Config next radio button

[offoner]

Hi

I want to make a menu with radio buttons to select payment method.

Now i get all radio buttons for each method but i cant find the way to configure the button that accept the selected option...

 

i get something like this...

<p class="cart_navigation"><a href="¿maybe somethin here?" class="button"> {l s='Continue'} »</a></p>

 

 

Thanks in advance for your help