function CheckForm(action) {

	if (action == 'compare') {

		return compareProducts(config.CompareLink);

	}



	var data = {};

	var i = 0;



	// iterate over each product on the page and add to cart if qty > 0

	$(".quantityInput").each(function() {

		if(isNaN($(this).val())) {

			alert(lang.InvalidQuantity);

			this.focus();

			this.select();

			valid = false;

			return false;

		}



		if ($(this).val() > 0) {

			// get the id of the product

			// qty[43]

			var len = this.name.length;

			var id = this.name.substr(4, len - 5);

			data[id] = $(this).val();



			i++;

		}

	});



	if (i > 0) {

		// ajax request to add products

		$.ajax({

			url: config.ShopPath + '/remote.php?w=addproducts',

			dataType: 'json',

			data: {products: $.param(data)},

			success: function(data) {

				if(data.error != undefined) {

					alert(data.error);

				}

				else {

					window.location = config.ShopPath + "/cart.php";

				}

			}

		});

	}

	else {

		alert(lang.PleaseSelectAProduct);

	}



	return false;

}