document.addEventListener('deviceready', function() {
    var endUrl = "https://phonegap.com/authCallback";
    var startUrl = "http://github.com/login/oauth/authorize/";
    startUrl += "?client_id=89855411f5d2ab238ad2";
    startUrl += "&redirect_uri=" + endUrl;
    // scope
    // state
    // allow_signup

    PG_OAuth2.authenticate(function(url){
        setTimeout(function() {
            alert("Success " + url);
        },0)

    },
    function(err) {
        alert("error " + err);
    },
    startUrl,endUrl);
});