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This post will tell you how detect IE and its version. Refer: http://stackoverflow.com/questions/10964966/detect-ie-version-in-javascript

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<!DOCTYPE html>
<html lang="">

<head>
    <meta charset="UTF-8">
    <title>IE Tester</title>
</head>

<body>
    <script>
        function isIE() {
            var myNav = navigator.userAgent.toLowerCase();
            return (myNav.indexOf('msie') != -1) ? parseInt(myNav.split('msie')[1]) : false;
        }
        if (isIE() && isIE() <= 9) {
            // is IE version less than 9
            console.log("small");
        } else {
            // is IE 9 and later or not IE
            console.log("large");
        }
    </script>
</body>

</html>

ScreenShots:

IE 10 IE 9 IE 7