基于JQ的纯AJAX购物站，带拖动，缩放等效果-JQ pure AJAX based shopping site, with dragging, zooming and other effects

ajax局部刷新技术的两个使用例子，一个用jq实现一个用js实现，其中需要去网上下载jquery.min.js 和json的jar包-ajax partial refresh techniques use two examples, one with jq use js to achieve a realization, which need to go online to download jquery.min.js and json jar package

JQ顶部进度条组件，可用于显示AJAX状态