Site banner allows you to display a banner at the top and bottom of a Drupal site. It is displayed at a fixed position so content is viewed within these top and bottom banners much like the administrator's toolbar. It also adds the banners to printed copies of Drupal site content.
The Drupal Slimbox2 module is a wrapper that integrates the lightweight Slimbox2 jQuery plugin with a Drupal site seamlessly and automatically. Once installed and activated, you can add lightbox effects to hyperlinks by adding a rel="lightbox" or rel="lightbox-series" attribute to your link.
About the Slimbox2 jQuery plugin (from the Slimbox2 web page)
Slimbox2 is a 4 KB visual clone of the popular Lightbox2 script by Lokesh Dhakar, written using the jQuery javascript library. It was designed to be very small, efficient, standards-friendly, fully customizable, more convenient and 100% compatible with the original Lightbox2.
Download the Slimbox jQuery plugin from the Slimbox 2 download link, unpack it and rename it to slimbox2, then upload it to: /sites/all/libraries so the url to the slimbox2 library on your site will be: /sites/all/libraries/slimbox2.