private void AddCommonParams(ref FoursquareRequest refRequest)
{
if (IsLoggedIn())
{
refRequest.AddParam("oauth_token", Token);
}
else
{
refRequest.AddParam("client_id", _clientId);
refRequest.AddParam("client_secret", _clientSecret);
}
if (!refRequest.HasParam("v"))
{
refRequest.AddParam("v", _version);
}
refRequest.AddParam("m", "foursquare");
}