight4(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Renders a single standard calendar cell using the CSS hightlight4 style
| renderCellStyleSelected(`Date workingDate`, `HTMLTableCellElement cell`) : String | Calendar
Applies the default style used for rendering selected dates to the current calendar cell
| renderCellStyleToday(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Applies the default style used for rendering today's date to the current calendar cell
| renderFooter(`Array html`) : Array | Calendar
Renders the calendar footer. In the default implementation, there is no footer.
| renderHeader(`Array html`) : Array | Calendar
Renders the calendar header.
| renderOutOfBoundsDate(`Date workingDate`, `HTMLTableCellElement cell`) : String | Calendar
Renders a cell that falls before the minimum date or after the maximum date. widget class.
| renderRowFooter(`Number weekNum`, `Array cell`) : void | Calendar
Renders the row footer for a week.
| renderRowHeader(`Number weekNum`, `Array cell`) : void | Calendar
Renders the row header for a week.
| reset() : void | Calendar
Resets the calendar widget to the originally selected month and year, and sets the calendar to the initial selection(s).
| resetRenderers() : void | Calendar
Resets the render stack of the current calendar to its original pre-render value.
| select(`String/Date/Date[] date`) : Date[] | Calendar
Selects a date or a collection of dates on the current calendar. This method, by default, does not call the render me...
| selectCell(`Number cellIndex`) : Date[] | Calendar
Selects a date on the current calendar by referencing the index of the cell that should be selected. This method is u...
| setMonth(`Number month`) : void | Calendar
Sets the calendar's month explicitly
| setYear(`Number year`) : void | Calendar
Sets the calendar's year explicitly.
| show() : void | Calendar
Shows the Calendar's outer container.
| styleCellDefault(`Date workingDate`, `HTMLTableCellElement cell`) : void | Calendar
Styles a selectable cell.
| subtractMonths(`Number count`) : void | Calendar
Subtracts the designated number of months from the current calendar month, and sets the current calendar page date to...
| subtractYears(`Number count`) : void | Calendar
Subtcats the designated number of years from the current calendar, and sets the current calendar page date to the new...
| toString() : String | Calendar
Returns a string representation of the object.
| validate() : Should | Calendar
Validates the calendar widget. This method has no default implementation and must be extended by subclassing the widget.

## Public Events

Event | Defined By
--- | ---
| beforeDeselectEvent : () | Calendar
Fired before a selection is made
| beforeRenderEvent : () | Calendar
Fired before the Calendar is rendered
| beforeSelectEvent : () | Calendar
Fired before a selection is made
| changePageEvent : () | Calendar
Fired when the Calendar page is changed
| clearEvent : () | Calendar
Fired when the Calendar is cleared
| deselectEvent : (`Array Array`) | Calendar
Fired when a selection is made
| renderEvent : () | Calendar
Fired when the Calendar is rendered
| resetEvent : () | Calendar
Fired when the Calendar is reset
| selectEvent : (`Array Array`) | Calendar
Fired when a selection is made

## Property Details

### CSS_CALENDAR

`public Object CSS_CALENDAR`
This property is defined by Calendar.

### CSS_CELL

`public Object CSS_CELL`
This property is defined by Calendar.

### CSS_CELL_BOTTOM

`public Object CSS_CELL_BOTTOM`
This property is defined by Calendar.

### CSS_CELL_HIGHLIGHT1

`public Object CSS_CELL_HIGHLIGHT1`
This property is defined by Calendar.

### CSS_CELL_HIGHLIGHT2

`public Object CSS_CELL_HIGHLIGHT2`
This property is defined by Calendar.

### CSS_CELL_HIGHLIGHT3

`public Object CSS_CELL_HIGHLIGHT3`
This property is defined by Calendar.

### CSS_CELL_HIGHLIGHT4

`public Object CSS_CELL_HIGHLIGHT4`
This property is defined by Calendar.

