In Bitrix docs at http://dev.1c-bitrix.ru/user_help/service/form/components_2/form.php and in various articles about AJAX in Bitrix it is very poorly explained what exactly does "AJAX_MODE"=>"Y" in a component's configuration do. Can anyone explain what it changes when set to "Y"?
If you set AJAX_MODE as Y, the component will try to work without reload page. For example: when you change page, bitrix will try reload WORK_AREA.
If you know russian language, you can read it http://www.1c-bitrix.ru/blog/rsv/253.php