show less navigation by default

htroot/yacysearchtrailer.java

@@ -103,7 +103,7 @@ public class yacysearchtrailer {
             prop.put("nav-namespace_activate", on(pos, neg, MAXLIMIT_NAV_LOW) ? 1 : 0);
             i--;
             prop.put("nav-namespace_element_" + i + "_nl", 0);
-            if (pos == 1 && neg == 0) prop.put("nav-namespace", 0); // this navigation is not usefull
+            if (pos == 1 && neg == 0) prop.put("nav-namespace", 0); // this navigation is not useful
         }
 
         // host navigators
@@ -142,7 +142,7 @@ public class yacysearchtrailer {
             prop.put("nav-domains_activate", on(pos, neg, MAXLIMIT_NAV_HIGH) ? 1 : 0);
             i--;
             prop.put("nav-domains_element_" + i + "_nl", 0);
-            if (pos == 1 && neg == 0) prop.put("nav-domains", 0); // this navigation is not usefull
+            if (pos == 1 && neg == 0) prop.put("nav-domains", 0); // this navigation is not useful
         }
 
         // author navigators
@@ -178,10 +178,10 @@ public class yacysearchtrailer {
                 i++;
             }
             prop.put("nav-authors_element", i);
-            prop.put("nav-authors_activate", on(pos, neg, MAXLIMIT_NAV_LOW) ? 1 : 0);
+            prop.put("nav-authors_activate", neg > 0 ? 1 : 0); // by default off
             i--;
             prop.put("nav-authors_element_" + i + "_nl", 0);
-            if (pos == 1 && neg == 0) prop.put("nav-authors", 0); // this navigation is not usefull
+            if (pos == 1 && neg == 0) prop.put("nav-authors", 0); // this navigation is not useful
         }
 
         // topics navigator
@@ -246,10 +246,10 @@ public class yacysearchtrailer {
                 i++;
             }
             prop.put("nav-protocols_element", i);
-            prop.put("nav-protocols_activate", on(pos, neg, MAXLIMIT_NAV_LOW) ? 1 : 0);
+            prop.put("nav-protocols_activate", neg > 0 ? 1 : 0); // by default off
             i--;
             prop.put("nav-protocols_element_" + i + "_nl", 0);
-            if (pos == 1 && neg == 0) prop.put("nav-protocols", 0); // this navigation is not usefull
+            if (pos == 1 && neg == 0) prop.put("nav-protocols", 0); // this navigation is not useful
         }
 
         // filetype navigators
@@ -285,10 +285,10 @@ public class yacysearchtrailer {
                 i++;
             }
             prop.put("nav-filetypes_element", i);
-            prop.put("nav-filetypes_activate", on(pos, neg, MAXLIMIT_NAV_LOW) ? 1 : 0);
+            prop.put("nav-filetypes_activate", neg > 0 ? 1 : 0); // by default off
             i--;
             prop.put("nav-filetypes_element_" + i + "_nl", 0);
-            if (pos == 1 && neg == 0) prop.put("nav-filetypes", 0); // this navigation is not usefull
+            if (pos == 1 && neg == 0) prop.put("nav-filetypes", 0); // this navigation is not useful
         }
 
         // vocabulary navigators