终端判断

<script type="text/javascript">

//判断访问终端

var browser={ //返回包含所有终端判断的对象

    versions:function(){

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

        return {

                trident: u.indexOf('Trident') > -1, //IE内核

                presto: u.indexOf('Presto') > -1, //opera内核

                webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核

                gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐内核

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

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

                android: u.indexOf('Android') > -1 || u.indexOf('Adr') > -1, //android终端

                iPhone: u.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器

                iPad: u.indexOf('iPad') > -1, //是否iPad

                webApp: u.indexOf('Safari') == -1, //是否web应该程序，没有头部与底部

                weixin: u.indexOf('MicroMessenger') > -1, //是否微信 （2015-01-22新增）

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

           };

    }(),

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

  }

</script>