js判断是否手机模式

function autoLoad() {                 var sUserAgent = navigator.userAgent.toLowerCase();                 var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";                 var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";                 var bIsMidp = sUserAgent.match(/midp/i) == "midp"; //移动设备                 var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4"; //手机浏览器                 var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb"; //uc手机浏览器                 var bIsAndroid = sUserAgent.match(/android/i) == "android";                 var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce"; //windows 移动平台                 var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";                 if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {                     window.location.href = 'http://m.abc.com/';     //移动端域名                 }             }