lib/simply.js
function( DomainName, callback ){

			var query = {
				DomainName : DomainName

			};

			this.sdb.request('CreateDomain', query, function(err, result){

				if(!err){

					callback(false, 'ok');

				}else{

					callback(err, 'error');

				}

			});

			return this;


		}
function( DomainName, callback ){

			var query = {
				DomainName : DomainName

			};

			this.sdb.request('CreateDomain', query, function(err, result){

				if(!err){

					callback(false, 'ok');

				}else{

					callback(err, 'error');

				}

			});

			return this;


		}
sdb.createDomain( ... );