diff --git a/src/as/com/threerings/io/Translations.as b/src/as/com/threerings/io/Translations.as
new file mode 100644
index 000000000..6132138bd
--- /dev/null
+++ b/src/as/com/threerings/io/Translations.as
@@ -0,0 +1,36 @@
+package com.threerings.io {
+
+import com.threerings.util.SimpleMap;
+
+/**
+ * Maintains a set of translations between actionscript class names
+ * and server (Java) class names.
+ */
+public class Translations
+{
+    public static function getToServer (asName :String) :String
+    {
+        var javaName :String = (_toServer.get(asName) as String);
+        return (javaName == null) ? asName : javaName;
+    }
+
+    public static function getFromServer (javaName :String) :String
+    {
+        var asName :String = (_fromServer.get(javaName) as String);
+        return (asName == null) ? javaName : asName;
+    }
+
+    public static function addTranslation (
+            asName :String, javaName :String) :void
+    {
+        _toServer.put(asName, javaName);
+        _fromServer.put(javaName, asName);
+    }
+
+    /** A mapping of actionscript names to java names. */
+    protected static var _toServer :SimpleMap = new SimpleMap();
+
+    /** A mapping of java names to actionscript names. */
+    protected static var _fromServer :SimpleMap = new SimpleMap();
+}
+}