function facebookConnect()
{
    var api_key = '5cfc9439aeb144d5cb0bf5cd3954dd5d'; 
    var channel_path = '/xd_receiver.htm'; 
    
    FB.Facebook.init(api_key, channel_path); 
    var api = FB.Facebook.apiClient;
    
    //Redireccionamos a pagina para iniciar usuario de facebook
    alert(api.get_session().uid);
    window.location.reload(true);
}

function SolicitaExtPermissions()
{
    var api_key = '5cfc9439aeb144d5cb0bf5cd3954dd5d'; 
    var channel_path = '/xd_receiver.htm'; 
    
    FB.Facebook.init(api_key, channel_path); 
    FB.Connect.showPermissionDialog("publish_stream,email",function(){window.location.href='facebookConnect.aspx'});
}