Rails - Aug 2006 - project root path helper?

Google isn''t helping me out on this one, so I have to ask:  is there  
a convenient way to get the current project root in a template. I  
have a template with an OBJECT tag and an embedded QT movie that  
needs the full path to an asset. Basically, its the same motivation  
as link_to, but I just need root path by itself without the link tags  
around it so I can use it in PARAM tags within the OBJECT tag.

Thanks,
Steve

> Google isn''t helping me out on this one, so I have to ask:  is
there a
> convenient way to get the current project root in a template. I have a 
> template with an OBJECT tag and an embedded QT movie that needs the full
path
> to an asset. Basically, its the same motivation as link_to, but I just need
> root path by itself without the link tags around it so I can use it in
PARAM
> tags within the OBJECT tag.
RAILS_ROOT?

maybe with params[:controller] and params[:action] or something?