jquery validation

jquery validation

Helle there!
I am validating a form using the jquery validation plugin from bassisstance.de and i'm having a few problems :

when i use the built in validation with
$(#myform).validate()
; But when i try and combine it with other functions nothig woks anymore - no error messages, nothing -

Whats the synthax to be used to mix different functions together??

thanks for any help