Event.observe(window, 'load', function  () {
	
	
	$$('.gyik').each(function  (elem) {
	Event.observe(elem, 'click', function  () {
		v=$("v_"+elem.id.replace("k_",""));
	if (v.style.display!="none") {
		v.style.display='none';
	}else{
		v.style.display='block';
	}
	});
});
	
});