diff --git a/mindplot/src/main/javascript/DesignerKeyboard.js b/mindplot/src/main/javascript/DesignerKeyboard.js
index e914799b..712df716 100644
--- a/mindplot/src/main/javascript/DesignerKeyboard.js
+++ b/mindplot/src/main/javascript/DesignerKeyboard.js
@@ -236,7 +236,7 @@ mindplot.DesignerKeyboard = new Class({
                         }
                     }
                 } else {
-                    var centralTopic = designer.getCentralTopic();
+                    var centralTopic = model.getCentralTopic();
                     this._goToNode(designer, centralTopic);
                 }
             }.bind(this),
@@ -256,7 +256,7 @@ mindplot.DesignerKeyboard = new Class({
                         }
                     }
                 } else {
-                    var centralTopic = designer.getCentralTopic();
+                    var centralTopic = model.getCentralTopic();
                     this._goToNode(designer, centralTopic);
                 }
             }.bind(this),
@@ -268,7 +268,7 @@ mindplot.DesignerKeyboard = new Class({
                         this._goToBrother(designer, node, 'UP');
                     }
                 } else {
-                    var centralTopic = designer.getCentralTopic();
+                    var centralTopic = model.getCentralTopic();
                     this._goToNode(designer, centralTopic);
                 }
             }.bind(this),
@@ -280,7 +280,7 @@ mindplot.DesignerKeyboard = new Class({
                         this._goToBrother(designer, node, 'DOWN');
                     }
                 } else {
-                    var centralTopic = designer.getCentralTopic();
+                    var centralTopic = model.getCentralTopic();
                     this._goToNode(designer, centralTopic);
                 }
             }.bind(this)
@@ -331,7 +331,7 @@ mindplot.DesignerKeyboard = new Class({
     },
 
     _goToBrother:function (designer, node, direction) {
-        var brothers = node._parent.getChildren();
+        var brothers = node.getParent().getChildren();
         var target = node;
         var y = node.getPosition().y;
         var x = node.getPosition().x;
@@ -394,8 +394,10 @@ mindplot.DesignerKeyboard = new Class({
     },
 
     _goToParent:function (designer, node) {
-        var parent = node._parent;
-        this._goToNode(designer, parent);
+        var parent = node.getParent();
+        if (parent) {
+            this._goToNode(designer, parent);
+        }
     },
 
     _goToChild:function (designer, node) {
diff --git a/wise-webapp/src/main/webapp/WEB-INF/classes/messages_es.properties b/wise-webapp/src/main/webapp/WEB-INF/classes/messages_es.properties
index b8f7e515..82cff558 100644
--- a/wise-webapp/src/main/webapp/WEB-INF/classes/messages_es.properties
+++ b/wise-webapp/src/main/webapp/WEB-INF/classes/messages_es.properties
@@ -146,7 +146,7 @@ WHAT_IS_NEW=Novedades
 WHAT_IS_NEW_DETAILS=<ul><li>Nueva interfaz</li><li>Soporte de FreeMind 0.9</li><li>Soporte HTML 5.0</li><li>Soporte de Firefox 12</li></ul>
 THANKS_FOR_SIGN_UP=Graciar por registarse !
 SIGN_UP_CONFIRMATION_EMAIL=You will receive a confirmation message shortly from WiseMapping. This message will ask you to activate your             WiseMapping account.</br>Please select the link to activate and start creating and sharing maps.
-SIGN_UP_SUCCESS=Su cuenta a sido creada exitosamente,haga click <a href\="c/login">ac\u00e1</a> para ingresar y empezar a disfrutar de WiseMapping.
+SIGN_UP_SUCCESS=Su cuenta ha sido creada exitosamente,haga click <a href\="c/login">ac\u00e1</a> para ingresar y empezar a disfrutar de WiseMapping.
 ACCOUNT_DOES_NOT_EXISTS=El e-mail ingresado no pertenece a un usuario registrado o la cuenta no ha sido activada todav\u00eda.
 ACCOUNT_DOES_NOT_EXISTS_SUPPORT=Si el problema persiste, env\u00ede un e-mail a <a href\="mailto\:support@wisemapping.com">support@wisemapping.com </a>
 SENDING=Enviando ...