in theme/src/main/assets/assets/javascripts/groups.js [74:89]
$(".supergroup").each(function() {
var supergroup = $(this).attr('name').toLowerCase();
var groups = $(this).find(".group");
catalog[supergroup] = [];
groups.each(function() {
var group = "group-" + $(this).text().toLowerCase();
catalog[supergroup].push(group);
supergroupByGroup[group] = supergroup;
});
$(this).on("change", function() {
switchToGroup(supergroup, this.value);
});
});