I have a button on my home page which leads to a signup/login page. The signup/login page is just a page in views/pages/signup.ctp and as such doesn't have an action associated with it.

I want it so if a user is already logged in when they're on the homepage and they click my signup/login button, instead of taking them to the signup/login page it redirects them to another action. But since the signip/login page doesn't have an action I don't know where to do the check and redirect. Is there a way of checking if a persons logged in in the signup.ctp view? and redirect them from there?

Thats probably miles away from reality but I'm very confused. Any help appreciated. Cheers :)