说明：  AJAX基础教程及初步使用 Ajax基础教程 什么是 AJAX 　　AJAX (异步 JavaScript 和 XML) 是个新产生的术语,专为描述JavaScript的两项强大性能.这两项性能在多年来一直被网络开发者所忽略,直到最近Gmail, Google suggest和google Maps的横空出世才使人们开始意识到其重要性.
(AJAX Essentials and Essentials initial use of Ajax What is AJAX AJAX (Asynchronous JavaScript and XML) is an emerging term for the description of the two powerful JavaScript performance. These two properties over the years has been ignored by the network developer , until recently, Gmail, Google suggest and google Maps of横空born before people started to realize its importance.)