function addProduct(serverPage, query,  options, amount) {
		amount = document.getElementById(amount).value;
		if (amount == "") {
			amount = 1;
		}
		query = "doA=1&"+query + "&selectedValue=&amount=" + amount;
		var objID = "product_doa";
		doAjax(objID,serverPage, query);
		setTimeout("showShoppingCartSummary()",200);
	}
	
	function showShoppingCartSummary() {
		query="";
		objId="cartSummary";
		serverPage = "cart_summary.php";
		doAjax(objId, serverPage, query);
	}