- (void)authenticateWithCallback:(Function)aCallback
{
    var request = new CFHTTPRequest();
    request.open("POST", BASE_URL+"login/simpleAjaxAuth?j_username="+encodeURIComponent(username)+"&j_password="+encodeURIComponent(authenticationToken), true);

    request.oncomplete = function()
    {
var s=request.success();
alert(s);
        if (request.success())
        {
                alert(request.responseText());
            var response = [request.responseText() objectFromJSON];

            success=response.success;
alert(response);

        if(success)
        {
            [[CPUserSessionManager defaultManager] setStatus:CPUserSessionLoggedInStatus];
alert("Success");
        } else
        {
alert("Fail");
        }
    }
        }

    request.send("");
}