Grabbing form data using link_to

Is there a way I can grab the form data using javascript (onclick)
combined with link_to
For example: link_to "link_name", {:action => "myAction"}, :onclick
=> ...

Appreciate your help.
Aditya

Is there a way I can grab the form data using javascript (onclick)
combined with link_to
  

just use the :submit parameter when calling link_to

regards,

javier ramirez