resize以及页面检测

;(function (win, UP) {
    "use strict";
    UP.W = UP.W || {};
    UP.W.Rem = UP.W.Rem || {};
    var timer = null;
    var rem = 12;
    var doc = win.document;
    var docEl = doc.documentElement;
    /**
     * 刷新页面REM值
     */
    function refreshRem() {
        var width = docEl.getBoundingClientRect().width;
        width = width > 768 ? 750 : width;
        rem = width / 7.5;
        docEl.style.fontSize = rem + 'px';
    }
    /**
     * 页面缩放或重载时刷新REM
     */
    win.addEventListener('resize', function () {
        clearTimeout(timer);
        timer = setTimeout(refreshRem, 300);
    }, false);
    win.addEventListener('pageshow', function (e) {
        if (e.persisted) {
            clearTimeout(timer);
            timer = setTimeout(refreshRem, 300);
        }
    }, false);
    // 解决font-size过大导致间距不正常，必须指定body字号为12px
    if (doc.readyState === 'complete') {
        doc.body.style.fontSize = '12px';
    } else {
        doc.addEventListener('DOMContentLoaded', function (e) {
            doc.body.style.fontSize = '12px';
        }, false);
    }
    refreshRem();
    /**
     * rem to px
     * @param d
     * @returns {number}
     */
    UP.W.Rem.rem2px = function (d) {
        var val = parseFloat(d) * rem;
        if (typeof d === 'string' && d.match(/rem$/)) {
            val += 'px';
        }
        return val;
    };
    /**
     * px to rem
     * @param d
     * @returns {number}
     */
    UP.W.Rem.px2rem = function (d) {
        var val = parseFloat(d) / rem;
        if (typeof d === 'string' && d.match(/px$/)) {
            val += 'rem';
        }
        return val;
    };
})(window, window.UP || (window.UP = {}));

function browserRedirect(url) {
    var Url = url;
    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";
    var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
    var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
    var bIsAndroid = sUserAgent.match(/android/i) == "android";
    var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
    var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
    if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
//      var path = location.pathname
        console.log(location.pathname);
//      var path = location.pathname. 
        if (location.pathname == '/') {
            window.location.href = "/mView/index.html";
        } else if (location.pathname.toString().indexOf('catalog') != -1) {
            var _data = location.pathname.toString();
              _data = _data.substr(_data.lastIndexOf('/') + 1, _data.length)
            window.location.href = "/mView/book.html?bookId="+_data;
        } else if (location.pathname.toString().indexOf('class') != -1) {
             window.location.href = "/mView/classFirst.html"
        } else if (location.pathname.toString().indexOf('ranking') != -1) {
            window.location.href = "/mView/rank.html"
        } else if (location.pathname.toString().indexOf('readBook') != -1) {
            var _data = location.pathname.toString();
              _data = _data.substr(_data.lastIndexOf('/')  + 1, _data.length)
            _data = _data.split('@');
              window.location.href = "/mView/read.html?bookId="+_data[1]+'&contentId='+_data[0];
        } else if (location.pathname.toString().indexOf('userInfo') != -1) {
            window.location.href = "/mView/personal.html"
        } else {
            window.location.href = "/mView/index.html";
        }        
    }
    return false;
}
browserRedirect();