--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core-javascript/core-javascript-work/solution-2-d.js	Tue Nov 01 08:58:38 2011 +0000
@@ -0,0 +1,23 @@
+// Rhino $ js -f library.js -f solution-2-d.js -
+
+var fields = {};
+
+fields.__init__ = function(keys){
+    this.keys = keys;
+};
+
+fields.copy_attributes = function(src, tgt){
+
+    var keys = this.keys;
+    var key;
+    var i;
+
+    for(i=0; i< keys.length; i++){
+        key = keys[i];
+        tgt[key] = src['get_' + key]();
+    };
+};
+
+var Fields = SimpleClass(fields);
+
+