a bit protection against search result bugs in interactive search

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7920 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/js/yacyinteractive.js

@@ -168,6 +168,8 @@ function resultImages() {
 
 function resultLine(type, item, linenumber) {
   // evaluate item
+  if (item == null) return "";
+  if (item.link == null) return "";
   p = item.link.indexOf("//");
   protocol = "";
   host = "";