function onas()
{
	$$('#hp div').each(function(element){
		element.hide();
	});
	
	$$('#hp h3 a').each(function(element){
		Event.observe(element,'click',handlerClickEvent,false);
	});
	
	function handlerClickEvent(event){
	   var element = Event.element(event);
	   var div = $('opis_'+element.title);
	   if (!Element.visible(div)) {
	   		new Effect.BlindDown(div);
	   	} else {
	   		new Effect.BlindUp(div);
	   	}
	}
}
addOnLoad(onas);