diff --git a/mindplot/src/main/javascript/widget/LinkEditor.js b/mindplot/src/main/javascript/widget/LinkEditor.js
index a37ff90f..0f1c9bb7 100644
--- a/mindplot/src/main/javascript/widget/LinkEditor.js
+++ b/mindplot/src/main/javascript/widget/LinkEditor.js
@@ -18,24 +18,24 @@
 
 mindplot.widget.LinkEditor = new Class({
     Extends:MooDialog,
-    initialize : function(model) {
+    initialize:function (model) {
         $assert(model, "model can not be null");
         var panel = this._buildPanel(model);
         this.parent({
             closeButton:true,
             destroyOnClose:true,
             title:'Link',
-            onInitialize: function(wrapper) {
+            onInitialize:function (wrapper) {
                 wrapper.setStyle('opacity', 0);
                 this.fx = new Fx.Morph(wrapper, {
-                    duration: 600,
-                    transition: Fx.Transitions.Bounce.easeOut
+                    duration:600,
+                    transition:Fx.Transitions.Bounce.easeOut
                 });
             },
 
-            onBeforeOpen: function() {
+            onBeforeOpen:function () {
                 this.overlay = new Overlay(this.options.inject, {
-                    duration: this.options.duration
+                    duration:this.options.duration
                 });
                 if (this.options.closeOnOverlayClick)
                     this.overlay.addEvent('click', this.close.bind(this));
@@ -43,18 +43,18 @@ mindplot.widget.LinkEditor = new Class({
                 this.overlay.open();
 
                 this.fx.start({
-                    'margin-top': [-200, -100],
-                    opacity: [0, 1]
-                }).chain(function() {
+                    'margin-top':[-200, -100],
+                    opacity:[0, 1]
+                }).chain(function () {
                     this.fireEvent('show');
                 }.bind(this));
             },
 
-            onBeforeClose: function() {
+            onBeforeClose:function () {
                 this.fx.start({
-                    'margin-top': [-100, 0],
-                    opacity: 0
-                }).chain(function() {
+                    'margin-top':[-100, 0],
+                    opacity:0
+                }).chain(function () {
                     this.fireEvent('hide');
                 }.bind(this));
                 this.overlay.destroy();
@@ -63,20 +63,20 @@ mindplot.widget.LinkEditor = new Class({
         this.setContent(panel);
     },
 
-    _buildPanel : function (model) {
+    _buildPanel:function (model) {
         var result = new Element('div');
-        var form = new Element('form', {'action': 'none', 'id':'linkFormId'});
+        var form = new Element('form', {'action':'none', 'id':'linkFormId'});
 
         // Add combo ...
         var select = new Element('select');
-        select.setStyles({margin: '5px'});
+        select.setStyles({margin:'5px'});
         new Element('option', {text:'URL'}).inject(select);
 //        new Element('option', {text:'Mail'}).inject(select);
         select.inject(form);
 
         // Add Input ...
         var input = new Element('input', {
-            placeholder: 'http://www.example.com/',
+            placeholder:'http://www.example.com/',
             type:Browser.ie ? 'text' : 'url', // IE workaround
             required:true,
             autofocus:'autofocus'
@@ -88,11 +88,13 @@ mindplot.widget.LinkEditor = new Class({
         input.inject(form);
 
         // Register submit event ...
-        form.addEvent('submit', function(event) {
+        form.addEvent('submit', function (event) {
             event.stopPropagation();
             event.preventDefault();
 
-            model.setValue(input.value);
+            if (input.value != null && input.value.trim() != "") {
+                model.setValue(input.value);
+            }
             this.close();
         }.bind(this));
 
@@ -100,17 +102,17 @@ mindplot.widget.LinkEditor = new Class({
         var buttonContainer = new Element('div').setStyles({paddingTop:5, textAlign:'center'});
 
         // Create accept button ...
-        var okButton = new Element('input', {type:'submit', value:'Accept','class':'btn-primary'});
+        var okButton = new Element('input', {type:'submit', value:'Accept', 'class':'btn-primary'});
         okButton.addClass('button');
         okButton.inject(buttonContainer);
 
         // Create remove button ...
         if ($defined(model.getValue())) {
-            var rmButton = new Element('input', {type:'button', value:'Remove','class':'btn-primary'});
+            var rmButton = new Element('input', {type:'button', value:'Remove', 'class':'btn-primary'});
             rmButton.setStyle('margin', '5px');
             rmButton.addClass('button');
             rmButton.inject(buttonContainer);
-            rmButton.addEvent('click', function(event) {
+            rmButton.addEvent('click', function (event) {
                 model.setValue(null);
                 event.stopPropagation();
                 this.close();
@@ -119,16 +121,16 @@ mindplot.widget.LinkEditor = new Class({
         }
 
         // Create cancel button ...
-        var cButton = new Element('input', {type:'button', value:'Cancel','class':'btn-secondary'});
+        var cButton = new Element('input', {type:'button', value:'Cancel', 'class':'btn-secondary'});
         cButton.setStyle('margin', '5px');
         cButton.addClass('button');
         cButton.inject(buttonContainer);
-        cButton.addEvent('click', function() {
+        cButton.addEvent('click', function () {
             this.close();
         }.bind(this));
         buttonContainer.inject(form);
 
-        result.addEvent('keydown', function(event) {
+        result.addEvent('keydown', function (event) {
             event.stopPropagation();
         });
 
@@ -136,8 +138,7 @@ mindplot.widget.LinkEditor = new Class({
         return result;
     },
 
-    show : function() {
+    show:function () {
         this.open();
     }
-
 });