Pushing a button when pressing on Tab

Hey
Im trying to create in my page (jdeveloper version 11.2)
that when i move to another Tab a button will be pressed
Do you know how to do that?

Hi,
in the showDetailItem disclosure listener invoke the button's action
refer this
disclosureListener of af:showDetailItem Invoking Method Twice
http://mjabr.wordpress.com/2011/05/20/invoke-buttons-action-programatically-in-java/
~Abhijit

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