jcsrb

function get_avatar_from_service(service, userid, size) {
    // this return the url that redirects to the according user image/avatar/profile picture
    // implemented services: google profiles, facebook, gravatar, twitter, tumblr, default fallback
    // for google   use get_avatar_from_service('google', profile-name or user-id , size-in-px )
    // for facebook use get_avatar_from_service('facebook', vanity url or user-id , size-in-px or size-as-word )
    // for gravatar use get_avatar_from_service('gravatar', md5 hash email@adress, size-in-px )
    // for twitter  use get_avatar_from_service('twitter', username, size-in-px or size-as-word )
    // for tumblr   use get_avatar_from_service('tumblr', blog-url, size-in-px )
    // everything else will go to the fallback
    // google and gravatar scale the avatar to any site, others will guided to the next best version