### CSS_CELL_HOVER

`public Object CSS_CELL_HOVER`
This property is defined by Calendar.

### CSS_CELL_LEFT

`public Object CSS_CELL_LEFT`
This property is defined by Calendar.

### CSS_CELL_OOB

`public Object CSS_CELL_OOB`
This property is defined by Calendar.

### CSS_CELL_OOM

`public Object CSS_CELL_OOM`
This property is defined by Calendar.

### CSS_CELL_RESTRICTED

`public Object CSS_CELL_RESTRICTED`
This property is defined by Calendar.

### CSS_CELL_RIGHT

`public Object CSS_CELL_RIGHT`
This property is defined by Calendar.

### CSS_CELL_SELECTABLE

`public Object CSS_CELL_SELECTABLE`
This property is defined by Calendar.

### CSS_CELL_SELECTED

`public Object CSS_CELL_SELECTED`
This property is defined by Calendar.

### CSS_CELL_TODAY

`public Object CSS_CELL_TODAY`
This property is defined by Calendar.

### CSS_CELL_TOP

`public Object CSS_CELL_TOP`
This property is defined by Calendar.

### CSS_CONTAINER

`public Object CSS_CONTAINER`
This property is defined by Calendar.

### CSS_FOOTER

`public Object CSS_FOOTER`
This property is defined by Calendar.

### CSS_HEADER

`public Object CSS_HEADER`
This property is defined by Calendar.

### CSS_HEADER_TEXT

`public Object CSS_HEADER_TEXT`
This property is defined by Calendar.

### CSS_NAV_LEFT

`public Object CSS_NAV_LEFT`
This property is defined by Calendar.

### CSS_NAV_RIGHT

`public Object CSS_NAV_RIGHT`
This property is defined by Calendar.

### CSS_ROW_FOOTER

`public Object CSS_ROW_FOOTER`
This property is defined by Calendar.

### CSS_ROW_HEADER

`public Object CSS_ROW_HEADER`
This property is defined by Calendar.

### CSS_SINGLE

`public Object CSS_SINGLE`
This property is defined by Calendar.

### CSS_WEEKDAY_CELL

`public Object CSS_WEEKDAY_CELL`
This property is defined by Calendar.

### CSS_WEEKDAY_ROW

`public Object CSS_WEEKDAY_ROW`
This property is defined by Calendar.

### DATE<static>

`public String DATE<static>`
<static> Type constant used for renderers to represent an individual date (M/D/Y)
This property is defined by Calendar.

### DISPLAY_DAYS<static>

`public Number DISPLAY_DAYS<static>`
<static> Constant that represents the total number of date cells that are displayed in a given month
This property is defined by Calendar.

### Locale

`public Object Locale`
The local object which contains the Calendar's locale settings
This property is defined by Calendar.

### MONTH<static>

`public String MONTH<static>`
<static> Type constant used for renderers to represent a month across any year
This property is defined by Calendar.

### MONTH_DAY<static>

`public String MONTH_DAY<static>`
<static> Type constant used for renderers to represent an individual date across any year (M/D)
This property is defined by Calendar.

### Options

`public Object Options`
The local object which contains the Calendar's options
This property is defined by Calendar.

### RANGE<static>

`public String RANGE<static>`
<static> Type constant used for renderers to represent a range of individual dates (M/D/Y-M/D/Y)
This property is defined by Calendar.

### STOP_RENDER<static>

`public String STOP_RENDER<static>`
<static> Constant used for halting the execution of the remainder of the render stack
This property is defined by Calendar.

### Style

`public Object Style`
Collection of Style constants for the Calendar
This property is defined by Calendar.

### WEEKDAY<static>

`public String WEEKDAY<static>`
<static> Type constant used for renderers to represent a weekday
This property is defined by Calendar.

### browser

`public String browser`
Returns a string representing the current browser.
This property is defined by Calendar.

