title: Adding forms based on user button clicks
body: <p>I was wondering if there were any strategies to adding forms based on a button a user clicked. For example, lets say I have a form with artist, title, and genre. Then i have a button under those forms that say 'add another song', then it should display another set of fields of artist title, and genre. What are some strategies I can go about achieving this? Is there any ruby specific functions I can use, or am I stuck having to use something like JavaScript? Thanks :)</p>