start or reset carousel to the element which corresponds to the current node page NID

I'd like to have my carousel help navigate the user through a bunch of photos. The carousel is at the bottom of each full-node page.
It's working well, but I have a problem when the site loads each page. The carousel starts at the very beginning again.

Is there a way to allow PHP determine the value for "start" in the style_options array? Or, is there a way to create a handler which would get the start value from an argument? The argument would need to read a node id, then find which element in the carousel links to that full-node page.

I'm having a tough time figuring this out. Any help would be great - thanks!