diff --git a/addons/web/common/xml2json.py b/addons/web/common/xml2json.py
index ab134b09786..df3aad67fa5 100644
--- a/addons/web/common/xml2json.py
+++ b/addons/web/common/xml2json.py
@@ -3,38 +3,24 @@
 # New BSD Licensed
 #
 # URL: http://code.google.com/p/xml2json-direct/
-import simplejson
-from xml.etree import ElementTree
 
-class Xml2Json(object):
-    @staticmethod
-    def convert_to_json(s):
-        return simplejson.dumps(
-            Xml2Json.convert_to_structure(s), sort_keys=True, indent=4)
-
-    @staticmethod
-    def convert_to_structure(s):
-        root = ElementTree.fromstring(s)
-        return Xml2Json.convert_element(root)
-
-    @staticmethod
-    def convert_element(el, preserve_whitespaces=False):
-        res = {}
-        if el.tag[0] == "{":
-            ns, name = el.tag.rsplit("}", 1)
-            res["tag"] = name
-            res["namespace"] = ns[1:]
-        else:
-            res["tag"] = el.tag
-        res["attrs"] = {}
-        for k, v in el.items():
-            res["attrs"][k] = v
-        kids = []
-        if el.text and (preserve_whitespaces or el.text.strip() != ''):
-            kids.append(el.text)
-        for kid in el:
-            kids.append(Xml2Json.convert_element(kid, preserve_whitespaces))
-            if kid.tail and (preserve_whitespaces or kid.tail.strip() != ''):
-                kids.append(kid.tail)
-        res["children"] = kids
-        return res
+def from_elementtree(el, preserve_whitespaces=False):
+    res = {}
+    if el.tag[0] == "{":
+        ns, name = el.tag.rsplit("}", 1)
+        res["tag"] = name
+        res["namespace"] = ns[1:]
+    else:
+        res["tag"] = el.tag
+    res["attrs"] = {}
+    for k, v in el.items():
+        res["attrs"][k] = v
+    kids = []
+    if el.text and (preserve_whitespaces or el.text.strip() != ''):
+        kids.append(el.text)
+    for kid in el:
+        kids.append(from_elementtree(kid, preserve_whitespaces))
+        if kid.tail and (preserve_whitespaces or kid.tail.strip() != ''):
+            kids.append(kid.tail)
+    res["children"] = kids
+    return res
diff --git a/addons/web/controllers/main.py b/addons/web/controllers/main.py
index 191f184da5b..7b2ad5b311c 100644
--- a/addons/web/controllers/main.py
+++ b/addons/web/controllers/main.py
@@ -933,7 +933,7 @@ class View(openerpweb.Controller):
             xml = self.transform_view(arch, session, evaluation_context)
         else:
             xml = ElementTree.fromstring(arch)
-        fvg['arch'] = web.common.xml2json.Xml2Json.convert_element(xml, preserve_whitespaces)
+        fvg['arch'] = web.common.xml2json.from_elementtree(xml, preserve_whitespaces)
 
         for field in fvg['fields'].itervalues():
             if field.get('views'):