window.onload = function() {
	function add_focus_top(e) {
		e.onfocus=function() {
			this.className='focus';
		}
		e.onblur=function() {
			this.className='';
		}
	}
	function add_focus_left(a,li) {
		var mli=li;
		a.onfocus=function() {
			mli.className='hover';
		}
		a.onblur=function() {
			mli.className='';
		}
	}	
	var lista,i,el,ml=document.getElementById('rozwin');
	if (ml) {
		lista=ml.getElementsByTagName('a');
		for (i=0;i<lista.length;i++) {
			el=lista[i].parentNode.parentNode.parentNode;
			if (!el || el.nodeName.toLowerCase()!='li') continue;
			add_focus_left(lista[i],el);
		}
	}
}