function l_tags () { return "/db/tags/index.php"; }
function l_tag ($tag_type_id) { return "/db/tags/index.php?id=$tag_type_id"; }
function l_tag_obj ($tag) { return href(l_tag($tag['tag_type_id']),$tag['tagname']); }
+function l_tag_roles ($tag_type_id) { return "/db/tags/index.php?id=$tag_type_id&show_details=0&show_roles=1"; }
function l_nodegroups () { return "/db/tags/nodegroups.php"; }
function l_nodegroup ($nodegroup_id) { return "/db/tags/nodegroup.php?id=$nodegroup_id"; }