1 files changed, 14 insertions, 1 deletions
diff --git a/html/util.js b/html/util.js
index f678b4c..57626f2 100644
--- a/html/util.js
+++ b/html/util.js
@@ -47,4 +47,17 @@ Abcd.goHome = function() {
 		Abcd.context.home.renderInto(document.getElementById("body"));
 		Abcd.context.home.playTheme();
 	}
-};
-\ No newline at end of file
+};
+
+
+//--- Utilities
+
+// Change visibility of a set of controls
+Abcd.changeVisibility = function(object, items) {
+	for(var item in items) {
+		if (items[item])
+			object.$[item].show();
+		else
+			object.$[item].hide();
+	}
+}
+\ No newline at end of file