1. /**
  2.  * Render callback.
  3.  */
  4. function theme_panels_tabs_style_render_panel($display, $owner_id, $panes, $settings) {
  5.   $output = '';
  6.  
  7.   // Generate a unique id based on the CSS ID and the name of the panel in the
  8.   // layout.
  9.   $pane_id = reset(array_keys($panes));
  10.   $panel = $display->content[$pane_id]->panel;  
  11.   $id = "$display->css_id-$panel";
  12. }