diff --git a/js/WikiStore.js b/js/WikiStore.js
index c4927e5055..e81458ba4c 100755
--- a/js/WikiStore.js
+++ b/js/WikiStore.js
@@ -95,6 +95,7 @@ WikiStore.prototype.forEachTiddler = function(/* [sortField,[excludeTag,]]callba
 };
 
 WikiStore.prototype.getTitles = function(sortField,excludeTag) {
+	sortField = sortField || "title";
 	var tiddlers = [];
 	this.forEachTiddler(sortField,excludeTag,function(title,tiddler) {
 		tiddlers.push(title);
@@ -102,6 +103,18 @@ WikiStore.prototype.getTitles = function(sortField,excludeTag) {
 	return tiddlers;
 };
 
+WikiStore.prototype.getMissingTitles = function() {
+	return [];
+};
+
+WikiStore.prototype.getOrphanTitles = function() {
+	return [];
+};
+
+WikiStore.prototype.getShadowTitles = function() {
+	return this.shadows ? this.shadows.getTitles() : [];
+};
+
 WikiStore.prototype.parseTiddler = function(title) {
 	var tiddler = this.getTiddler(title);
 	if(tiddler) {