- when there are no topics, the topics window is not shown

- othervise: close topics window by default
There will be more navigation in the future (i.e. update-time selection)
and the topics will be less important than the others, therefore
it is now hidden by default

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6310 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/yacysearch.html

@@ -55,6 +55,7 @@ $(function() {
 	$("#sidebar2").accordion({});
 	$("#sidebar2").accordion('activate', false);
 	$("#sidebar3").accordion({});
+	$("#sidebar3").accordion('activate', false);
 	$("#search").focus();
 });
 //]]>

htroot/yacysearchtrailer.java

@@ -106,7 +106,11 @@ public class yacysearchtrailer {
 
         // attach always the topics
         ArrayList<NavigatorEntry> topicNavigator = theSearch.getTopicNavigator(10);
-        if (topicNavigator == null) topicNavigator = new ArrayList<NavigatorEntry>(); 
+        if (topicNavigator == null || topicNavigator.size() == 0) {
+            topicNavigator = new ArrayList<NavigatorEntry>(); 
+            prop.put("nav-topics", "0");
+        } else {
+            prop.put("nav-topics", "1");
             int i = 0;
             NavigatorEntry e;
             Iterator<NavigatorEntry> iter = topicNavigator.iterator();
@@ -126,7 +130,7 @@ public class yacysearchtrailer {
                 }
             }
             prop.put("nav-topics_element", i);
-        prop.put("nav-topics", "1");
+        }
         
         serverProfiling.update("SEARCH", new ProfilingGraph.searchEvent(theQuery.id(true), SearchEvent.FINALIZATION + "-" + "bottomline", 0, 0), false);