document.observe("dom:loaded", function() {

    $$('.pager-zone-toggler').each(function(toggler){
		var parent = toggler.ancestors()[0];
		var pagerZone = parent.getElementsByClassName('pager-additional-zone')[0];
		toggler.observe('click', function(e){
			Effect.toggle(pagerZone, 'appear',{duration: 0.5});
		});
		pagerZone.hide();
	})
	
});