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This is accomplished by injecting the Request object, and invoking the isXHR() method. This value will be true for Ajax requests, and false for traditional request.

Zone Effect Functions

A Zone may be initially visible or invisible. When a Zone is updated, it is made visible if not currently so. This is accomplished via a function on the Tapestry.ElementEffect client-side object. By default, the show() function is used for this purpose. If you want Tapestry to call a different Tapestry.ElementEffect function when updates occur, specify its name with the zone's show parameter.

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