collapse accordion all at once

collapse accordion all at once

I am new to jQuery and I
just put the accordion on one of my pages.
 
I have four sections in the accordion. The last two contain quite bit
of content. By default (jQuery code), the first accordion section is
open/expanded. I would like to have all the sections closed/collapsed on page load

and/or if the user would prefer to collapse them all at once, just like they can
have all sections open at once.
 
Can this be done?  If so, could you tell me where I can find the code or provide it?
 
The code I use is the code here: http://jqueryui.com/demos/accordion/.
 
I anticipate your reply!
 
Sincerely,
noah