Make a Secondary Mighty Mouse Button Close a Window?

[ardesigns]

Hi. I recently bought a "Mighty Mouse" for my Mac. I know you can make the secondary buttons (the side and middle ones) do different things than the default. I opened System Preferences, and found I can make them open applications or execute the Expose. However, there's no action for "Close the current window/Quit the current application." It says you can select "other" for the action, which brings up a window of AppleScripts or something. So my question is: How can I make it so that when I click a secondary button, it closes the current window? Also, how can I make it so that when I click a secondary button, it closes the current application?

Thanks,
ARDesigns