TO FIND BROWSER USING JAVASCRIPT

Using below JavaScript you can get information about browser.

<script language="JavaScript" type="text/javascript">
var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;    // For IE
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;  // For Firefox
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;  // For Opera
alert(isIE);
alert(isWin);
alert(isOpera);
</script>