--- similarterms.module	2007-09-08 03:10:10.000000000 +0530
+++ similarterms/similarterms.module	2008-01-08 14:42:15.000000000 +0530
@@ -40,11 +40,11 @@
   else if ($op == 'view') {
     if ($delta == 0) {
       $block['subject'] = t('Similar');
-      $block['content'] = theme_similarterms(similarterms_list());
+      $block['content'] = theme('similarterms', similarterms_list());
     }
     else {
       $block['subject'] = t('Similar');
-      $block['content'] = theme_similarterms(similarterms_list($delta));
+      $block['content'] = theme('similarterms', similarterms_list($delta));
     }
     return $block;
   }
@@ -105,12 +105,12 @@
  * @param array $nodes
  */
 function theme_similarterms($nodes) {
+  $items = array();
   if (!empty($nodes)) {
-    $output .= "<ul>\n";
     foreach ($nodes as $node) {
-      $output .= '<li>'. l($node->title, 'node/'. $node->nid) ."</li>\n";
+      $items[] = l($node->title, 'node/'. $node->nid); 
     }
-    $output .= "</ul>\n";
+    $output = theme('item_list', $items);
   }
   return $output;
 }