diff --git a/core-js/src/main/javascript/Utils.js b/core-js/src/main/javascript/Utils.js
index c2830810..5c20f702 100644
--- a/core-js/src/main/javascript/Utils.js
+++ b/core-js/src/main/javascript/Utils.js
@@ -20,7 +20,7 @@ core.Utils =
 {
     isDefined: function(val)
     {
-        return val !== null && val !== undefined;
+        return val !== null && val !== undefined && typeof val !="undefined";
     },
     escapeInvalidTags: function (text)
     {
diff --git a/mindplot/src/main/javascript/MindmapDesigner.js b/mindplot/src/main/javascript/MindmapDesigner.js
index 536db1a2..0247419e 100644
--- a/mindplot/src/main/javascript/MindmapDesigner.js
+++ b/mindplot/src/main/javascript/MindmapDesigner.js
@@ -354,7 +354,7 @@ mindplot.MindmapDesigner.prototype.save = function(onSavedHandler, saveHistory)
     var persistantManager = mindplot.PersistanceManager;
     var mindmap = this._mindmap;
 
-    var properties = {zoom:this._zoom};
+    var properties = {zoom:this._zoom, layoutManager:this._layoutManager.getClassName()};
     persistantManager.save(mindmap, properties, onSavedHandler, saveHistory);
     this._fireEvent("save", {type:saveHistory});
 
@@ -461,7 +461,7 @@ mindplot.MindmapDesigner.prototype._nodeModelToNodeGraph = function(nodeModel, i
 
     var children = nodeModel.getChildren().slice();
 
-    children = this._layoutManager.prepareChildrenList(nodeGraph, children);
+    children = this._layoutManager.prepareNode(nodeGraph, children);
 
     for (var i = 0; i < children.length; i++)
     {
diff --git a/mindplot/src/main/javascript/XMLMindmapSerializer_Pela.js b/mindplot/src/main/javascript/XMLMindmapSerializer_Pela.js
index 96911e87..9982da2b 100644
--- a/mindplot/src/main/javascript/XMLMindmapSerializer_Pela.js
+++ b/mindplot/src/main/javascript/XMLMindmapSerializer_Pela.js
@@ -227,6 +227,7 @@ mindplot.XMLMindmapSerializer_Pela.prototype.loadFromDom = function(dom)
     // Is a wisemap?.
     core.assert(rootElem.tagName == mindplot.XMLMindmapSerializer_Pela.MAP_ROOT_NODE, "This seem not to be a map document.");
 
+    this._idsMap = new Hash();
     // Start the loading process ...
     var mindmap = new mindplot.Mindmap();
 
@@ -251,6 +252,7 @@ mindplot.XMLMindmapSerializer_Pela.prototype.loadFromDom = function(dom)
             }
         }
     }
+    this._idsMap=null;
     return mindmap;
 };
 
@@ -263,6 +265,12 @@ mindplot.XMLMindmapSerializer_Pela.prototype._deserializeNode = function(domElem
         id=parseInt(id);
     }
 
+    if(this._idsMap.hasKey(id)){
+        id=null;
+    }else{
+        this._idsMap.set(id,domElem);
+    }
+
     var topic = mindmap.createNode(type, id);
 
     var text = domElem.getAttribute('text');
@@ -272,7 +280,7 @@ mindplot.XMLMindmapSerializer_Pela.prototype._deserializeNode = function(domElem
 
     var order = domElem.getAttribute('order');
     if (order) {
-        topic.setOrder(order);
+        topic.setOrder(parseInt(order));
     }
 
     var shape = domElem.getAttribute('shape');
diff --git a/mindplot/src/main/javascript/layoutManagers/BaseLayoutManager.js b/mindplot/src/main/javascript/layoutManagers/BaseLayoutManager.js
index 871db08d..f86116c6 100644
--- a/mindplot/src/main/javascript/layoutManagers/BaseLayoutManager.js
+++ b/mindplot/src/main/javascript/layoutManagers/BaseLayoutManager.js
@@ -60,7 +60,7 @@ mindplot.layoutManagers.BaseLayoutManager = new Class({
     _createCentralTopicBoard:function(node){
         return new mindplot.layoutManagers.boards.Board(node, this);
     },
-    prepareChildrenList:function(node, children){
+    prepareNode:function(node, children){
 
     },
     addHelpers:function(node){
diff --git a/mindplot/src/main/javascript/layoutManagers/FreeMindLayoutManager.js b/mindplot/src/main/javascript/layoutManagers/FreeMindLayoutManager.js
index a9137eef..88cd58e5 100644
--- a/mindplot/src/main/javascript/layoutManagers/FreeMindLayoutManager.js
+++ b/mindplot/src/main/javascript/layoutManagers/FreeMindLayoutManager.js
@@ -24,13 +24,20 @@ mindplot.layoutManagers.FreeMindLayoutManager = mindplot.layoutManagers.BaseLayo
     _nodeShrinkEvent:function(node){
         this._updateBoard(node,[]);
     },
-    prepareChildrenList:function(node, children){
-        var result = children.sort(function(n1, n2){
-            if(n1.getPosition() && n2.getPosition())
-                return n1.getPosition().y>n2.getPosition().y;
-            else
-                return true;
-        });
+    prepareNode:function(node, children){
+        var layoutManagerName = editorProperties.layoutManager;
+        //if last layout used is this one
+        if(typeof layoutManagerName != "undefined" && layoutManagerName == this.getClassName()){
+            var result = children.sort(function(n1, n2){
+                if(n1.getPosition() && n2.getPosition())
+                    return n1.getPosition().y>n2.getPosition().y;
+                else
+                    return true;
+            });
+        } else {
+            delete node.getModel()._finalPosition;
+            result = children;
+        }
         return result;
     },
     registerListenersOnNode : function(topic)
diff --git a/mindplot/src/main/javascript/layoutManagers/OriginalLayoutManager.js b/mindplot/src/main/javascript/layoutManagers/OriginalLayoutManager.js
index 2eb72b88..c9b0bc9c 100644
--- a/mindplot/src/main/javascript/layoutManagers/OriginalLayoutManager.js
+++ b/mindplot/src/main/javascript/layoutManagers/OriginalLayoutManager.js
@@ -12,24 +12,34 @@ mindplot.layoutManagers.OriginalLayoutManager = mindplot.layoutManagers.BaseLayo
         // Add shapes to speed up the loading process ...
         mindplot.DragTopic.initialize(workSpace);
     },
-    prepareChildrenList:function(node, children){
+    prepareNode:function(node, children){
         // Sort children by order to solve adding order in for OriginalLayoutManager...
+        var nodesByOrder = new Hash();
+        var maxOrder =0;
         var result = [];
-        if (node.getTopicType()!=mindplot.NodeModel.CENTRAL_TOPIC_TYPE && children.length > 0)
+        if (children.length > 0)
         {
             for (var i = 0; i < children.length; i++)
             {
                 var child = children[i];
                 var order = child.getOrder();
-                if (order != null)
+                if (!core.Utils.isDefined(order))
                 {
-                    result[order] = child;
-                } else
-                {
-                    result.push(child);
+                    order = maxOrder++;
                 }
+
+                if(nodesByOrder.hasKey(order)){
+                    //duplicated order. Change order to next available.
+                    order = maxOrder++;
+                }else{
+                    nodesByOrder.set(order, child);
+                    if(order>maxOrder)
+                        maxOrder=order;
+                }
+                result[order] = child;
             }
         }
+        nodesByOrder=null;
         return result;
     },
     _nodeResizeEvent:function(node){