<!DOCTYPE html>
<html>
<head>
<title></title>
<style type='text/css'>
</style>
</head>
<body>
<input type="button" id="test" value="test"></input>
</body>
<script type='text/javascript' src='http://code.jquery.com/jquery-1.8.0.min.js'></script>
<script type='text/javascript'>
$('#test').click(function(){
// method 1
var ie = "v"=="\v";
// method 2
var browser=navigator.appName
if(browser === 'Microsoft Internet Explorer'){
var b_version=navigator.appVersion
var version=b_version.split(";");
var trim_version=version[1].replace(/[ ]/g,"");
if(trim_version === 'MSIE6.0'){
alert('ie6');
} else{
alert('other ie browser');
}
} else{
alert('other browser');
}
});
</script>
</html>