var isandroid = false;
var browser = {
    versions: function () {
        var u = navigator.userAgent || navigator.vendor || window.opera, app = navigator.appVersion;
        return {
            trident: u.indexOf('Trident') > -1,
            presto: u.indexOf('Presto') > -1,
            webKit: u.indexOf('AppleWebKit') > -1,
            gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,
            mobile: !!u.match(/AppleWebKit.*Mobile/) || !!u.match(/Windows Phone/) || !!u.match(/Android/) || !!u.match(/MQQBrowser/),
            ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/),
            android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1,
            iPhone: u.indexOf('iPhone') > -1 || u.indexOf('Mac') > -1,
            iPad: u.indexOf('iPad') > -1,
            webApp: u.indexOf('Safari') == -1
        };
    }()
}
if (browser.versions.mobile && browser.versions.android) {
    isandroid = true;
}