[jQuery] (validate)

I am trying to override only the showLabel function in the
jquery.validate.js .
I've found inheritence plugin for it.
Nevertheless , I wasn't able to implement the example givven with it.
Is there any way that I can reuse the jquery.validate.js without
changing the original , but by overriding the function somehow , so
that the label will be handled in some other manner in my own file of
js ?