Thanks for posting.
Yeah I am referring to a <select>, sorry I always incorrectly call these drop downs.
Well the plugin handles bringing in the images I just need to change the URL that it points to when the user makes a selection in the select box.
I actually also asked this question on Stack Over Flow and someone has kindly replied. I think their answer will work. I was changing the variable but not refreshing the AJAX call.
Their solution is here, if you can add anything to this I’d like to know.