Index: branches/5.3.x/core/admin_templates/stylesheets/block_style_edit.tpl
===================================================================
diff -u -r15483 -r15974
--- branches/5.3.x/core/admin_templates/stylesheets/block_style_edit.tpl	(.../block_style_edit.tpl)	(revision 15483)
+++ branches/5.3.x/core/admin_templates/stylesheets/block_style_edit.tpl	(.../block_style_edit.tpl)	(revision 15974)
@@ -53,7 +53,7 @@
 				{
 					if( ValidateRequired() )
 					{
-						openSelector('selectors', '<inp2:m_t t="stylesheets/style_editor" pass="all"/>', '', '850x460', 'OnOpenStyleEditor');
+						openSelector('selectors', '<inp2:m_t t="stylesheets/style_editor" pass="all" no_amp="1" js_escape="1"/>', '', '850x460', 'OnOpenStyleEditor');
 					}
 					else
 					{