Google Map Sidebar: Collapsible accordion with first item expanded on page load

Hi,

I would like to implement a specific JQuery accordion menu on my current Google maps project - essentially to use the 4th example '4: Collapsible accordion with first item expanded at page load' on the page below to control the marker points on my map:

http://www.i-marco.nl/weblog/jquery-accordion-menu-redux/

My map is on the site below, and so far I have been able to have the first category closed and the rest open at page load by using the code below, but want to ideally have it displayed in reverse, much like the 4th example on the 'jquery-accordion-3' page above.

Here is part of the code I have used so far:

$("h4.toggleCollapsableContent:first")
      .addClass('closed')
      .next('.collapsableContent').hide();

Code (markup):

Here is my project: http://www.ucl.ac.uk/admission/virtual-tours/index2.shtml

Any help to get it to instead display the collapsible accordion with first item expanded at page load would be greatly appreciated.

Thanks,

Gray