function showCart() {
  dojo.xhrPost({
    url: "actions/showCart.php",
    handleAs: "text",
        content:{},
        load: function(responseObject, ioArgs) {
        dojo.byId("shoppingCart").innerHTML = responseObject;
      return responseObject;
    }
  });
}
function addToCart(x) {
  var quantity = dojo.byId('quantity').value;

  dojo.xhrPost({
    url: "actions/addToCart.php",
    handleAs: "text",
        content:{productId:x, productQuantity:quantity},
        load: function(responseObject, ioArgs) {
        // dojo.byId("shoppingCart").innerHTML = responseObject;
	showCart();
      return responseObject;
    }
  });
}
function removeFromCart(x) {
  dojo.xhrPost({
    url: "actions/removeFromCart.php",
    handleAs: "text",
        content:{productId:x},
        load: function(responseObject, ioArgs) {
        // dojo.byId("shoppingCart").innerHTML = responseObject;
	showCart();
      return responseObject;
    }
  });
}