/**
  * Render the concept sets column
  */
 protected function _renderColumn_ConceptSets(ConceptSearchResultsGroup $csrg, Concept $c, $group_i, $i)
 {
     $num_open_lists = 0;
     /*
      * Show direct parents (not all ancestors), siblings, and children of the current concept.
      */
     // Start column
     echo "\n<td class=\"col_3\">\n\t";
     echo "<div class=\"hierarchy\">\n";
     // If it has parents, loop through them
     if ($c->hasParents()) {
         foreach ($c->getParentIds() as $_parent_id) {
             // start list
             echo "<ul class=\"hierarchy_top\">\n";
             // render the parent
             $parent_c = $this->cc->getConcept($_parent_id, $c->css_dict);
             if (!$parent_c) {
                 continue;
             }
             $_name = $parent_c->getPreferredName();
             $_display_name = $this->_shrinkText($_name);
             echo '<li class="concept_parent"><span class="concept_name"';
             if ($_name != $_display_name) {
                 echo ' title="' . htmlentities($_name) . '"';
             }
             echo '>' . htmlentities($_display_name);
             echo '</span> (<a href="' . $this->getSearchUrl('id:' . $parent_c->concept_id, array('source' => $parent_c->css_dict->dict_db)) . '">' . $_parent_id . "</a>)</li>\n";
             // Render current and its children
             echo "<li><ul class=\"hierarchy_not_top\">\n";
             $this->_renderConceptSetCurrent($c, true);
             // Show siblings of the current
             $_i = 0;
             $num_results = $parent_c->getNumberChildren();
             foreach ($parent_c->getChildrenIds() as $_sibling_id) {
                 // skip if same as the current concept
                 if ($_sibling_id == $c->concept_id) {
                     continue;
                 }
                 // Display
                 $sibling_concept = $this->cc->getConcept($_sibling_id, $parent_c->css_dict);
                 $_name = $sibling_concept->getPreferredName();
                 $_display_name = $this->_shrinkText($_name);
                 echo '<li class="concept_sibling"><span class="concept_name"';
                 if ($_name != $_display_name) {
                     echo ' title="' . htmlentities($_name) . '"';
                 }
                 echo '>' . htmlentities($_display_name);
                 echo '</span> (<a href="' . $this->getSearchUrl('id:' . $_sibling_id, array('source' => $sibling_concept->css_dict->dict_db)) . '">' . $_sibling_id . '</a>)<br />';
                 echo '</li>';
                 // Hide lengthy results
                 $_i++;
                 if ($_i == $this->num_display_concept_set_results) {
                     $ul_toggle_id = 'ul_cs_toggle_' . $c->css_dict->dict_id . '_' . $_parent_id . '_' . $c->concept_id;
                     $ul_more_id = 'ul_cs_more_' . $c->css_dict->dict_id . '_' . $_parent_id . '_' . $c->concept_id;
                     $num_more_results = $num_results - $this->num_display_concept_set_results - 1;
                     echo "</ul>\n" . '<ul id="' . $ul_toggle_id . '" style="padding-left:24px;margin-top:6px;padding-top:0;list-style-type:none;">';
                     echo '<li class="concept_sibling"><a href="javascript:toggleElementVisibility(\'' . $ul_toggle_id . '\');toggleElementVisibility(\'' . $ul_more_id . '\');">' . 'See ' . $num_more_results . ' more siblings...</a></li></ul>' . "\n";
                     echo '<ul class="hierarchy_not_top" id="' . $ul_more_id . '" style="display:none;">';
                 }
             }
             // End list
             echo "</ul></li></ul>\n";
         }
     } elseif ($c->hasChildren()) {
         echo "<ul class=\"hierarchy_top\">\n";
         $this->_renderConceptSetCurrent($c, true);
         echo "</ul>\n";
     }
     // end column
     echo "</div></td>";
 }