I'm developing a site that involves a lot of long posts I'd like to break up using the nextpage quicktag. On the first page there's a large splash photo in the header that I'd like to disappear on subsequent pages—so I need some way of testing if the user is on the first page. I did find this code:
if ( isset($wp_query->query_vars['page'] ) )
But that seems to only works with default permalink settings. I need something that works with the Postname permalink setting. Any help is greatly appreciated.