### cellDates

`public Array[](Number[]) cellDates`
The collection of calendar cell dates that is parallel to the cells collection. The array contains dates field arrays in the format of [YYYY, M, D].
This property is defined by Calendar.

### cells

`public HTMLTableCellElement[] cells`
The collection of calendar table cells
This property is defined by Calendar.

### cfg

`public YAHOO.util.Config cfg`
The Config object used to hold the configuration variables for the Calendar
This property is defined by Calendar.

### domEventMap

`public Object domEventMap`
A map of DOM event handlers to attach to cells associated with specific CSS class names
This property is defined by Calendar.

### https

`public String https`
<static> The path to be used for images loaded for the Calendar
This property is defined by Calendar.

### id

`public String id`
The id that uniquely identifies this calendar. This id should match the id of the placeholder element on the page.
This property is defined by Calendar.

### index

`public Number index`
The index of this item in the parent group
This property is defined by Calendar.

### oDomContainer

`public HTMLElement oDomContainer`
The DOM element reference that points to this calendar's container element. The calendar will be inserted into this element when the shell is rendered.
This property is defined by Calendar.

### parent

`public CalendarGroup parent`
The parent CalendarGroup, only to be set explicitly by the parent group
This property is defined by Calendar.

### renderStack

`public Array[] renderStack`
The list of render functions, along with required parameters, used to render cells.
This property is defined by Calendar.

### today

`public Date today`
A Date object representing today's date.
This property is defined by Calendar.

## Method Details

### addMonthRenderer

`public function addMonthRenderer(`Number month`, `Function fnRender`)`
Adds a month to the render stack. The function reference passed to this method will be executed when a date cell matches the month passed to this method.
Parameters:

- `month` : Number
  The month (1-12) to associate with this renderer
- `fnRender` : Function
  The function executed to render cells that match the render rules for this renderer.

Returns:

- `void`

This method is defined by Calendar.

### addMonths

`public function addMonths(`Number count`)`
Adds the designated number of months to the current calendar month, and sets the current calendar page date to the new month.
Parameters:

- `count` : Number
  The number of months to add to the current calendar

Returns:

- `void`

This method is defined by Calendar.

### addRenderer

`public function addRenderer(`String sDates`, `Function fnRender`)`
Adds a renderer to the render stack. The function reference passed to this method will be executed when a date cell matches the conditions specified in the date string for this renderer.
Parameters:

- `sDates` : String
  A date string to associate with the specified renderer. Valid formats include date (12/24/2005), month/day (12/24), and range (12/1/2004-1/1/2005)
- `fnRender` : Function
  The function executed to render cells that match the render rules for this renderer.

Returns:

- `void`

This method is defined by Calendar.

### addWeekdayRenderer

`public function addWeekdayRenderer(`Number weekday`, `Function fnRender`)`
Adds a weekday to the render stack. The function reference passed to this method will be executed when a date cell matches the weekday passed to this method.
Parameters:

- `weekday` : Number
  The weekday (0-6) to associate with this renderer
- `fnRender` : Function
  The function executed to render cells that match the render rules for this renderer.

Returns:

- `void`

This method is defined by Calendar.

### addYears

`public function addYears(`Number count`)`
Adds the designated number of years to the current calendar, and sets the current calendar page date to the new month.
Parameters:

- `count` : Number
  The number of years to add to the current calendar

Returns:

- `void`

This method is defined by Calendar.

### applyListeners

`public function applyListeners()`
Applies the Calendar's DOM listeners to applicable elements.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### buildDayLabel

`public function buildDayLabel(`Date workingDate`)`
Builds the date digit that will be displayed in calendar cells
Parameters:

- `workingDate` : Date
  The current working date

Returns:

- `String`
  The formatted day label

This method is defined by Calendar.

### buildMonthLabel

`public function buildMonthLabel()`
Builds the date label that will be displayed in the calendar header or footer, depending on configuration.
Parameters:

- None.

Returns:

- `String`
  The formatted calendar month label

This method is defined by Calendar.

