docs: fix search suggestions and other script bugs for offline docs

Change-Id: I3f9404695966b99be1c8ed36249788e448399296
diff --git a/tools/droiddoc/templates-sdk/assets/js/search_autocomplete.js b/tools/droiddoc/templates-sdk/assets/js/search_autocomplete.js
index 1838ccb..6b1e525 100644
--- a/tools/droiddoc/templates-sdk/assets/js/search_autocomplete.js
+++ b/tools/droiddoc/templates-sdk/assets/js/search_autocomplete.js
@@ -473,7 +473,7 @@
 
       // forcefully regain key-up event control (previously jacked by search api)
       $("#search_autocomplete").keyup(function(event) {
-        return search_changed(event, false, '/');
+        return search_changed(event, false, toRoot);
       });
 
       // add event listeners to each tab so we can track the browser history