Navigation on web pages

I'm creating an internal web site and following the tutorial. What I'd
like to do is create a tree type of navigation where children are
indented from parents or better yet create a "pop up" navigation which
lets you roll over a word, and a list of additional options (children)
pop up for the user to click on. Is that possible using the web site
designer? If not, is it possible for the links running across the top of
the page to be different from the links running down the side of the
page? Right now I can only make them the same. Also, when I create
children, they are just added to the side navigation as another item
with no visual regard to the parent. Does anyone know how to do this or
have any suggestions? Thanks.
 
Gay Kelly* Programmer/Analyst* SunGard * GMI * 1 South Wacker Drive,
Suite 400, Chicago, Illinois 60606

Tel  1 312 577 6180 * Fax  1 866 867 4785 * www.sungard.com/GMI
<file:///C:/Documents%20and%20Settings/gkelly/Application%20Data/Microso
ft/Signatures/www.sungard.com/GMI> 

CONFIDENTIALITY: This email (including any attachments) may contain
confidential, proprietary and privileged information, and unauthorized
disclosure or use is prohibited. If you received this email in error,
please notify the sender and delete this email from your system. Thank
you.