Redirect after login

I redisgned the login and the registration page as a new single page. I copied the original code from the concrete folder.
But now I have the problem, when a user enters false login information he gets redirected to the official login page with the error message.
How can i redirect him after an unsuccessful login to my login page with an error message?

Thanks for you answers in advance

View Replies:
c5dragon replied on at Permalink Reply
alexanderkon replied on at Permalink Reply
No i quite literally copied the code and added some modifications (Stylewise) and know I have absolutely no idea how to manipulate the redirect

But thank your for you answer
c5dragon replied on at Permalink Reply
MrKDilkington has posted some good threads here to the same question:

Maybe you can read through these to see how this override works.