diff --git a/addons/base_graph/static/src/js/graph.js b/addons/base_graph/static/src/js/graph.js
index 0c0f9deb629..edf3809d6f1 100644
--- a/addons/base_graph/static/src/js/graph.js
+++ b/addons/base_graph/static/src/js/graph.js
@@ -3,6 +3,15 @@
  *---------------------------------------------------------*/
 
 openerp.base_graph = function (openerp) {
+var COLOR_PALETTE = [
+    '#cc99ff', '#ccccff', '#48D1CC', '#CFD784', '#8B7B8B', '#75507b',
+    '#b0008c', '#ff0000', '#ff8e00', '#9000ff', '#0078ff', '#00ff00',
+    '#e6ff00', '#ffff00', '#905000', '#9b0000', '#840067', '#9abe00',
+    '#ffc900', '#510090', '#0000c9', '#009b00', '#75507b', '#3465a4',
+    '#73d216', '#c17d11', '#edd400', '#fcaf3e', '#ef2929', '#ff00c9',
+    '#ad7fa8', '#729fcf', '#8ae234', '#e9b96e', '#fce94f', '#f57900',
+    '#cc0000', '#d400a8'];
+
 QWeb.add_template('/base_graph/static/src/xml/base_graph.xml');
 openerp.base.views.add('graph', 'openerp.base_graph.GraphView');
 openerp.base_graph.GraphView = openerp.base.Controller.extend({
@@ -25,7 +34,6 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
         this.rpc("/base_graph/graphview/load", {"model": this.model, "view_id": this.view_id}, this.on_loaded);
     },
     on_loaded: function(data) {
-        var self = this;
         this.all_fields = data.all_fields;
         this.fields_view = data.fields_view;
         this.name = this.fields_view.name || this.fields_view.arch.attrs.string;
@@ -39,17 +47,18 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
         this.group_field = '';
         this.orientation = this.fields_view.arch.attrs.orientation || '';
 
-        for(fld in this.fields_view.arch.children) {
-            if (this.fields_view.arch.children[fld].attrs.operator) {
-                this.operator.push(this.fields_view.arch.children[fld].attrs.name);
+        _.each(this.fields_view.arch.children, function (field) {
+            if (field.attrs.operator) {
+                this.operator.push(field.attrs.name);
             }
-            else if (this.fields_view.arch.children[fld].attrs.group) {
-                this.group_field = this.fields_view.arch.children[fld].attrs.name;
+            else if (field.attrs.group) {
+                this.group_field = field.attrs.name;
             }
             else {
-                this.chart_info_fields.push(this.fields_view.arch.children[fld].attrs.name);
+                this.chart_info_fields.push(field.attrs.name);
             }
-        }
+        }, this);
+
         this.operator_field = this.operator[0];
         if(this.operator.length > 1){
             this.operator_field_one = this.operator[1];
@@ -60,7 +69,7 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
         this.chart_info = this.chart_info_fields[0];
         this.x_title = this.fields[this.chart_info_fields[0]]['string'];
         this.y_title = this.fields[this.operator_field]['string'];
-        self.load_chart();
+        this.load_chart();
     },
 
     load_chart: function(data) {
@@ -80,75 +89,62 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
         }
     },
 
