PHP snippet for identifying whether a node belongs to a specific group?

I am also very interested in this - I don't need a specific menu for the group, but I want the heading of node and teaser to show an icon for the group the node belongs to (especially on the front page)...

I have just found a solution (for details see http://drupal.org/node/150911):

<?php
foreach( (array)$node->og_groups as $group ) {
switch ( $group ) {
case 37:
   print "Group 37";
   break;

case 38:
   print "Group 38";
   break;

default:
   print "Unknown group or Not in a group";
   break;
}
}
?>

Automatically closed -- issue fixed for two weeks with no activity.