### buildWeekdays

`public function buildWeekdays(`Array html`)`
Renders the Calendar's weekday headers.
Parameters:

- `html` : Array
  The current working HTML array

Returns:

- `Array`
  The current working HTML array

This method is defined by Calendar.

### clear

`public function clear()`
Clears the selected dates in the current calendar widget and sets the calendar to the current month and year.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### clearAllBodyCellStyles

`public function clearAllBodyCellStyles(`style The`)`
Removes all styles from all body cells in the current calendar table.
Parameters:

- `The` : style
  CSS class name to remove from all calendar body cells

Returns:

- `void`

This method is defined by Calendar.

### clearElement

`public function clearElement(`HTMLTableCellElement The`)`
Clears the inner HTML, CSS class and style information from the specified cell.
Parameters:

- `The` : HTMLTableCellElement
  cell to clear

Returns:

- `void`

This method is defined by Calendar.

### configClose

`public function configClose()`
Default handler for the "close" property
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configIframe

`public function configIframe()`
Renders the built-in IFRAME shim for the IE6 and below
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configLocale

`public function configLocale()`
The default handler for all configuration locale properties
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configLocaleValues

`public function configLocaleValues()`
The default handler for all configuration locale field length properties
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configMaxDate

`public function configMaxDate()`
The default handler for the "maxdate" property
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configMinDate

`public function configMinDate()`
The default handler for the "mindate" property
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configOptions

`public function configOptions()`
The default handler for all configuration options properties
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configPageDate

`public function configPageDate()`
The default handler for the "pagedate" property
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configSelected

`public function configSelected()`
The default handler for the "selected" property
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### configTitle

`public function configTitle()`
Default handler for the "title" property
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### deselect

`public function deselect(`String/Date/Date[] date`)`
Deselects a date or a collection of dates on the current calendar. This method, by default, does not call the render method explicitly. Once deselection has completed, render must be called for the changes to be reflected visually.
Parameters:

- `date` : String/Date/Date[]
  The date string of dates to deselect in the current calendar. Valid formats are individual date(s) (12/24/2005,12/26/2005) or date range(s) (12/24/2005-1/1/2006). Multiple comma-delimited dates can also be passed to this method (12/24/2005,12/11/2005-12/13/2005). This method can also take a JavaScript Date object or an array of Date objects.

Returns:

- `Date[]`
  Array of JavaScript Date objects representing all individual dates that are currently selected.

This method is defined by Calendar.

### deselectAll

`public function deselectAll()`
Deselects all dates on the current calendar.
Parameters:

- None.

Returns:

- `Date[]`
  Array of JavaScript Date objects representing all individual dates that are currently selected. Assuming that this function executes properly, the return value should be an empty array. However, the empty array is returned for the sake of being able to check the selection status of the calendar.

This method is defined by Calendar.

### deselectCell

`public function deselectCell(`Number cellIndex`)`
Deselects a date on the current calendar by referencing the index of the cell that should be deselected. This method is used to easily deselect a single cell (usually with a mouse click) without having to do a full render. The selected style is removed from the cell directly.
Parameters:

- `cellIndex` : Number
  The index of the cell to deselect in the current calendar.

Returns:

- `Date[]`
  Array of JavaScript Date objects representing all individual dates that are currently selected.

This method is defined by Calendar.

### doCellMouseOut

`public function doCellMouseOut(`DOMEvent e`, `Calendar cal`)`
The event that is executed when the user moves the mouse out of a cell
Parameters:

- `e` : DOMEvent
  The event
- `cal` : Calendar
  A reference to the calendar passed by the Event utility

Returns:

- `void`

This method is defined by Calendar.

### doCellMouseOver

`public function doCellMouseOver(`DOMEvent e`, `Calendar cal`)`
The event that is executed when the user hovers over a cell
Parameters:

- `e` : DOMEvent
  The event
- `cal` : Calendar
  A reference to the calendar passed by the Event utility

Returns:

- `void`

This method is defined by Calendar.

