little js bug

classes/partials/admin.inc

@@ -106,6 +106,7 @@
     $('wdts-sample-transcript-holder').insert(iframe);
   };
 
+  if ($('wdts-filters-to-user')) {
     $('wdts-filters-to-use').observe('change', load_sample_transcript);
     $('refresh-filter-preview').observe('click', function(e) {
       Event.stop(e);
@@ -113,6 +114,7 @@
     });
 
     Event.observe(window, 'load', load_sample_transcript);
+  }
 
   <?php if (isset($_POST['wdts']['return_page'])) { ?>
     make_active($('<?php echo str_replace('-page-', '-tab-', $_POST['wdts']['return_page']) ?>'));