Closing a JFrame without using System.exit(0)

Hello all,
I'm writting an application at the moment that uses a JFrame as an "about box" invoked when a menu item from another JFrame is selected . The about box is set to undecorated, and I have set up an Thread to handle an animation of the credits that move up slowly. I have also added into it code to play a sound file while the credits are running.
I wanted to have it so that the user can just click once anywhere on the Panel area of the about box, and that would close the about box window and stop the sound.
I can get it to stop the sound on click no problem, what I'm having issues with is closing just the about box Frame. I've used System.exit(0) but this closes the original application, which I dont want it to do. I've been looking at online example code and I've found that dispose() might work... Problem is my JFrame for the about box is initiated in the main applications JFrame under an eventListener for the menuItem 'about'. The sound file is played inside the JPanel of the about box. And the listener to close it is located in the same place ( about box JPanel ).. does anyone know how to get this frame ( initiated in main applications JFrame ) and dispose of this frame through code located in the JPanel of the about box.
I hope this is descriptive enough for you.
Please let me know if you have any questions about my question.
Many thanks,
Mark.

It seems you are asking how to find the parent frame of a Component that you know is within a frame?
You can getParent() of the component. If it is a frame (instanceof) - dispose, else check for the getParent()...
If you don't want to code it yourself use SwingUtilities.getWindowAncestor(Component) to get the Window in which the panel is.
HTH
Mike

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