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Browsers View port Width & Height using Javascript

, 19 Apr 2011 CPOL
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To get Browsers View port Width & Height using JavaScript
This code will help you to get the browser's view port width & height.

First, we need to write the below JavaScript inside the head section in HTML.
<script type="text/javascript" language="javascript">
        function fnGetWidthHeight() {
            var viewportwidth;
            var viewportheight;
            // The more standards compliant browsers (mozilla/netscape/opera/chrome/IE7) use window.innerWidth and window.innerHeight
            if (typeof window.innerWidth != 'undefined') {
                viewportwidth = window.innerWidth;
                viewportheight = window.innerHeight;
            }
            // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
            else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0) {
                viewportwidth = document.documentElement.clientWidth;
                viewportheight = document.documentElement.clientHeight;
            }
            // older versions of IE
            else {
                viewportwidth = document.getElementsByTagName('body')[0].clientWidth;
                viewportheight = document.getElementsByTagName('body')[0].clientHeight;
            }
            alert('Your viewport width & height is ' + viewportwidth + 'x' + viewportheight);
        }
    </script>
Then, we need to call this script from the body tag like below:
<body onload="fnGetWidthHeight()">
Now, run and see the size of view port area by increasing/decreasing the browser width/height.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Toniyo Jackson
Software Developer
India India
No Biography provided

Comments and Discussions

 
Generalnice script Pin
_Programmer26-Apr-11 4:53
member_Programmer26-Apr-11 4:53 
GeneralRe: Thank You Pin
Toniyo Jackson26-Apr-11 20:58
memberToniyo Jackson26-Apr-11 20:58 
GeneralCool. +5 for sharing the Tip. Pin
Kunal_Chowdhury20-Apr-11 9:01
mvpKunal_Chowdhury20-Apr-11 9:01 
GeneralRe: Thanks Kunal Pin
Toniyo Jackson20-Apr-11 21:26
memberToniyo Jackson20-Apr-11 21:26 

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