How Does Google Treat Hidden Text That's Only Temporarily Hidden?

Many webmasters do fancy stuff with JavaScript and AJAX where text would technically be hidden until a user takes action, such as clicking on a button, to actually display that text on the page. How does Google handle this type of hidden text?

Source: http://feedproxy.google.com/~r/sewblog/~3/1KvZrSwsH38/How-Does-Google-Treat-Hidden-Text-Thats-Only-Temporarily-Hidden

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