// Provide a default path to dwr.engine
if (dwr == null) var dwr = {};
if (dwr.engine == null) dwr.engine = {};
if (DWREngine == null) var DWREngine = dwr.engine;

if (shoppingCart == null) var shoppingCart = {};
shoppingCart._path = '/dwr2';
shoppingCart.getDecoratedCartItems = function(callback) {
  dwr.engine._execute(shoppingCart._path, 'shoppingCart', 'getDecoratedCartItems', false, false, callback);
}
shoppingCart.getNumberOfItemsInCart = function(callback) {
  dwr.engine._execute(shoppingCart._path, 'shoppingCart', 'getNumberOfItemsInCart', false, false, callback);
}
shoppingCart.getTotal = function(callback) {
  dwr.engine._execute(shoppingCart._path, 'shoppingCart', 'getTotal', false, false, callback);
}