JavaScript Windows Object Properties Part I

In this JavaScript tutorial, you will learn about Windows Object properties namely personalbar, statusbar, scrollbar, toolbar property of Window object, pageXOffset, pageYOffset, innerwidth, innerheight, outerwidth and outerheight.

personalbar Property of Window Object:

The personalbar property of a Window Object relates to the browser’s personal or directory bars. This is the region where the user has easy access to certain bookmarks. The personalbar property has the default property set as true, meaning visible, and can also be set to false, meaning hidden, as per the programmer’s requirement. The personalbar Property of a Window Object is used to show or hide the browser’s personal or directory bars as per the needs of the user.

NOTE: In order to set the value of the personalbar visible property, the programmer must have the UniversalBrowserWrite privilege.

General syntax of personalbar property of Window Object:

window.personalbar[.visible = false]

The default value is true.

Example for personalbar of the Window Object set as hidden.

self.personalbar.visible=false;

scrollbar Property of Window Object:

The scrollbar Property of a Window Object relates to the browser’s vertical and horizontal scrollbars. The scrollbars property can be set to visible or hidden. The default value is true, meaning visible, and this can be set to false, meaning hidden, as per the programmer’s requirement. Thus, the scrollbar Property of a Window Object is used to Set the scrollbar as visible or hidden, based on the user’s needs.

NOTE: To set the value of the scrollbar visible property, the programmer must have the UniversalBrowserWrite privilege.

General syntax of scrollbar property of Window Object:

window.scrollbars[.visible = false]

The default value is true.

For example the statement below sets the scrollbar of the window as hidden.

self.scrollbar.visible=false;

statusbar Property of Window Object:

The statusbar property of a Window Object relates to the browser’s statusbar. This is the region containing the security indicator, browser status, and so on. The statusbar property has the default property set as true, meaning visible and can also be set to false, meaning hidden, as per the programmer’s requirement. Thus, the statusbar Property of a Window Object is used to set the browser’s statusbar to visible or hidden, depending on the user’s needs.

NOTE: To set the value of the statusbar visible property, the programmer must have the UniversalBrowserWrite privilege.

General syntax of statusbar property of Window Object:

The general syntax for using this statusbar property of Window object is as follows:

window.statusbar[.visible = false]

The default value is true.

For example the statement below

window.statusbar.visible=false;

would set the statusbar of the window as hidden.

toolbar Property of Window Object:

The toolbar property of Window Object relates to the browser’s toolbar. The toolbar has items usually like the navigation buttons such as Back, Forward, Reload, Home, and so on. The toolbar property has the default property set as true which means visible and can be set to false which means hidden as per the programmer’s requirement. Thus this property namely the toolbar Property of Window Object is used to set visible or hidden the browser’s toolbar as per user’s needs. But one important point to note in this toolbar property is that the programmer must set this property before the window is opened and also it is essential that the programmer must have UniversalBrowserWrite privilege for doing this.

General syntax of toolbar property of Window Object:

window.toolbar[.visible = false]

The default value is true.

For example the statement below sets the toolbar of the window as hidden.

window.toolbar.visible=false;

screenLeft, screenTop of Window object with syntax.

pageXOffset:

The pageXOffset property sets or returns the X position of the current page in relation to the upper left corner of a window’s display area.

General syntax of pageXOffset property of Window Object:

window.pageXOffset

pageYOffset:

The pageYOffset property sets or returns the Y position of the current page in relation to the upper left corner of a window’s display area.

General syntax of pageYOffset property of Window Object:

window.pageYOffset

innerwidth:

The innerwidth property sets or returns the inner width of a window. The innerwidth property of the Window object is a read or write property that specifies the width in pixels. This width includes only the window’s content area and does not include the toolbar, scrollbars and so on.

General syntax of innerwidth property of Window Object:

window.innerwidth=pixels

innerheight:

The innerheight property sets or returns the inner height of a window. The innerheight property of the Window object is a read or write property that specifies the height in pixels. This height includes only the window’s content area and does not include the toolbar, scrollbars and so on.

General syntax of innerheight property of Window Object:

window.innerheight=pixels

outerwidth:

The outerwidth property sets or returns the outer width of a window. The outerwidth property of the Window object is a read or write property that specifies the total width in pixels. This width includes not only the window’s content area but also includes the toolbar, scrollbars and so on.

General syntax of outerwidth property of Window Object:

window.outerwidth=pixels

outerheight:

The outerheight property sets or returns the outer height of a window. The outerheight property of the Window object is a read or write property that specifies the total height in pixels. This height includes not only the window’s content area but also includes the toolbar, scrollbars and so on.

General syntax of outerheight property of Window Object:

window.outerheight=pixels

An example to illustrate the use of the above outerheight and outerwidth properties of Window object:

<html>
   <body>
      <script type="text/javascript">
        exforsysWindow=window.open(”,”)
        exforsysWindow.outerheight="300"
        exforsysWindow.outerwidth="200"
        exforsysWindow.document.write("The Window
        ‘exforsysWindow’ has outer height as: " +
        window.outerheight)
      </script>
   </body>
</html>

In the above example, window exforsysWindow is set with outerheight and outerwidth as 300 and 200 respectively and the message

The Window ‘exforsysWindow’ has outer height as: 300

is displayed as window.outerheight returns the outerheight of window.

JavaScript Windows Object Properties Part I