Index: /CKEditor/trunk/_source/plugins/forms/dialogs/button.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/button.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/button.js	(revision 3744)
@@ -11,4 +11,5 @@
 		onShow : function()
 		{
+			delete this.button;
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 			if ( element && element.getName() == "input" )
@@ -17,5 +18,5 @@
 				if ( type == "button" || type == "reset" || type == "submit" )
 				{
-					this._element = element;
+					this.button = element;
 					this.setupContent( element );
 				}
@@ -25,5 +26,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.button,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/checkbox.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/checkbox.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/checkbox.js	(revision 3744)
@@ -11,9 +11,11 @@
 		onShow : function()
 		{
+			delete this.checkbox;
+
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 
 			if ( element && element.getAttribute( 'type' ) == "checkbox" )
 			{
-				this._element = element;
+				this.checkbox = element;
 				this.setupContent( element );
 			}
@@ -22,5 +24,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.checkbox,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/form.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/form.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/form.js	(revision 3744)
@@ -20,9 +20,11 @@
 		onShow : function()
 		{
+			delete this.form;
+
 			var element = this.getParentEditor().getSelection().getStartElement();
 			var form = element && element.getAscendant( 'form', true );
 			if ( form )
 			{
-				this._element = form;
+				this.form = form;
 				this.setupContent( form );
 			}
@@ -31,5 +33,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.form,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/hiddenfield.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/hiddenfield.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/hiddenfield.js	(revision 3744)
@@ -11,8 +11,10 @@
 		onShow : function()
 		{
+			delete this.hiddenField;
+
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 			if ( element && element.getName() == "input" && element.getAttribute( 'type' ) == "checkbox" )
 			{
-				this._element = element;
+				this.hiddenField = element;
 				this.setupContent( element );
 			}
@@ -21,5 +23,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.hiddenField,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/radio.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/radio.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/radio.js	(revision 3744)
@@ -11,8 +11,10 @@
 		onShow : function()
 		{
+			delete this.radioButton;
+
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 			if ( element && element.getName() == "input" && element.getAttribute( 'type' ) == "radio" )
 			{
-				this._element = element;
+				this.radioButton = element;
 				this.setupContent( element );
 			}
@@ -21,5 +23,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.radioButton,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/select.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/select.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/select.js	(revision 3744)
@@ -136,9 +136,10 @@
 		onShow : function()
 		{
+			delete this.selectBox;
 			this.setupContent( 'clear' );
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 			if ( element && element.getName() == "select" )
 			{
-				this._element = element;
+				this.selectBox = element;
 				this.setupContent( element.getName(), element );
 
@@ -152,5 +153,5 @@
 		{
 			var editor = this.getParentEditor(),
-				element = this._element,
+				element = this.selectBox,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/textarea.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/textarea.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/textarea.js	(revision 3744)
@@ -11,8 +11,10 @@
 		onShow : function()
 		{
+			delete this.textarea;
+
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 			if ( element && element.getName() == "textarea" )
 			{
-				this._element = element;
+				this.textarea = element;
 				this.setupContent( element );
 			}
@@ -21,5 +23,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.textarea,
 				isInsertMode = !element;
 
Index: /CKEditor/trunk/_source/plugins/forms/dialogs/textfield.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/textfield.js	(revision 3743)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/textfield.js	(revision 3744)
@@ -24,9 +24,11 @@
 		onShow : function()
 		{
+			delete this.textField;
+
 			var element = this.getParentEditor().getSelection().getSelectedElement();
 			if ( element && element.getName() == "input" &&
 					( acceptedTypes[ element.getAttribute( 'type' ) ] || !element.getAttribute( 'type' ) ) )
 			{
-				this._element = element;
+				this.textField = element;
 				this.setupContent( element );
 			}
@@ -35,5 +37,5 @@
 		{
 			var editor,
-				element = this._element,
+				element = this.textField,
 				isInsertMode = !element;