### doSelectCell

`public function doSelectCell(`DOMEvent e`, `Calendar cal`)`
The default event function that is attached to a date link within a calendar cell when the calendar is rendered.
Parameters:

- `e` : DOMEvent
  The event
- `cal` : Calendar
  A reference to the calendar passed by the Event utility

Returns:

- `void`

This method is defined by Calendar.

### getDateByCellId

`public function getDateByCellId(`String id`)`
Retrieves the Date object for the specified Calendar cell
Parameters:

- `id` : String
  The id of the cell

Returns:

- `Date`
  The Date object for the specified Calendar cell

This method is defined by Calendar.

### getDateFieldsByCellId

`public function getDateFieldsByCellId(`String id`)`
Retrieves the Date object for the specified Calendar cell
Parameters:

- `id` : String
  The id of the cell

Returns:

- `Array`
  The array of Date fields for the specified Calendar cell

This method is defined by Calendar.

### getSelectedDates

`public function getSelectedDates()`
Gets the list of currently selected dates from the calendar.
Parameters:

- None.

Returns:

- `Date[]`
  An array of currently selected JavaScript Date objects.

This method is defined by Calendar.

### hide

`public function hide()`
Hides the Calendar's outer container from view.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### init

`public function init(`String id`, `String containerId`, `Object config`)`
Initializes the Calendar widget.
Parameters:

- `id` : String
  The id of the table element that will represent the calendar widget
- `containerId` : String
  The id of the container div element that will wrap the calendar table
- `config` : Object
  The configuration object containing the Calendar's arguments

Returns:

- `void`

This method is defined by Calendar.

### initEvents

`public function initEvents()`
Initializes Calendar's built-in CustomEvents
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### initStyles

`public function initStyles()`
Defines the style constants for the Calendar
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### isDateOOM

`public function isDateOOM(`Date date`)`
Determines whether a given date is OOM (out of month).
Parameters:

- `date` : Date
  The JavaScript Date object for which to check the OOM status

Returns:

- `Boolean`
  true if the date is OOM

This method is defined by Calendar.

### nextMonth

`public function nextMonth()`
Navigates to the next month page in the calendar widget.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### nextYear

`public function nextYear()`
Navigates to the next year in the currently selected month in the calendar widget.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### onBeforeDeselect

`public function onBeforeDeselect()`
Deprecated. Event executed before a date is deselected in the calendar widget.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### onBeforeSelect

`public function onBeforeSelect()`
Deprecated. Event executed before a date is selected in the calendar widget.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### onChangePage

`public function onChangePage()`
Deprecated. Event executed when the user navigates to a different calendar page.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### onDeselect

`public function onDeselect(`Array selected`)`
Deprecated. Event executed when a date is deselected in the calendar widget.
Parameters:

- `selected` : Array
  An array of date field arrays representing which date or dates were deselected. Example: [ [2006,8,6],[2006,8,7],[2006,8,8] ]

Returns:

- `void`

This method is defined by Calendar.

### onRender

`public function onRender()`
Deprecated. Event executed when the calendar widget is rendered.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### onSelect

`public function onSelect(`Array selected`)`
Deprecated. Event executed when a date is selected in the calendar widget.
Parameters:

- `selected` : Array
  An array of date field arrays representing which date or dates were selected. Example: [ [2006,8,6],[2006,8,7],[2006,8,8] ]

Returns:

- `void`

This method is defined by Calendar.

### previousMonth

`public function previousMonth()`
Navigates to the previous month page in the calendar widget.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### previousYear

`public function previousYear()`
Navigates to the previous year in the currently selected month in the calendar widget.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### render

`public function render()`
Deprecated. Event executed when the calendar widget is completely cleared to the current month with no selections.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### renderBody

`public function renderBody(`Date workingDate`, `Array html`)`
Renders the calendar body.
Parameters:

- `workingDate` : Date
  The current working Date being used for the render process
- `html` : Array
  The current working HTML array

Returns:

- `Array`
  The current working HTML array

This method is defined by Calendar.