-    schedule_chart: function(result) {
+    schedule_chart: function(results) {
         this.$element.html(QWeb.render("GraphView", {"fields_view": this.fields_view, "chart": this.chart,'view_id': this.view_id}));
-        this.opration_fld = {};
-        if (result.length){
-            for(res in result) {
-                for(fld in result[res]) {
-                    if (typeof result[res][fld] == 'object') {
-                        result[res][fld] = result[res][fld][result[res][fld].length - 1];
-                    }
-                    if (typeof result[res][fld] == 'string'){
-                        if (this.all_fields[fld]['selection']){
-                            for (i in this.all_fields[fld]['selection']){
-                                if(result[res][fld] == this.all_fields[fld]['selection'][i][0]){
-                                   result[res][fld] = this.all_fields[fld]['selection'][i];
-                                }
-                            }
+        if (!results.length) {
+            return;
+        }
+        _.each(results, function (result) {
+            _.each(result, function (field_value, field_name) {
+                if (typeof field_value == 'object') {
+                    result[field_name] = field_value[field_value.length - 1];
+                }
+                if (typeof field_value == 'string') {
+                    var choices = this.all_fields[field_name]['selection'];
+                    _.each(choices, function (choice) {
+                        if (field_value == choice[0]) {
+                            result[field_name] = choice;
                         }
-                    }
+                    });
+                }
+            }, this);
+        }, this);
+
+        var graph_data = {};
+        _.each(results, function (result) {
+            var column_key = result[this.chart_info_fields] + "_" + result[this.group_field];
+            var column_descriptor = {};
+            if (graph_data[column_key] == undefined) {
+                column_descriptor[this.operator_field] = result[this.operator_field];
+                if (this.operator.length > 1) {
+                    column_descriptor[this.operator_field_one] = result[this.operator_field_one];
+                }
+                column_descriptor[this.chart_info_fields] = result[this.chart_info_fields];
+                if (this.group_field) {
+                    column_descriptor[this.group_field] = (typeof result[this.group_field] == 'object') ? result[this.group_field][1] : result[this.group_field];
+                }
+            } else {
+                column_descriptor = graph_data[column_key];
+                column_descriptor[this.operator_field] += result[this.operator_field];
+                if (this.operator.length > 1) {
+                    column_descriptor[this.operator_field_one] += result[this.operator_field_one];
                 }
             }
+            graph_data[column_key] = column_descriptor;
+        }, this);
 
-            for (i in result){
-                var gen_key = result[i][this.chart_info_fields]+"_"+result[i][this.group_field];
-                if (this.opration_fld[gen_key] == undefined){
-                    var map_val = {}
-                    map_val[this.operator_field] = result[i][this.operator_field];
-                    if (this.operator.length > 1){
-                        map_val[this.operator_field_one] = result[i][this.operator_field_one];
-                    }
-                    map_val[this.chart_info_fields] = result[i][this.chart_info_fields];
-                    if (this.group_field){
-                        map_val[this.group_field] = (typeof result[i][this.group_field] == 'object')?result[i][this.group_field][1]:result[i][this.group_field];
-                    }
-                    this.opration_fld[gen_key] = map_val;
-                }else{
-                    map_val = this.opration_fld[gen_key];
-                    map_val[this.operator_field] = map_val[this.operator_field] + result[i][this.operator_field];
-                    if (this.operator.length > 1){
-                        map_val[this.operator_field_one] = map_val[this.operator_field_one] + result[i][this.operator_field_one];
-                    }
-                    this.opration_fld[gen_key] = map_val;
-                }
-            }
-            result = []
-            for (i in this.opration_fld){
-                result.push(this.opration_fld[i]);
-            }
-
-            if(this.chart == 'bar') {
-                return this.schedule_bar(result);
-            } else if(this.chart == "pie") {
-                return this.schedule_pie(result);
-            }
+        if (this.chart == 'bar') {
+            return this.schedule_bar(_.values(graph_data));
+        } else if (this.chart == "pie") {
+            return this.schedule_pie(_.values(graph_data));
         }
     },
 
-    schedule_bar: function(result) {
+    schedule_bar: function(results) {
         var self = this;
         var view_chart = '';
-        var xystr = {};
-        var xyname = {};
-        var res = [];
-        this.group_list = [];
-        var newkey = '';
-
-        var COLOR_PALETTE = ['#cc99ff', '#ccccff', '#48D1CC', '#CFD784', '#8B7B8B', '#75507b', '#b0008c', '#ff0000', '#ff8e00', '#9000ff', '#0078ff', '#00ff00', '#e6ff00', '#ffff00',
-                     '#905000', '#9b0000', '#840067', '#9abe00', '#ffc900', '#510090', '#0000c9', '#009b00',
-                     '#75507b', '#3465a4', '#73d216', '#c17d11', '#edd400', '#fcaf3e', '#ef2929', '#ff00c9',
-                     '#ad7fa8', '#729fcf', '#8ae234', '#e9b96e', '#fce94f', '#f57900', '#cc0000', '#d400a8'];
+        var group_list = [];
+        var newkey = '', newkey_one;
 
         if(self.group_field && (this.operator.length <= 1)){
             view_chart = self.orientation == 'horizontal'? 'stackedBarH' : 'stackedBar';
@@ -156,90 +152,84 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
             view_chart = self.orientation == 'horizontal'? 'barH' : 'bar';
         }
 
