Fixed notice undefined index

When working as an operator the following messages appear quite often:
Notice: Undefined index: qid in quexf\verifyjs.php on line 196
Notice: Undefined index: description in quexf\verifyjs.php on line 198

verifyjs.php

@@ -192,8 +192,10 @@ function bgidtocss($zoom = 1,$fid,$pid)
 }
 
 $qid_desc = get_qid_description($fid);
-$qid = $qid_desc['qid'];
-$description = $qid_desc['description'];
+if (isset($qid_desc['qid']))
+    $qid = $qid_desc['qid'];
+if (isset($qid_desc['description']))
+    $description = $qid_desc['description'];
 
 if (isset($_GET['complete']))
 {