diff --git a/web/ons-demo/js/constants.js b/web/ons-demo/js/constants.js
new file mode 100644
index 0000000..7431bba
--- /dev/null
+++ b/web/ons-demo/js/constants.js
@@ -0,0 +1,21 @@
+/***************************************************************************************************
+timeout used by controller functions. after the timeout expires the "pending" action
+is removed and the topology view is whatever is reported by the API
+***************************************************************************************************/
+var pendingTimeout = 30000;
+
+/***************************************************************************************************
+CSS names for the pallette of colors used by the topology view
+***************************************************************************************************/
+var colors = [
+	'color1',
+	'color2',
+	'color3',
+	'color4',
+	'color7',
+	'color8',
+	'color9',
+//	'color11',
+	'color12'
+];
+colors.reverse();
\ No newline at end of file