-        for (i in result){
-            if (self.group_field && (this.operator.length <= 1)){
-                newkey =result[i][self.group_field].split(' ').join('_');
-            }else{
+        _.each(results, function (result) {
+            if (self.group_field && (this.operator.length <= 1)) {
+                newkey = result[self.group_field].split(' ').join('_');
+            } else {
                 newkey = "val";
             }
 
-            if (jQuery.inArray(newkey, self.group_list) == -1){
-                self.group_list.push(newkey);
-                if(this.operator.length > 1){
-                    var newkey_one = "val1";
-                    self.group_list.push(newkey_one);
-                }
+            if (_.contains(group_list, newkey)) {
+                return;
             }
-        }
+            group_list.push(newkey);
+            if (this.operator.length > 1) {
+                newkey_one = "val1";
+                group_list.push(newkey_one);
+            }
+        }, this);
 
-        for (i in result){
-            var xystring = result[i][self.chart_info_fields];
+        var abscissa_data = {};
+        _.each(results, function (result) {
+            var label = result[self.chart_info_fields],
+              section = {};
             if (self.group_field && (self.operator.length <= 1)){
-                newkey =result[i][self.group_field].split(' ').join('_');
+                newkey = result[self.group_field].split(' ').join('_');
             }else{
                 newkey = "val";
             }
-            if (xystr[xystring] == undefined){
-                xyname = {};
-                xyname[self.chart_info_fields] = xystring;
-                for (j in self.group_list){
-                    xyname[self.group_list[j]] = 0.0001;
-                }
-                xyname[newkey] = result[i][self.operator_field];
-                if (self.operator.length > 1){
-                    xyname[newkey_one] = result[i][self.operator_field_one];
-                }
-                xystr[xystring] = xyname;
+            if (abscissa_data[label] == undefined){
+                section[self.chart_info_fields] = label;
+                _.each(group_list, function (group) {
+                    section[group] = 0.0001;
+                });
+            } else {
+                section = abscissa_data[label];
             }
-            else{
-                xyname = {};
-                xyname = xystr[xystring];
-                xyname[newkey] = result[i][self.operator_field];
-                if (self.operator.length > 1){
-                    xyname[newkey_one] = result[i][self.operator_field_one];
-                }
-                xystr[xystring] = xyname;
+            section[newkey] = result[self.operator_field];
+            if (self.operator.length > 1){
+                section[newkey_one] = result[self.operator_field_one];
             }
-        }
-        for (i in xystr){
-            res.push(xystr[i]);
-        }
+            abscissa_data[label] = section;
+        });
 
         //for legend color
-        var grp_color = [];
-        for (i in self.group_list){
-            var legend = {};
-            if (self.group_list[i] == "val"){
+        var grp_color = _.map(group_list, function (group_legend, index) {
+            var legend = {color: COLOR_PALETTE[index]};
+
+            if (group_legend == "val"){
                 legend['text'] = self.fields[self.operator_field]['string']
-            }else if(self.group_list[i] == "val1"){
+            }else if(group_legend == "val1"){
                 legend['text'] = self.fields[self.operator_field_one]['string']
             }else{
-                legend['text'] = self.group_list[i];
+                legend['text'] = group_legend;
             }
-            legend['color'] = COLOR_PALETTE[i];
-            grp_color.push(legend);
-        }
+            return legend;
+        });
 
         //for axis's value and title
-        var temp_ax = {};
-        var oth_ax = {};
-        temp_ax['template'] = self.chart_info_fields;
-        temp_ax['title'] = "<b>"+self.x_title+"</b>" ;
-        oth_ax['lines'] = true;
-        oth_ax['title'] = "<b>"+self.y_title+"</b>";
+        var abscissa_description = {
+            template: self.chart_info_fields,
+            title: "<b>"+self.x_title+"</b>"
+        };
+        var ordinate_description = {
+            lines: true,
+            title: "<b>"+self.y_title+"</b>"
+        };
 
