Fetching User Credentials using Javascript after login

See more:

Google

API

authentication

I want to fetch User's name and Email after he login via google to my web app(*asp.net)..

I've done something like this for facebook:

FB.Event.subscribe('auth.statusChange', function (response) {

if (response.authResponse) {
// user has auth'd your app and is logged into Facebook
FB.api('/me', function (me) {
//debugger;
if (me.name && me.email){//my code} });}}
I want to do like same for the google login.. I'm being able to login using google a/c but I dont know what event is to use to fetch user's credentials

Plz Help