document.observe("dom:loaded", function(event) {
  var controller = $$('div.app_c').first().id;
  var action = $$('div.app_a').first().id;
  var loader = controller.gsub(/c_/,'')+'_'+action.gsub(/a_/,'');

  if(page_loaders[loader])
    page_loaders[loader].apply();
});