diff --git a/stepmania/Themes/default/Scripts/Enum.lua b/stepmania/Themes/default/Scripts/Enum.lua
new file mode 100644
index 0000000000..41cc74a6c0
--- /dev/null
+++ b/stepmania/Themes/default/Scripts/Enum.lua
@@ -0,0 +1,38 @@
+function Enum:Compare( e1, e2 )
+	local Reverse = self:Reverse();
+	local Value1 = Reverse[e1];
+	local Value2 = Reverse[e2];
+
+	assert( Value1, tostring(e1) .. " is not an enum of type " .. self:GetName() );
+	assert( Value2, tostring(e2) .. " is not an enum of type " .. self:GetName() );
+
+	-- Nil enums correspond to "invalid".  These compare greater
+	-- than any valid enum value, to line up with the equivalent
+	-- C++ code.
+	if not e1 then Value1 = 99999999 end;
+	if not e2 then Value2 = 99999999 end;
+	return Value1 - Value2;
+end
+
+-- (c) 2006 Glenn Maynard
+-- All rights reserved.
+-- 
+-- Permission is hereby granted, free of charge, to any person obtaining a
+-- copy of this software and associated documentation files (the
+-- "Software"), to deal in the Software without restriction, including
+-- without limitation the rights to use, copy, modify, merge, publish,
+-- distribute, and/or sell copies of the Software, and to permit persons to
+-- whom the Software is furnished to do so, provided that the above
+-- copyright notice(s) and this permission notice appear in all copies of
+-- the Software and that both the above copyright notice(s) and this
+-- permission notice appear in supporting documentation.
+-- 
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+-- THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+-- INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+-- OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+-- OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+-- PERFORMANCE OF THIS SOFTWARE.