{* open another window to search items in function 'related to' $http_vars: associate array in parameters that send to the following page $i: general $ids: ids of all item to display $item_count_select $item_htmls: information of items(association array) array( 'html' => (summary of item in HTML), 'item_id' => id of item ) $itemcount: number of items to display a page $jumpto_url $maxpage $order_by_select $page $page_no_label $pages $search_var[]: array of parameter name that send in submit $selected $export_enabled: when items in this page can export, this parameter is defined. *}>