(function (w) {
  w.Common = {
    getUserId: function () {
      return (+new Date()) + Math.random().toString(10).substring(2, 6);
    },
    GetQueryString: function (name) {
      var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
      var r = window.location.search.substr(1).match(reg);
      if (r != null) return unescape(r[2]);
      return null;
    },
    getIeVersion:function () {
      if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/8./i)=="8.") {
        return "IE8";
      } else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/9./i)=="9.") {
        return "IE9" ;
      }else{
        return "!IE"
      }
    },
    recommend_uid:function() {
      function gethash(s) {
        var m;
        if (s.indexOf('?') > 0) {
          var k = s.split('?')[1];
          m = k.length;
        } else {
          m = 0;
        }
        return m;
      }
      var uid = function () {
        var d = (new Date() - 0);
        var s = window.location.href;
        var hash = gethash(s);
        uid = "" + d + hash + Math.random() + Math.random() + Math.random() + Math.random();
        uid = uid.replace(/\./g, "").substring(0, 32);
        return uid;
      };
      var ml = uid();
      var cookie_uid = function () {
        $.cookie('cookie_uid_ad', ml, {
          expires: 30,
          path: '/',
          domain: 'news.7654.com'
        });
      };
      if (!$.cookie('cookie_uid_ad')) {
        uidm = ml;
        cookie_uid(ml);
      } else {
        uidm = $.cookie('cookie_uid_ad');
      }
      return uidm;
    },
    getSystem: function () {
      var sUserAgent = navigator.userAgent;
      var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
      var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh") || (navigator.platform == "MacIntel");
      if (isMac) return "Mac";
      var isUnix = (navigator.platform == "X11") && !isWin && !isMac;
      if (isUnix) return "Unix";
      var isLinux = (String(navigator.platform).indexOf("Linux") > -1);
      if (isLinux) return "Linux";
      if (isWin) {
        var isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1 || sUserAgent.indexOf("Windows 2000") > -1;
        if (isWin2K) return "Win2000";
        var isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1 || sUserAgent.indexOf("Windows XP") > -1;
        if (isWinXP) return "WinXP";
        var isWin2003 = sUserAgent.indexOf("Windows NT 5.2") > -1 || sUserAgent.indexOf("Windows 2003") > -1;
        if (isWin2003) return "Win2003";
        var isWinVista = sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") > -1;
        if (isWinVista) return "WinVista";
        var isWin7 = sUserAgent.indexOf("Windows NT 6.1") > -1 || sUserAgent.indexOf("Windows 7") > -1;
        if (isWin7) return "Win7";
        var isWin10 = sUserAgent.indexOf("Windows NT 10") > -1 || sUserAgent.indexOf("Windows 10") > -1;
        if (isWin10) return "Win10";
      }
      return "other";
    },
    getBrowser:function () {
      var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
      var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器
      var isIE = userAgent.indexOf("compatible") > -1
        && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器
      var isEdge = userAgent.indexOf("Edge") > -1; //判断是否IE的Edge浏览器
      var isFF = userAgent.indexOf("Firefox") > -1; //判断是否Firefox浏览器
      var isSafari = userAgent.indexOf("Safari") > -1
        && userAgent.indexOf("Chrome") == -1; //判断是否Safari浏览器
      var isChrome = userAgent.indexOf("Chrome") > -1
        && userAgent.indexOf("Safari") > -1; //判断Chrome浏览器

      if (isIE) {
        var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
        reIE.test(userAgent);
        var fIEVersion = parseFloat(RegExp["$1"]);
        if (fIEVersion == 7) {
          return "IE7";
        } else if (fIEVersion == 8) {
          return "IE8";
        } else if (fIEVersion == 9) {
          return "IE9";
        } else if (fIEVersion == 10) {
          return "IE10";
        } else if (fIEVersion == 11) {
          return "IE11";
        } else {
          return "0";
        }//IE版本过低
        return "IE";
      }
      if (isOpera) {
        return "Opera";
      }
      if (isEdge) {
        return "Edge";
      }
      if (isFF) {
        return "FF";
      }
      if (isSafari) {
        return "Safari";
      }
      if (isChrome) {
        return "Chrome";
      }
    },
  };
})(window);