[MORE INFO'S] Add a field when entering the field

[mafia]

Hello,

So I appeal to you because I have a little intelligence,
Let me explain:

I add a scrolling list with several extensions (.net / .com / .com etc with sub domain eg. C.la etc. ..) at the customer's order at the time of entering the field:

So to summarize I would do this: in the current field between the person is no extension field then a drop down or select it all extensions allowed.

I hope I was clear
Thank you in advance

It was at the command of a user
When you put a plan of accommodation for sale and someone places an order I know if you see where I want to come?

another small question
in terms of housing sold or there can add your domain name field http://www.vous.h2berg.org I would add her in the white box and replace you by my vote by voting.h2berg.org expl demo.h2berg.org I know if you see or I will come