[Vtigercrm-developers] Adding a new field with radio button

[natan.pereira at fator9.com]

I am having some problems with a new field, what I want is:

Add two radios buttons (when I am registring a new Lead), that when  
one is selected  appers a especific field and when the other is  
selected appers other especific field.

I know how to do a field in database, but I dont know how to do the  
radio button and where I will put de progamming (if clause).

I will be glad with somebody could help me...