+        var x_axis, y_axis;
         if (self.orientation == 'horizontal'){
-             var x_ax = oth_ax;
-             var y_ax = temp_ax;
+             x_axis = ordinate_description;
+             y_axis = abscissa_description;
         }else{
-             var x_ax = temp_ax;
-             var y_ax = oth_ax;
+             x_axis = abscissa_description;
+             y_axis = ordinate_description;
         }
 
         var bar_chart = new dhtmlxchartChart({
             view: view_chart,
             container: self.view_id+"-barchart",
-            value:"#"+self.group_list[0]+"#",
+            value:"#"+group_list[0]+"#",
             gradient: "3d",
             border: false,
             width: 1024,
@@ -248,29 +238,29 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
             origin:0,
             xAxis:{
                 template:function(obj){
-                    if(x_ax['template']){
-                        var val = obj[x_ax['template']];
-                        val = (typeof val == 'object')?val[1]:(val==false?'Undefined':val);
+                    if(x_axis['template']){
+                        var val = obj[x_axis['template']];
+                        val = (typeof val == 'object')?val[1]:(!val?'Undefined':val);
                         return val;
                     }else{
                         return obj;
                     }
                 },
-                title:x_ax['title'],
-                lines:x_ax['lines']
+                title:x_axis['title'],
+                lines:x_axis['lines']
             },
             yAxis:{
                 template:function(obj){
-                    if(y_ax['template']){
-                        var vals = obj[y_ax['template']];
-                        vals = (typeof vals == 'object')?vals[1]:(vals==false?'Undefined':vals);
+                    if(y_axis['template']){
+                        var vals = obj[y_axis['template']];
+                        vals = (typeof vals == 'object')?vals[1]:(!vals?'Undefined':vals);
                         return vals;
                     }else{
                         return obj;
                     }
                 },
-                title:y_ax['title'],
-                lines: y_ax['lines']
+                title:y_axis['title'],
+                lines: y_axis['lines']
             },
             padding: {
                 left: 75
@@ -283,19 +273,18 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
                 marker:{
                     type:"round",
                     width:12
-                },
+                }
             }
         });
-        for (var i = 1; i<self.group_list.length;i++){
+        for (var m = 1; m<group_list.length;m++){
             bar_chart.addSeries({
-                value: "#"+self.group_list[i]+"#",
-                color: grp_color[i]['color']
+                value: "#"+group_list[m]+"#",
+                color: grp_color[m]['color']
             });
         }
-        bar_chart.parse(res,"json");
+        bar_chart.parse(_.values(abscissa_data), "json");
         bar_chart.attachEvent("onItemClick", function(id) {
-            var id = bar_chart.get(id);
-            self.open_list_view(id);
+            self.open_list_view(bar_chart.get(id));
         });
     },
     schedule_pie: function(result) {
@@ -330,17 +319,14 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
         });
         chart.parse(result,"json");
         chart.attachEvent("onItemClick", function(id) {
-            var id = chart.get(id);
-            self.open_list_view(id);
+            self.open_list_view(chart.get(id));
         });
     },
     open_list_view : function (id){
         var self = this;
-        var id = id[self.chart_info_fields];
+        id = id[self.chart_info_fields];
         if (typeof id == 'object'){
             id = id[0];
-        }else{
-            id = id;
         }
         if(this.view_manager.action.context){
            this.view_manager.action.context = {};
@@ -373,7 +359,7 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
                 self.load_chart(response);
             });
         });
-    },
+    }
 
 });
 
@@ -381,4 +367,4 @@ openerp.base_graph.GraphView = openerp.base.Controller.extend({
 
 };
 
-// vim:et fdc=0 fdl=0:
\ No newline at end of file
+// vim:et fdc=0 fdl=0:
diff --git a/doc/source/project.rst b/doc/source/project.rst
index faa15da2163..aa465aa3f9f 100644
--- a/doc/source/project.rst
+++ b/doc/source/project.rst
@@ -16,6 +16,158 @@ Source code repository
 Merge proposals
 +++++++++++++++
 