### renderBodyCellRestricted

`public function renderBodyCellRestricted(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders the current calendar cell as a non-selectable "black-out" date using the default restricted style.
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `String`
  YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering should not be terminated

This method is defined by Calendar.

### renderCellDefault

`public function renderCellDefault(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders a single standard calendar cell in the calendar widget table. All logic for determining how a standard default cell will be rendered is encapsulated in this method, and must be accounted for when extending the widget class.
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### renderCellNotThisMonth

`public function renderCellNotThisMonth(`Date workingDate`, `HTMLTableCellElement cell`)`
Applies the default style used for rendering dates that are not a part of the current month (preceding or trailing the cells for the current month)
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `String`
  YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering should not be terminated

This method is defined by Calendar.

### renderCellStyleHighlight1

`public function renderCellStyleHighlight1(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders a single standard calendar cell using the CSS hightlight1 style
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### renderCellStyleHighlight2

`public function renderCellStyleHighlight2(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders a single standard calendar cell using the CSS hightlight2 style
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### renderCellStyleHighlight3

`public function renderCellStyleHighlight3(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders a single standard calendar cell using the CSS hightlight3 style
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### renderCellStyleHighlight4

`public function renderCellStyleHighlight4(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders a single standard calendar cell using the CSS hightlight4 style
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### renderCellStyleSelected

`public function renderCellStyleSelected(`Date workingDate`, `HTMLTableCellElement cell`)`
Applies the default style used for rendering selected dates to the current calendar cell
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `String`
  YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering should not be terminated

This method is defined by Calendar.

### renderCellStyleToday

`public function renderCellStyleToday(`Date workingDate`, `HTMLTableCellElement cell`)`
Applies the default style used for rendering today's date to the current calendar cell
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### renderFooter

`public function renderFooter(`Array html`)`
Renders the calendar footer. In the default implementation, there is no footer.
Parameters:

- `html` : Array
  The current working HTML array

Returns:

- `Array`
  The current working HTML array

This method is defined by Calendar.

### renderHeader

`public function renderHeader(`Array html`)`
Renders the calendar header.
Parameters:

- `html` : Array
  The current working HTML array

Returns:

- `Array`
  The current working HTML array

This method is defined by Calendar.

### renderOutOfBoundsDate

`public function renderOutOfBoundsDate(`Date workingDate`, `HTMLTableCellElement cell`)`
Renders a cell that falls before the minimum date or after the maximum date. widget class.
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `String`
  YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering should not be terminated

This method is defined by Calendar.

### renderRowFooter

`public function renderRowFooter(`Number weekNum`, `Array cell`)`
Renders the row footer for a week.
Parameters:

- `weekNum` : Number
  The week number of the current row
- `cell` : Array
  The current working HTML array

Returns:

- `void`

This method is defined by Calendar.

### renderRowHeader

`public function renderRowHeader(`Number weekNum`, `Array cell`)`
Renders the row header for a week.
Parameters:

- `weekNum` : Number
  The week number of the current row
- `cell` : Array
  The current working HTML array

Returns:

- `void`

This method is defined by Calendar.

### reset

`public function reset()`
Resets the calendar widget to the originally selected month and year, and sets the calendar to the initial selection(s).
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### resetRenderers

`public function resetRenderers()`
Resets the render stack of the current calendar to its original pre-render value.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### select

`public function select(`String/Date/Date[] date`)`
Selects a date or a collection of dates on the current calendar. This method, by default, does not call the render method explicitly. Once selection has completed, render must be called for the changes to be reflected visually.
Parameters:

- `date` : String/Date/Date[]
  The date string of dates to select in the current calendar. Valid formats are individual date(s) (12/24/2005,12/26/2005) or date range(s) (12/24/2005-1/1/2006). Multiple comma-delimited dates can also be passed to this method (12/24/2005,12/11/2005-12/13/2005). This method can also take a JavaScript Date object or an array of Date objects.

