JS判断终端浏览器类型

根据终端浏览器类型不同加载不同的JS或CSS文件

<script>

    var browser = {

        versions: function () {

            var u = navigator.userAgent, app = navigator.appVersion;

            return {

                trident: u.indexOf('Trident') > -, //IE内核

                presto: u.indexOf('Presto') > -, //opera内核

                webKit: u.indexOf('AppleWebKit') > -, //苹果、谷歌内核

                gecko: u.indexOf('Gecko') > - && u.indexOf('KHTML') == -,//火狐内核

                mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端

                ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端

                android: u.indexOf('Android') > - || u.indexOf('Adr') > -, //android终端

                iPhone: u.indexOf('iPhone') > -, //是否为iPhone或者QQHD浏览器

                iPad: u.indexOf('iPad') > -, //是否iPad

                webApp: u.indexOf('Safari') == -, //是否web应该程序，没有头部与底部

                weixin: u.indexOf('MicroMessenger') > -, //是否微信 （2015-01-22新增）

                qq: u.match(/\sQQ/i) == " qq" //是否QQ

            };

        }(), language: (navigator.browserLanguage || navigator.language).toLowerCase()

    }

    if (browser.versions.android) {

        document.write("<script src='http://libs.baidu.com/jquery/2.1.1/jquery.min.js'><\/script>");

        document.write("<script src='http://115.159.115.27/Content/workorder/js/android.js'><\/script>");

    }

    else if (browser.versions.ios) {

        document.write("<script src='http://115.159.115.27/Content/workorder/js/jquery-1.8.3.min.js'><\/script>");

        document.write("<script src='http://115.159.115.27/Content/workorder/js/index.js'><\/script>");

    }

    else {

        document.write("<script src='http://115.159.115.27/Content/workorder/js/jquery-1.8.3.min.js'><\/script>");

        document.write("<script src='http://115.159.115.27/Content/workorder/js/index.js'><\/script>");

    }

</script>