+Coding issues and coding conventions
+++++++++++++++++++++++++++++++++++++
+
+Javascript coding
+~~~~~~~~~~~~~~~~~
+
+These are a number of guidelines for javascript code. More than coding
+conventions, these are warnings against potentially harmful or sub-par
+constructs.
+
+Ideally, you should be able to configure your editor or IDE to warn you against
+these kinds of issues.
+
+Use ``var`` for *all* declarations
+**********************************
+
+In javascript (as opposed to Python), assigning to a variable which does not
+already exist and is not explicitly declared (via ``var``) will implicitly
+create a global variable. This is bad for a number of reasons:
+
+* It leaks information outside function scopes
+* It keeps memory of previous run, with potentially buggy behaviors
+* It may conflict with other functions with the same issue
+* It makes code harder to statically check (via e.g. IDE inspectors)
+
+.. note::
+    It is perfectly possible to use ``var`` in ``for`` loops:
+
+    .. code-block:: javascript
+
+        for (var i = 0; i < some_array.length; ++i) {
+            // code here
+        }
+
+    this is not an issue
+
+All local *and global* variables should be declared via ``var``.
+
+.. note:: generally speaking, you should not need globals in OpenERP Web: you
+          can just declare a variable local to your top-level function. This
+          way, if your widget/addon is instantiated several times on the same
+          page (because it's used in embedded mode) each instance will have its
+          own internal but global-to-its-objects data.
+
+Do not leave trailing commas in object literals
+***********************************************
+
+While it is legal to leave trailing commas in Python dictionaries, e.g.
+
+.. code-block:: python
+
+    foo = {
+        'a': 1,
+        'b': 2,
+    }
+
+and it's valid in ECMAScript 5 and most browsers support it in Javascript, you
+should *never* use trailing commas in Javascript object literals:
+
+* Internet Explorer does *not* support trailing commas (at least until and
+  including Internet Explorer 8), and trailing comma will cause hard-to-debug
+  errors in it
+
+* JSON does not accept trailing comma (it is a syntax error), and using them
+  in object literals puts you at risks of using them in literal JSON strings
+  as well (though there are few reasons to write JSON by hand)
+
+*Never* use ``for … in`` to iterate on arrays
+*********************************************
+
+:ref:`Iterating over an object with for…in is a bit tricky already
+<for-in-iteration>`, it is far more complex than in Python (where it Just
+Works™) due to the interaction of various Javascript features, but to iterate
+on arrays it becomes downright deadly and errorneous: ``for…in`` really
+iterates over an *object*'s *properties*.
+
+With an array, this has the following consequences:
+
+* It does not necessarily iterate in numerical order, nor does it iterate in
+  any kind of set order. The order is implementation-dependent and may vary
+  from one run to the next depending on a number of reasons and implementation
+  details.
+* If properties are added to an array, to ``Array.prototype`` or to
+  ``Object.prototype`` (the latter two should not happen in well-behaved
+  javascript code, but you never know...) those properties *will* be iterated
+  over by ``for…in``. While ``Object.hasOwnProperty`` will guard against
+  iterating prototype properties, they will not guard against properties set
+  on the array instance itself (as memoizers for instance).
+
+  Note that this includes setting negative keys on arrays.
+
+For this reason, ``for…in`` should **never** be used on array objects. Instead,
+you should use either a normal ``for`` or (even better, unless you have
+profiled the code and found a hotspot) one of Underscore's array iteration
+methods (`_.each`_, `_.map`_, `_.filter`_, etc...).
+
+Underscore is guaranteed to be bundled and available in OpenERP Web scopes.
+
+.. _for-in-iteration:
+
+Use ``hasOwnProperty`` when iterating on an object with ``for … in``
+********************************************************************
+
+``for…in`` is Javascript's built-in facility for iterating over and object's
+properties.
+
+`It is also fairly tricky to use`_: it iterates over *all* non-builtin
+properties of your objects [#]_, which includes methods of an object's class.
+
+As a result, when iterating over an object with ``for…in`` the first line of
+the body *should* generally be a call to `Object.hasOwnProperty`_. This call
+will check whether the property was set directly on the object or comes from
+the object's class:
+
+.. code-block:: javascript
+
+    for(var key in ob) {
+        if (!ob.hasOwnProperty(key)) {
+            // comes from ob's class
+            continue;
+        }
+        // do stuff with key
+    }
+
+Since properties can be added directly to e.g. ``Object.prototype`` (even
+though it's usually considered bad style), you should not assume you ever know
+which properties ``for…in`` is going to iterate over.
+
+An alternative is to use Underscore's iteration methods, which generally work
+over objects as well as arrays:
+
+Instead of
+
+.. code-block:: javascript
+
+    for (var key in ob) {
+        if (!ob.hasOwnProperty(key)) { continue; }
+        var value = ob[key];
+        // Do stuff with key and value
+    }
+
+you could write:
+
+.. code-block:: javascript
+
+    _.each(ob, function (value, key) {
+        // do stuff with key and value
+    });
+
+and not worry about the details of the iteration: underscore should do the
+right thing for you on its own [#]_.
+
 Writing documentation
 +++++++++++++++++++++
 
