Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 5678)
+++ /CKEditor/trunk/CHANGES.html	(revision 5679)
@@ -60,4 +60,5 @@
 		<li><a href="http://dev.fckeditor.net/ticket/5100">#5100</a> : It was possible to drag&amp;drop some elements like context menu items or dropdown entries.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/5933">#5933</a> : Text color and background color panels don't have scrollbars anymore under office2003 and v2 skins.</li>
+		<li><a href="http://dev.fckeditor.net/ticket/5943">#5943</a> : An error is no longer generated when using percent or pixel values in the image dialog.</li>
 	</ul>
 	<h3>
Index: /CKEditor/trunk/_source/plugins/image/dialogs/image.js
===================================================================
--- /CKEditor/trunk/_source/plugins/image/dialogs/image.js	(revision 5678)
+++ /CKEditor/trunk/_source/plugins/image/dialogs/image.js	(revision 5679)
@@ -665,5 +665,5 @@
 																	}
 																	else
-																		element.setStyle( 'width', value + 'px');
+																		element.setStyle( 'width', CKEDITOR.tools.cssLength( value ) );
 																}
 																else if ( type == CLEANUP )
@@ -716,5 +716,5 @@
 																	}
 																	else
-																		element.setStyle( 'height', value + 'px' );
+																		element.setStyle( 'height',  CKEDITOR.tools.cssLength( value ) );
 																}
 																else if ( type == CLEANUP )