what is window object? window features object functions

1. Window object
A window object is a top level object for each
document, location and history object
Syntax:
windowVar = window.open
(“URL”, “window name”, ”window features”)

2. Window features
Option Values Description
1. Height Integer Used to set the height of the new window
2. Width Integer Used to set the width of the new window
3. Location Yes/no or 1/0 Used to display/ hide the location bar in the new
window
4. Resizable Yes/no or 1/0 If resizable is set to yes, window resizing can be
done by users. By default window resizing is disabled
5. Menu bar Yes/no or 1/0 Used to display/hide the menu bar
6. Scrollbars Yes/no or 1/0 Used to display/hide scroll bars
7. Status Yes/no or 1/0 Used to display/hide status bar
8. Toolbar Yes/no or 1/0 Used to display/hide the tool bar

3. Window object property
Property Description
closed Returns a Boolean value indicating whether a window has been
closed or not
status Sets or returns the text in the status bar of a window
defaultStatus Sets or returns the default text in the status bar of a window
document Returns the Document object for the window
frames Returns all frame elements in the current window
history Returns the History object for the window
length Returns the number of all frame elements in the current window
location Returns the Location object for the window
name Sets or returns the name of a window
parent Returns the parent window of the current window

4. Window object functions
Method Description
alert() Displays an alert box with a message and an OK button
confirm() Displays a dialog box with a message and an OK and a
Cancel button
prompt() Displays a dialog box that prompts the visitor for input
open() Opens a new browser window
close() Closes the current window
scroll(x ,y) This method is used to move a window at a new
position
blur() Removes focus from the current window
focus() Sets focus to the current window

5. The form object
• The form takes a number of attributes:
– Name: the name of the form
– Method: the method by which data is sent to
server (get and post)
– Action: the URL of script to which data entered by
the user will be sent.
– onsubmit: the form is submitted to the server.
– onclick: the event is triggered when the user clicks
on that element.
– onreset: resets the form

6. The browser object
Property Description
appCodeName Returns the code name of the browser
appName Returns the name of the browser
appVersion Returns the version information of the browser
language Returns the language of the browser
platform Returns for which platform the browser is compiled

7. History object
Property Description
next Represents next page URL in the history object list, if any.
Previous Represents previous page URL in the history object list, if any
Current Represents current page URL in the history object list
Length Property length returns the number of objects in the history list

8. Date object
Method Description
date() Returns the current date and time
getDate() Returns the day of the month (from 1-31)
getDay() Returns the day of the week (from 0-6)
getMonth() Returns the month (from 0-11)
getHours() Returns the hour (from 0-23)
parse() Parses a date string and returns the number of
milliseconds since January 1, 1970
setDate() Sets the day of the month of a date object
setMonth() Sets the month of a date object
setHours() Sets the hour of a date object
toString() Converts a Date object to a string