Returns:

- `Date[]`
  Array of JavaScript Date objects representing all individual dates that are currently selected.

This method is defined by Calendar.

### selectCell

`public function selectCell(`Number cellIndex`)`
Selects a date on the current calendar by referencing the index of the cell that should be selected. This method is used to easily select a single cell (usually with a mouse click) without having to do a full render. The selected style is applied to the cell directly.
Parameters:

- `cellIndex` : Number
  The index of the cell to select in the current calendar.

Returns:

- `Date[]`
  Array of JavaScript Date objects representing all individual dates that are currently selected.

This method is defined by Calendar.

### setMonth

`public function setMonth(`Number month`)`
Sets the calendar's month explicitly
Parameters:

- `month` : Number
  The numeric month, from 0 (January) to 11 (December)

Returns:

- `void`

This method is defined by Calendar.

### setYear

`public function setYear(`Number year`)`
Sets the calendar's year explicitly.
Parameters:

- `year` : Number
  The numeric 4-digit year

Returns:

- `void`

This method is defined by Calendar.

### show

`public function show()`
Shows the Calendar's outer container.
Parameters:

- None.

Returns:

- `void`

This method is defined by Calendar.

### styleCellDefault

`public function styleCellDefault(`Date workingDate`, `HTMLTableCellElement cell`)`
Styles a selectable cell.
Parameters:

- `workingDate` : Date
  The current working Date object being used to generate the calendar
- `cell` : HTMLTableCellElement
  The current working cell in the calendar

Returns:

- `void`

This method is defined by Calendar.

### subtractMonths

`public function subtractMonths(`Number count`)`
Subtracts the designated number of months from the current calendar month, and sets the current calendar page date to the new month.
Parameters:

- `count` : Number
  The number of months to subtract from the current calendar

Returns:

- `void`

This method is defined by Calendar.

### subtractYears

`public function subtractYears(`Number count`)`
Subtcats the designated number of years from the current calendar, and sets the current calendar page date to the new month.
Parameters:

- `count` : Number
  The number of years to subtract from the current calendar

Returns:

- `void`

This method is defined by Calendar.

### toString

`public function toString()`
Returns a string representation of the object.
Parameters:

- None.

Returns:

- `String`
  A string representation of the Calendar object.

This method is defined by Calendar.

### validate

`public function validate()`
Validates the calendar widget. This method has no default implementation and must be extended by subclassing the widget.
Parameters:

- None.

Returns:

- `Should`
  return true if the widget validates, and false if it doesn't.

This method is defined by Calendar.

## Event Details

### beforeDeselectEvent

`public event beforeDeselectEvent`
Fired before a selection is made
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### beforeRenderEvent

`public event beforeRenderEvent`
Fired before the Calendar is rendered
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### beforeSelectEvent

`public event beforeSelectEvent`
Fired before a selection is made
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### changePageEvent

`public event changePageEvent`
Fired when the Calendar page is changed
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### clearEvent

`public event clearEvent`
Fired when the Calendar is cleared
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### deselectEvent

`public event deselectEvent`
Fired when a selection is made
Subscribers will be called with the following parameters:

- `Array` : Array
  of Date field arrays in the format [YYYY, MM, DD].

This event is defined by Calendar.

### renderEvent

`public event renderEvent`
Fired when the Calendar is rendered
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### resetEvent

`public event resetEvent`
Fired when the Calendar is reset
Subscribers will be called with the following parameters:

- None.

This event is defined by Calendar.

### selectEvent

`public event selectEvent`
Fired when a selection is made
Subscribers will be called with the following parameters:

- `Array` : Array
  of Date field arrays in the format [YYYY, MM, DD].

This event is defined by Calendar.

Copyright © 2006 Jack Slocum. All rights reserved.