jquery ajax提交表单

var activityId = $("#activityId").val();
			$.ajax({
				type: "post",
				url: "/arweb/reserve/add.action",
				async: false,
				data: "activityId = " + activityId,
				dateType: "html",
				success: function(){
					alert("您已预约成功！");
					$("#reserveBtn").attr("disabled", true);
				},
				error: function(){
					alert("您的预约信息保存失败，请重新预约！");
				}
			});