=== modified file 'src/docbkx/en/dhis2_user_man_web_api.xml'
--- src/docbkx/en/dhis2_user_man_web_api.xml	2013-03-15 17:14:25 +0000
+++ src/docbkx/en/dhis2_user_man_web_api.xml	2013-03-19 17:59:49 +0000
@@ -1356,11 +1356,17 @@
     ], 
     "height": 4, 
     "metaData": {
-        "2012Q1": "Jan to Mar 2012", 
-        "2012Q2": "Apr to Jun 2012", 
-        "FbKK4ofIv5R": "Measles Coverage <1 y", 
-        "ImspTQPwCqd": "Sierra Leone", 
-        "eTDtyyaSA7f": "Fully Immunized Coverage"
+        "periods": [
+            "2012Q1",
+            "2012Q2"
+        ],
+        "names": {
+            "2012Q1": "Jan to Mar 2012",
+            "2012Q2": "Apr to Jun 2012",
+            "FbKK4ofIv5R": "Measles Coverage <1 y",
+            "ImspTQPwCqd": "Sierra Leone",
+            "eTDtyyaSA7f": "Fully Immunized Coverage"
+        }
     }, 
     "rows": [
         [