var act_location = 'none';
            function location_change(element)    
            {
                if (typeof(element)!='object')
                        element = document.getElementById(element);
                if (element)
                    if (element.id != act_location)
                    {
                        document.getElementById('rcol').innerHTML = document.getElementById('data_' + element.id).innerHTML;
                        element.className = "act_location";
                        if (document.getElementById(act_location))
                        {
                            document.getElementById(act_location).className = 'none_act_location';
                        }
                        act_location = element.id;
                    }        
            }