@@ -44,14 +196,18 @@ RST, using Sphinx's `Python domain`_ [#]_:
   docstring, using Sphinx's `info fields`_
 
   For parameters types, built-in and stdlib types should be using the
-  combined syntax::
+  combined syntax:
+
+  .. code-block:: restructuredtext
 
       :param dict foo: what the purpose of foo is
 
   unless a more extensive explanation needs to be given (e.g. the
   specification that the input should be a list of 3-tuple needs to
   use ``:type:`` even though all types involved are built-ins). Any
-  other type should be specified in full using the ``:type:`` field::
+  other type should be specified in full using the ``:type:`` field
+
+  .. code-block:: restructuredtext
 
       :param foo: what the purpose of foo is
       :type foo: some.addon.Class
@@ -87,12 +243,16 @@ when writing javascript API documentation:
   are not documented, or JsDoc will not understand what they are and
   will not generate documentation for their content.
 
-  As a result, the bare minimum for a namespace is::
+  As a result, the bare minimum for a namespace is:
+
+  .. code-block:: javascript
 
       /** @namespace */
       foo.bar.baz = {};
 
-  while for a class it is::
+  while for a class it is:
+
+  .. code-block:: javascript
 
       /** @class */
       foo.bar.baz.Qux = [...]
@@ -189,7 +349,6 @@ with the descriptions and irrelevant atttributes stripped):
 
 .. code-block:: javascript
 
-
     openerp.base.search.Widget = openerp.base.Controller.extend(
         /** @lends openerp.base.search.Widget# */{
         /**
@@ -220,6 +379,30 @@ Roadmap
 Release notes
 +++++++++++++
 
+.. [#] More precisely, it iterates over all *enumerable* properties. It just
+       happens that built-in properties (such as ``String.indexOf`` or
+       ``Object.toString``) are set to non-enumerable.
+
+       The enumerability of a property can be checked using
+       `Object.propertyIsEnumeable`_.
+
+       Before ECMAScript 5, it was not possible for user-defined properties
+       to be non-enumerable in a portable manner. ECMAScript 5 introduced
+       `Object.defineProperty`_ which lets user code create non-enumerable
+       properties (and more, read-only properties for instance, or implicit
+       getters and setters). However, support for these is not fully complete
+       at this point, and they are not being used in OpenERP Web code anyway.
+
+.. [#] While using underscore is generally the preferred method (simpler,
+       more reliable and easier to write than a *correct* ``for…in``
+       iteration), it is also probably slower (due to the overhead of
+       calling a bunch of functions).
+
+       As a result, if you profile some code and find out that an underscore
+       method adds unacceptable overhead in a tight loop, you may want to
+       replace it with a ``for…in`` (or a regular ``for`` statement for
+       arrays).
+
 .. [#] Because Python is the default domain, the ``py:`` markup prefix
        is optional and should be left out.
 
@@ -252,3 +435,17 @@ Release notes
     http://code.google.com/p/jsdoc-toolkit/
 .. _John Resig's Class implementation:
     http://ejohn.org/blog/simple-javascript-inheritance/
+.. _\_.each:
+    http://documentcloud.github.com/underscore/#each
+.. _\_.map:
+    http://documentcloud.github.com/underscore/#map
+.. _\_.filter:
+    http://documentcloud.github.com/underscore/#select
+.. _It is also fairly tricky to use:
+    https://developer.mozilla.org/en/JavaScript/Reference/Statements/for...in#Description
+.. _Object.propertyIsEnumeable:
+    https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object/propertyIsEnumerable
+.. _Object.defineProperty:
+    https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object/defineProperty
+.. _Object.hasOwnProperty:
+    https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object/hasOwnProperty