HTML DOM Window Object

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# HTML DOM Window Object

## Window Object

The Window object is the top level object in the JavaScript hierarchy.

The Window object represents a browser window.

A Window object is created automatically with every instance of a <body> or <frameset> tag.

IE: Internet Explorer, F: Firefox, O: Opera.

### Window Object Collections

Collection | Description | IE | F | O
--- | --- | --- | --- | ---
frames[] | Returns all named frames in the window | 4 | 1 | 9

### Window Object Properties

Property | Description | IE | F | O
--- | --- | --- | --- | ---
closed | Returns whether or not a window has been closed | 4 | 1 | 9
defaultStatus | Sets or returns the default text in the statusbar of the window | 4 | No | 9
document | See Document object | 4 | 1 | 9
history | See History object | 4 | 1 | 9
length | Sets or returns the number of frames in the window | 4 | 1 | 9
location | See Location object | 4 | 1 | 9
name | Sets or returns the name of the window | 4 | 1 | 9
opener | Returns a reference to the window that created the window | 4 | 1 | 9
outerHeight | Sets or returns the outer height of a window | No | 1 | No
outerWidth | Sets or returns the outer width of a window | No | 1 | No
pageXOffset | Sets or returns the X position of the current page in relation to the upper left corner of a window's display area | No | No | No
pageYOffset | Sets or returns the Y position of the current page in relation to the upper left corner of a window's display area | No | No | No
parent | Returns the parent window | 4 | 1 | 9
personalbar | Sets whether or not the browser's personal bar (or directories bar) should be visible |  |  |
scrollbars | Sets whether or not the scrollbars should be visible |  |  |
self | Returns a reference to the current window | 4 | 1 | 9
status | Sets the text in the statusbar of a window | 4 | No | 9
statusbar | Sets whether or not the browser's statusbar should be visible |  |  |
toolbar | Sets whether or not the browser's tool bar is visible or not (can only be set before the window is opened and you must have UniversalBrowserWrite privilege) |  |  |
top | Returns the topmost ancestor window | 4 | 1 | 9

### Window Object Methods

Method | Description | IE | F | O
--- | --- | --- | --- | ---
alert() | Displays an alert box with a message and an OK button | 4 | 1 | 9
blur() | Removes focus from the current window | 4 | 1 | 9
clearInterval() | Cancels a timeout set with setInterval() | 4 | 1 | 9
clearTimeout() | Cancels a timeout set with setTimeout() | 4 | 1 | 9
close() | Closes the current window | 4 | 1 | 9
confirm() | Displays a dialog box with a message and an OK and a Cancel button | 4 | 1 | 9
createPopup() | Creates a pop-up window | 4 | No | No
focus() | Sets focus to the current window | 4 | 1 | 9
moveBy() | Moves a window relative to its current position | 4 | 1 | 9
moveTo() | Moves a window to the specified position | 4 | 1 | 9
open() | Opens a new browser window | 4 | 1 | 9
print() | Prints the contents of the current window | 5 | 1 | 9
prompt() | Displays a dialog box that prompts the user for input | 4 | 1 | 9
resizeBy() | Resizes a window by the specified pixels | 4 | 1 | 9
resizeTo() | Resizes a window to the specified width and height | 4 | 1.5 | 9
scrollBy() | Scrolls the content by the specified number of pixels | 4 | 1 | 9
scrollTo() | Scrolls the content to the specified coordinates | 4 | 1 | 9
setInterval() | Evaluates an expression at specified intervals | 4 | 1 | 9
setTimeout() | Evaluates an expression after a specified number of milliseconds | 4 | 1 | 9

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