Strange menu behavior

Take a look at http://sensenich.bythepixel.com

The top menu, when you hover over "Products" and expand "Propellers", everything works as it should.

I want the Propellers to collapse when I hover away from the menu, which it does. However it also collapses the propellers when I try to click on "Accessories". I can't for the life of me figure out why it's doing that, especially because all other actions under the "collapse" function aren't being done. Mayb开发者_开发问答e one of you gurus can help me get to the bottom of this one.

Thanks.

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You should tag this with css also. Maybe someone will notice it.