public override Umbraco.Courier.Core.Revision GetRevision(string alias)
{
//encrypt login and password
string loginName = "";
string pass = "";
getloginAndPass(UserId, ref loginName, ref pass);
string _url = getWSUrl(this.Url);
RepositoryWebservice repo = new RepositoryWebservice(_url);
repo.Credentials = new System.Net.NetworkCredential(loginName, pass);
Revision revi = repo.GetRevision(alias, loginName, pass);
repo.Dispose();
return revi;
}