function browserRedirect() {

            var _devices= navigator.userAgent.toLowerCase();

            var bIsIpad = _devices.match(/ipad/i) == "ipad";

            var bIsIphoneOs = _devices.match(/iphone os/i) == "iphone os";

            var bIsMidp = _devices.match(/midp/i) == "midp";

            var bIsUc7 = _devices.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";

            var bIsUc = _devices.match(/ucweb/i) == "ucweb";

            var bIsAndroid = _devices.match(/android/i) == "android";

            var bIsCE = _devices.match(/windows ce/i) == "windows ce";

            var bIsWM = _devices.match(/windows mobile/i) == "windows mobile";

            document.writeln("您的浏览设备为：");

            if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {

                // document.writeln("phone");

                //  移动设备显示状态

            } else {

            　　//  pc设备显示状态

            }

        }