login and popup window?

Hi,

I'm using ColdBox 3.5 and CF 9

I have a functional login page that performs a query against a SQL
table to authenticate users. Once a user is authenticated, I'd like
to display a jQuery dialog box or some popup window with some html
content and a small form that the user must fill out before accessing
the system. I'm unsure how to display this popup as I don't want to
put any js code in my event ha ndle which is where the login
processing is happening.

Any idea of an elegant way to do this without rewriting the login page
to do more of an ajax style processing? Right now my login works, but
it just calls an event handler. I'm stuck on how I can display at
popup window/modal dialog box at this point in the execution
lifecycle.

Any help appreciated.