js判断设备响应不同网址

 <script type="text/javascript">
        // borwserRedirect
        (function browserRedirect() {
            var sUserAgent = navigator.userAgent.toLowerCase();
            var bIsIpad = sUserAgent.match(/ipad/i) == 'ipad';
            var bIsIphone = sUserAgent.match(/iphone os/i) == 'iphone os';
            var bIsMidp = sUserAgent.match(/midp/i) == 'midp';
            var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == 'rv:1.2.3.4';
            var bIsUc = sUserAgent.match(/ucweb/i) == 'web';
            var bIsCE = sUserAgent.match(/windows ce/i) == 'windows ce';
            var bIsWM = sUserAgent.match(/windows mobile/i) == 'windows mobile';
            var bIsAndroid = sUserAgent.match(/android/i) == 'android';


            if (bIsIpad || bIsIphone || bIsMidp || bIsUc7 || bIsUc || bIsCE || bIsWM || bIsAndroid) {
                window.location.href = 'http://www.east.com.cn/mobile';
            }
        })();
    </script>