门户显示一个新的页，此页包含用户先前输入的旅行请求详细信息和批准或拒绝请求的按钮。
The portal displays a new page containing the travel request details the user entered before and buttons to either approve or to reject the request.
如果您的we b页含有一个按钮，可以进行一个Ajax或RESTful服务调用或者显示结果，您应该利用这些浏览器来显示用户即将发生的事情。
If your web page contains a button that makes an Ajax or RESTful service call and displays the results, you should do something with the browser to show the user that something is happening.
显示/取消标签页的关闭按钮
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