function openwin(url, x, y, name) 
{
    cx = screen.width / 2 - ( x / 2 );
    cy = screen.height / 2 - ( y / 2 );
    window.open( url, name, "toolbar=no,status=no,location=no,directories=no,menubar=no,resizable=yes,width="
                            + x + ",height=" + y + ",scrollbars=no,top=" + cy + ",left=" + cx );
}

function jsMmenu(obj, active)
{
    obj.className = 't item' + (active ? '_active' : '');
}