Pick up the Android version in the browser by Javascript
function getAndroidVersion(ua) { ua = (ua || navigator.userAgent).toLowerCase(); var match = ua.match(/android\s([0-9\.]*)/i); return match ? match[1] : undefined; }; getAndroidVersion(); //”4.2.1″ parseInt(getAndroidVersion(), 10); //4 parseFloat(getAndroidVersion()); //4.2