检测浏览器版本低于或者等于IE6时自动跳转到另外一个网页

    <script type="text/javascript">
    ieGo();
function ieGo(){ 
        var ie = !-[1,];  
        if(ie == true) {
            var ua = navigator.userAgent.toLowerCase();
            var version = parseInt(ua.match(/msie ([\d.]+)/)[1]);
            if(version <= 6) {
                location.href='loginold.aspx'; 
            }
        }
}
</script>