525495 php + google+ api

hello, I have a site here that uses facebook connect [login to view URL] Google+ api is live now [login to view URL] I want to use google accounts (like they use here [login to view URL])instead of facebook accounts to register for the site and instead of dragging over the facebook id will drag over the google plus id. Then just provide the same style widget they provide on the example site as well. then we will add a dropdown for categories to the registration and add people to a new circle when voting for them the vote now button will work the same but we will create a part called circle and every user you vote on will appear in that circle on the site....and the later the person can click through and manually add them on google [login to view URL]://[login to view URL] we will show the amount of followers,and following like the have there