(chain ($ document)
       (ready
         (lambda ()
           (chain ($ ".link-header")
                  (click
                    (lambda ()
                      (chain ($ this)
                             (siblings ".link-content")
                             (each (lambda ()
                                     (if (= (chain ($ this) (css "max-height")) "0px")
                                       (chain ($ this)
                                              (css "max-height" (@ this scroll-height)))
                                       (chain ($ this)
                                              (css "max-height" "0px"))))))
                      (chain ($ this)
                             (parent)
                             (toggle-class "closed"))))))))