Index: trunk/kernel/admin/include/toolbar/browse.php
===================================================================
diff -u -r3648 -r3736
--- trunk/kernel/admin/include/toolbar/browse.php	(.../browse.php)	(revision 3648)
+++ trunk/kernel/admin/include/toolbar/browse.php	(.../browse.php)	(revision 3736)
@@ -161,6 +161,7 @@
 $lang_Sort = language('la_Text_Sort');
 $lang_PerPage = language('la_prompt_PerPage');
 $lang_Select = language('la_Text_Select');
+$lang_InDevelopment = language('la_Text_InDevelopment');
 
 print <<<END
 
@@ -203,8 +204,8 @@
 var lang_Active = "$lang_Active";
 var lang_SubCats = "$lang_SubCats";
 var lang_SubItems = "$lang_SubItems";
+var lang_InDevelopment = "$lang_InDevelopment";
 
-
 var m_tab_CatTab_hide = $m_tab_CatTab_Hide;
 var hostname = '$rootURL';
 var env = '$envar';
@@ -542,12 +543,15 @@
 		var formname = '';
 		var action_prefix ='';
 
-		var isCatImportExport = activeTab && isAnyChecked('categories') && (actionValue == 'import' || actionValue == 'export');
+		var isCategoryExport = activeTab && isAnyChecked('categories') && (actionValue == 'export');
 		
 		// skip news & topics for export operations (not to raise js errors)
-		var allowProcessing = (activeTab.getAttribute("PrefixSpecial") != 'n' && activeTab.getAttribute("PrefixSpecial") != 'bb');
+		if ((actionValue == 'export') && (activeTab.getAttribute("PrefixSpecial") == 'n' || activeTab.getAttribute("PrefixSpecial") == 'bb')) {
+			alert(lang_InDevelopment);
+			return false;
+		}
 		
-		if (allowProcessing && activeTab && (!isAnyChecked('categories') || isCatImportExport))
+		if (activeTab && (!isAnyChecked('categories') || isCategoryExport))
 		{
 			form_name = activeTab.id;
 			action_prefix = activeTab.getAttribute("ActionPrefix");