function lista(){
	_id = document.getElementById('kategorie');
	for(_l = 0; _l < _id.childNodes.length; _l++){
		_ident = _id.childNodes[_l].value;
		_checks = getElementsByName_iefix('div', 'element_'+_ident);
		_b = document.getElementById('s_b');
			_b.style.display = 'none';
//		alert('element_'+_ident+' '+_checks[0]);
		for(_i = 0; _i < _checks.length; _i++){
			_checks[_i].style.display='none';
		}
	}
	_checks = getElementsByName_iefix('div', 'element_'+_id.value);
	if(_checks.length > 0){
			_b = document.getElementById('s_b');
			_b.style.display = 'block';
		}
	for(_i = 0; _i < _checks.length; _i++){
		_checks[_i].style.display='block';
	}
	//_ajax.process('g', 'kat_list.php', 'data='+_id.value, 'tresc', false);
}

function getElementsByName_iefix(tag, name) {
     var elem = document.getElementsByTagName(tag);
     var arr = new Array();
     for(i = 0,iarr = 0; i < elem.length; i++) {
          att = elem[i].getAttribute("name");
          if(att == name) {
               arr[iarr] = elem[i];
               iarr++;
          }
     }
     return arr;
}