I'm hoping that one of the javascript experts amongst us here will be able to help me out...

I have a form and within that form are two text fields... with the id's subject_1 and content_1. What I would like is for the user to be able to click a link and have a second pair of text fields open underneat with the id#s subject_2 and content_2. And then, should they choose, click the link again and open another pair of text fields called subject_3 and content_3.

How can I do that ? Thanks for any help..