$("a[rel^='prettyPhoto']").prettyPhoto({theme: 'dark_rounded', show_title: false});
if ( !navigator.userAgent.match(/iPhone/i) && !navigator.userAgent.match(/iPod/i) && !navigator.userAgent.match(/iPad/i) ) { 
   $("a[rel^='prettyPhotoDesktopOnly']").prettyPhoto({theme: 'dark_rounded', show_title: false});
}