Do you have this in the OnClick section of the kgPanels scripts area? If so, I don't see anything in your code to specify up/down clicks. The script fires for both.
http://www.wowace.com/addons/kg-panels/
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"You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are." -Benjamin Hoff,
The Tao of Pooh