Dynamic expand not working in Safari

Question about this wonderful plugin:

I have a page (http://www.bcstar.nl/0/?page_id=4207) that contains 9 collapsed areas, linked with a highlander. I want to be able to automatically expand one of the collapsed areas on page load with a url parameter, like in: http://www.bcstar.nl/0/?page_id=4207&panel=6

I do this with some Javascript that reads the url parameter and then simulates a mouse click on the class collapseomatic element with the right id, using element.click().

This works fine — except that it does not work in Safari!

Is there an alternative method I can use and that works with Safari as well?

Thank you in advance for your help!!

http://wordpress.org/extend/plugins/jquery-collapse-o-matic/