Assistance Needed

I am currently attempting to learn ASP.NET scripting and have come a long way from response.write "Hello World" I currently have a book to assist me with scripting, however I am unable to find this in the book, or if it is in there, I do not fully understand it.

Either way, what I am trying to accomplish is say for example I enter an e-mail pancake@hotmail.com .

What I am trying to learn to do is pull the text before and after the "@" symbol, essentially grabbing only the domain text and displaying it in one field [hotmail.com], and the name text in the other field [pancake].  I have just started learning inStr and mid so I may not be at this level yet. Regardless I would still like to learn how to do it from people who already fully understand how to utilize this function.

For this sake, let's say I already have the HTML code that would do this, with the fields named "beforeAt" and "afterAt"