var sector_ajax;function set_viewer_params(a){var b=a.find('#image_number');var c=a.find('#is_slideshow');if(b.length&&window.ImageViewer!==undefined){b.val(window.ImageViewer.showing);c.val(window.ImageViewer.is_slideshow?1:0)}}function sector_change_handler(){var b=$('#filter_articles_form');var c=$('#sector');if(c.val()=='--'){c.val('')}set_viewer_params(b);if(sector_ajax){ajax_submit(b,function(a){$("#articles").html(a)},'')}else{b.submit()}}function add_sector_change_listener(){var a=$('#sector');if(a.length){sector_ajax=$('#articles').length==1;a.change(sector_change_handler);if(sector_ajax&&!(a.val()===''||a.val()==='--')){a.change()}}}$(document).ready(function(){add_sector_change_listener()});